FLUJOS/BACK_BACK/node_modules/force-graph/dist/force-graph.js
2025-11-07 00:06:12 +01:00

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// Version 1.43.5 force-graph - https://github.com/vasturiano/force-graph
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.ForceGraph = factory());
})(this, (function () { 'use strict';
function styleInject(css, ref) {
if ( ref === void 0 ) ref = {};
var insertAt = ref.insertAt;
if (!css || typeof document === 'undefined') { return; }
var head = document.head || document.getElementsByTagName('head')[0];
var style = document.createElement('style');
style.type = 'text/css';
if (insertAt === 'top') {
if (head.firstChild) {
head.insertBefore(style, head.firstChild);
} else {
head.appendChild(style);
}
} else {
head.appendChild(style);
}
if (style.styleSheet) {
style.styleSheet.cssText = css;
} else {
style.appendChild(document.createTextNode(css));
}
}
var css_248z = ".force-graph-container canvas {\n display: block;\n user-select: none;\n outline: none;\n -webkit-tap-highlight-color: transparent;\n}\n\n.force-graph-container .graph-tooltip {\n position: absolute;\n top: 0;\n font-family: sans-serif;\n font-size: 16px;\n padding: 4px;\n border-radius: 3px;\n color: #eee;\n background: rgba(0,0,0,0.65);\n visibility: hidden; /* by default */\n}\n\n.force-graph-container .clickable {\n cursor: pointer;\n}\n\n.force-graph-container .grabbable {\n cursor: move;\n cursor: grab;\n cursor: -moz-grab;\n cursor: -webkit-grab;\n}\n\n.force-graph-container .grabbable:active {\n cursor: grabbing;\n cursor: -moz-grabbing;\n cursor: -webkit-grabbing;\n}\n";
styleInject(css_248z);
function _construct(t, e, r) {
if (_isNativeReflectConstruct()) return Reflect.construct.apply(null, arguments);
var o = [null];
o.push.apply(o, e);
var p = new (t.bind.apply(t, o))();
return r && _setPrototypeOf(p, r.prototype), p;
}
function _isNativeReflectConstruct() {
try {
var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));
} catch (t) {}
return (_isNativeReflectConstruct = function () {
return !!t;
})();
}
function _iterableToArrayLimit$2(r, l) {
var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"];
if (null != t) {
var e,
n,
i,
u,
a = [],
f = !0,
o = !1;
try {
if (i = (t = t.call(r)).next, 0 === l) {
if (Object(t) !== t) return;
f = !1;
} else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0);
} catch (r) {
o = !0, n = r;
} finally {
try {
if (!f && null != t.return && (u = t.return(), Object(u) !== u)) return;
} finally {
if (o) throw n;
}
}
return a;
}
}
function ownKeys(e, r) {
var t = Object.keys(e);
if (Object.getOwnPropertySymbols) {
var o = Object.getOwnPropertySymbols(e);
r && (o = o.filter(function (r) {
return Object.getOwnPropertyDescriptor(e, r).enumerable;
})), t.push.apply(t, o);
}
return t;
}
function _objectSpread2(e) {
for (var r = 1; r < arguments.length; r++) {
var t = null != arguments[r] ? arguments[r] : {};
r % 2 ? ownKeys(Object(t), !0).forEach(function (r) {
_defineProperty(e, r, t[r]);
}) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) {
Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r));
});
}
return e;
}
function _toPrimitive$3(t, r) {
if ("object" != typeof t || !t) return t;
var e = t[Symbol.toPrimitive];
if (void 0 !== e) {
var i = e.call(t, r || "default");
if ("object" != typeof i) return i;
throw new TypeError("@@toPrimitive must return a primitive value.");
}
return ("string" === r ? String : Number)(t);
}
function _toPropertyKey$3(t) {
var i = _toPrimitive$3(t, "string");
return "symbol" == typeof i ? i : String(i);
}
function _typeof$1(o) {
"@babel/helpers - typeof";
return _typeof$1 = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) {
return typeof o;
} : function (o) {
return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o;
}, _typeof$1(o);
}
function _defineProperty(obj, key, value) {
key = _toPropertyKey$3(key);
if (key in obj) {
Object.defineProperty(obj, key, {
value: value,
enumerable: true,
configurable: true,
writable: true
});
} else {
obj[key] = value;
}
return obj;
}
function _setPrototypeOf(o, p) {
_setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) {
o.__proto__ = p;
return o;
};
return _setPrototypeOf(o, p);
}
function _slicedToArray$2(arr, i) {
return _arrayWithHoles$2(arr) || _iterableToArrayLimit$2(arr, i) || _unsupportedIterableToArray$3(arr, i) || _nonIterableRest$2();
}
function _toConsumableArray$2(arr) {
return _arrayWithoutHoles$2(arr) || _iterableToArray$2(arr) || _unsupportedIterableToArray$3(arr) || _nonIterableSpread$2();
}
function _arrayWithoutHoles$2(arr) {
if (Array.isArray(arr)) return _arrayLikeToArray$3(arr);
}
function _arrayWithHoles$2(arr) {
if (Array.isArray(arr)) return arr;
}
function _iterableToArray$2(iter) {
if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter);
}
function _unsupportedIterableToArray$3(o, minLen) {
if (!o) return;
if (typeof o === "string") return _arrayLikeToArray$3(o, minLen);
var n = Object.prototype.toString.call(o).slice(8, -1);
if (n === "Object" && o.constructor) n = o.constructor.name;
if (n === "Map" || n === "Set") return Array.from(o);
if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray$3(o, minLen);
}
function _arrayLikeToArray$3(arr, len) {
if (len == null || len > arr.length) len = arr.length;
for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
return arr2;
}
function _nonIterableSpread$2() {
throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}
function _nonIterableRest$2() {
throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}
var xhtml = "http://www.w3.org/1999/xhtml";
var namespaces = {
svg: "http://www.w3.org/2000/svg",
xhtml: xhtml,
xlink: "http://www.w3.org/1999/xlink",
xml: "http://www.w3.org/XML/1998/namespace",
xmlns: "http://www.w3.org/2000/xmlns/"
};
function namespace(name) {
var prefix = name += "", i = prefix.indexOf(":");
if (i >= 0 && (prefix = name.slice(0, i)) !== "xmlns") name = name.slice(i + 1);
return namespaces.hasOwnProperty(prefix) ? {space: namespaces[prefix], local: name} : name; // eslint-disable-line no-prototype-builtins
}
function creatorInherit(name) {
return function() {
var document = this.ownerDocument,
uri = this.namespaceURI;
return uri === xhtml && document.documentElement.namespaceURI === xhtml
? document.createElement(name)
: document.createElementNS(uri, name);
};
}
function creatorFixed(fullname) {
return function() {
return this.ownerDocument.createElementNS(fullname.space, fullname.local);
};
}
function creator(name) {
var fullname = namespace(name);
return (fullname.local
? creatorFixed
: creatorInherit)(fullname);
}
function none() {}
function selector(selector) {
return selector == null ? none : function() {
return this.querySelector(selector);
};
}
function selection_select(select) {
if (typeof select !== "function") select = selector(select);
for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) {
if ((node = group[i]) && (subnode = select.call(node, node.__data__, i, group))) {
if ("__data__" in node) subnode.__data__ = node.__data__;
subgroup[i] = subnode;
}
}
}
return new Selection$1(subgroups, this._parents);
}
// Given something array like (or null), returns something that is strictly an
// array. This is used to ensure that array-like objects passed to d3.selectAll
// or selection.selectAll are converted into proper arrays when creating a
// selection; we dont ever want to create a selection backed by a live
// HTMLCollection or NodeList. However, note that selection.selectAll will use a
// static NodeList as a group, since it safely derived from querySelectorAll.
function array(x) {
return x == null ? [] : Array.isArray(x) ? x : Array.from(x);
}
function empty() {
return [];
}
function selectorAll(selector) {
return selector == null ? empty : function() {
return this.querySelectorAll(selector);
};
}
function arrayAll(select) {
return function() {
return array(select.apply(this, arguments));
};
}
function selection_selectAll(select) {
if (typeof select === "function") select = arrayAll(select);
else select = selectorAll(select);
for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {
if (node = group[i]) {
subgroups.push(select.call(node, node.__data__, i, group));
parents.push(node);
}
}
}
return new Selection$1(subgroups, parents);
}
function matcher(selector) {
return function() {
return this.matches(selector);
};
}
function childMatcher(selector) {
return function(node) {
return node.matches(selector);
};
}
var find$1 = Array.prototype.find;
function childFind(match) {
return function() {
return find$1.call(this.children, match);
};
}
function childFirst() {
return this.firstElementChild;
}
function selection_selectChild(match) {
return this.select(match == null ? childFirst
: childFind(typeof match === "function" ? match : childMatcher(match)));
}
var filter = Array.prototype.filter;
function children() {
return Array.from(this.children);
}
function childrenFilter(match) {
return function() {
return filter.call(this.children, match);
};
}
function selection_selectChildren(match) {
return this.selectAll(match == null ? children
: childrenFilter(typeof match === "function" ? match : childMatcher(match)));
}
function selection_filter(match) {
if (typeof match !== "function") match = matcher(match);
for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) {
if ((node = group[i]) && match.call(node, node.__data__, i, group)) {
subgroup.push(node);
}
}
}
return new Selection$1(subgroups, this._parents);
}
function sparse(update) {
return new Array(update.length);
}
function selection_enter() {
return new Selection$1(this._enter || this._groups.map(sparse), this._parents);
}
function EnterNode(parent, datum) {
this.ownerDocument = parent.ownerDocument;
this.namespaceURI = parent.namespaceURI;
this._next = null;
this._parent = parent;
this.__data__ = datum;
}
EnterNode.prototype = {
constructor: EnterNode,
appendChild: function(child) { return this._parent.insertBefore(child, this._next); },
insertBefore: function(child, next) { return this._parent.insertBefore(child, next); },
querySelector: function(selector) { return this._parent.querySelector(selector); },
querySelectorAll: function(selector) { return this._parent.querySelectorAll(selector); }
};
function constant$4(x) {
return function() {
return x;
};
}
function bindIndex(parent, group, enter, update, exit, data) {
var i = 0,
node,
groupLength = group.length,
dataLength = data.length;
// Put any non-null nodes that fit into update.
// Put any null nodes into enter.
// Put any remaining data into enter.
for (; i < dataLength; ++i) {
if (node = group[i]) {
node.__data__ = data[i];
update[i] = node;
} else {
enter[i] = new EnterNode(parent, data[i]);
}
}
// Put any non-null nodes that dont fit into exit.
for (; i < groupLength; ++i) {
if (node = group[i]) {
exit[i] = node;
}
}
}
function bindKey(parent, group, enter, update, exit, data, key) {
var i,
node,
nodeByKeyValue = new Map,
groupLength = group.length,
dataLength = data.length,
keyValues = new Array(groupLength),
keyValue;
// Compute the key for each node.
// If multiple nodes have the same key, the duplicates are added to exit.
for (i = 0; i < groupLength; ++i) {
if (node = group[i]) {
keyValues[i] = keyValue = key.call(node, node.__data__, i, group) + "";
if (nodeByKeyValue.has(keyValue)) {
exit[i] = node;
} else {
nodeByKeyValue.set(keyValue, node);
}
}
}
// Compute the key for each datum.
// If there a node associated with this key, join and add it to update.
// If there is not (or the key is a duplicate), add it to enter.
for (i = 0; i < dataLength; ++i) {
keyValue = key.call(parent, data[i], i, data) + "";
if (node = nodeByKeyValue.get(keyValue)) {
update[i] = node;
node.__data__ = data[i];
nodeByKeyValue.delete(keyValue);
} else {
enter[i] = new EnterNode(parent, data[i]);
}
}
// Add any remaining nodes that were not bound to data to exit.
for (i = 0; i < groupLength; ++i) {
if ((node = group[i]) && (nodeByKeyValue.get(keyValues[i]) === node)) {
exit[i] = node;
}
}
}
function datum(node) {
return node.__data__;
}
function selection_data(value, key) {
if (!arguments.length) return Array.from(this, datum);
var bind = key ? bindKey : bindIndex,
parents = this._parents,
groups = this._groups;
if (typeof value !== "function") value = constant$4(value);
for (var m = groups.length, update = new Array(m), enter = new Array(m), exit = new Array(m), j = 0; j < m; ++j) {
var parent = parents[j],
group = groups[j],
groupLength = group.length,
data = arraylike(value.call(parent, parent && parent.__data__, j, parents)),
dataLength = data.length,
enterGroup = enter[j] = new Array(dataLength),
updateGroup = update[j] = new Array(dataLength),
exitGroup = exit[j] = new Array(groupLength);
bind(parent, group, enterGroup, updateGroup, exitGroup, data, key);
// Now connect the enter nodes to their following update node, such that
// appendChild can insert the materialized enter node before this node,
// rather than at the end of the parent node.
for (var i0 = 0, i1 = 0, previous, next; i0 < dataLength; ++i0) {
if (previous = enterGroup[i0]) {
if (i0 >= i1) i1 = i0 + 1;
while (!(next = updateGroup[i1]) && ++i1 < dataLength);
previous._next = next || null;
}
}
}
update = new Selection$1(update, parents);
update._enter = enter;
update._exit = exit;
return update;
}
// Given some data, this returns an array-like view of it: an object that
// exposes a length property and allows numeric indexing. Note that unlike
// selectAll, this isnt worried about “live” collections because the resulting
// array will only be used briefly while data is being bound. (It is possible to
// cause the data to change while iterating by using a key function, but please
// dont; wed rather avoid a gratuitous copy.)
function arraylike(data) {
return typeof data === "object" && "length" in data
? data // Array, TypedArray, NodeList, array-like
: Array.from(data); // Map, Set, iterable, string, or anything else
}
function selection_exit() {
return new Selection$1(this._exit || this._groups.map(sparse), this._parents);
}
function selection_join(onenter, onupdate, onexit) {
var enter = this.enter(), update = this, exit = this.exit();
if (typeof onenter === "function") {
enter = onenter(enter);
if (enter) enter = enter.selection();
} else {
enter = enter.append(onenter + "");
}
if (onupdate != null) {
update = onupdate(update);
if (update) update = update.selection();
}
if (onexit == null) exit.remove(); else onexit(exit);
return enter && update ? enter.merge(update).order() : update;
}
function selection_merge(context) {
var selection = context.selection ? context.selection() : context;
for (var groups0 = this._groups, groups1 = selection._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) {
for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) {
if (node = group0[i] || group1[i]) {
merge[i] = node;
}
}
}
for (; j < m0; ++j) {
merges[j] = groups0[j];
}
return new Selection$1(merges, this._parents);
}
function selection_order() {
for (var groups = this._groups, j = -1, m = groups.length; ++j < m;) {
for (var group = groups[j], i = group.length - 1, next = group[i], node; --i >= 0;) {
if (node = group[i]) {
if (next && node.compareDocumentPosition(next) ^ 4) next.parentNode.insertBefore(node, next);
next = node;
}
}
}
return this;
}
function selection_sort(compare) {
if (!compare) compare = ascending;
function compareNode(a, b) {
return a && b ? compare(a.__data__, b.__data__) : !a - !b;
}
for (var groups = this._groups, m = groups.length, sortgroups = new Array(m), j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, sortgroup = sortgroups[j] = new Array(n), node, i = 0; i < n; ++i) {
if (node = group[i]) {
sortgroup[i] = node;
}
}
sortgroup.sort(compareNode);
}
return new Selection$1(sortgroups, this._parents).order();
}
function ascending(a, b) {
return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
}
function selection_call() {
var callback = arguments[0];
arguments[0] = this;
callback.apply(null, arguments);
return this;
}
function selection_nodes() {
return Array.from(this);
}
function selection_node() {
for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) {
for (var group = groups[j], i = 0, n = group.length; i < n; ++i) {
var node = group[i];
if (node) return node;
}
}
return null;
}
function selection_size() {
let size = 0;
for (const node of this) ++size; // eslint-disable-line no-unused-vars
return size;
}
function selection_empty() {
return !this.node();
}
function selection_each(callback) {
for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) {
for (var group = groups[j], i = 0, n = group.length, node; i < n; ++i) {
if (node = group[i]) callback.call(node, node.__data__, i, group);
}
}
return this;
}
function attrRemove$1(name) {
return function() {
this.removeAttribute(name);
};
}
function attrRemoveNS$1(fullname) {
return function() {
this.removeAttributeNS(fullname.space, fullname.local);
};
}
function attrConstant$1(name, value) {
return function() {
this.setAttribute(name, value);
};
}
function attrConstantNS$1(fullname, value) {
return function() {
this.setAttributeNS(fullname.space, fullname.local, value);
};
}
function attrFunction$1(name, value) {
return function() {
var v = value.apply(this, arguments);
if (v == null) this.removeAttribute(name);
else this.setAttribute(name, v);
};
}
function attrFunctionNS$1(fullname, value) {
return function() {
var v = value.apply(this, arguments);
if (v == null) this.removeAttributeNS(fullname.space, fullname.local);
else this.setAttributeNS(fullname.space, fullname.local, v);
};
}
function selection_attr(name, value) {
var fullname = namespace(name);
if (arguments.length < 2) {
var node = this.node();
return fullname.local
? node.getAttributeNS(fullname.space, fullname.local)
: node.getAttribute(fullname);
}
return this.each((value == null
? (fullname.local ? attrRemoveNS$1 : attrRemove$1) : (typeof value === "function"
? (fullname.local ? attrFunctionNS$1 : attrFunction$1)
: (fullname.local ? attrConstantNS$1 : attrConstant$1)))(fullname, value));
}
function defaultView(node) {
return (node.ownerDocument && node.ownerDocument.defaultView) // node is a Node
|| (node.document && node) // node is a Window
|| node.defaultView; // node is a Document
}
function styleRemove$1(name) {
return function() {
this.style.removeProperty(name);
};
}
function styleConstant$1(name, value, priority) {
return function() {
this.style.setProperty(name, value, priority);
};
}
function styleFunction$1(name, value, priority) {
return function() {
var v = value.apply(this, arguments);
if (v == null) this.style.removeProperty(name);
else this.style.setProperty(name, v, priority);
};
}
function selection_style(name, value, priority) {
return arguments.length > 1
? this.each((value == null
? styleRemove$1 : typeof value === "function"
? styleFunction$1
: styleConstant$1)(name, value, priority == null ? "" : priority))
: styleValue(this.node(), name);
}
function styleValue(node, name) {
return node.style.getPropertyValue(name)
|| defaultView(node).getComputedStyle(node, null).getPropertyValue(name);
}
function propertyRemove(name) {
return function() {
delete this[name];
};
}
function propertyConstant(name, value) {
return function() {
this[name] = value;
};
}
function propertyFunction(name, value) {
return function() {
var v = value.apply(this, arguments);
if (v == null) delete this[name];
else this[name] = v;
};
}
function selection_property(name, value) {
return arguments.length > 1
? this.each((value == null
? propertyRemove : typeof value === "function"
? propertyFunction
: propertyConstant)(name, value))
: this.node()[name];
}
function classArray(string) {
return string.trim().split(/^|\s+/);
}
function classList(node) {
return node.classList || new ClassList(node);
}
function ClassList(node) {
this._node = node;
this._names = classArray(node.getAttribute("class") || "");
}
ClassList.prototype = {
add: function(name) {
var i = this._names.indexOf(name);
if (i < 0) {
this._names.push(name);
this._node.setAttribute("class", this._names.join(" "));
}
},
remove: function(name) {
var i = this._names.indexOf(name);
if (i >= 0) {
this._names.splice(i, 1);
this._node.setAttribute("class", this._names.join(" "));
}
},
contains: function(name) {
return this._names.indexOf(name) >= 0;
}
};
function classedAdd(node, names) {
var list = classList(node), i = -1, n = names.length;
while (++i < n) list.add(names[i]);
}
function classedRemove(node, names) {
var list = classList(node), i = -1, n = names.length;
while (++i < n) list.remove(names[i]);
}
function classedTrue(names) {
return function() {
classedAdd(this, names);
};
}
function classedFalse(names) {
return function() {
classedRemove(this, names);
};
}
function classedFunction(names, value) {
return function() {
(value.apply(this, arguments) ? classedAdd : classedRemove)(this, names);
};
}
function selection_classed(name, value) {
var names = classArray(name + "");
if (arguments.length < 2) {
var list = classList(this.node()), i = -1, n = names.length;
while (++i < n) if (!list.contains(names[i])) return false;
return true;
}
return this.each((typeof value === "function"
? classedFunction : value
? classedTrue
: classedFalse)(names, value));
}
function textRemove() {
this.textContent = "";
}
function textConstant$1(value) {
return function() {
this.textContent = value;
};
}
function textFunction$1(value) {
return function() {
var v = value.apply(this, arguments);
this.textContent = v == null ? "" : v;
};
}
function selection_text(value) {
return arguments.length
? this.each(value == null
? textRemove : (typeof value === "function"
? textFunction$1
: textConstant$1)(value))
: this.node().textContent;
}
function htmlRemove() {
this.innerHTML = "";
}
function htmlConstant(value) {
return function() {
this.innerHTML = value;
};
}
function htmlFunction(value) {
return function() {
var v = value.apply(this, arguments);
this.innerHTML = v == null ? "" : v;
};
}
function selection_html(value) {
return arguments.length
? this.each(value == null
? htmlRemove : (typeof value === "function"
? htmlFunction
: htmlConstant)(value))
: this.node().innerHTML;
}
function raise() {
if (this.nextSibling) this.parentNode.appendChild(this);
}
function selection_raise() {
return this.each(raise);
}
function lower() {
if (this.previousSibling) this.parentNode.insertBefore(this, this.parentNode.firstChild);
}
function selection_lower() {
return this.each(lower);
}
function selection_append(name) {
var create = typeof name === "function" ? name : creator(name);
return this.select(function() {
return this.appendChild(create.apply(this, arguments));
});
}
function constantNull() {
return null;
}
function selection_insert(name, before) {
var create = typeof name === "function" ? name : creator(name),
select = before == null ? constantNull : typeof before === "function" ? before : selector(before);
return this.select(function() {
return this.insertBefore(create.apply(this, arguments), select.apply(this, arguments) || null);
});
}
function remove() {
var parent = this.parentNode;
if (parent) parent.removeChild(this);
}
function selection_remove() {
return this.each(remove);
}
function selection_cloneShallow() {
var clone = this.cloneNode(false), parent = this.parentNode;
return parent ? parent.insertBefore(clone, this.nextSibling) : clone;
}
function selection_cloneDeep() {
var clone = this.cloneNode(true), parent = this.parentNode;
return parent ? parent.insertBefore(clone, this.nextSibling) : clone;
}
function selection_clone(deep) {
return this.select(deep ? selection_cloneDeep : selection_cloneShallow);
}
function selection_datum(value) {
return arguments.length
? this.property("__data__", value)
: this.node().__data__;
}
function contextListener(listener) {
return function(event) {
listener.call(this, event, this.__data__);
};
}
function parseTypenames$1(typenames) {
return typenames.trim().split(/^|\s+/).map(function(t) {
var name = "", i = t.indexOf(".");
if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i);
return {type: t, name: name};
});
}
function onRemove(typename) {
return function() {
var on = this.__on;
if (!on) return;
for (var j = 0, i = -1, m = on.length, o; j < m; ++j) {
if (o = on[j], (!typename.type || o.type === typename.type) && o.name === typename.name) {
this.removeEventListener(o.type, o.listener, o.options);
} else {
on[++i] = o;
}
}
if (++i) on.length = i;
else delete this.__on;
};
}
function onAdd(typename, value, options) {
return function() {
var on = this.__on, o, listener = contextListener(value);
if (on) for (var j = 0, m = on.length; j < m; ++j) {
if ((o = on[j]).type === typename.type && o.name === typename.name) {
this.removeEventListener(o.type, o.listener, o.options);
this.addEventListener(o.type, o.listener = listener, o.options = options);
o.value = value;
return;
}
}
this.addEventListener(typename.type, listener, options);
o = {type: typename.type, name: typename.name, value: value, listener: listener, options: options};
if (!on) this.__on = [o];
else on.push(o);
};
}
function selection_on(typename, value, options) {
var typenames = parseTypenames$1(typename + ""), i, n = typenames.length, t;
if (arguments.length < 2) {
var on = this.node().__on;
if (on) for (var j = 0, m = on.length, o; j < m; ++j) {
for (i = 0, o = on[j]; i < n; ++i) {
if ((t = typenames[i]).type === o.type && t.name === o.name) {
return o.value;
}
}
}
return;
}
on = value ? onAdd : onRemove;
for (i = 0; i < n; ++i) this.each(on(typenames[i], value, options));
return this;
}
function dispatchEvent(node, type, params) {
var window = defaultView(node),
event = window.CustomEvent;
if (typeof event === "function") {
event = new event(type, params);
} else {
event = window.document.createEvent("Event");
if (params) event.initEvent(type, params.bubbles, params.cancelable), event.detail = params.detail;
else event.initEvent(type, false, false);
}
node.dispatchEvent(event);
}
function dispatchConstant(type, params) {
return function() {
return dispatchEvent(this, type, params);
};
}
function dispatchFunction(type, params) {
return function() {
return dispatchEvent(this, type, params.apply(this, arguments));
};
}
function selection_dispatch(type, params) {
return this.each((typeof params === "function"
? dispatchFunction
: dispatchConstant)(type, params));
}
function* selection_iterator() {
for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) {
for (var group = groups[j], i = 0, n = group.length, node; i < n; ++i) {
if (node = group[i]) yield node;
}
}
}
var root$1 = [null];
function Selection$1(groups, parents) {
this._groups = groups;
this._parents = parents;
}
function selection() {
return new Selection$1([[document.documentElement]], root$1);
}
function selection_selection() {
return this;
}
Selection$1.prototype = selection.prototype = {
constructor: Selection$1,
select: selection_select,
selectAll: selection_selectAll,
selectChild: selection_selectChild,
selectChildren: selection_selectChildren,
filter: selection_filter,
data: selection_data,
enter: selection_enter,
exit: selection_exit,
join: selection_join,
merge: selection_merge,
selection: selection_selection,
order: selection_order,
sort: selection_sort,
call: selection_call,
nodes: selection_nodes,
node: selection_node,
size: selection_size,
empty: selection_empty,
each: selection_each,
attr: selection_attr,
style: selection_style,
property: selection_property,
classed: selection_classed,
text: selection_text,
html: selection_html,
raise: selection_raise,
lower: selection_lower,
append: selection_append,
insert: selection_insert,
remove: selection_remove,
clone: selection_clone,
datum: selection_datum,
on: selection_on,
dispatch: selection_dispatch,
[Symbol.iterator]: selection_iterator
};
function d3Select(selector) {
return typeof selector === "string"
? new Selection$1([[document.querySelector(selector)]], [document.documentElement])
: new Selection$1([[selector]], root$1);
}
function sourceEvent(event) {
let sourceEvent;
while (sourceEvent = event.sourceEvent) event = sourceEvent;
return event;
}
function pointer(event, node) {
event = sourceEvent(event);
if (node === undefined) node = event.currentTarget;
if (node) {
var svg = node.ownerSVGElement || node;
if (svg.createSVGPoint) {
var point = svg.createSVGPoint();
point.x = event.clientX, point.y = event.clientY;
point = point.matrixTransform(node.getScreenCTM().inverse());
return [point.x, point.y];
}
if (node.getBoundingClientRect) {
var rect = node.getBoundingClientRect();
return [event.clientX - rect.left - node.clientLeft, event.clientY - rect.top - node.clientTop];
}
}
return [event.pageX, event.pageY];
}
var noop = {value: () => {}};
function dispatch() {
for (var i = 0, n = arguments.length, _ = {}, t; i < n; ++i) {
if (!(t = arguments[i] + "") || (t in _) || /[\s.]/.test(t)) throw new Error("illegal type: " + t);
_[t] = [];
}
return new Dispatch(_);
}
function Dispatch(_) {
this._ = _;
}
function parseTypenames(typenames, types) {
return typenames.trim().split(/^|\s+/).map(function(t) {
var name = "", i = t.indexOf(".");
if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i);
if (t && !types.hasOwnProperty(t)) throw new Error("unknown type: " + t);
return {type: t, name: name};
});
}
Dispatch.prototype = dispatch.prototype = {
constructor: Dispatch,
on: function(typename, callback) {
var _ = this._,
T = parseTypenames(typename + "", _),
t,
i = -1,
n = T.length;
// If no callback was specified, return the callback of the given type and name.
if (arguments.length < 2) {
while (++i < n) if ((t = (typename = T[i]).type) && (t = get$1(_[t], typename.name))) return t;
return;
}
// If a type was specified, set the callback for the given type and name.
// Otherwise, if a null callback was specified, remove callbacks of the given name.
if (callback != null && typeof callback !== "function") throw new Error("invalid callback: " + callback);
while (++i < n) {
if (t = (typename = T[i]).type) _[t] = set$1(_[t], typename.name, callback);
else if (callback == null) for (t in _) _[t] = set$1(_[t], typename.name, null);
}
return this;
},
copy: function() {
var copy = {}, _ = this._;
for (var t in _) copy[t] = _[t].slice();
return new Dispatch(copy);
},
call: function(type, that) {
if ((n = arguments.length - 2) > 0) for (var args = new Array(n), i = 0, n, t; i < n; ++i) args[i] = arguments[i + 2];
if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type);
for (t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args);
},
apply: function(type, that, args) {
if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type);
for (var t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args);
}
};
function get$1(type, name) {
for (var i = 0, n = type.length, c; i < n; ++i) {
if ((c = type[i]).name === name) {
return c.value;
}
}
}
function set$1(type, name, callback) {
for (var i = 0, n = type.length; i < n; ++i) {
if (type[i].name === name) {
type[i] = noop, type = type.slice(0, i).concat(type.slice(i + 1));
break;
}
}
if (callback != null) type.push({name: name, value: callback});
return type;
}
// These are typically used in conjunction with noevent to ensure that we can
// preventDefault on the event.
const nonpassive = {passive: false};
const nonpassivecapture = {capture: true, passive: false};
function nopropagation$1(event) {
event.stopImmediatePropagation();
}
function noevent$1(event) {
event.preventDefault();
event.stopImmediatePropagation();
}
function dragDisable(view) {
var root = view.document.documentElement,
selection = d3Select(view).on("dragstart.drag", noevent$1, nonpassivecapture);
if ("onselectstart" in root) {
selection.on("selectstart.drag", noevent$1, nonpassivecapture);
} else {
root.__noselect = root.style.MozUserSelect;
root.style.MozUserSelect = "none";
}
}
function yesdrag(view, noclick) {
var root = view.document.documentElement,
selection = d3Select(view).on("dragstart.drag", null);
if (noclick) {
selection.on("click.drag", noevent$1, nonpassivecapture);
setTimeout(function() { selection.on("click.drag", null); }, 0);
}
if ("onselectstart" in root) {
selection.on("selectstart.drag", null);
} else {
root.style.MozUserSelect = root.__noselect;
delete root.__noselect;
}
}
var constant$3 = x => () => x;
function DragEvent(type, {
sourceEvent,
subject,
target,
identifier,
active,
x, y, dx, dy,
dispatch
}) {
Object.defineProperties(this, {
type: {value: type, enumerable: true, configurable: true},
sourceEvent: {value: sourceEvent, enumerable: true, configurable: true},
subject: {value: subject, enumerable: true, configurable: true},
target: {value: target, enumerable: true, configurable: true},
identifier: {value: identifier, enumerable: true, configurable: true},
active: {value: active, enumerable: true, configurable: true},
x: {value: x, enumerable: true, configurable: true},
y: {value: y, enumerable: true, configurable: true},
dx: {value: dx, enumerable: true, configurable: true},
dy: {value: dy, enumerable: true, configurable: true},
_: {value: dispatch}
});
}
DragEvent.prototype.on = function() {
var value = this._.on.apply(this._, arguments);
return value === this._ ? this : value;
};
// Ignore right-click, since that should open the context menu.
function defaultFilter$1(event) {
return !event.ctrlKey && !event.button;
}
function defaultContainer() {
return this.parentNode;
}
function defaultSubject(event, d) {
return d == null ? {x: event.x, y: event.y} : d;
}
function defaultTouchable$1() {
return navigator.maxTouchPoints || ("ontouchstart" in this);
}
function d3Drag() {
var filter = defaultFilter$1,
container = defaultContainer,
subject = defaultSubject,
touchable = defaultTouchable$1,
gestures = {},
listeners = dispatch("start", "drag", "end"),
active = 0,
mousedownx,
mousedowny,
mousemoving,
touchending,
clickDistance2 = 0;
function drag(selection) {
selection
.on("mousedown.drag", mousedowned)
.filter(touchable)
.on("touchstart.drag", touchstarted)
.on("touchmove.drag", touchmoved, nonpassive)
.on("touchend.drag touchcancel.drag", touchended)
.style("touch-action", "none")
.style("-webkit-tap-highlight-color", "rgba(0,0,0,0)");
}
function mousedowned(event, d) {
if (touchending || !filter.call(this, event, d)) return;
var gesture = beforestart(this, container.call(this, event, d), event, d, "mouse");
if (!gesture) return;
d3Select(event.view)
.on("mousemove.drag", mousemoved, nonpassivecapture)
.on("mouseup.drag", mouseupped, nonpassivecapture);
dragDisable(event.view);
nopropagation$1(event);
mousemoving = false;
mousedownx = event.clientX;
mousedowny = event.clientY;
gesture("start", event);
}
function mousemoved(event) {
noevent$1(event);
if (!mousemoving) {
var dx = event.clientX - mousedownx, dy = event.clientY - mousedowny;
mousemoving = dx * dx + dy * dy > clickDistance2;
}
gestures.mouse("drag", event);
}
function mouseupped(event) {
d3Select(event.view).on("mousemove.drag mouseup.drag", null);
yesdrag(event.view, mousemoving);
noevent$1(event);
gestures.mouse("end", event);
}
function touchstarted(event, d) {
if (!filter.call(this, event, d)) return;
var touches = event.changedTouches,
c = container.call(this, event, d),
n = touches.length, i, gesture;
for (i = 0; i < n; ++i) {
if (gesture = beforestart(this, c, event, d, touches[i].identifier, touches[i])) {
nopropagation$1(event);
gesture("start", event, touches[i]);
}
}
}
function touchmoved(event) {
var touches = event.changedTouches,
n = touches.length, i, gesture;
for (i = 0; i < n; ++i) {
if (gesture = gestures[touches[i].identifier]) {
noevent$1(event);
gesture("drag", event, touches[i]);
}
}
}
function touchended(event) {
var touches = event.changedTouches,
n = touches.length, i, gesture;
if (touchending) clearTimeout(touchending);
touchending = setTimeout(function() { touchending = null; }, 500); // Ghost clicks are delayed!
for (i = 0; i < n; ++i) {
if (gesture = gestures[touches[i].identifier]) {
nopropagation$1(event);
gesture("end", event, touches[i]);
}
}
}
function beforestart(that, container, event, d, identifier, touch) {
var dispatch = listeners.copy(),
p = pointer(touch || event, container), dx, dy,
s;
if ((s = subject.call(that, new DragEvent("beforestart", {
sourceEvent: event,
target: drag,
identifier,
active,
x: p[0],
y: p[1],
dx: 0,
dy: 0,
dispatch
}), d)) == null) return;
dx = s.x - p[0] || 0;
dy = s.y - p[1] || 0;
return function gesture(type, event, touch) {
var p0 = p, n;
switch (type) {
case "start": gestures[identifier] = gesture, n = active++; break;
case "end": delete gestures[identifier], --active; // falls through
case "drag": p = pointer(touch || event, container), n = active; break;
}
dispatch.call(
type,
that,
new DragEvent(type, {
sourceEvent: event,
subject: s,
target: drag,
identifier,
active: n,
x: p[0] + dx,
y: p[1] + dy,
dx: p[0] - p0[0],
dy: p[1] - p0[1],
dispatch
}),
d
);
};
}
drag.filter = function(_) {
return arguments.length ? (filter = typeof _ === "function" ? _ : constant$3(!!_), drag) : filter;
};
drag.container = function(_) {
return arguments.length ? (container = typeof _ === "function" ? _ : constant$3(_), drag) : container;
};
drag.subject = function(_) {
return arguments.length ? (subject = typeof _ === "function" ? _ : constant$3(_), drag) : subject;
};
drag.touchable = function(_) {
return arguments.length ? (touchable = typeof _ === "function" ? _ : constant$3(!!_), drag) : touchable;
};
drag.on = function() {
var value = listeners.on.apply(listeners, arguments);
return value === listeners ? drag : value;
};
drag.clickDistance = function(_) {
return arguments.length ? (clickDistance2 = (_ = +_) * _, drag) : Math.sqrt(clickDistance2);
};
return drag;
}
function define(constructor, factory, prototype) {
constructor.prototype = factory.prototype = prototype;
prototype.constructor = constructor;
}
function extend(parent, definition) {
var prototype = Object.create(parent.prototype);
for (var key in definition) prototype[key] = definition[key];
return prototype;
}
function Color() {}
var darker = 0.7;
var brighter = 1 / darker;
var reI = "\\s*([+-]?\\d+)\\s*",
reN = "\\s*([+-]?(?:\\d*\\.)?\\d+(?:[eE][+-]?\\d+)?)\\s*",
reP = "\\s*([+-]?(?:\\d*\\.)?\\d+(?:[eE][+-]?\\d+)?)%\\s*",
reHex = /^#([0-9a-f]{3,8})$/,
reRgbInteger = new RegExp(`^rgb\\(${reI},${reI},${reI}\\)$`),
reRgbPercent = new RegExp(`^rgb\\(${reP},${reP},${reP}\\)$`),
reRgbaInteger = new RegExp(`^rgba\\(${reI},${reI},${reI},${reN}\\)$`),
reRgbaPercent = new RegExp(`^rgba\\(${reP},${reP},${reP},${reN}\\)$`),
reHslPercent = new RegExp(`^hsl\\(${reN},${reP},${reP}\\)$`),
reHslaPercent = new RegExp(`^hsla\\(${reN},${reP},${reP},${reN}\\)$`);
var named = {
aliceblue: 0xf0f8ff,
antiquewhite: 0xfaebd7,
aqua: 0x00ffff,
aquamarine: 0x7fffd4,
azure: 0xf0ffff,
beige: 0xf5f5dc,
bisque: 0xffe4c4,
black: 0x000000,
blanchedalmond: 0xffebcd,
blue: 0x0000ff,
blueviolet: 0x8a2be2,
brown: 0xa52a2a,
burlywood: 0xdeb887,
cadetblue: 0x5f9ea0,
chartreuse: 0x7fff00,
chocolate: 0xd2691e,
coral: 0xff7f50,
cornflowerblue: 0x6495ed,
cornsilk: 0xfff8dc,
crimson: 0xdc143c,
cyan: 0x00ffff,
darkblue: 0x00008b,
darkcyan: 0x008b8b,
darkgoldenrod: 0xb8860b,
darkgray: 0xa9a9a9,
darkgreen: 0x006400,
darkgrey: 0xa9a9a9,
darkkhaki: 0xbdb76b,
darkmagenta: 0x8b008b,
darkolivegreen: 0x556b2f,
darkorange: 0xff8c00,
darkorchid: 0x9932cc,
darkred: 0x8b0000,
darksalmon: 0xe9967a,
darkseagreen: 0x8fbc8f,
darkslateblue: 0x483d8b,
darkslategray: 0x2f4f4f,
darkslategrey: 0x2f4f4f,
darkturquoise: 0x00ced1,
darkviolet: 0x9400d3,
deeppink: 0xff1493,
deepskyblue: 0x00bfff,
dimgray: 0x696969,
dimgrey: 0x696969,
dodgerblue: 0x1e90ff,
firebrick: 0xb22222,
floralwhite: 0xfffaf0,
forestgreen: 0x228b22,
fuchsia: 0xff00ff,
gainsboro: 0xdcdcdc,
ghostwhite: 0xf8f8ff,
gold: 0xffd700,
goldenrod: 0xdaa520,
gray: 0x808080,
green: 0x008000,
greenyellow: 0xadff2f,
grey: 0x808080,
honeydew: 0xf0fff0,
hotpink: 0xff69b4,
indianred: 0xcd5c5c,
indigo: 0x4b0082,
ivory: 0xfffff0,
khaki: 0xf0e68c,
lavender: 0xe6e6fa,
lavenderblush: 0xfff0f5,
lawngreen: 0x7cfc00,
lemonchiffon: 0xfffacd,
lightblue: 0xadd8e6,
lightcoral: 0xf08080,
lightcyan: 0xe0ffff,
lightgoldenrodyellow: 0xfafad2,
lightgray: 0xd3d3d3,
lightgreen: 0x90ee90,
lightgrey: 0xd3d3d3,
lightpink: 0xffb6c1,
lightsalmon: 0xffa07a,
lightseagreen: 0x20b2aa,
lightskyblue: 0x87cefa,
lightslategray: 0x778899,
lightslategrey: 0x778899,
lightsteelblue: 0xb0c4de,
lightyellow: 0xffffe0,
lime: 0x00ff00,
limegreen: 0x32cd32,
linen: 0xfaf0e6,
magenta: 0xff00ff,
maroon: 0x800000,
mediumaquamarine: 0x66cdaa,
mediumblue: 0x0000cd,
mediumorchid: 0xba55d3,
mediumpurple: 0x9370db,
mediumseagreen: 0x3cb371,
mediumslateblue: 0x7b68ee,
mediumspringgreen: 0x00fa9a,
mediumturquoise: 0x48d1cc,
mediumvioletred: 0xc71585,
midnightblue: 0x191970,
mintcream: 0xf5fffa,
mistyrose: 0xffe4e1,
moccasin: 0xffe4b5,
navajowhite: 0xffdead,
navy: 0x000080,
oldlace: 0xfdf5e6,
olive: 0x808000,
olivedrab: 0x6b8e23,
orange: 0xffa500,
orangered: 0xff4500,
orchid: 0xda70d6,
palegoldenrod: 0xeee8aa,
palegreen: 0x98fb98,
paleturquoise: 0xafeeee,
palevioletred: 0xdb7093,
papayawhip: 0xffefd5,
peachpuff: 0xffdab9,
peru: 0xcd853f,
pink: 0xffc0cb,
plum: 0xdda0dd,
powderblue: 0xb0e0e6,
purple: 0x800080,
rebeccapurple: 0x663399,
red: 0xff0000,
rosybrown: 0xbc8f8f,
royalblue: 0x4169e1,
saddlebrown: 0x8b4513,
salmon: 0xfa8072,
sandybrown: 0xf4a460,
seagreen: 0x2e8b57,
seashell: 0xfff5ee,
sienna: 0xa0522d,
silver: 0xc0c0c0,
skyblue: 0x87ceeb,
slateblue: 0x6a5acd,
slategray: 0x708090,
slategrey: 0x708090,
snow: 0xfffafa,
springgreen: 0x00ff7f,
steelblue: 0x4682b4,
tan: 0xd2b48c,
teal: 0x008080,
thistle: 0xd8bfd8,
tomato: 0xff6347,
turquoise: 0x40e0d0,
violet: 0xee82ee,
wheat: 0xf5deb3,
white: 0xffffff,
whitesmoke: 0xf5f5f5,
yellow: 0xffff00,
yellowgreen: 0x9acd32
};
define(Color, color, {
copy(channels) {
return Object.assign(new this.constructor, this, channels);
},
displayable() {
return this.rgb().displayable();
},
hex: color_formatHex, // Deprecated! Use color.formatHex.
formatHex: color_formatHex,
formatHex8: color_formatHex8,
formatHsl: color_formatHsl,
formatRgb: color_formatRgb,
toString: color_formatRgb
});
function color_formatHex() {
return this.rgb().formatHex();
}
function color_formatHex8() {
return this.rgb().formatHex8();
}
function color_formatHsl() {
return hslConvert(this).formatHsl();
}
function color_formatRgb() {
return this.rgb().formatRgb();
}
function color(format) {
var m, l;
format = (format + "").trim().toLowerCase();
return (m = reHex.exec(format)) ? (l = m[1].length, m = parseInt(m[1], 16), l === 6 ? rgbn(m) // #ff0000
: l === 3 ? new Rgb((m >> 8 & 0xf) | (m >> 4 & 0xf0), (m >> 4 & 0xf) | (m & 0xf0), ((m & 0xf) << 4) | (m & 0xf), 1) // #f00
: l === 8 ? rgba(m >> 24 & 0xff, m >> 16 & 0xff, m >> 8 & 0xff, (m & 0xff) / 0xff) // #ff000000
: l === 4 ? rgba((m >> 12 & 0xf) | (m >> 8 & 0xf0), (m >> 8 & 0xf) | (m >> 4 & 0xf0), (m >> 4 & 0xf) | (m & 0xf0), (((m & 0xf) << 4) | (m & 0xf)) / 0xff) // #f000
: null) // invalid hex
: (m = reRgbInteger.exec(format)) ? new Rgb(m[1], m[2], m[3], 1) // rgb(255, 0, 0)
: (m = reRgbPercent.exec(format)) ? new Rgb(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, 1) // rgb(100%, 0%, 0%)
: (m = reRgbaInteger.exec(format)) ? rgba(m[1], m[2], m[3], m[4]) // rgba(255, 0, 0, 1)
: (m = reRgbaPercent.exec(format)) ? rgba(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, m[4]) // rgb(100%, 0%, 0%, 1)
: (m = reHslPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, 1) // hsl(120, 50%, 50%)
: (m = reHslaPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, m[4]) // hsla(120, 50%, 50%, 1)
: named.hasOwnProperty(format) ? rgbn(named[format]) // eslint-disable-line no-prototype-builtins
: format === "transparent" ? new Rgb(NaN, NaN, NaN, 0)
: null;
}
function rgbn(n) {
return new Rgb(n >> 16 & 0xff, n >> 8 & 0xff, n & 0xff, 1);
}
function rgba(r, g, b, a) {
if (a <= 0) r = g = b = NaN;
return new Rgb(r, g, b, a);
}
function rgbConvert(o) {
if (!(o instanceof Color)) o = color(o);
if (!o) return new Rgb;
o = o.rgb();
return new Rgb(o.r, o.g, o.b, o.opacity);
}
function rgb(r, g, b, opacity) {
return arguments.length === 1 ? rgbConvert(r) : new Rgb(r, g, b, opacity == null ? 1 : opacity);
}
function Rgb(r, g, b, opacity) {
this.r = +r;
this.g = +g;
this.b = +b;
this.opacity = +opacity;
}
define(Rgb, rgb, extend(Color, {
brighter(k) {
k = k == null ? brighter : Math.pow(brighter, k);
return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);
},
darker(k) {
k = k == null ? darker : Math.pow(darker, k);
return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);
},
rgb() {
return this;
},
clamp() {
return new Rgb(clampi(this.r), clampi(this.g), clampi(this.b), clampa(this.opacity));
},
displayable() {
return (-0.5 <= this.r && this.r < 255.5)
&& (-0.5 <= this.g && this.g < 255.5)
&& (-0.5 <= this.b && this.b < 255.5)
&& (0 <= this.opacity && this.opacity <= 1);
},
hex: rgb_formatHex, // Deprecated! Use color.formatHex.
formatHex: rgb_formatHex,
formatHex8: rgb_formatHex8,
formatRgb: rgb_formatRgb,
toString: rgb_formatRgb
}));
function rgb_formatHex() {
return `#${hex(this.r)}${hex(this.g)}${hex(this.b)}`;
}
function rgb_formatHex8() {
return `#${hex(this.r)}${hex(this.g)}${hex(this.b)}${hex((isNaN(this.opacity) ? 1 : this.opacity) * 255)}`;
}
function rgb_formatRgb() {
const a = clampa(this.opacity);
return `${a === 1 ? "rgb(" : "rgba("}${clampi(this.r)}, ${clampi(this.g)}, ${clampi(this.b)}${a === 1 ? ")" : `, ${a})`}`;
}
function clampa(opacity) {
return isNaN(opacity) ? 1 : Math.max(0, Math.min(1, opacity));
}
function clampi(value) {
return Math.max(0, Math.min(255, Math.round(value) || 0));
}
function hex(value) {
value = clampi(value);
return (value < 16 ? "0" : "") + value.toString(16);
}
function hsla(h, s, l, a) {
if (a <= 0) h = s = l = NaN;
else if (l <= 0 || l >= 1) h = s = NaN;
else if (s <= 0) h = NaN;
return new Hsl(h, s, l, a);
}
function hslConvert(o) {
if (o instanceof Hsl) return new Hsl(o.h, o.s, o.l, o.opacity);
if (!(o instanceof Color)) o = color(o);
if (!o) return new Hsl;
if (o instanceof Hsl) return o;
o = o.rgb();
var r = o.r / 255,
g = o.g / 255,
b = o.b / 255,
min = Math.min(r, g, b),
max = Math.max(r, g, b),
h = NaN,
s = max - min,
l = (max + min) / 2;
if (s) {
if (r === max) h = (g - b) / s + (g < b) * 6;
else if (g === max) h = (b - r) / s + 2;
else h = (r - g) / s + 4;
s /= l < 0.5 ? max + min : 2 - max - min;
h *= 60;
} else {
s = l > 0 && l < 1 ? 0 : h;
}
return new Hsl(h, s, l, o.opacity);
}
function hsl(h, s, l, opacity) {
return arguments.length === 1 ? hslConvert(h) : new Hsl(h, s, l, opacity == null ? 1 : opacity);
}
function Hsl(h, s, l, opacity) {
this.h = +h;
this.s = +s;
this.l = +l;
this.opacity = +opacity;
}
define(Hsl, hsl, extend(Color, {
brighter(k) {
k = k == null ? brighter : Math.pow(brighter, k);
return new Hsl(this.h, this.s, this.l * k, this.opacity);
},
darker(k) {
k = k == null ? darker : Math.pow(darker, k);
return new Hsl(this.h, this.s, this.l * k, this.opacity);
},
rgb() {
var h = this.h % 360 + (this.h < 0) * 360,
s = isNaN(h) || isNaN(this.s) ? 0 : this.s,
l = this.l,
m2 = l + (l < 0.5 ? l : 1 - l) * s,
m1 = 2 * l - m2;
return new Rgb(
hsl2rgb(h >= 240 ? h - 240 : h + 120, m1, m2),
hsl2rgb(h, m1, m2),
hsl2rgb(h < 120 ? h + 240 : h - 120, m1, m2),
this.opacity
);
},
clamp() {
return new Hsl(clamph(this.h), clampt(this.s), clampt(this.l), clampa(this.opacity));
},
displayable() {
return (0 <= this.s && this.s <= 1 || isNaN(this.s))
&& (0 <= this.l && this.l <= 1)
&& (0 <= this.opacity && this.opacity <= 1);
},
formatHsl() {
const a = clampa(this.opacity);
return `${a === 1 ? "hsl(" : "hsla("}${clamph(this.h)}, ${clampt(this.s) * 100}%, ${clampt(this.l) * 100}%${a === 1 ? ")" : `, ${a})`}`;
}
}));
function clamph(value) {
value = (value || 0) % 360;
return value < 0 ? value + 360 : value;
}
function clampt(value) {
return Math.max(0, Math.min(1, value || 0));
}
/* From FvD 13.37, CSS Color Module Level 3 */
function hsl2rgb(h, m1, m2) {
return (h < 60 ? m1 + (m2 - m1) * h / 60
: h < 180 ? m2
: h < 240 ? m1 + (m2 - m1) * (240 - h) / 60
: m1) * 255;
}
var constant$2 = x => () => x;
function linear(a, d) {
return function(t) {
return a + t * d;
};
}
function exponential(a, b, y) {
return a = Math.pow(a, y), b = Math.pow(b, y) - a, y = 1 / y, function(t) {
return Math.pow(a + t * b, y);
};
}
function gamma(y) {
return (y = +y) === 1 ? nogamma : function(a, b) {
return b - a ? exponential(a, b, y) : constant$2(isNaN(a) ? b : a);
};
}
function nogamma(a, b) {
var d = b - a;
return d ? linear(a, d) : constant$2(isNaN(a) ? b : a);
}
var interpolateRgb = (function rgbGamma(y) {
var color = gamma(y);
function rgb$1(start, end) {
var r = color((start = rgb(start)).r, (end = rgb(end)).r),
g = color(start.g, end.g),
b = color(start.b, end.b),
opacity = nogamma(start.opacity, end.opacity);
return function(t) {
start.r = r(t);
start.g = g(t);
start.b = b(t);
start.opacity = opacity(t);
return start + "";
};
}
rgb$1.gamma = rgbGamma;
return rgb$1;
})(1);
function interpolateNumber(a, b) {
return a = +a, b = +b, function(t) {
return a * (1 - t) + b * t;
};
}
var reA = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g,
reB = new RegExp(reA.source, "g");
function zero(b) {
return function() {
return b;
};
}
function one(b) {
return function(t) {
return b(t) + "";
};
}
function interpolateString(a, b) {
var bi = reA.lastIndex = reB.lastIndex = 0, // scan index for next number in b
am, // current match in a
bm, // current match in b
bs, // string preceding current number in b, if any
i = -1, // index in s
s = [], // string constants and placeholders
q = []; // number interpolators
// Coerce inputs to strings.
a = a + "", b = b + "";
// Interpolate pairs of numbers in a & b.
while ((am = reA.exec(a))
&& (bm = reB.exec(b))) {
if ((bs = bm.index) > bi) { // a string precedes the next number in b
bs = b.slice(bi, bs);
if (s[i]) s[i] += bs; // coalesce with previous string
else s[++i] = bs;
}
if ((am = am[0]) === (bm = bm[0])) { // numbers in a & b match
if (s[i]) s[i] += bm; // coalesce with previous string
else s[++i] = bm;
} else { // interpolate non-matching numbers
s[++i] = null;
q.push({i: i, x: interpolateNumber(am, bm)});
}
bi = reB.lastIndex;
}
// Add remains of b.
if (bi < b.length) {
bs = b.slice(bi);
if (s[i]) s[i] += bs; // coalesce with previous string
else s[++i] = bs;
}
// Special optimization for only a single match.
// Otherwise, interpolate each of the numbers and rejoin the string.
return s.length < 2 ? (q[0]
? one(q[0].x)
: zero(b))
: (b = q.length, function(t) {
for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t);
return s.join("");
});
}
var degrees = 180 / Math.PI;
var identity$1 = {
translateX: 0,
translateY: 0,
rotate: 0,
skewX: 0,
scaleX: 1,
scaleY: 1
};
function decompose(a, b, c, d, e, f) {
var scaleX, scaleY, skewX;
if (scaleX = Math.sqrt(a * a + b * b)) a /= scaleX, b /= scaleX;
if (skewX = a * c + b * d) c -= a * skewX, d -= b * skewX;
if (scaleY = Math.sqrt(c * c + d * d)) c /= scaleY, d /= scaleY, skewX /= scaleY;
if (a * d < b * c) a = -a, b = -b, skewX = -skewX, scaleX = -scaleX;
return {
translateX: e,
translateY: f,
rotate: Math.atan2(b, a) * degrees,
skewX: Math.atan(skewX) * degrees,
scaleX: scaleX,
scaleY: scaleY
};
}
var svgNode;
/* eslint-disable no-undef */
function parseCss(value) {
const m = new (typeof DOMMatrix === "function" ? DOMMatrix : WebKitCSSMatrix)(value + "");
return m.isIdentity ? identity$1 : decompose(m.a, m.b, m.c, m.d, m.e, m.f);
}
function parseSvg(value) {
if (value == null) return identity$1;
if (!svgNode) svgNode = document.createElementNS("http://www.w3.org/2000/svg", "g");
svgNode.setAttribute("transform", value);
if (!(value = svgNode.transform.baseVal.consolidate())) return identity$1;
value = value.matrix;
return decompose(value.a, value.b, value.c, value.d, value.e, value.f);
}
function interpolateTransform(parse, pxComma, pxParen, degParen) {
function pop(s) {
return s.length ? s.pop() + " " : "";
}
function translate(xa, ya, xb, yb, s, q) {
if (xa !== xb || ya !== yb) {
var i = s.push("translate(", null, pxComma, null, pxParen);
q.push({i: i - 4, x: interpolateNumber(xa, xb)}, {i: i - 2, x: interpolateNumber(ya, yb)});
} else if (xb || yb) {
s.push("translate(" + xb + pxComma + yb + pxParen);
}
}
function rotate(a, b, s, q) {
if (a !== b) {
if (a - b > 180) b += 360; else if (b - a > 180) a += 360; // shortest path
q.push({i: s.push(pop(s) + "rotate(", null, degParen) - 2, x: interpolateNumber(a, b)});
} else if (b) {
s.push(pop(s) + "rotate(" + b + degParen);
}
}
function skewX(a, b, s, q) {
if (a !== b) {
q.push({i: s.push(pop(s) + "skewX(", null, degParen) - 2, x: interpolateNumber(a, b)});
} else if (b) {
s.push(pop(s) + "skewX(" + b + degParen);
}
}
function scale(xa, ya, xb, yb, s, q) {
if (xa !== xb || ya !== yb) {
var i = s.push(pop(s) + "scale(", null, ",", null, ")");
q.push({i: i - 4, x: interpolateNumber(xa, xb)}, {i: i - 2, x: interpolateNumber(ya, yb)});
} else if (xb !== 1 || yb !== 1) {
s.push(pop(s) + "scale(" + xb + "," + yb + ")");
}
}
return function(a, b) {
var s = [], // string constants and placeholders
q = []; // number interpolators
a = parse(a), b = parse(b);
translate(a.translateX, a.translateY, b.translateX, b.translateY, s, q);
rotate(a.rotate, b.rotate, s, q);
skewX(a.skewX, b.skewX, s, q);
scale(a.scaleX, a.scaleY, b.scaleX, b.scaleY, s, q);
a = b = null; // gc
return function(t) {
var i = -1, n = q.length, o;
while (++i < n) s[(o = q[i]).i] = o.x(t);
return s.join("");
};
};
}
var interpolateTransformCss = interpolateTransform(parseCss, "px, ", "px)", "deg)");
var interpolateTransformSvg = interpolateTransform(parseSvg, ", ", ")", ")");
var epsilon2 = 1e-12;
function cosh(x) {
return ((x = Math.exp(x)) + 1 / x) / 2;
}
function sinh(x) {
return ((x = Math.exp(x)) - 1 / x) / 2;
}
function tanh(x) {
return ((x = Math.exp(2 * x)) - 1) / (x + 1);
}
var interpolateZoom = (function zoomRho(rho, rho2, rho4) {
// p0 = [ux0, uy0, w0]
// p1 = [ux1, uy1, w1]
function zoom(p0, p1) {
var ux0 = p0[0], uy0 = p0[1], w0 = p0[2],
ux1 = p1[0], uy1 = p1[1], w1 = p1[2],
dx = ux1 - ux0,
dy = uy1 - uy0,
d2 = dx * dx + dy * dy,
i,
S;
// Special case for u0 ≅ u1.
if (d2 < epsilon2) {
S = Math.log(w1 / w0) / rho;
i = function(t) {
return [
ux0 + t * dx,
uy0 + t * dy,
w0 * Math.exp(rho * t * S)
];
};
}
// General case.
else {
var d1 = Math.sqrt(d2),
b0 = (w1 * w1 - w0 * w0 + rho4 * d2) / (2 * w0 * rho2 * d1),
b1 = (w1 * w1 - w0 * w0 - rho4 * d2) / (2 * w1 * rho2 * d1),
r0 = Math.log(Math.sqrt(b0 * b0 + 1) - b0),
r1 = Math.log(Math.sqrt(b1 * b1 + 1) - b1);
S = (r1 - r0) / rho;
i = function(t) {
var s = t * S,
coshr0 = cosh(r0),
u = w0 / (rho2 * d1) * (coshr0 * tanh(rho * s + r0) - sinh(r0));
return [
ux0 + u * dx,
uy0 + u * dy,
w0 * coshr0 / cosh(rho * s + r0)
];
};
}
i.duration = S * 1000 * rho / Math.SQRT2;
return i;
}
zoom.rho = function(_) {
var _1 = Math.max(1e-3, +_), _2 = _1 * _1, _4 = _2 * _2;
return zoomRho(_1, _2, _4);
};
return zoom;
})(Math.SQRT2, 2, 4);
var frame = 0, // is an animation frame pending?
timeout$1 = 0, // is a timeout pending?
interval = 0, // are any timers active?
pokeDelay = 1000, // how frequently we check for clock skew
taskHead,
taskTail,
clockLast = 0,
clockNow = 0,
clockSkew = 0,
clock = typeof performance === "object" && performance.now ? performance : Date,
setFrame = typeof window === "object" && window.requestAnimationFrame ? window.requestAnimationFrame.bind(window) : function(f) { setTimeout(f, 17); };
function now$2() {
return clockNow || (setFrame(clearNow), clockNow = clock.now() + clockSkew);
}
function clearNow() {
clockNow = 0;
}
function Timer() {
this._call =
this._time =
this._next = null;
}
Timer.prototype = timer.prototype = {
constructor: Timer,
restart: function(callback, delay, time) {
if (typeof callback !== "function") throw new TypeError("callback is not a function");
time = (time == null ? now$2() : +time) + (delay == null ? 0 : +delay);
if (!this._next && taskTail !== this) {
if (taskTail) taskTail._next = this;
else taskHead = this;
taskTail = this;
}
this._call = callback;
this._time = time;
sleep();
},
stop: function() {
if (this._call) {
this._call = null;
this._time = Infinity;
sleep();
}
}
};
function timer(callback, delay, time) {
var t = new Timer;
t.restart(callback, delay, time);
return t;
}
function timerFlush() {
now$2(); // Get the current time, if not already set.
++frame; // Pretend weve set an alarm, if we havent already.
var t = taskHead, e;
while (t) {
if ((e = clockNow - t._time) >= 0) t._call.call(undefined, e);
t = t._next;
}
--frame;
}
function wake() {
clockNow = (clockLast = clock.now()) + clockSkew;
frame = timeout$1 = 0;
try {
timerFlush();
} finally {
frame = 0;
nap();
clockNow = 0;
}
}
function poke() {
var now = clock.now(), delay = now - clockLast;
if (delay > pokeDelay) clockSkew -= delay, clockLast = now;
}
function nap() {
var t0, t1 = taskHead, t2, time = Infinity;
while (t1) {
if (t1._call) {
if (time > t1._time) time = t1._time;
t0 = t1, t1 = t1._next;
} else {
t2 = t1._next, t1._next = null;
t1 = t0 ? t0._next = t2 : taskHead = t2;
}
}
taskTail = t0;
sleep(time);
}
function sleep(time) {
if (frame) return; // Soonest alarm already set, or will be.
if (timeout$1) timeout$1 = clearTimeout(timeout$1);
var delay = time - clockNow; // Strictly less than if we recomputed clockNow.
if (delay > 24) {
if (time < Infinity) timeout$1 = setTimeout(wake, time - clock.now() - clockSkew);
if (interval) interval = clearInterval(interval);
} else {
if (!interval) clockLast = clock.now(), interval = setInterval(poke, pokeDelay);
frame = 1, setFrame(wake);
}
}
function timeout(callback, delay, time) {
var t = new Timer;
delay = delay == null ? 0 : +delay;
t.restart(elapsed => {
t.stop();
callback(elapsed + delay);
}, delay, time);
return t;
}
var emptyOn = dispatch("start", "end", "cancel", "interrupt");
var emptyTween = [];
var CREATED = 0;
var SCHEDULED = 1;
var STARTING = 2;
var STARTED = 3;
var RUNNING = 4;
var ENDING = 5;
var ENDED = 6;
function schedule(node, name, id, index, group, timing) {
var schedules = node.__transition;
if (!schedules) node.__transition = {};
else if (id in schedules) return;
create(node, id, {
name: name,
index: index, // For context during callback.
group: group, // For context during callback.
on: emptyOn,
tween: emptyTween,
time: timing.time,
delay: timing.delay,
duration: timing.duration,
ease: timing.ease,
timer: null,
state: CREATED
});
}
function init(node, id) {
var schedule = get(node, id);
if (schedule.state > CREATED) throw new Error("too late; already scheduled");
return schedule;
}
function set(node, id) {
var schedule = get(node, id);
if (schedule.state > STARTED) throw new Error("too late; already running");
return schedule;
}
function get(node, id) {
var schedule = node.__transition;
if (!schedule || !(schedule = schedule[id])) throw new Error("transition not found");
return schedule;
}
function create(node, id, self) {
var schedules = node.__transition,
tween;
// Initialize the self timer when the transition is created.
// Note the actual delay is not known until the first callback!
schedules[id] = self;
self.timer = timer(schedule, 0, self.time);
function schedule(elapsed) {
self.state = SCHEDULED;
self.timer.restart(start, self.delay, self.time);
// If the elapsed delay is less than our first sleep, start immediately.
if (self.delay <= elapsed) start(elapsed - self.delay);
}
function start(elapsed) {
var i, j, n, o;
// If the state is not SCHEDULED, then we previously errored on start.
if (self.state !== SCHEDULED) return stop();
for (i in schedules) {
o = schedules[i];
if (o.name !== self.name) continue;
// While this element already has a starting transition during this frame,
// defer starting an interrupting transition until that transition has a
// chance to tick (and possibly end); see d3/d3-transition#54!
if (o.state === STARTED) return timeout(start);
// Interrupt the active transition, if any.
if (o.state === RUNNING) {
o.state = ENDED;
o.timer.stop();
o.on.call("interrupt", node, node.__data__, o.index, o.group);
delete schedules[i];
}
// Cancel any pre-empted transitions.
else if (+i < id) {
o.state = ENDED;
o.timer.stop();
o.on.call("cancel", node, node.__data__, o.index, o.group);
delete schedules[i];
}
}
// Defer the first tick to end of the current frame; see d3/d3#1576.
// Note the transition may be canceled after start and before the first tick!
// Note this must be scheduled before the start event; see d3/d3-transition#16!
// Assuming this is successful, subsequent callbacks go straight to tick.
timeout(function() {
if (self.state === STARTED) {
self.state = RUNNING;
self.timer.restart(tick, self.delay, self.time);
tick(elapsed);
}
});
// Dispatch the start event.
// Note this must be done before the tween are initialized.
self.state = STARTING;
self.on.call("start", node, node.__data__, self.index, self.group);
if (self.state !== STARTING) return; // interrupted
self.state = STARTED;
// Initialize the tween, deleting null tween.
tween = new Array(n = self.tween.length);
for (i = 0, j = -1; i < n; ++i) {
if (o = self.tween[i].value.call(node, node.__data__, self.index, self.group)) {
tween[++j] = o;
}
}
tween.length = j + 1;
}
function tick(elapsed) {
var t = elapsed < self.duration ? self.ease.call(null, elapsed / self.duration) : (self.timer.restart(stop), self.state = ENDING, 1),
i = -1,
n = tween.length;
while (++i < n) {
tween[i].call(node, t);
}
// Dispatch the end event.
if (self.state === ENDING) {
self.on.call("end", node, node.__data__, self.index, self.group);
stop();
}
}
function stop() {
self.state = ENDED;
self.timer.stop();
delete schedules[id];
for (var i in schedules) return; // eslint-disable-line no-unused-vars
delete node.__transition;
}
}
function interrupt(node, name) {
var schedules = node.__transition,
schedule,
active,
empty = true,
i;
if (!schedules) return;
name = name == null ? null : name + "";
for (i in schedules) {
if ((schedule = schedules[i]).name !== name) { empty = false; continue; }
active = schedule.state > STARTING && schedule.state < ENDING;
schedule.state = ENDED;
schedule.timer.stop();
schedule.on.call(active ? "interrupt" : "cancel", node, node.__data__, schedule.index, schedule.group);
delete schedules[i];
}
if (empty) delete node.__transition;
}
function selection_interrupt(name) {
return this.each(function() {
interrupt(this, name);
});
}
function tweenRemove(id, name) {
var tween0, tween1;
return function() {
var schedule = set(this, id),
tween = schedule.tween;
// If this node shared tween with the previous node,
// just assign the updated shared tween and were done!
// Otherwise, copy-on-write.
if (tween !== tween0) {
tween1 = tween0 = tween;
for (var i = 0, n = tween1.length; i < n; ++i) {
if (tween1[i].name === name) {
tween1 = tween1.slice();
tween1.splice(i, 1);
break;
}
}
}
schedule.tween = tween1;
};
}
function tweenFunction(id, name, value) {
var tween0, tween1;
if (typeof value !== "function") throw new Error;
return function() {
var schedule = set(this, id),
tween = schedule.tween;
// If this node shared tween with the previous node,
// just assign the updated shared tween and were done!
// Otherwise, copy-on-write.
if (tween !== tween0) {
tween1 = (tween0 = tween).slice();
for (var t = {name: name, value: value}, i = 0, n = tween1.length; i < n; ++i) {
if (tween1[i].name === name) {
tween1[i] = t;
break;
}
}
if (i === n) tween1.push(t);
}
schedule.tween = tween1;
};
}
function transition_tween(name, value) {
var id = this._id;
name += "";
if (arguments.length < 2) {
var tween = get(this.node(), id).tween;
for (var i = 0, n = tween.length, t; i < n; ++i) {
if ((t = tween[i]).name === name) {
return t.value;
}
}
return null;
}
return this.each((value == null ? tweenRemove : tweenFunction)(id, name, value));
}
function tweenValue(transition, name, value) {
var id = transition._id;
transition.each(function() {
var schedule = set(this, id);
(schedule.value || (schedule.value = {}))[name] = value.apply(this, arguments);
});
return function(node) {
return get(node, id).value[name];
};
}
function interpolate(a, b) {
var c;
return (typeof b === "number" ? interpolateNumber
: b instanceof color ? interpolateRgb
: (c = color(b)) ? (b = c, interpolateRgb)
: interpolateString)(a, b);
}
function attrRemove(name) {
return function() {
this.removeAttribute(name);
};
}
function attrRemoveNS(fullname) {
return function() {
this.removeAttributeNS(fullname.space, fullname.local);
};
}
function attrConstant(name, interpolate, value1) {
var string00,
string1 = value1 + "",
interpolate0;
return function() {
var string0 = this.getAttribute(name);
return string0 === string1 ? null
: string0 === string00 ? interpolate0
: interpolate0 = interpolate(string00 = string0, value1);
};
}
function attrConstantNS(fullname, interpolate, value1) {
var string00,
string1 = value1 + "",
interpolate0;
return function() {
var string0 = this.getAttributeNS(fullname.space, fullname.local);
return string0 === string1 ? null
: string0 === string00 ? interpolate0
: interpolate0 = interpolate(string00 = string0, value1);
};
}
function attrFunction(name, interpolate, value) {
var string00,
string10,
interpolate0;
return function() {
var string0, value1 = value(this), string1;
if (value1 == null) return void this.removeAttribute(name);
string0 = this.getAttribute(name);
string1 = value1 + "";
return string0 === string1 ? null
: string0 === string00 && string1 === string10 ? interpolate0
: (string10 = string1, interpolate0 = interpolate(string00 = string0, value1));
};
}
function attrFunctionNS(fullname, interpolate, value) {
var string00,
string10,
interpolate0;
return function() {
var string0, value1 = value(this), string1;
if (value1 == null) return void this.removeAttributeNS(fullname.space, fullname.local);
string0 = this.getAttributeNS(fullname.space, fullname.local);
string1 = value1 + "";
return string0 === string1 ? null
: string0 === string00 && string1 === string10 ? interpolate0
: (string10 = string1, interpolate0 = interpolate(string00 = string0, value1));
};
}
function transition_attr(name, value) {
var fullname = namespace(name), i = fullname === "transform" ? interpolateTransformSvg : interpolate;
return this.attrTween(name, typeof value === "function"
? (fullname.local ? attrFunctionNS : attrFunction)(fullname, i, tweenValue(this, "attr." + name, value))
: value == null ? (fullname.local ? attrRemoveNS : attrRemove)(fullname)
: (fullname.local ? attrConstantNS : attrConstant)(fullname, i, value));
}
function attrInterpolate(name, i) {
return function(t) {
this.setAttribute(name, i.call(this, t));
};
}
function attrInterpolateNS(fullname, i) {
return function(t) {
this.setAttributeNS(fullname.space, fullname.local, i.call(this, t));
};
}
function attrTweenNS(fullname, value) {
var t0, i0;
function tween() {
var i = value.apply(this, arguments);
if (i !== i0) t0 = (i0 = i) && attrInterpolateNS(fullname, i);
return t0;
}
tween._value = value;
return tween;
}
function attrTween(name, value) {
var t0, i0;
function tween() {
var i = value.apply(this, arguments);
if (i !== i0) t0 = (i0 = i) && attrInterpolate(name, i);
return t0;
}
tween._value = value;
return tween;
}
function transition_attrTween(name, value) {
var key = "attr." + name;
if (arguments.length < 2) return (key = this.tween(key)) && key._value;
if (value == null) return this.tween(key, null);
if (typeof value !== "function") throw new Error;
var fullname = namespace(name);
return this.tween(key, (fullname.local ? attrTweenNS : attrTween)(fullname, value));
}
function delayFunction(id, value) {
return function() {
init(this, id).delay = +value.apply(this, arguments);
};
}
function delayConstant(id, value) {
return value = +value, function() {
init(this, id).delay = value;
};
}
function transition_delay(value) {
var id = this._id;
return arguments.length
? this.each((typeof value === "function"
? delayFunction
: delayConstant)(id, value))
: get(this.node(), id).delay;
}
function durationFunction(id, value) {
return function() {
set(this, id).duration = +value.apply(this, arguments);
};
}
function durationConstant(id, value) {
return value = +value, function() {
set(this, id).duration = value;
};
}
function transition_duration(value) {
var id = this._id;
return arguments.length
? this.each((typeof value === "function"
? durationFunction
: durationConstant)(id, value))
: get(this.node(), id).duration;
}
function easeConstant(id, value) {
if (typeof value !== "function") throw new Error;
return function() {
set(this, id).ease = value;
};
}
function transition_ease(value) {
var id = this._id;
return arguments.length
? this.each(easeConstant(id, value))
: get(this.node(), id).ease;
}
function easeVarying(id, value) {
return function() {
var v = value.apply(this, arguments);
if (typeof v !== "function") throw new Error;
set(this, id).ease = v;
};
}
function transition_easeVarying(value) {
if (typeof value !== "function") throw new Error;
return this.each(easeVarying(this._id, value));
}
function transition_filter(match) {
if (typeof match !== "function") match = matcher(match);
for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) {
if ((node = group[i]) && match.call(node, node.__data__, i, group)) {
subgroup.push(node);
}
}
}
return new Transition(subgroups, this._parents, this._name, this._id);
}
function transition_merge(transition) {
if (transition._id !== this._id) throw new Error;
for (var groups0 = this._groups, groups1 = transition._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) {
for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) {
if (node = group0[i] || group1[i]) {
merge[i] = node;
}
}
}
for (; j < m0; ++j) {
merges[j] = groups0[j];
}
return new Transition(merges, this._parents, this._name, this._id);
}
function start(name) {
return (name + "").trim().split(/^|\s+/).every(function(t) {
var i = t.indexOf(".");
if (i >= 0) t = t.slice(0, i);
return !t || t === "start";
});
}
function onFunction(id, name, listener) {
var on0, on1, sit = start(name) ? init : set;
return function() {
var schedule = sit(this, id),
on = schedule.on;
// If this node shared a dispatch with the previous node,
// just assign the updated shared dispatch and were done!
// Otherwise, copy-on-write.
if (on !== on0) (on1 = (on0 = on).copy()).on(name, listener);
schedule.on = on1;
};
}
function transition_on(name, listener) {
var id = this._id;
return arguments.length < 2
? get(this.node(), id).on.on(name)
: this.each(onFunction(id, name, listener));
}
function removeFunction(id) {
return function() {
var parent = this.parentNode;
for (var i in this.__transition) if (+i !== id) return;
if (parent) parent.removeChild(this);
};
}
function transition_remove() {
return this.on("end.remove", removeFunction(this._id));
}
function transition_select(select) {
var name = this._name,
id = this._id;
if (typeof select !== "function") select = selector(select);
for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) {
if ((node = group[i]) && (subnode = select.call(node, node.__data__, i, group))) {
if ("__data__" in node) subnode.__data__ = node.__data__;
subgroup[i] = subnode;
schedule(subgroup[i], name, id, i, subgroup, get(node, id));
}
}
}
return new Transition(subgroups, this._parents, name, id);
}
function transition_selectAll(select) {
var name = this._name,
id = this._id;
if (typeof select !== "function") select = selectorAll(select);
for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {
if (node = group[i]) {
for (var children = select.call(node, node.__data__, i, group), child, inherit = get(node, id), k = 0, l = children.length; k < l; ++k) {
if (child = children[k]) {
schedule(child, name, id, k, children, inherit);
}
}
subgroups.push(children);
parents.push(node);
}
}
}
return new Transition(subgroups, parents, name, id);
}
var Selection = selection.prototype.constructor;
function transition_selection() {
return new Selection(this._groups, this._parents);
}
function styleNull(name, interpolate) {
var string00,
string10,
interpolate0;
return function() {
var string0 = styleValue(this, name),
string1 = (this.style.removeProperty(name), styleValue(this, name));
return string0 === string1 ? null
: string0 === string00 && string1 === string10 ? interpolate0
: interpolate0 = interpolate(string00 = string0, string10 = string1);
};
}
function styleRemove(name) {
return function() {
this.style.removeProperty(name);
};
}
function styleConstant(name, interpolate, value1) {
var string00,
string1 = value1 + "",
interpolate0;
return function() {
var string0 = styleValue(this, name);
return string0 === string1 ? null
: string0 === string00 ? interpolate0
: interpolate0 = interpolate(string00 = string0, value1);
};
}
function styleFunction(name, interpolate, value) {
var string00,
string10,
interpolate0;
return function() {
var string0 = styleValue(this, name),
value1 = value(this),
string1 = value1 + "";
if (value1 == null) string1 = value1 = (this.style.removeProperty(name), styleValue(this, name));
return string0 === string1 ? null
: string0 === string00 && string1 === string10 ? interpolate0
: (string10 = string1, interpolate0 = interpolate(string00 = string0, value1));
};
}
function styleMaybeRemove(id, name) {
var on0, on1, listener0, key = "style." + name, event = "end." + key, remove;
return function() {
var schedule = set(this, id),
on = schedule.on,
listener = schedule.value[key] == null ? remove || (remove = styleRemove(name)) : undefined;
// If this node shared a dispatch with the previous node,
// just assign the updated shared dispatch and were done!
// Otherwise, copy-on-write.
if (on !== on0 || listener0 !== listener) (on1 = (on0 = on).copy()).on(event, listener0 = listener);
schedule.on = on1;
};
}
function transition_style(name, value, priority) {
var i = (name += "") === "transform" ? interpolateTransformCss : interpolate;
return value == null ? this
.styleTween(name, styleNull(name, i))
.on("end.style." + name, styleRemove(name))
: typeof value === "function" ? this
.styleTween(name, styleFunction(name, i, tweenValue(this, "style." + name, value)))
.each(styleMaybeRemove(this._id, name))
: this
.styleTween(name, styleConstant(name, i, value), priority)
.on("end.style." + name, null);
}
function styleInterpolate(name, i, priority) {
return function(t) {
this.style.setProperty(name, i.call(this, t), priority);
};
}
function styleTween(name, value, priority) {
var t, i0;
function tween() {
var i = value.apply(this, arguments);
if (i !== i0) t = (i0 = i) && styleInterpolate(name, i, priority);
return t;
}
tween._value = value;
return tween;
}
function transition_styleTween(name, value, priority) {
var key = "style." + (name += "");
if (arguments.length < 2) return (key = this.tween(key)) && key._value;
if (value == null) return this.tween(key, null);
if (typeof value !== "function") throw new Error;
return this.tween(key, styleTween(name, value, priority == null ? "" : priority));
}
function textConstant(value) {
return function() {
this.textContent = value;
};
}
function textFunction(value) {
return function() {
var value1 = value(this);
this.textContent = value1 == null ? "" : value1;
};
}
function transition_text(value) {
return this.tween("text", typeof value === "function"
? textFunction(tweenValue(this, "text", value))
: textConstant(value == null ? "" : value + ""));
}
function textInterpolate(i) {
return function(t) {
this.textContent = i.call(this, t);
};
}
function textTween(value) {
var t0, i0;
function tween() {
var i = value.apply(this, arguments);
if (i !== i0) t0 = (i0 = i) && textInterpolate(i);
return t0;
}
tween._value = value;
return tween;
}
function transition_textTween(value) {
var key = "text";
if (arguments.length < 1) return (key = this.tween(key)) && key._value;
if (value == null) return this.tween(key, null);
if (typeof value !== "function") throw new Error;
return this.tween(key, textTween(value));
}
function transition_transition() {
var name = this._name,
id0 = this._id,
id1 = newId();
for (var groups = this._groups, m = groups.length, j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {
if (node = group[i]) {
var inherit = get(node, id0);
schedule(node, name, id1, i, group, {
time: inherit.time + inherit.delay + inherit.duration,
delay: 0,
duration: inherit.duration,
ease: inherit.ease
});
}
}
}
return new Transition(groups, this._parents, name, id1);
}
function transition_end() {
var on0, on1, that = this, id = that._id, size = that.size();
return new Promise(function(resolve, reject) {
var cancel = {value: reject},
end = {value: function() { if (--size === 0) resolve(); }};
that.each(function() {
var schedule = set(this, id),
on = schedule.on;
// If this node shared a dispatch with the previous node,
// just assign the updated shared dispatch and were done!
// Otherwise, copy-on-write.
if (on !== on0) {
on1 = (on0 = on).copy();
on1._.cancel.push(cancel);
on1._.interrupt.push(cancel);
on1._.end.push(end);
}
schedule.on = on1;
});
// The selection was empty, resolve end immediately
if (size === 0) resolve();
});
}
var id = 0;
function Transition(groups, parents, name, id) {
this._groups = groups;
this._parents = parents;
this._name = name;
this._id = id;
}
function newId() {
return ++id;
}
var selection_prototype = selection.prototype;
Transition.prototype = {
constructor: Transition,
select: transition_select,
selectAll: transition_selectAll,
selectChild: selection_prototype.selectChild,
selectChildren: selection_prototype.selectChildren,
filter: transition_filter,
merge: transition_merge,
selection: transition_selection,
transition: transition_transition,
call: selection_prototype.call,
nodes: selection_prototype.nodes,
node: selection_prototype.node,
size: selection_prototype.size,
empty: selection_prototype.empty,
each: selection_prototype.each,
on: transition_on,
attr: transition_attr,
attrTween: transition_attrTween,
style: transition_style,
styleTween: transition_styleTween,
text: transition_text,
textTween: transition_textTween,
remove: transition_remove,
tween: transition_tween,
delay: transition_delay,
duration: transition_duration,
ease: transition_ease,
easeVarying: transition_easeVarying,
end: transition_end,
[Symbol.iterator]: selection_prototype[Symbol.iterator]
};
function cubicInOut(t) {
return ((t *= 2) <= 1 ? t * t * t : (t -= 2) * t * t + 2) / 2;
}
var defaultTiming = {
time: null, // Set on use.
delay: 0,
duration: 250,
ease: cubicInOut
};
function inherit(node, id) {
var timing;
while (!(timing = node.__transition) || !(timing = timing[id])) {
if (!(node = node.parentNode)) {
throw new Error(`transition ${id} not found`);
}
}
return timing;
}
function selection_transition(name) {
var id,
timing;
if (name instanceof Transition) {
id = name._id, name = name._name;
} else {
id = newId(), (timing = defaultTiming).time = now$2(), name = name == null ? null : name + "";
}
for (var groups = this._groups, m = groups.length, j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {
if (node = group[i]) {
schedule(node, name, id, i, group, timing || inherit(node, id));
}
}
}
return new Transition(groups, this._parents, name, id);
}
selection.prototype.interrupt = selection_interrupt;
selection.prototype.transition = selection_transition;
var constant$1 = x => () => x;
function ZoomEvent(type, {
sourceEvent,
target,
transform,
dispatch
}) {
Object.defineProperties(this, {
type: {value: type, enumerable: true, configurable: true},
sourceEvent: {value: sourceEvent, enumerable: true, configurable: true},
target: {value: target, enumerable: true, configurable: true},
transform: {value: transform, enumerable: true, configurable: true},
_: {value: dispatch}
});
}
function Transform(k, x, y) {
this.k = k;
this.x = x;
this.y = y;
}
Transform.prototype = {
constructor: Transform,
scale: function(k) {
return k === 1 ? this : new Transform(this.k * k, this.x, this.y);
},
translate: function(x, y) {
return x === 0 & y === 0 ? this : new Transform(this.k, this.x + this.k * x, this.y + this.k * y);
},
apply: function(point) {
return [point[0] * this.k + this.x, point[1] * this.k + this.y];
},
applyX: function(x) {
return x * this.k + this.x;
},
applyY: function(y) {
return y * this.k + this.y;
},
invert: function(location) {
return [(location[0] - this.x) / this.k, (location[1] - this.y) / this.k];
},
invertX: function(x) {
return (x - this.x) / this.k;
},
invertY: function(y) {
return (y - this.y) / this.k;
},
rescaleX: function(x) {
return x.copy().domain(x.range().map(this.invertX, this).map(x.invert, x));
},
rescaleY: function(y) {
return y.copy().domain(y.range().map(this.invertY, this).map(y.invert, y));
},
toString: function() {
return "translate(" + this.x + "," + this.y + ") scale(" + this.k + ")";
}
};
var identity = new Transform(1, 0, 0);
transform.prototype = Transform.prototype;
function transform(node) {
while (!node.__zoom) if (!(node = node.parentNode)) return identity;
return node.__zoom;
}
function nopropagation(event) {
event.stopImmediatePropagation();
}
function noevent(event) {
event.preventDefault();
event.stopImmediatePropagation();
}
// Ignore right-click, since that should open the context menu.
// except for pinch-to-zoom, which is sent as a wheel+ctrlKey event
function defaultFilter(event) {
return (!event.ctrlKey || event.type === 'wheel') && !event.button;
}
function defaultExtent() {
var e = this;
if (e instanceof SVGElement) {
e = e.ownerSVGElement || e;
if (e.hasAttribute("viewBox")) {
e = e.viewBox.baseVal;
return [[e.x, e.y], [e.x + e.width, e.y + e.height]];
}
return [[0, 0], [e.width.baseVal.value, e.height.baseVal.value]];
}
return [[0, 0], [e.clientWidth, e.clientHeight]];
}
function defaultTransform() {
return this.__zoom || identity;
}
function defaultWheelDelta(event) {
return -event.deltaY * (event.deltaMode === 1 ? 0.05 : event.deltaMode ? 1 : 0.002) * (event.ctrlKey ? 10 : 1);
}
function defaultTouchable() {
return navigator.maxTouchPoints || ("ontouchstart" in this);
}
function defaultConstrain(transform, extent, translateExtent) {
var dx0 = transform.invertX(extent[0][0]) - translateExtent[0][0],
dx1 = transform.invertX(extent[1][0]) - translateExtent[1][0],
dy0 = transform.invertY(extent[0][1]) - translateExtent[0][1],
dy1 = transform.invertY(extent[1][1]) - translateExtent[1][1];
return transform.translate(
dx1 > dx0 ? (dx0 + dx1) / 2 : Math.min(0, dx0) || Math.max(0, dx1),
dy1 > dy0 ? (dy0 + dy1) / 2 : Math.min(0, dy0) || Math.max(0, dy1)
);
}
function d3Zoom() {
var filter = defaultFilter,
extent = defaultExtent,
constrain = defaultConstrain,
wheelDelta = defaultWheelDelta,
touchable = defaultTouchable,
scaleExtent = [0, Infinity],
translateExtent = [[-Infinity, -Infinity], [Infinity, Infinity]],
duration = 250,
interpolate = interpolateZoom,
listeners = dispatch("start", "zoom", "end"),
touchstarting,
touchfirst,
touchending,
touchDelay = 500,
wheelDelay = 150,
clickDistance2 = 0,
tapDistance = 10;
function zoom(selection) {
selection
.property("__zoom", defaultTransform)
.on("wheel.zoom", wheeled, {passive: false})
.on("mousedown.zoom", mousedowned)
.on("dblclick.zoom", dblclicked)
.filter(touchable)
.on("touchstart.zoom", touchstarted)
.on("touchmove.zoom", touchmoved)
.on("touchend.zoom touchcancel.zoom", touchended)
.style("-webkit-tap-highlight-color", "rgba(0,0,0,0)");
}
zoom.transform = function(collection, transform, point, event) {
var selection = collection.selection ? collection.selection() : collection;
selection.property("__zoom", defaultTransform);
if (collection !== selection) {
schedule(collection, transform, point, event);
} else {
selection.interrupt().each(function() {
gesture(this, arguments)
.event(event)
.start()
.zoom(null, typeof transform === "function" ? transform.apply(this, arguments) : transform)
.end();
});
}
};
zoom.scaleBy = function(selection, k, p, event) {
zoom.scaleTo(selection, function() {
var k0 = this.__zoom.k,
k1 = typeof k === "function" ? k.apply(this, arguments) : k;
return k0 * k1;
}, p, event);
};
zoom.scaleTo = function(selection, k, p, event) {
zoom.transform(selection, function() {
var e = extent.apply(this, arguments),
t0 = this.__zoom,
p0 = p == null ? centroid(e) : typeof p === "function" ? p.apply(this, arguments) : p,
p1 = t0.invert(p0),
k1 = typeof k === "function" ? k.apply(this, arguments) : k;
return constrain(translate(scale(t0, k1), p0, p1), e, translateExtent);
}, p, event);
};
zoom.translateBy = function(selection, x, y, event) {
zoom.transform(selection, function() {
return constrain(this.__zoom.translate(
typeof x === "function" ? x.apply(this, arguments) : x,
typeof y === "function" ? y.apply(this, arguments) : y
), extent.apply(this, arguments), translateExtent);
}, null, event);
};
zoom.translateTo = function(selection, x, y, p, event) {
zoom.transform(selection, function() {
var e = extent.apply(this, arguments),
t = this.__zoom,
p0 = p == null ? centroid(e) : typeof p === "function" ? p.apply(this, arguments) : p;
return constrain(identity.translate(p0[0], p0[1]).scale(t.k).translate(
typeof x === "function" ? -x.apply(this, arguments) : -x,
typeof y === "function" ? -y.apply(this, arguments) : -y
), e, translateExtent);
}, p, event);
};
function scale(transform, k) {
k = Math.max(scaleExtent[0], Math.min(scaleExtent[1], k));
return k === transform.k ? transform : new Transform(k, transform.x, transform.y);
}
function translate(transform, p0, p1) {
var x = p0[0] - p1[0] * transform.k, y = p0[1] - p1[1] * transform.k;
return x === transform.x && y === transform.y ? transform : new Transform(transform.k, x, y);
}
function centroid(extent) {
return [(+extent[0][0] + +extent[1][0]) / 2, (+extent[0][1] + +extent[1][1]) / 2];
}
function schedule(transition, transform, point, event) {
transition
.on("start.zoom", function() { gesture(this, arguments).event(event).start(); })
.on("interrupt.zoom end.zoom", function() { gesture(this, arguments).event(event).end(); })
.tween("zoom", function() {
var that = this,
args = arguments,
g = gesture(that, args).event(event),
e = extent.apply(that, args),
p = point == null ? centroid(e) : typeof point === "function" ? point.apply(that, args) : point,
w = Math.max(e[1][0] - e[0][0], e[1][1] - e[0][1]),
a = that.__zoom,
b = typeof transform === "function" ? transform.apply(that, args) : transform,
i = interpolate(a.invert(p).concat(w / a.k), b.invert(p).concat(w / b.k));
return function(t) {
if (t === 1) t = b; // Avoid rounding error on end.
else { var l = i(t), k = w / l[2]; t = new Transform(k, p[0] - l[0] * k, p[1] - l[1] * k); }
g.zoom(null, t);
};
});
}
function gesture(that, args, clean) {
return (!clean && that.__zooming) || new Gesture(that, args);
}
function Gesture(that, args) {
this.that = that;
this.args = args;
this.active = 0;
this.sourceEvent = null;
this.extent = extent.apply(that, args);
this.taps = 0;
}
Gesture.prototype = {
event: function(event) {
if (event) this.sourceEvent = event;
return this;
},
start: function() {
if (++this.active === 1) {
this.that.__zooming = this;
this.emit("start");
}
return this;
},
zoom: function(key, transform) {
if (this.mouse && key !== "mouse") this.mouse[1] = transform.invert(this.mouse[0]);
if (this.touch0 && key !== "touch") this.touch0[1] = transform.invert(this.touch0[0]);
if (this.touch1 && key !== "touch") this.touch1[1] = transform.invert(this.touch1[0]);
this.that.__zoom = transform;
this.emit("zoom");
return this;
},
end: function() {
if (--this.active === 0) {
delete this.that.__zooming;
this.emit("end");
}
return this;
},
emit: function(type) {
var d = d3Select(this.that).datum();
listeners.call(
type,
this.that,
new ZoomEvent(type, {
sourceEvent: this.sourceEvent,
target: zoom,
type,
transform: this.that.__zoom,
dispatch: listeners
}),
d
);
}
};
function wheeled(event, ...args) {
if (!filter.apply(this, arguments)) return;
var g = gesture(this, args).event(event),
t = this.__zoom,
k = Math.max(scaleExtent[0], Math.min(scaleExtent[1], t.k * Math.pow(2, wheelDelta.apply(this, arguments)))),
p = pointer(event);
// If the mouse is in the same location as before, reuse it.
// If there were recent wheel events, reset the wheel idle timeout.
if (g.wheel) {
if (g.mouse[0][0] !== p[0] || g.mouse[0][1] !== p[1]) {
g.mouse[1] = t.invert(g.mouse[0] = p);
}
clearTimeout(g.wheel);
}
// If this wheel event wont trigger a transform change, ignore it.
else if (t.k === k) return;
// Otherwise, capture the mouse point and location at the start.
else {
g.mouse = [p, t.invert(p)];
interrupt(this);
g.start();
}
noevent(event);
g.wheel = setTimeout(wheelidled, wheelDelay);
g.zoom("mouse", constrain(translate(scale(t, k), g.mouse[0], g.mouse[1]), g.extent, translateExtent));
function wheelidled() {
g.wheel = null;
g.end();
}
}
function mousedowned(event, ...args) {
if (touchending || !filter.apply(this, arguments)) return;
var currentTarget = event.currentTarget,
g = gesture(this, args, true).event(event),
v = d3Select(event.view).on("mousemove.zoom", mousemoved, true).on("mouseup.zoom", mouseupped, true),
p = pointer(event, currentTarget),
x0 = event.clientX,
y0 = event.clientY;
dragDisable(event.view);
nopropagation(event);
g.mouse = [p, this.__zoom.invert(p)];
interrupt(this);
g.start();
function mousemoved(event) {
noevent(event);
if (!g.moved) {
var dx = event.clientX - x0, dy = event.clientY - y0;
g.moved = dx * dx + dy * dy > clickDistance2;
}
g.event(event)
.zoom("mouse", constrain(translate(g.that.__zoom, g.mouse[0] = pointer(event, currentTarget), g.mouse[1]), g.extent, translateExtent));
}
function mouseupped(event) {
v.on("mousemove.zoom mouseup.zoom", null);
yesdrag(event.view, g.moved);
noevent(event);
g.event(event).end();
}
}
function dblclicked(event, ...args) {
if (!filter.apply(this, arguments)) return;
var t0 = this.__zoom,
p0 = pointer(event.changedTouches ? event.changedTouches[0] : event, this),
p1 = t0.invert(p0),
k1 = t0.k * (event.shiftKey ? 0.5 : 2),
t1 = constrain(translate(scale(t0, k1), p0, p1), extent.apply(this, args), translateExtent);
noevent(event);
if (duration > 0) d3Select(this).transition().duration(duration).call(schedule, t1, p0, event);
else d3Select(this).call(zoom.transform, t1, p0, event);
}
function touchstarted(event, ...args) {
if (!filter.apply(this, arguments)) return;
var touches = event.touches,
n = touches.length,
g = gesture(this, args, event.changedTouches.length === n).event(event),
started, i, t, p;
nopropagation(event);
for (i = 0; i < n; ++i) {
t = touches[i], p = pointer(t, this);
p = [p, this.__zoom.invert(p), t.identifier];
if (!g.touch0) g.touch0 = p, started = true, g.taps = 1 + !!touchstarting;
else if (!g.touch1 && g.touch0[2] !== p[2]) g.touch1 = p, g.taps = 0;
}
if (touchstarting) touchstarting = clearTimeout(touchstarting);
if (started) {
if (g.taps < 2) touchfirst = p[0], touchstarting = setTimeout(function() { touchstarting = null; }, touchDelay);
interrupt(this);
g.start();
}
}
function touchmoved(event, ...args) {
if (!this.__zooming) return;
var g = gesture(this, args).event(event),
touches = event.changedTouches,
n = touches.length, i, t, p, l;
noevent(event);
for (i = 0; i < n; ++i) {
t = touches[i], p = pointer(t, this);
if (g.touch0 && g.touch0[2] === t.identifier) g.touch0[0] = p;
else if (g.touch1 && g.touch1[2] === t.identifier) g.touch1[0] = p;
}
t = g.that.__zoom;
if (g.touch1) {
var p0 = g.touch0[0], l0 = g.touch0[1],
p1 = g.touch1[0], l1 = g.touch1[1],
dp = (dp = p1[0] - p0[0]) * dp + (dp = p1[1] - p0[1]) * dp,
dl = (dl = l1[0] - l0[0]) * dl + (dl = l1[1] - l0[1]) * dl;
t = scale(t, Math.sqrt(dp / dl));
p = [(p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2];
l = [(l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2];
}
else if (g.touch0) p = g.touch0[0], l = g.touch0[1];
else return;
g.zoom("touch", constrain(translate(t, p, l), g.extent, translateExtent));
}
function touchended(event, ...args) {
if (!this.__zooming) return;
var g = gesture(this, args).event(event),
touches = event.changedTouches,
n = touches.length, i, t;
nopropagation(event);
if (touchending) clearTimeout(touchending);
touchending = setTimeout(function() { touchending = null; }, touchDelay);
for (i = 0; i < n; ++i) {
t = touches[i];
if (g.touch0 && g.touch0[2] === t.identifier) delete g.touch0;
else if (g.touch1 && g.touch1[2] === t.identifier) delete g.touch1;
}
if (g.touch1 && !g.touch0) g.touch0 = g.touch1, delete g.touch1;
if (g.touch0) g.touch0[1] = this.__zoom.invert(g.touch0[0]);
else {
g.end();
// If this was a dbltap, reroute to the (optional) dblclick.zoom handler.
if (g.taps === 2) {
t = pointer(t, this);
if (Math.hypot(touchfirst[0] - t[0], touchfirst[1] - t[1]) < tapDistance) {
var p = d3Select(this).on("dblclick.zoom");
if (p) p.apply(this, arguments);
}
}
}
}
zoom.wheelDelta = function(_) {
return arguments.length ? (wheelDelta = typeof _ === "function" ? _ : constant$1(+_), zoom) : wheelDelta;
};
zoom.filter = function(_) {
return arguments.length ? (filter = typeof _ === "function" ? _ : constant$1(!!_), zoom) : filter;
};
zoom.touchable = function(_) {
return arguments.length ? (touchable = typeof _ === "function" ? _ : constant$1(!!_), zoom) : touchable;
};
zoom.extent = function(_) {
return arguments.length ? (extent = typeof _ === "function" ? _ : constant$1([[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]]), zoom) : extent;
};
zoom.scaleExtent = function(_) {
return arguments.length ? (scaleExtent[0] = +_[0], scaleExtent[1] = +_[1], zoom) : [scaleExtent[0], scaleExtent[1]];
};
zoom.translateExtent = function(_) {
return arguments.length ? (translateExtent[0][0] = +_[0][0], translateExtent[1][0] = +_[1][0], translateExtent[0][1] = +_[0][1], translateExtent[1][1] = +_[1][1], zoom) : [[translateExtent[0][0], translateExtent[0][1]], [translateExtent[1][0], translateExtent[1][1]]];
};
zoom.constrain = function(_) {
return arguments.length ? (constrain = _, zoom) : constrain;
};
zoom.duration = function(_) {
return arguments.length ? (duration = +_, zoom) : duration;
};
zoom.interpolate = function(_) {
return arguments.length ? (interpolate = _, zoom) : interpolate;
};
zoom.on = function() {
var value = listeners.on.apply(listeners, arguments);
return value === listeners ? zoom : value;
};
zoom.clickDistance = function(_) {
return arguments.length ? (clickDistance2 = (_ = +_) * _, zoom) : Math.sqrt(clickDistance2);
};
zoom.tapDistance = function(_) {
return arguments.length ? (tapDistance = +_, zoom) : tapDistance;
};
return zoom;
}
class InternMap extends Map {
constructor(entries, key = keyof) {
super();
Object.defineProperties(this, {_intern: {value: new Map()}, _key: {value: key}});
if (entries != null) for (const [key, value] of entries) this.set(key, value);
}
get(key) {
return super.get(intern_get(this, key));
}
has(key) {
return super.has(intern_get(this, key));
}
set(key, value) {
return super.set(intern_set(this, key), value);
}
delete(key) {
return super.delete(intern_delete(this, key));
}
}
function intern_get({_intern, _key}, value) {
const key = _key(value);
return _intern.has(key) ? _intern.get(key) : value;
}
function intern_set({_intern, _key}, value) {
const key = _key(value);
if (_intern.has(key)) return _intern.get(key);
_intern.set(key, value);
return value;
}
function intern_delete({_intern, _key}, value) {
const key = _key(value);
if (_intern.has(key)) {
value = _intern.get(key);
_intern.delete(key);
}
return value;
}
function keyof(value) {
return value !== null && typeof value === "object" ? value.valueOf() : value;
}
function max$1(values, valueof) {
let max;
if (valueof === undefined) {
for (const value of values) {
if (value != null
&& (max < value || (max === undefined && value >= value))) {
max = value;
}
}
} else {
let index = -1;
for (let value of values) {
if ((value = valueof(value, ++index, values)) != null
&& (max < value || (max === undefined && value >= value))) {
max = value;
}
}
}
return max;
}
function min$1(values, valueof) {
let min;
if (valueof === undefined) {
for (const value of values) {
if (value != null
&& (min > value || (min === undefined && value >= value))) {
min = value;
}
}
} else {
let index = -1;
for (let value of values) {
if ((value = valueof(value, ++index, values)) != null
&& (min > value || (min === undefined && value >= value))) {
min = value;
}
}
}
return min;
}
/** Detect free variable `global` from Node.js. */
var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;
/** Detect free variable `self`. */
var freeSelf = typeof self == 'object' && self && self.Object === Object && self;
/** Used as a reference to the global object. */
var root = freeGlobal || freeSelf || Function('return this')();
/** Built-in value references. */
var Symbol$1 = root.Symbol;
/** Used for built-in method references. */
var objectProto$1 = Object.prototype;
/** Used to check objects for own properties. */
var hasOwnProperty = objectProto$1.hasOwnProperty;
/**
* Used to resolve the
* [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
* of values.
*/
var nativeObjectToString$1 = objectProto$1.toString;
/** Built-in value references. */
var symToStringTag$1 = Symbol$1 ? Symbol$1.toStringTag : undefined;
/**
* A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.
*
* @private
* @param {*} value The value to query.
* @returns {string} Returns the raw `toStringTag`.
*/
function getRawTag(value) {
var isOwn = hasOwnProperty.call(value, symToStringTag$1),
tag = value[symToStringTag$1];
try {
value[symToStringTag$1] = undefined;
var unmasked = true;
} catch (e) {}
var result = nativeObjectToString$1.call(value);
if (unmasked) {
if (isOwn) {
value[symToStringTag$1] = tag;
} else {
delete value[symToStringTag$1];
}
}
return result;
}
/** Used for built-in method references. */
var objectProto = Object.prototype;
/**
* Used to resolve the
* [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
* of values.
*/
var nativeObjectToString = objectProto.toString;
/**
* Converts `value` to a string using `Object.prototype.toString`.
*
* @private
* @param {*} value The value to convert.
* @returns {string} Returns the converted string.
*/
function objectToString(value) {
return nativeObjectToString.call(value);
}
/** `Object#toString` result references. */
var nullTag = '[object Null]',
undefinedTag = '[object Undefined]';
/** Built-in value references. */
var symToStringTag = Symbol$1 ? Symbol$1.toStringTag : undefined;
/**
* The base implementation of `getTag` without fallbacks for buggy environments.
*
* @private
* @param {*} value The value to query.
* @returns {string} Returns the `toStringTag`.
*/
function baseGetTag(value) {
if (value == null) {
return value === undefined ? undefinedTag : nullTag;
}
return (symToStringTag && symToStringTag in Object(value))
? getRawTag(value)
: objectToString(value);
}
/**
* Checks if `value` is object-like. A value is object-like if it's not `null`
* and has a `typeof` result of "object".
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is object-like, else `false`.
* @example
*
* _.isObjectLike({});
* // => true
*
* _.isObjectLike([1, 2, 3]);
* // => true
*
* _.isObjectLike(_.noop);
* // => false
*
* _.isObjectLike(null);
* // => false
*/
function isObjectLike(value) {
return value != null && typeof value == 'object';
}
/** `Object#toString` result references. */
var symbolTag = '[object Symbol]';
/**
* Checks if `value` is classified as a `Symbol` primitive or object.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
* @example
*
* _.isSymbol(Symbol.iterator);
* // => true
*
* _.isSymbol('abc');
* // => false
*/
function isSymbol(value) {
return typeof value == 'symbol' ||
(isObjectLike(value) && baseGetTag(value) == symbolTag);
}
/** Used to match a single whitespace character. */
var reWhitespace = /\s/;
/**
* Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace
* character of `string`.
*
* @private
* @param {string} string The string to inspect.
* @returns {number} Returns the index of the last non-whitespace character.
*/
function trimmedEndIndex(string) {
var index = string.length;
while (index-- && reWhitespace.test(string.charAt(index))) {}
return index;
}
/** Used to match leading whitespace. */
var reTrimStart = /^\s+/;
/**
* The base implementation of `_.trim`.
*
* @private
* @param {string} string The string to trim.
* @returns {string} Returns the trimmed string.
*/
function baseTrim(string) {
return string
? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '')
: string;
}
/**
* Checks if `value` is the
* [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
* of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is an object, else `false`.
* @example
*
* _.isObject({});
* // => true
*
* _.isObject([1, 2, 3]);
* // => true
*
* _.isObject(_.noop);
* // => true
*
* _.isObject(null);
* // => false
*/
function isObject(value) {
var type = typeof value;
return value != null && (type == 'object' || type == 'function');
}
/** Used as references for various `Number` constants. */
var NAN = 0 / 0;
/** Used to detect bad signed hexadecimal string values. */
var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;
/** Used to detect binary string values. */
var reIsBinary = /^0b[01]+$/i;
/** Used to detect octal string values. */
var reIsOctal = /^0o[0-7]+$/i;
/** Built-in method references without a dependency on `root`. */
var freeParseInt = parseInt;
/**
* Converts `value` to a number.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to process.
* @returns {number} Returns the number.
* @example
*
* _.toNumber(3.2);
* // => 3.2
*
* _.toNumber(Number.MIN_VALUE);
* // => 5e-324
*
* _.toNumber(Infinity);
* // => Infinity
*
* _.toNumber('3.2');
* // => 3.2
*/
function toNumber(value) {
if (typeof value == 'number') {
return value;
}
if (isSymbol(value)) {
return NAN;
}
if (isObject(value)) {
var other = typeof value.valueOf == 'function' ? value.valueOf() : value;
value = isObject(other) ? (other + '') : other;
}
if (typeof value != 'string') {
return value === 0 ? value : +value;
}
value = baseTrim(value);
var isBinary = reIsBinary.test(value);
return (isBinary || reIsOctal.test(value))
? freeParseInt(value.slice(2), isBinary ? 2 : 8)
: (reIsBadHex.test(value) ? NAN : +value);
}
/**
* Gets the timestamp of the number of milliseconds that have elapsed since
* the Unix epoch (1 January 1970 00:00:00 UTC).
*
* @static
* @memberOf _
* @since 2.4.0
* @category Date
* @returns {number} Returns the timestamp.
* @example
*
* _.defer(function(stamp) {
* console.log(_.now() - stamp);
* }, _.now());
* // => Logs the number of milliseconds it took for the deferred invocation.
*/
var now$1 = function() {
return root.Date.now();
};
/** Error message constants. */
var FUNC_ERROR_TEXT$1 = 'Expected a function';
/* Built-in method references for those with the same name as other `lodash` methods. */
var nativeMax = Math.max,
nativeMin = Math.min;
/**
* Creates a debounced function that delays invoking `func` until after `wait`
* milliseconds have elapsed since the last time the debounced function was
* invoked. The debounced function comes with a `cancel` method to cancel
* delayed `func` invocations and a `flush` method to immediately invoke them.
* Provide `options` to indicate whether `func` should be invoked on the
* leading and/or trailing edge of the `wait` timeout. The `func` is invoked
* with the last arguments provided to the debounced function. Subsequent
* calls to the debounced function return the result of the last `func`
* invocation.
*
* **Note:** If `leading` and `trailing` options are `true`, `func` is
* invoked on the trailing edge of the timeout only if the debounced function
* is invoked more than once during the `wait` timeout.
*
* If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
* until to the next tick, similar to `setTimeout` with a timeout of `0`.
*
* See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
* for details over the differences between `_.debounce` and `_.throttle`.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Function
* @param {Function} func The function to debounce.
* @param {number} [wait=0] The number of milliseconds to delay.
* @param {Object} [options={}] The options object.
* @param {boolean} [options.leading=false]
* Specify invoking on the leading edge of the timeout.
* @param {number} [options.maxWait]
* The maximum time `func` is allowed to be delayed before it's invoked.
* @param {boolean} [options.trailing=true]
* Specify invoking on the trailing edge of the timeout.
* @returns {Function} Returns the new debounced function.
* @example
*
* // Avoid costly calculations while the window size is in flux.
* jQuery(window).on('resize', _.debounce(calculateLayout, 150));
*
* // Invoke `sendMail` when clicked, debouncing subsequent calls.
* jQuery(element).on('click', _.debounce(sendMail, 300, {
* 'leading': true,
* 'trailing': false
* }));
*
* // Ensure `batchLog` is invoked once after 1 second of debounced calls.
* var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });
* var source = new EventSource('/stream');
* jQuery(source).on('message', debounced);
*
* // Cancel the trailing debounced invocation.
* jQuery(window).on('popstate', debounced.cancel);
*/
function debounce(func, wait, options) {
var lastArgs,
lastThis,
maxWait,
result,
timerId,
lastCallTime,
lastInvokeTime = 0,
leading = false,
maxing = false,
trailing = true;
if (typeof func != 'function') {
throw new TypeError(FUNC_ERROR_TEXT$1);
}
wait = toNumber(wait) || 0;
if (isObject(options)) {
leading = !!options.leading;
maxing = 'maxWait' in options;
maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;
trailing = 'trailing' in options ? !!options.trailing : trailing;
}
function invokeFunc(time) {
var args = lastArgs,
thisArg = lastThis;
lastArgs = lastThis = undefined;
lastInvokeTime = time;
result = func.apply(thisArg, args);
return result;
}
function leadingEdge(time) {
// Reset any `maxWait` timer.
lastInvokeTime = time;
// Start the timer for the trailing edge.
timerId = setTimeout(timerExpired, wait);
// Invoke the leading edge.
return leading ? invokeFunc(time) : result;
}
function remainingWait(time) {
var timeSinceLastCall = time - lastCallTime,
timeSinceLastInvoke = time - lastInvokeTime,
timeWaiting = wait - timeSinceLastCall;
return maxing
? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)
: timeWaiting;
}
function shouldInvoke(time) {
var timeSinceLastCall = time - lastCallTime,
timeSinceLastInvoke = time - lastInvokeTime;
// Either this is the first call, activity has stopped and we're at the
// trailing edge, the system time has gone backwards and we're treating
// it as the trailing edge, or we've hit the `maxWait` limit.
return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||
(timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));
}
function timerExpired() {
var time = now$1();
if (shouldInvoke(time)) {
return trailingEdge(time);
}
// Restart the timer.
timerId = setTimeout(timerExpired, remainingWait(time));
}
function trailingEdge(time) {
timerId = undefined;
// Only invoke if we have `lastArgs` which means `func` has been
// debounced at least once.
if (trailing && lastArgs) {
return invokeFunc(time);
}
lastArgs = lastThis = undefined;
return result;
}
function cancel() {
if (timerId !== undefined) {
clearTimeout(timerId);
}
lastInvokeTime = 0;
lastArgs = lastCallTime = lastThis = timerId = undefined;
}
function flush() {
return timerId === undefined ? result : trailingEdge(now$1());
}
function debounced() {
var time = now$1(),
isInvoking = shouldInvoke(time);
lastArgs = arguments;
lastThis = this;
lastCallTime = time;
if (isInvoking) {
if (timerId === undefined) {
return leadingEdge(lastCallTime);
}
if (maxing) {
// Handle invocations in a tight loop.
clearTimeout(timerId);
timerId = setTimeout(timerExpired, wait);
return invokeFunc(lastCallTime);
}
}
if (timerId === undefined) {
timerId = setTimeout(timerExpired, wait);
}
return result;
}
debounced.cancel = cancel;
debounced.flush = flush;
return debounced;
}
/** Error message constants. */
var FUNC_ERROR_TEXT = 'Expected a function';
/**
* Creates a throttled function that only invokes `func` at most once per
* every `wait` milliseconds. The throttled function comes with a `cancel`
* method to cancel delayed `func` invocations and a `flush` method to
* immediately invoke them. Provide `options` to indicate whether `func`
* should be invoked on the leading and/or trailing edge of the `wait`
* timeout. The `func` is invoked with the last arguments provided to the
* throttled function. Subsequent calls to the throttled function return the
* result of the last `func` invocation.
*
* **Note:** If `leading` and `trailing` options are `true`, `func` is
* invoked on the trailing edge of the timeout only if the throttled function
* is invoked more than once during the `wait` timeout.
*
* If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
* until to the next tick, similar to `setTimeout` with a timeout of `0`.
*
* See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
* for details over the differences between `_.throttle` and `_.debounce`.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Function
* @param {Function} func The function to throttle.
* @param {number} [wait=0] The number of milliseconds to throttle invocations to.
* @param {Object} [options={}] The options object.
* @param {boolean} [options.leading=true]
* Specify invoking on the leading edge of the timeout.
* @param {boolean} [options.trailing=true]
* Specify invoking on the trailing edge of the timeout.
* @returns {Function} Returns the new throttled function.
* @example
*
* // Avoid excessively updating the position while scrolling.
* jQuery(window).on('scroll', _.throttle(updatePosition, 100));
*
* // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.
* var throttled = _.throttle(renewToken, 300000, { 'trailing': false });
* jQuery(element).on('click', throttled);
*
* // Cancel the trailing throttled invocation.
* jQuery(window).on('popstate', throttled.cancel);
*/
function throttle(func, wait, options) {
var leading = true,
trailing = true;
if (typeof func != 'function') {
throw new TypeError(FUNC_ERROR_TEXT);
}
if (isObject(options)) {
leading = 'leading' in options ? !!options.leading : leading;
trailing = 'trailing' in options ? !!options.trailing : trailing;
}
return debounce(func, wait, {
'leading': leading,
'maxWait': wait,
'trailing': trailing
});
}
/**
* The Ease class provides a collection of easing functions for use with tween.js.
*/
var Easing = Object.freeze({
Linear: Object.freeze({
None: function (amount) {
return amount;
},
In: function (amount) {
return this.None(amount);
},
Out: function (amount) {
return this.None(amount);
},
InOut: function (amount) {
return this.None(amount);
},
}),
Quadratic: Object.freeze({
In: function (amount) {
return amount * amount;
},
Out: function (amount) {
return amount * (2 - amount);
},
InOut: function (amount) {
if ((amount *= 2) < 1) {
return 0.5 * amount * amount;
}
return -0.5 * (--amount * (amount - 2) - 1);
},
}),
Cubic: Object.freeze({
In: function (amount) {
return amount * amount * amount;
},
Out: function (amount) {
return --amount * amount * amount + 1;
},
InOut: function (amount) {
if ((amount *= 2) < 1) {
return 0.5 * amount * amount * amount;
}
return 0.5 * ((amount -= 2) * amount * amount + 2);
},
}),
Quartic: Object.freeze({
In: function (amount) {
return amount * amount * amount * amount;
},
Out: function (amount) {
return 1 - --amount * amount * amount * amount;
},
InOut: function (amount) {
if ((amount *= 2) < 1) {
return 0.5 * amount * amount * amount * amount;
}
return -0.5 * ((amount -= 2) * amount * amount * amount - 2);
},
}),
Quintic: Object.freeze({
In: function (amount) {
return amount * amount * amount * amount * amount;
},
Out: function (amount) {
return --amount * amount * amount * amount * amount + 1;
},
InOut: function (amount) {
if ((amount *= 2) < 1) {
return 0.5 * amount * amount * amount * amount * amount;
}
return 0.5 * ((amount -= 2) * amount * amount * amount * amount + 2);
},
}),
Sinusoidal: Object.freeze({
In: function (amount) {
return 1 - Math.sin(((1.0 - amount) * Math.PI) / 2);
},
Out: function (amount) {
return Math.sin((amount * Math.PI) / 2);
},
InOut: function (amount) {
return 0.5 * (1 - Math.sin(Math.PI * (0.5 - amount)));
},
}),
Exponential: Object.freeze({
In: function (amount) {
return amount === 0 ? 0 : Math.pow(1024, amount - 1);
},
Out: function (amount) {
return amount === 1 ? 1 : 1 - Math.pow(2, -10 * amount);
},
InOut: function (amount) {
if (amount === 0) {
return 0;
}
if (amount === 1) {
return 1;
}
if ((amount *= 2) < 1) {
return 0.5 * Math.pow(1024, amount - 1);
}
return 0.5 * (-Math.pow(2, -10 * (amount - 1)) + 2);
},
}),
Circular: Object.freeze({
In: function (amount) {
return 1 - Math.sqrt(1 - amount * amount);
},
Out: function (amount) {
return Math.sqrt(1 - --amount * amount);
},
InOut: function (amount) {
if ((amount *= 2) < 1) {
return -0.5 * (Math.sqrt(1 - amount * amount) - 1);
}
return 0.5 * (Math.sqrt(1 - (amount -= 2) * amount) + 1);
},
}),
Elastic: Object.freeze({
In: function (amount) {
if (amount === 0) {
return 0;
}
if (amount === 1) {
return 1;
}
return -Math.pow(2, 10 * (amount - 1)) * Math.sin((amount - 1.1) * 5 * Math.PI);
},
Out: function (amount) {
if (amount === 0) {
return 0;
}
if (amount === 1) {
return 1;
}
return Math.pow(2, -10 * amount) * Math.sin((amount - 0.1) * 5 * Math.PI) + 1;
},
InOut: function (amount) {
if (amount === 0) {
return 0;
}
if (amount === 1) {
return 1;
}
amount *= 2;
if (amount < 1) {
return -0.5 * Math.pow(2, 10 * (amount - 1)) * Math.sin((amount - 1.1) * 5 * Math.PI);
}
return 0.5 * Math.pow(2, -10 * (amount - 1)) * Math.sin((amount - 1.1) * 5 * Math.PI) + 1;
},
}),
Back: Object.freeze({
In: function (amount) {
var s = 1.70158;
return amount === 1 ? 1 : amount * amount * ((s + 1) * amount - s);
},
Out: function (amount) {
var s = 1.70158;
return amount === 0 ? 0 : --amount * amount * ((s + 1) * amount + s) + 1;
},
InOut: function (amount) {
var s = 1.70158 * 1.525;
if ((amount *= 2) < 1) {
return 0.5 * (amount * amount * ((s + 1) * amount - s));
}
return 0.5 * ((amount -= 2) * amount * ((s + 1) * amount + s) + 2);
},
}),
Bounce: Object.freeze({
In: function (amount) {
return 1 - Easing.Bounce.Out(1 - amount);
},
Out: function (amount) {
if (amount < 1 / 2.75) {
return 7.5625 * amount * amount;
}
else if (amount < 2 / 2.75) {
return 7.5625 * (amount -= 1.5 / 2.75) * amount + 0.75;
}
else if (amount < 2.5 / 2.75) {
return 7.5625 * (amount -= 2.25 / 2.75) * amount + 0.9375;
}
else {
return 7.5625 * (amount -= 2.625 / 2.75) * amount + 0.984375;
}
},
InOut: function (amount) {
if (amount < 0.5) {
return Easing.Bounce.In(amount * 2) * 0.5;
}
return Easing.Bounce.Out(amount * 2 - 1) * 0.5 + 0.5;
},
}),
generatePow: function (power) {
if (power === void 0) { power = 4; }
power = power < Number.EPSILON ? Number.EPSILON : power;
power = power > 10000 ? 10000 : power;
return {
In: function (amount) {
return Math.pow(amount, power);
},
Out: function (amount) {
return 1 - Math.pow((1 - amount), power);
},
InOut: function (amount) {
if (amount < 0.5) {
return Math.pow((amount * 2), power) / 2;
}
return (1 - Math.pow((2 - amount * 2), power)) / 2 + 0.5;
},
};
},
});
var now = function () { return performance.now(); };
/**
* Controlling groups of tweens
*
* Using the TWEEN singleton to manage your tweens can cause issues in large apps with many components.
* In these cases, you may want to create your own smaller groups of tween
*/
var Group = /** @class */ (function () {
function Group() {
this._tweens = {};
this._tweensAddedDuringUpdate = {};
}
Group.prototype.getAll = function () {
var _this = this;
return Object.keys(this._tweens).map(function (tweenId) {
return _this._tweens[tweenId];
});
};
Group.prototype.removeAll = function () {
this._tweens = {};
};
Group.prototype.add = function (tween) {
this._tweens[tween.getId()] = tween;
this._tweensAddedDuringUpdate[tween.getId()] = tween;
};
Group.prototype.remove = function (tween) {
delete this._tweens[tween.getId()];
delete this._tweensAddedDuringUpdate[tween.getId()];
};
Group.prototype.update = function (time, preserve) {
if (time === void 0) { time = now(); }
if (preserve === void 0) { preserve = false; }
var tweenIds = Object.keys(this._tweens);
if (tweenIds.length === 0) {
return false;
}
// Tweens are updated in "batches". If you add a new tween during an
// update, then the new tween will be updated in the next batch.
// If you remove a tween during an update, it may or may not be updated.
// However, if the removed tween was added during the current batch,
// then it will not be updated.
while (tweenIds.length > 0) {
this._tweensAddedDuringUpdate = {};
for (var i = 0; i < tweenIds.length; i++) {
var tween = this._tweens[tweenIds[i]];
var autoStart = !preserve;
if (tween && tween.update(time, autoStart) === false && !preserve) {
delete this._tweens[tweenIds[i]];
}
}
tweenIds = Object.keys(this._tweensAddedDuringUpdate);
}
return true;
};
return Group;
}());
/**
*
*/
var Interpolation = {
Linear: function (v, k) {
var m = v.length - 1;
var f = m * k;
var i = Math.floor(f);
var fn = Interpolation.Utils.Linear;
if (k < 0) {
return fn(v[0], v[1], f);
}
if (k > 1) {
return fn(v[m], v[m - 1], m - f);
}
return fn(v[i], v[i + 1 > m ? m : i + 1], f - i);
},
Bezier: function (v, k) {
var b = 0;
var n = v.length - 1;
var pw = Math.pow;
var bn = Interpolation.Utils.Bernstein;
for (var i = 0; i <= n; i++) {
b += pw(1 - k, n - i) * pw(k, i) * v[i] * bn(n, i);
}
return b;
},
CatmullRom: function (v, k) {
var m = v.length - 1;
var f = m * k;
var i = Math.floor(f);
var fn = Interpolation.Utils.CatmullRom;
if (v[0] === v[m]) {
if (k < 0) {
i = Math.floor((f = m * (1 + k)));
}
return fn(v[(i - 1 + m) % m], v[i], v[(i + 1) % m], v[(i + 2) % m], f - i);
}
else {
if (k < 0) {
return v[0] - (fn(v[0], v[0], v[1], v[1], -f) - v[0]);
}
if (k > 1) {
return v[m] - (fn(v[m], v[m], v[m - 1], v[m - 1], f - m) - v[m]);
}
return fn(v[i ? i - 1 : 0], v[i], v[m < i + 1 ? m : i + 1], v[m < i + 2 ? m : i + 2], f - i);
}
},
Utils: {
Linear: function (p0, p1, t) {
return (p1 - p0) * t + p0;
},
Bernstein: function (n, i) {
var fc = Interpolation.Utils.Factorial;
return fc(n) / fc(i) / fc(n - i);
},
Factorial: (function () {
var a = [1];
return function (n) {
var s = 1;
if (a[n]) {
return a[n];
}
for (var i = n; i > 1; i--) {
s *= i;
}
a[n] = s;
return s;
};
})(),
CatmullRom: function (p0, p1, p2, p3, t) {
var v0 = (p2 - p0) * 0.5;
var v1 = (p3 - p1) * 0.5;
var t2 = t * t;
var t3 = t * t2;
return (2 * p1 - 2 * p2 + v0 + v1) * t3 + (-3 * p1 + 3 * p2 - 2 * v0 - v1) * t2 + v0 * t + p1;
},
},
};
/**
* Utils
*/
var Sequence = /** @class */ (function () {
function Sequence() {
}
Sequence.nextId = function () {
return Sequence._nextId++;
};
Sequence._nextId = 0;
return Sequence;
}());
var mainGroup = new Group();
/**
* Tween.js - Licensed under the MIT license
* https://github.com/tweenjs/tween.js
* ----------------------------------------------
*
* See https://github.com/tweenjs/tween.js/graphs/contributors for the full list of contributors.
* Thank you all, you're awesome!
*/
var Tween = /** @class */ (function () {
function Tween(_object, _group) {
if (_group === void 0) { _group = mainGroup; }
this._object = _object;
this._group = _group;
this._isPaused = false;
this._pauseStart = 0;
this._valuesStart = {};
this._valuesEnd = {};
this._valuesStartRepeat = {};
this._duration = 1000;
this._isDynamic = false;
this._initialRepeat = 0;
this._repeat = 0;
this._yoyo = false;
this._isPlaying = false;
this._reversed = false;
this._delayTime = 0;
this._startTime = 0;
this._easingFunction = Easing.Linear.None;
this._interpolationFunction = Interpolation.Linear;
// eslint-disable-next-line
this._chainedTweens = [];
this._onStartCallbackFired = false;
this._onEveryStartCallbackFired = false;
this._id = Sequence.nextId();
this._isChainStopped = false;
this._propertiesAreSetUp = false;
this._goToEnd = false;
}
Tween.prototype.getId = function () {
return this._id;
};
Tween.prototype.isPlaying = function () {
return this._isPlaying;
};
Tween.prototype.isPaused = function () {
return this._isPaused;
};
Tween.prototype.getDuration = function () {
return this._duration;
};
Tween.prototype.to = function (target, duration) {
if (duration === void 0) { duration = 1000; }
if (this._isPlaying)
throw new Error('Can not call Tween.to() while Tween is already started or paused. Stop the Tween first.');
this._valuesEnd = target;
this._propertiesAreSetUp = false;
this._duration = duration < 0 ? 0 : duration;
return this;
};
Tween.prototype.duration = function (duration) {
if (duration === void 0) { duration = 1000; }
this._duration = duration < 0 ? 0 : duration;
return this;
};
Tween.prototype.dynamic = function (dynamic) {
if (dynamic === void 0) { dynamic = false; }
this._isDynamic = dynamic;
return this;
};
Tween.prototype.start = function (time, overrideStartingValues) {
if (time === void 0) { time = now(); }
if (overrideStartingValues === void 0) { overrideStartingValues = false; }
if (this._isPlaying) {
return this;
}
// eslint-disable-next-line
this._group && this._group.add(this);
this._repeat = this._initialRepeat;
if (this._reversed) {
// If we were reversed (f.e. using the yoyo feature) then we need to
// flip the tween direction back to forward.
this._reversed = false;
for (var property in this._valuesStartRepeat) {
this._swapEndStartRepeatValues(property);
this._valuesStart[property] = this._valuesStartRepeat[property];
}
}
this._isPlaying = true;
this._isPaused = false;
this._onStartCallbackFired = false;
this._onEveryStartCallbackFired = false;
this._isChainStopped = false;
this._startTime = time;
this._startTime += this._delayTime;
if (!this._propertiesAreSetUp || overrideStartingValues) {
this._propertiesAreSetUp = true;
// If dynamic is not enabled, clone the end values instead of using the passed-in end values.
if (!this._isDynamic) {
var tmp = {};
for (var prop in this._valuesEnd)
tmp[prop] = this._valuesEnd[prop];
this._valuesEnd = tmp;
}
this._setupProperties(this._object, this._valuesStart, this._valuesEnd, this._valuesStartRepeat, overrideStartingValues);
}
return this;
};
Tween.prototype.startFromCurrentValues = function (time) {
return this.start(time, true);
};
Tween.prototype._setupProperties = function (_object, _valuesStart, _valuesEnd, _valuesStartRepeat, overrideStartingValues) {
for (var property in _valuesEnd) {
var startValue = _object[property];
var startValueIsArray = Array.isArray(startValue);
var propType = startValueIsArray ? 'array' : typeof startValue;
var isInterpolationList = !startValueIsArray && Array.isArray(_valuesEnd[property]);
// If `to()` specifies a property that doesn't exist in the source object,
// we should not set that property in the object
if (propType === 'undefined' || propType === 'function') {
continue;
}
// Check if an Array was provided as property value
if (isInterpolationList) {
var endValues = _valuesEnd[property];
if (endValues.length === 0) {
continue;
}
// Handle an array of relative values.
// Creates a local copy of the Array with the start value at the front
var temp = [startValue];
for (var i = 0, l = endValues.length; i < l; i += 1) {
var value = this._handleRelativeValue(startValue, endValues[i]);
if (isNaN(value)) {
isInterpolationList = false;
console.warn('Found invalid interpolation list. Skipping.');
break;
}
temp.push(value);
}
if (isInterpolationList) {
// if (_valuesStart[property] === undefined) { // handle end values only the first time. NOT NEEDED? setupProperties is now guarded by _propertiesAreSetUp.
_valuesEnd[property] = temp;
// }
}
}
// handle the deepness of the values
if ((propType === 'object' || startValueIsArray) && startValue && !isInterpolationList) {
_valuesStart[property] = startValueIsArray ? [] : {};
var nestedObject = startValue;
for (var prop in nestedObject) {
_valuesStart[property][prop] = nestedObject[prop];
}
// TODO? repeat nested values? And yoyo? And array values?
_valuesStartRepeat[property] = startValueIsArray ? [] : {};
var endValues = _valuesEnd[property];
// If dynamic is not enabled, clone the end values instead of using the passed-in end values.
if (!this._isDynamic) {
var tmp = {};
for (var prop in endValues)
tmp[prop] = endValues[prop];
_valuesEnd[property] = endValues = tmp;
}
this._setupProperties(nestedObject, _valuesStart[property], endValues, _valuesStartRepeat[property], overrideStartingValues);
}
else {
// Save the starting value, but only once unless override is requested.
if (typeof _valuesStart[property] === 'undefined' || overrideStartingValues) {
_valuesStart[property] = startValue;
}
if (!startValueIsArray) {
// eslint-disable-next-line
// @ts-ignore FIXME?
_valuesStart[property] *= 1.0; // Ensures we're using numbers, not strings
}
if (isInterpolationList) {
// eslint-disable-next-line
// @ts-ignore FIXME?
_valuesStartRepeat[property] = _valuesEnd[property].slice().reverse();
}
else {
_valuesStartRepeat[property] = _valuesStart[property] || 0;
}
}
}
};
Tween.prototype.stop = function () {
if (!this._isChainStopped) {
this._isChainStopped = true;
this.stopChainedTweens();
}
if (!this._isPlaying) {
return this;
}
// eslint-disable-next-line
this._group && this._group.remove(this);
this._isPlaying = false;
this._isPaused = false;
if (this._onStopCallback) {
this._onStopCallback(this._object);
}
return this;
};
Tween.prototype.end = function () {
this._goToEnd = true;
this.update(Infinity);
return this;
};
Tween.prototype.pause = function (time) {
if (time === void 0) { time = now(); }
if (this._isPaused || !this._isPlaying) {
return this;
}
this._isPaused = true;
this._pauseStart = time;
// eslint-disable-next-line
this._group && this._group.remove(this);
return this;
};
Tween.prototype.resume = function (time) {
if (time === void 0) { time = now(); }
if (!this._isPaused || !this._isPlaying) {
return this;
}
this._isPaused = false;
this._startTime += time - this._pauseStart;
this._pauseStart = 0;
// eslint-disable-next-line
this._group && this._group.add(this);
return this;
};
Tween.prototype.stopChainedTweens = function () {
for (var i = 0, numChainedTweens = this._chainedTweens.length; i < numChainedTweens; i++) {
this._chainedTweens[i].stop();
}
return this;
};
Tween.prototype.group = function (group) {
if (group === void 0) { group = mainGroup; }
this._group = group;
return this;
};
Tween.prototype.delay = function (amount) {
if (amount === void 0) { amount = 0; }
this._delayTime = amount;
return this;
};
Tween.prototype.repeat = function (times) {
if (times === void 0) { times = 0; }
this._initialRepeat = times;
this._repeat = times;
return this;
};
Tween.prototype.repeatDelay = function (amount) {
this._repeatDelayTime = amount;
return this;
};
Tween.prototype.yoyo = function (yoyo) {
if (yoyo === void 0) { yoyo = false; }
this._yoyo = yoyo;
return this;
};
Tween.prototype.easing = function (easingFunction) {
if (easingFunction === void 0) { easingFunction = Easing.Linear.None; }
this._easingFunction = easingFunction;
return this;
};
Tween.prototype.interpolation = function (interpolationFunction) {
if (interpolationFunction === void 0) { interpolationFunction = Interpolation.Linear; }
this._interpolationFunction = interpolationFunction;
return this;
};
// eslint-disable-next-line
Tween.prototype.chain = function () {
var tweens = [];
for (var _i = 0; _i < arguments.length; _i++) {
tweens[_i] = arguments[_i];
}
this._chainedTweens = tweens;
return this;
};
Tween.prototype.onStart = function (callback) {
this._onStartCallback = callback;
return this;
};
Tween.prototype.onEveryStart = function (callback) {
this._onEveryStartCallback = callback;
return this;
};
Tween.prototype.onUpdate = function (callback) {
this._onUpdateCallback = callback;
return this;
};
Tween.prototype.onRepeat = function (callback) {
this._onRepeatCallback = callback;
return this;
};
Tween.prototype.onComplete = function (callback) {
this._onCompleteCallback = callback;
return this;
};
Tween.prototype.onStop = function (callback) {
this._onStopCallback = callback;
return this;
};
/**
* @returns true if the tween is still playing after the update, false
* otherwise (calling update on a paused tween still returns true because
* it is still playing, just paused).
*/
Tween.prototype.update = function (time, autoStart) {
var _this = this;
var _a;
if (time === void 0) { time = now(); }
if (autoStart === void 0) { autoStart = true; }
if (this._isPaused)
return true;
var property;
var endTime = this._startTime + this._duration;
if (!this._goToEnd && !this._isPlaying) {
if (time > endTime)
return false;
if (autoStart)
this.start(time, true);
}
this._goToEnd = false;
if (time < this._startTime) {
return true;
}
if (this._onStartCallbackFired === false) {
if (this._onStartCallback) {
this._onStartCallback(this._object);
}
this._onStartCallbackFired = true;
}
if (this._onEveryStartCallbackFired === false) {
if (this._onEveryStartCallback) {
this._onEveryStartCallback(this._object);
}
this._onEveryStartCallbackFired = true;
}
var elapsedTime = time - this._startTime;
var durationAndDelay = this._duration + ((_a = this._repeatDelayTime) !== null && _a !== void 0 ? _a : this._delayTime);
var totalTime = this._duration + this._repeat * durationAndDelay;
var calculateElapsedPortion = function () {
if (_this._duration === 0)
return 1;
if (elapsedTime > totalTime) {
return 1;
}
var timesRepeated = Math.trunc(elapsedTime / durationAndDelay);
var timeIntoCurrentRepeat = elapsedTime - timesRepeated * durationAndDelay;
// TODO use %?
// const timeIntoCurrentRepeat = elapsedTime % durationAndDelay
var portion = Math.min(timeIntoCurrentRepeat / _this._duration, 1);
if (portion === 0 && elapsedTime === _this._duration) {
return 1;
}
return portion;
};
var elapsed = calculateElapsedPortion();
var value = this._easingFunction(elapsed);
// properties transformations
this._updateProperties(this._object, this._valuesStart, this._valuesEnd, value);
if (this._onUpdateCallback) {
this._onUpdateCallback(this._object, elapsed);
}
if (this._duration === 0 || elapsedTime >= this._duration) {
if (this._repeat > 0) {
var completeCount = Math.min(Math.trunc((elapsedTime - this._duration) / durationAndDelay) + 1, this._repeat);
if (isFinite(this._repeat)) {
this._repeat -= completeCount;
}
// Reassign starting values, restart by making startTime = now
for (property in this._valuesStartRepeat) {
if (!this._yoyo && typeof this._valuesEnd[property] === 'string') {
this._valuesStartRepeat[property] =
// eslint-disable-next-line
// @ts-ignore FIXME?
this._valuesStartRepeat[property] + parseFloat(this._valuesEnd[property]);
}
if (this._yoyo) {
this._swapEndStartRepeatValues(property);
}
this._valuesStart[property] = this._valuesStartRepeat[property];
}
if (this._yoyo) {
this._reversed = !this._reversed;
}
this._startTime += durationAndDelay * completeCount;
if (this._onRepeatCallback) {
this._onRepeatCallback(this._object);
}
this._onEveryStartCallbackFired = false;
return true;
}
else {
if (this._onCompleteCallback) {
this._onCompleteCallback(this._object);
}
for (var i = 0, numChainedTweens = this._chainedTweens.length; i < numChainedTweens; i++) {
// Make the chained tweens start exactly at the time they should,
// even if the `update()` method was called way past the duration of the tween
this._chainedTweens[i].start(this._startTime + this._duration, false);
}
this._isPlaying = false;
return false;
}
}
return true;
};
Tween.prototype._updateProperties = function (_object, _valuesStart, _valuesEnd, value) {
for (var property in _valuesEnd) {
// Don't update properties that do not exist in the source object
if (_valuesStart[property] === undefined) {
continue;
}
var start = _valuesStart[property] || 0;
var end = _valuesEnd[property];
var startIsArray = Array.isArray(_object[property]);
var endIsArray = Array.isArray(end);
var isInterpolationList = !startIsArray && endIsArray;
if (isInterpolationList) {
_object[property] = this._interpolationFunction(end, value);
}
else if (typeof end === 'object' && end) {
// eslint-disable-next-line
// @ts-ignore FIXME?
this._updateProperties(_object[property], start, end, value);
}
else {
// Parses relative end values with start as base (e.g.: +10, -3)
end = this._handleRelativeValue(start, end);
// Protect against non numeric properties.
if (typeof end === 'number') {
// eslint-disable-next-line
// @ts-ignore FIXME?
_object[property] = start + (end - start) * value;
}
}
}
};
Tween.prototype._handleRelativeValue = function (start, end) {
if (typeof end !== 'string') {
return end;
}
if (end.charAt(0) === '+' || end.charAt(0) === '-') {
return start + parseFloat(end);
}
return parseFloat(end);
};
Tween.prototype._swapEndStartRepeatValues = function (property) {
var tmp = this._valuesStartRepeat[property];
var endValue = this._valuesEnd[property];
if (typeof endValue === 'string') {
this._valuesStartRepeat[property] = this._valuesStartRepeat[property] + parseFloat(endValue);
}
else {
this._valuesStartRepeat[property] = this._valuesEnd[property];
}
this._valuesEnd[property] = tmp;
};
return Tween;
}());
/**
* Controlling groups of tweens
*
* Using the TWEEN singleton to manage your tweens can cause issues in large apps with many components.
* In these cases, you may want to create your own smaller groups of tweens.
*/
var TWEEN = mainGroup;
// This is the best way to export things in a way that's compatible with both ES
// Modules and CommonJS, without build hacks, and so as not to break the
// existing API.
// https://github.com/rollup/rollup/issues/1961#issuecomment-423037881
TWEEN.getAll.bind(TWEEN);
TWEEN.removeAll.bind(TWEEN);
TWEEN.add.bind(TWEEN);
TWEEN.remove.bind(TWEEN);
var update = TWEEN.update.bind(TWEEN);
function _iterableToArrayLimit$1(r, l) {
var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"];
if (null != t) {
var e,
n,
i,
u,
a = [],
f = !0,
o = !1;
try {
if (i = (t = t.call(r)).next, 0 === l) {
if (Object(t) !== t) return;
f = !1;
} else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0);
} catch (r) {
o = !0, n = r;
} finally {
try {
if (!f && null != t.return && (u = t.return(), Object(u) !== u)) return;
} finally {
if (o) throw n;
}
}
return a;
}
}
function _classCallCheck$1(instance, Constructor) {
if (!(instance instanceof Constructor)) {
throw new TypeError("Cannot call a class as a function");
}
}
function _defineProperties$1(target, props) {
for (var i = 0; i < props.length; i++) {
var descriptor = props[i];
descriptor.enumerable = descriptor.enumerable || false;
descriptor.configurable = true;
if ("value" in descriptor) descriptor.writable = true;
Object.defineProperty(target, _toPropertyKey$2(descriptor.key), descriptor);
}
}
function _createClass$1(Constructor, protoProps, staticProps) {
if (protoProps) _defineProperties$1(Constructor.prototype, protoProps);
if (staticProps) _defineProperties$1(Constructor, staticProps);
Object.defineProperty(Constructor, "prototype", {
writable: false
});
return Constructor;
}
function _slicedToArray$1(arr, i) {
return _arrayWithHoles$1(arr) || _iterableToArrayLimit$1(arr, i) || _unsupportedIterableToArray$2(arr, i) || _nonIterableRest$1();
}
function _arrayWithHoles$1(arr) {
if (Array.isArray(arr)) return arr;
}
function _unsupportedIterableToArray$2(o, minLen) {
if (!o) return;
if (typeof o === "string") return _arrayLikeToArray$2(o, minLen);
var n = Object.prototype.toString.call(o).slice(8, -1);
if (n === "Object" && o.constructor) n = o.constructor.name;
if (n === "Map" || n === "Set") return Array.from(o);
if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray$2(o, minLen);
}
function _arrayLikeToArray$2(arr, len) {
if (len == null || len > arr.length) len = arr.length;
for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
return arr2;
}
function _nonIterableRest$1() {
throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}
function _toPrimitive$2(input, hint) {
if (typeof input !== "object" || input === null) return input;
var prim = input[Symbol.toPrimitive];
if (prim !== undefined) {
var res = prim.call(input, hint || "default");
if (typeof res !== "object") return res;
throw new TypeError("@@toPrimitive must return a primitive value.");
}
return (hint === "string" ? String : Number)(input);
}
function _toPropertyKey$2(arg) {
var key = _toPrimitive$2(arg, "string");
return typeof key === "symbol" ? key : String(key);
}
var Prop = /*#__PURE__*/_createClass$1(function Prop(name, _ref) {
var _ref$default = _ref["default"],
defaultVal = _ref$default === void 0 ? null : _ref$default,
_ref$triggerUpdate = _ref.triggerUpdate,
triggerUpdate = _ref$triggerUpdate === void 0 ? true : _ref$triggerUpdate,
_ref$onChange = _ref.onChange,
onChange = _ref$onChange === void 0 ? function (newVal, state) {} : _ref$onChange;
_classCallCheck$1(this, Prop);
this.name = name;
this.defaultVal = defaultVal;
this.triggerUpdate = triggerUpdate;
this.onChange = onChange;
});
function index$3 (_ref2) {
var _ref2$stateInit = _ref2.stateInit,
stateInit = _ref2$stateInit === void 0 ? function () {
return {};
} : _ref2$stateInit,
_ref2$props = _ref2.props,
rawProps = _ref2$props === void 0 ? {} : _ref2$props,
_ref2$methods = _ref2.methods,
methods = _ref2$methods === void 0 ? {} : _ref2$methods,
_ref2$aliases = _ref2.aliases,
aliases = _ref2$aliases === void 0 ? {} : _ref2$aliases,
_ref2$init = _ref2.init,
initFn = _ref2$init === void 0 ? function () {} : _ref2$init,
_ref2$update = _ref2.update,
updateFn = _ref2$update === void 0 ? function () {} : _ref2$update;
// Parse props into Prop instances
var props = Object.keys(rawProps).map(function (propName) {
return new Prop(propName, rawProps[propName]);
});
return function () {
var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
// Holds component state
var state = Object.assign({}, stateInit instanceof Function ? stateInit(options) : stateInit,
// Support plain objects for backwards compatibility
{
initialised: false
});
// keeps track of which props triggered an update
var changedProps = {};
// Component constructor
function comp(nodeElement) {
initStatic(nodeElement, options);
digest();
return comp;
}
var initStatic = function initStatic(nodeElement, options) {
initFn.call(comp, nodeElement, state, options);
state.initialised = true;
};
var digest = debounce(function () {
if (!state.initialised) {
return;
}
updateFn.call(comp, state, changedProps);
changedProps = {};
}, 1);
// Getter/setter methods
props.forEach(function (prop) {
comp[prop.name] = getSetProp(prop);
function getSetProp(_ref3) {
var prop = _ref3.name,
_ref3$triggerUpdate = _ref3.triggerUpdate,
redigest = _ref3$triggerUpdate === void 0 ? false : _ref3$triggerUpdate,
_ref3$onChange = _ref3.onChange,
onChange = _ref3$onChange === void 0 ? function (newVal, state) {} : _ref3$onChange,
_ref3$defaultVal = _ref3.defaultVal,
defaultVal = _ref3$defaultVal === void 0 ? null : _ref3$defaultVal;
return function (_) {
var curVal = state[prop];
if (!arguments.length) {
return curVal;
} // Getter mode
var val = _ === undefined ? defaultVal : _; // pick default if value passed is undefined
state[prop] = val;
onChange.call(comp, val, state, curVal);
// track changed props
!changedProps.hasOwnProperty(prop) && (changedProps[prop] = curVal);
if (redigest) {
digest();
}
return comp;
};
}
});
// Other methods
Object.keys(methods).forEach(function (methodName) {
comp[methodName] = function () {
var _methods$methodName;
for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
return (_methods$methodName = methods[methodName]).call.apply(_methods$methodName, [comp, state].concat(args));
};
});
// Link aliases
Object.entries(aliases).forEach(function (_ref4) {
var _ref5 = _slicedToArray$1(_ref4, 2),
alias = _ref5[0],
target = _ref5[1];
return comp[alias] = comp[target];
});
// Reset all component props to their default value
comp.resetProps = function () {
props.forEach(function (prop) {
comp[prop.name](prop.defaultVal);
});
return comp;
};
//
comp.resetProps(); // Apply all prop defaults
state._rerender = digest; // Expose digest method
return comp;
};
}
var index$2 = (function (p) {
return typeof p === 'function' ? p // fn
: typeof p === 'string' ? function (obj) {
return obj[p];
} // property name
: function (obj) {
return p;
};
}); // constant
// This file is autogenerated. It's used to publish ESM to npm.
function _typeof(obj) {
"@babel/helpers - typeof";
return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) {
return typeof obj;
} : function (obj) {
return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
}, _typeof(obj);
}
// https://github.com/bgrins/TinyColor
// Brian Grinstead, MIT License
var trimLeft = /^\s+/;
var trimRight = /\s+$/;
function tinycolor(color, opts) {
color = color ? color : "";
opts = opts || {};
// If input is already a tinycolor, return itself
if (color instanceof tinycolor) {
return color;
}
// If we are called as a function, call using new instead
if (!(this instanceof tinycolor)) {
return new tinycolor(color, opts);
}
var rgb = inputToRGB(color);
this._originalInput = color, this._r = rgb.r, this._g = rgb.g, this._b = rgb.b, this._a = rgb.a, this._roundA = Math.round(100 * this._a) / 100, this._format = opts.format || rgb.format;
this._gradientType = opts.gradientType;
// Don't let the range of [0,255] come back in [0,1].
// Potentially lose a little bit of precision here, but will fix issues where
// .5 gets interpreted as half of the total, instead of half of 1
// If it was supposed to be 128, this was already taken care of by `inputToRgb`
if (this._r < 1) this._r = Math.round(this._r);
if (this._g < 1) this._g = Math.round(this._g);
if (this._b < 1) this._b = Math.round(this._b);
this._ok = rgb.ok;
}
tinycolor.prototype = {
isDark: function isDark() {
return this.getBrightness() < 128;
},
isLight: function isLight() {
return !this.isDark();
},
isValid: function isValid() {
return this._ok;
},
getOriginalInput: function getOriginalInput() {
return this._originalInput;
},
getFormat: function getFormat() {
return this._format;
},
getAlpha: function getAlpha() {
return this._a;
},
getBrightness: function getBrightness() {
//http://www.w3.org/TR/AERT#color-contrast
var rgb = this.toRgb();
return (rgb.r * 299 + rgb.g * 587 + rgb.b * 114) / 1000;
},
getLuminance: function getLuminance() {
//http://www.w3.org/TR/2008/REC-WCAG20-20081211/#relativeluminancedef
var rgb = this.toRgb();
var RsRGB, GsRGB, BsRGB, R, G, B;
RsRGB = rgb.r / 255;
GsRGB = rgb.g / 255;
BsRGB = rgb.b / 255;
if (RsRGB <= 0.03928) R = RsRGB / 12.92;else R = Math.pow((RsRGB + 0.055) / 1.055, 2.4);
if (GsRGB <= 0.03928) G = GsRGB / 12.92;else G = Math.pow((GsRGB + 0.055) / 1.055, 2.4);
if (BsRGB <= 0.03928) B = BsRGB / 12.92;else B = Math.pow((BsRGB + 0.055) / 1.055, 2.4);
return 0.2126 * R + 0.7152 * G + 0.0722 * B;
},
setAlpha: function setAlpha(value) {
this._a = boundAlpha(value);
this._roundA = Math.round(100 * this._a) / 100;
return this;
},
toHsv: function toHsv() {
var hsv = rgbToHsv(this._r, this._g, this._b);
return {
h: hsv.h * 360,
s: hsv.s,
v: hsv.v,
a: this._a
};
},
toHsvString: function toHsvString() {
var hsv = rgbToHsv(this._r, this._g, this._b);
var h = Math.round(hsv.h * 360),
s = Math.round(hsv.s * 100),
v = Math.round(hsv.v * 100);
return this._a == 1 ? "hsv(" + h + ", " + s + "%, " + v + "%)" : "hsva(" + h + ", " + s + "%, " + v + "%, " + this._roundA + ")";
},
toHsl: function toHsl() {
var hsl = rgbToHsl(this._r, this._g, this._b);
return {
h: hsl.h * 360,
s: hsl.s,
l: hsl.l,
a: this._a
};
},
toHslString: function toHslString() {
var hsl = rgbToHsl(this._r, this._g, this._b);
var h = Math.round(hsl.h * 360),
s = Math.round(hsl.s * 100),
l = Math.round(hsl.l * 100);
return this._a == 1 ? "hsl(" + h + ", " + s + "%, " + l + "%)" : "hsla(" + h + ", " + s + "%, " + l + "%, " + this._roundA + ")";
},
toHex: function toHex(allow3Char) {
return rgbToHex(this._r, this._g, this._b, allow3Char);
},
toHexString: function toHexString(allow3Char) {
return "#" + this.toHex(allow3Char);
},
toHex8: function toHex8(allow4Char) {
return rgbaToHex(this._r, this._g, this._b, this._a, allow4Char);
},
toHex8String: function toHex8String(allow4Char) {
return "#" + this.toHex8(allow4Char);
},
toRgb: function toRgb() {
return {
r: Math.round(this._r),
g: Math.round(this._g),
b: Math.round(this._b),
a: this._a
};
},
toRgbString: function toRgbString() {
return this._a == 1 ? "rgb(" + Math.round(this._r) + ", " + Math.round(this._g) + ", " + Math.round(this._b) + ")" : "rgba(" + Math.round(this._r) + ", " + Math.round(this._g) + ", " + Math.round(this._b) + ", " + this._roundA + ")";
},
toPercentageRgb: function toPercentageRgb() {
return {
r: Math.round(bound01(this._r, 255) * 100) + "%",
g: Math.round(bound01(this._g, 255) * 100) + "%",
b: Math.round(bound01(this._b, 255) * 100) + "%",
a: this._a
};
},
toPercentageRgbString: function toPercentageRgbString() {
return this._a == 1 ? "rgb(" + Math.round(bound01(this._r, 255) * 100) + "%, " + Math.round(bound01(this._g, 255) * 100) + "%, " + Math.round(bound01(this._b, 255) * 100) + "%)" : "rgba(" + Math.round(bound01(this._r, 255) * 100) + "%, " + Math.round(bound01(this._g, 255) * 100) + "%, " + Math.round(bound01(this._b, 255) * 100) + "%, " + this._roundA + ")";
},
toName: function toName() {
if (this._a === 0) {
return "transparent";
}
if (this._a < 1) {
return false;
}
return hexNames[rgbToHex(this._r, this._g, this._b, true)] || false;
},
toFilter: function toFilter(secondColor) {
var hex8String = "#" + rgbaToArgbHex(this._r, this._g, this._b, this._a);
var secondHex8String = hex8String;
var gradientType = this._gradientType ? "GradientType = 1, " : "";
if (secondColor) {
var s = tinycolor(secondColor);
secondHex8String = "#" + rgbaToArgbHex(s._r, s._g, s._b, s._a);
}
return "progid:DXImageTransform.Microsoft.gradient(" + gradientType + "startColorstr=" + hex8String + ",endColorstr=" + secondHex8String + ")";
},
toString: function toString(format) {
var formatSet = !!format;
format = format || this._format;
var formattedString = false;
var hasAlpha = this._a < 1 && this._a >= 0;
var needsAlphaFormat = !formatSet && hasAlpha && (format === "hex" || format === "hex6" || format === "hex3" || format === "hex4" || format === "hex8" || format === "name");
if (needsAlphaFormat) {
// Special case for "transparent", all other non-alpha formats
// will return rgba when there is transparency.
if (format === "name" && this._a === 0) {
return this.toName();
}
return this.toRgbString();
}
if (format === "rgb") {
formattedString = this.toRgbString();
}
if (format === "prgb") {
formattedString = this.toPercentageRgbString();
}
if (format === "hex" || format === "hex6") {
formattedString = this.toHexString();
}
if (format === "hex3") {
formattedString = this.toHexString(true);
}
if (format === "hex4") {
formattedString = this.toHex8String(true);
}
if (format === "hex8") {
formattedString = this.toHex8String();
}
if (format === "name") {
formattedString = this.toName();
}
if (format === "hsl") {
formattedString = this.toHslString();
}
if (format === "hsv") {
formattedString = this.toHsvString();
}
return formattedString || this.toHexString();
},
clone: function clone() {
return tinycolor(this.toString());
},
_applyModification: function _applyModification(fn, args) {
var color = fn.apply(null, [this].concat([].slice.call(args)));
this._r = color._r;
this._g = color._g;
this._b = color._b;
this.setAlpha(color._a);
return this;
},
lighten: function lighten() {
return this._applyModification(_lighten, arguments);
},
brighten: function brighten() {
return this._applyModification(_brighten, arguments);
},
darken: function darken() {
return this._applyModification(_darken, arguments);
},
desaturate: function desaturate() {
return this._applyModification(_desaturate, arguments);
},
saturate: function saturate() {
return this._applyModification(_saturate, arguments);
},
greyscale: function greyscale() {
return this._applyModification(_greyscale, arguments);
},
spin: function spin() {
return this._applyModification(_spin, arguments);
},
_applyCombination: function _applyCombination(fn, args) {
return fn.apply(null, [this].concat([].slice.call(args)));
},
analogous: function analogous() {
return this._applyCombination(_analogous, arguments);
},
complement: function complement() {
return this._applyCombination(_complement, arguments);
},
monochromatic: function monochromatic() {
return this._applyCombination(_monochromatic, arguments);
},
splitcomplement: function splitcomplement() {
return this._applyCombination(_splitcomplement, arguments);
},
// Disabled until https://github.com/bgrins/TinyColor/issues/254
// polyad: function (number) {
// return this._applyCombination(polyad, [number]);
// },
triad: function triad() {
return this._applyCombination(polyad, [3]);
},
tetrad: function tetrad() {
return this._applyCombination(polyad, [4]);
}
};
// If input is an object, force 1 into "1.0" to handle ratios properly
// String input requires "1.0" as input, so 1 will be treated as 1
tinycolor.fromRatio = function (color, opts) {
if (_typeof(color) == "object") {
var newColor = {};
for (var i in color) {
if (color.hasOwnProperty(i)) {
if (i === "a") {
newColor[i] = color[i];
} else {
newColor[i] = convertToPercentage(color[i]);
}
}
}
color = newColor;
}
return tinycolor(color, opts);
};
// Given a string or object, convert that input to RGB
// Possible string inputs:
//
// "red"
// "#f00" or "f00"
// "#ff0000" or "ff0000"
// "#ff000000" or "ff000000"
// "rgb 255 0 0" or "rgb (255, 0, 0)"
// "rgb 1.0 0 0" or "rgb (1, 0, 0)"
// "rgba (255, 0, 0, 1)" or "rgba 255, 0, 0, 1"
// "rgba (1.0, 0, 0, 1)" or "rgba 1.0, 0, 0, 1"
// "hsl(0, 100%, 50%)" or "hsl 0 100% 50%"
// "hsla(0, 100%, 50%, 1)" or "hsla 0 100% 50%, 1"
// "hsv(0, 100%, 100%)" or "hsv 0 100% 100%"
//
function inputToRGB(color) {
var rgb = {
r: 0,
g: 0,
b: 0
};
var a = 1;
var s = null;
var v = null;
var l = null;
var ok = false;
var format = false;
if (typeof color == "string") {
color = stringInputToObject(color);
}
if (_typeof(color) == "object") {
if (isValidCSSUnit(color.r) && isValidCSSUnit(color.g) && isValidCSSUnit(color.b)) {
rgb = rgbToRgb(color.r, color.g, color.b);
ok = true;
format = String(color.r).substr(-1) === "%" ? "prgb" : "rgb";
} else if (isValidCSSUnit(color.h) && isValidCSSUnit(color.s) && isValidCSSUnit(color.v)) {
s = convertToPercentage(color.s);
v = convertToPercentage(color.v);
rgb = hsvToRgb(color.h, s, v);
ok = true;
format = "hsv";
} else if (isValidCSSUnit(color.h) && isValidCSSUnit(color.s) && isValidCSSUnit(color.l)) {
s = convertToPercentage(color.s);
l = convertToPercentage(color.l);
rgb = hslToRgb(color.h, s, l);
ok = true;
format = "hsl";
}
if (color.hasOwnProperty("a")) {
a = color.a;
}
}
a = boundAlpha(a);
return {
ok: ok,
format: color.format || format,
r: Math.min(255, Math.max(rgb.r, 0)),
g: Math.min(255, Math.max(rgb.g, 0)),
b: Math.min(255, Math.max(rgb.b, 0)),
a: a
};
}
// Conversion Functions
// --------------------
// `rgbToHsl`, `rgbToHsv`, `hslToRgb`, `hsvToRgb` modified from:
// <http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript>
// `rgbToRgb`
// Handle bounds / percentage checking to conform to CSS color spec
// <http://www.w3.org/TR/css3-color/>
// *Assumes:* r, g, b in [0, 255] or [0, 1]
// *Returns:* { r, g, b } in [0, 255]
function rgbToRgb(r, g, b) {
return {
r: bound01(r, 255) * 255,
g: bound01(g, 255) * 255,
b: bound01(b, 255) * 255
};
}
// `rgbToHsl`
// Converts an RGB color value to HSL.
// *Assumes:* r, g, and b are contained in [0, 255] or [0, 1]
// *Returns:* { h, s, l } in [0,1]
function rgbToHsl(r, g, b) {
r = bound01(r, 255);
g = bound01(g, 255);
b = bound01(b, 255);
var max = Math.max(r, g, b),
min = Math.min(r, g, b);
var h,
s,
l = (max + min) / 2;
if (max == min) {
h = s = 0; // achromatic
} else {
var d = max - min;
s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
switch (max) {
case r:
h = (g - b) / d + (g < b ? 6 : 0);
break;
case g:
h = (b - r) / d + 2;
break;
case b:
h = (r - g) / d + 4;
break;
}
h /= 6;
}
return {
h: h,
s: s,
l: l
};
}
// `hslToRgb`
// Converts an HSL color value to RGB.
// *Assumes:* h is contained in [0, 1] or [0, 360] and s and l are contained [0, 1] or [0, 100]
// *Returns:* { r, g, b } in the set [0, 255]
function hslToRgb(h, s, l) {
var r, g, b;
h = bound01(h, 360);
s = bound01(s, 100);
l = bound01(l, 100);
function hue2rgb(p, q, t) {
if (t < 0) t += 1;
if (t > 1) t -= 1;
if (t < 1 / 6) return p + (q - p) * 6 * t;
if (t < 1 / 2) return q;
if (t < 2 / 3) return p + (q - p) * (2 / 3 - t) * 6;
return p;
}
if (s === 0) {
r = g = b = l; // achromatic
} else {
var q = l < 0.5 ? l * (1 + s) : l + s - l * s;
var p = 2 * l - q;
r = hue2rgb(p, q, h + 1 / 3);
g = hue2rgb(p, q, h);
b = hue2rgb(p, q, h - 1 / 3);
}
return {
r: r * 255,
g: g * 255,
b: b * 255
};
}
// `rgbToHsv`
// Converts an RGB color value to HSV
// *Assumes:* r, g, and b are contained in the set [0, 255] or [0, 1]
// *Returns:* { h, s, v } in [0,1]
function rgbToHsv(r, g, b) {
r = bound01(r, 255);
g = bound01(g, 255);
b = bound01(b, 255);
var max = Math.max(r, g, b),
min = Math.min(r, g, b);
var h,
s,
v = max;
var d = max - min;
s = max === 0 ? 0 : d / max;
if (max == min) {
h = 0; // achromatic
} else {
switch (max) {
case r:
h = (g - b) / d + (g < b ? 6 : 0);
break;
case g:
h = (b - r) / d + 2;
break;
case b:
h = (r - g) / d + 4;
break;
}
h /= 6;
}
return {
h: h,
s: s,
v: v
};
}
// `hsvToRgb`
// Converts an HSV color value to RGB.
// *Assumes:* h is contained in [0, 1] or [0, 360] and s and v are contained in [0, 1] or [0, 100]
// *Returns:* { r, g, b } in the set [0, 255]
function hsvToRgb(h, s, v) {
h = bound01(h, 360) * 6;
s = bound01(s, 100);
v = bound01(v, 100);
var i = Math.floor(h),
f = h - i,
p = v * (1 - s),
q = v * (1 - f * s),
t = v * (1 - (1 - f) * s),
mod = i % 6,
r = [v, q, p, p, t, v][mod],
g = [t, v, v, q, p, p][mod],
b = [p, p, t, v, v, q][mod];
return {
r: r * 255,
g: g * 255,
b: b * 255
};
}
// `rgbToHex`
// Converts an RGB color to hex
// Assumes r, g, and b are contained in the set [0, 255]
// Returns a 3 or 6 character hex
function rgbToHex(r, g, b, allow3Char) {
var hex = [pad2(Math.round(r).toString(16)), pad2(Math.round(g).toString(16)), pad2(Math.round(b).toString(16))];
// Return a 3 character hex if possible
if (allow3Char && hex[0].charAt(0) == hex[0].charAt(1) && hex[1].charAt(0) == hex[1].charAt(1) && hex[2].charAt(0) == hex[2].charAt(1)) {
return hex[0].charAt(0) + hex[1].charAt(0) + hex[2].charAt(0);
}
return hex.join("");
}
// `rgbaToHex`
// Converts an RGBA color plus alpha transparency to hex
// Assumes r, g, b are contained in the set [0, 255] and
// a in [0, 1]. Returns a 4 or 8 character rgba hex
function rgbaToHex(r, g, b, a, allow4Char) {
var hex = [pad2(Math.round(r).toString(16)), pad2(Math.round(g).toString(16)), pad2(Math.round(b).toString(16)), pad2(convertDecimalToHex(a))];
// Return a 4 character hex if possible
if (allow4Char && hex[0].charAt(0) == hex[0].charAt(1) && hex[1].charAt(0) == hex[1].charAt(1) && hex[2].charAt(0) == hex[2].charAt(1) && hex[3].charAt(0) == hex[3].charAt(1)) {
return hex[0].charAt(0) + hex[1].charAt(0) + hex[2].charAt(0) + hex[3].charAt(0);
}
return hex.join("");
}
// `rgbaToArgbHex`
// Converts an RGBA color to an ARGB Hex8 string
// Rarely used, but required for "toFilter()"
function rgbaToArgbHex(r, g, b, a) {
var hex = [pad2(convertDecimalToHex(a)), pad2(Math.round(r).toString(16)), pad2(Math.round(g).toString(16)), pad2(Math.round(b).toString(16))];
return hex.join("");
}
// `equals`
// Can be called with any tinycolor input
tinycolor.equals = function (color1, color2) {
if (!color1 || !color2) return false;
return tinycolor(color1).toRgbString() == tinycolor(color2).toRgbString();
};
tinycolor.random = function () {
return tinycolor.fromRatio({
r: Math.random(),
g: Math.random(),
b: Math.random()
});
};
// Modification Functions
// ----------------------
// Thanks to less.js for some of the basics here
// <https://github.com/cloudhead/less.js/blob/master/lib/less/functions.js>
function _desaturate(color, amount) {
amount = amount === 0 ? 0 : amount || 10;
var hsl = tinycolor(color).toHsl();
hsl.s -= amount / 100;
hsl.s = clamp01(hsl.s);
return tinycolor(hsl);
}
function _saturate(color, amount) {
amount = amount === 0 ? 0 : amount || 10;
var hsl = tinycolor(color).toHsl();
hsl.s += amount / 100;
hsl.s = clamp01(hsl.s);
return tinycolor(hsl);
}
function _greyscale(color) {
return tinycolor(color).desaturate(100);
}
function _lighten(color, amount) {
amount = amount === 0 ? 0 : amount || 10;
var hsl = tinycolor(color).toHsl();
hsl.l += amount / 100;
hsl.l = clamp01(hsl.l);
return tinycolor(hsl);
}
function _brighten(color, amount) {
amount = amount === 0 ? 0 : amount || 10;
var rgb = tinycolor(color).toRgb();
rgb.r = Math.max(0, Math.min(255, rgb.r - Math.round(255 * -(amount / 100))));
rgb.g = Math.max(0, Math.min(255, rgb.g - Math.round(255 * -(amount / 100))));
rgb.b = Math.max(0, Math.min(255, rgb.b - Math.round(255 * -(amount / 100))));
return tinycolor(rgb);
}
function _darken(color, amount) {
amount = amount === 0 ? 0 : amount || 10;
var hsl = tinycolor(color).toHsl();
hsl.l -= amount / 100;
hsl.l = clamp01(hsl.l);
return tinycolor(hsl);
}
// Spin takes a positive or negative amount within [-360, 360] indicating the change of hue.
// Values outside of this range will be wrapped into this range.
function _spin(color, amount) {
var hsl = tinycolor(color).toHsl();
var hue = (hsl.h + amount) % 360;
hsl.h = hue < 0 ? 360 + hue : hue;
return tinycolor(hsl);
}
// Combination Functions
// ---------------------
// Thanks to jQuery xColor for some of the ideas behind these
// <https://github.com/infusion/jQuery-xcolor/blob/master/jquery.xcolor.js>
function _complement(color) {
var hsl = tinycolor(color).toHsl();
hsl.h = (hsl.h + 180) % 360;
return tinycolor(hsl);
}
function polyad(color, number) {
if (isNaN(number) || number <= 0) {
throw new Error("Argument to polyad must be a positive number");
}
var hsl = tinycolor(color).toHsl();
var result = [tinycolor(color)];
var step = 360 / number;
for (var i = 1; i < number; i++) {
result.push(tinycolor({
h: (hsl.h + i * step) % 360,
s: hsl.s,
l: hsl.l
}));
}
return result;
}
function _splitcomplement(color) {
var hsl = tinycolor(color).toHsl();
var h = hsl.h;
return [tinycolor(color), tinycolor({
h: (h + 72) % 360,
s: hsl.s,
l: hsl.l
}), tinycolor({
h: (h + 216) % 360,
s: hsl.s,
l: hsl.l
})];
}
function _analogous(color, results, slices) {
results = results || 6;
slices = slices || 30;
var hsl = tinycolor(color).toHsl();
var part = 360 / slices;
var ret = [tinycolor(color)];
for (hsl.h = (hsl.h - (part * results >> 1) + 720) % 360; --results;) {
hsl.h = (hsl.h + part) % 360;
ret.push(tinycolor(hsl));
}
return ret;
}
function _monochromatic(color, results) {
results = results || 6;
var hsv = tinycolor(color).toHsv();
var h = hsv.h,
s = hsv.s,
v = hsv.v;
var ret = [];
var modification = 1 / results;
while (results--) {
ret.push(tinycolor({
h: h,
s: s,
v: v
}));
v = (v + modification) % 1;
}
return ret;
}
// Utility Functions
// ---------------------
tinycolor.mix = function (color1, color2, amount) {
amount = amount === 0 ? 0 : amount || 50;
var rgb1 = tinycolor(color1).toRgb();
var rgb2 = tinycolor(color2).toRgb();
var p = amount / 100;
var rgba = {
r: (rgb2.r - rgb1.r) * p + rgb1.r,
g: (rgb2.g - rgb1.g) * p + rgb1.g,
b: (rgb2.b - rgb1.b) * p + rgb1.b,
a: (rgb2.a - rgb1.a) * p + rgb1.a
};
return tinycolor(rgba);
};
// Readability Functions
// ---------------------
// <http://www.w3.org/TR/2008/REC-WCAG20-20081211/#contrast-ratiodef (WCAG Version 2)
// `contrast`
// Analyze the 2 colors and returns the color contrast defined by (WCAG Version 2)
tinycolor.readability = function (color1, color2) {
var c1 = tinycolor(color1);
var c2 = tinycolor(color2);
return (Math.max(c1.getLuminance(), c2.getLuminance()) + 0.05) / (Math.min(c1.getLuminance(), c2.getLuminance()) + 0.05);
};
// `isReadable`
// Ensure that foreground and background color combinations meet WCAG2 guidelines.
// The third argument is an optional Object.
// the 'level' property states 'AA' or 'AAA' - if missing or invalid, it defaults to 'AA';
// the 'size' property states 'large' or 'small' - if missing or invalid, it defaults to 'small'.
// If the entire object is absent, isReadable defaults to {level:"AA",size:"small"}.
// *Example*
// tinycolor.isReadable("#000", "#111") => false
// tinycolor.isReadable("#000", "#111",{level:"AA",size:"large"}) => false
tinycolor.isReadable = function (color1, color2, wcag2) {
var readability = tinycolor.readability(color1, color2);
var wcag2Parms, out;
out = false;
wcag2Parms = validateWCAG2Parms(wcag2);
switch (wcag2Parms.level + wcag2Parms.size) {
case "AAsmall":
case "AAAlarge":
out = readability >= 4.5;
break;
case "AAlarge":
out = readability >= 3;
break;
case "AAAsmall":
out = readability >= 7;
break;
}
return out;
};
// `mostReadable`
// Given a base color and a list of possible foreground or background
// colors for that base, returns the most readable color.
// Optionally returns Black or White if the most readable color is unreadable.
// *Example*
// tinycolor.mostReadable(tinycolor.mostReadable("#123", ["#124", "#125"],{includeFallbackColors:false}).toHexString(); // "#112255"
// tinycolor.mostReadable(tinycolor.mostReadable("#123", ["#124", "#125"],{includeFallbackColors:true}).toHexString(); // "#ffffff"
// tinycolor.mostReadable("#a8015a", ["#faf3f3"],{includeFallbackColors:true,level:"AAA",size:"large"}).toHexString(); // "#faf3f3"
// tinycolor.mostReadable("#a8015a", ["#faf3f3"],{includeFallbackColors:true,level:"AAA",size:"small"}).toHexString(); // "#ffffff"
tinycolor.mostReadable = function (baseColor, colorList, args) {
var bestColor = null;
var bestScore = 0;
var readability;
var includeFallbackColors, level, size;
args = args || {};
includeFallbackColors = args.includeFallbackColors;
level = args.level;
size = args.size;
for (var i = 0; i < colorList.length; i++) {
readability = tinycolor.readability(baseColor, colorList[i]);
if (readability > bestScore) {
bestScore = readability;
bestColor = tinycolor(colorList[i]);
}
}
if (tinycolor.isReadable(baseColor, bestColor, {
level: level,
size: size
}) || !includeFallbackColors) {
return bestColor;
} else {
args.includeFallbackColors = false;
return tinycolor.mostReadable(baseColor, ["#fff", "#000"], args);
}
};
// Big List of Colors
// ------------------
// <https://www.w3.org/TR/css-color-4/#named-colors>
var names = tinycolor.names = {
aliceblue: "f0f8ff",
antiquewhite: "faebd7",
aqua: "0ff",
aquamarine: "7fffd4",
azure: "f0ffff",
beige: "f5f5dc",
bisque: "ffe4c4",
black: "000",
blanchedalmond: "ffebcd",
blue: "00f",
blueviolet: "8a2be2",
brown: "a52a2a",
burlywood: "deb887",
burntsienna: "ea7e5d",
cadetblue: "5f9ea0",
chartreuse: "7fff00",
chocolate: "d2691e",
coral: "ff7f50",
cornflowerblue: "6495ed",
cornsilk: "fff8dc",
crimson: "dc143c",
cyan: "0ff",
darkblue: "00008b",
darkcyan: "008b8b",
darkgoldenrod: "b8860b",
darkgray: "a9a9a9",
darkgreen: "006400",
darkgrey: "a9a9a9",
darkkhaki: "bdb76b",
darkmagenta: "8b008b",
darkolivegreen: "556b2f",
darkorange: "ff8c00",
darkorchid: "9932cc",
darkred: "8b0000",
darksalmon: "e9967a",
darkseagreen: "8fbc8f",
darkslateblue: "483d8b",
darkslategray: "2f4f4f",
darkslategrey: "2f4f4f",
darkturquoise: "00ced1",
darkviolet: "9400d3",
deeppink: "ff1493",
deepskyblue: "00bfff",
dimgray: "696969",
dimgrey: "696969",
dodgerblue: "1e90ff",
firebrick: "b22222",
floralwhite: "fffaf0",
forestgreen: "228b22",
fuchsia: "f0f",
gainsboro: "dcdcdc",
ghostwhite: "f8f8ff",
gold: "ffd700",
goldenrod: "daa520",
gray: "808080",
green: "008000",
greenyellow: "adff2f",
grey: "808080",
honeydew: "f0fff0",
hotpink: "ff69b4",
indianred: "cd5c5c",
indigo: "4b0082",
ivory: "fffff0",
khaki: "f0e68c",
lavender: "e6e6fa",
lavenderblush: "fff0f5",
lawngreen: "7cfc00",
lemonchiffon: "fffacd",
lightblue: "add8e6",
lightcoral: "f08080",
lightcyan: "e0ffff",
lightgoldenrodyellow: "fafad2",
lightgray: "d3d3d3",
lightgreen: "90ee90",
lightgrey: "d3d3d3",
lightpink: "ffb6c1",
lightsalmon: "ffa07a",
lightseagreen: "20b2aa",
lightskyblue: "87cefa",
lightslategray: "789",
lightslategrey: "789",
lightsteelblue: "b0c4de",
lightyellow: "ffffe0",
lime: "0f0",
limegreen: "32cd32",
linen: "faf0e6",
magenta: "f0f",
maroon: "800000",
mediumaquamarine: "66cdaa",
mediumblue: "0000cd",
mediumorchid: "ba55d3",
mediumpurple: "9370db",
mediumseagreen: "3cb371",
mediumslateblue: "7b68ee",
mediumspringgreen: "00fa9a",
mediumturquoise: "48d1cc",
mediumvioletred: "c71585",
midnightblue: "191970",
mintcream: "f5fffa",
mistyrose: "ffe4e1",
moccasin: "ffe4b5",
navajowhite: "ffdead",
navy: "000080",
oldlace: "fdf5e6",
olive: "808000",
olivedrab: "6b8e23",
orange: "ffa500",
orangered: "ff4500",
orchid: "da70d6",
palegoldenrod: "eee8aa",
palegreen: "98fb98",
paleturquoise: "afeeee",
palevioletred: "db7093",
papayawhip: "ffefd5",
peachpuff: "ffdab9",
peru: "cd853f",
pink: "ffc0cb",
plum: "dda0dd",
powderblue: "b0e0e6",
purple: "800080",
rebeccapurple: "663399",
red: "f00",
rosybrown: "bc8f8f",
royalblue: "4169e1",
saddlebrown: "8b4513",
salmon: "fa8072",
sandybrown: "f4a460",
seagreen: "2e8b57",
seashell: "fff5ee",
sienna: "a0522d",
silver: "c0c0c0",
skyblue: "87ceeb",
slateblue: "6a5acd",
slategray: "708090",
slategrey: "708090",
snow: "fffafa",
springgreen: "00ff7f",
steelblue: "4682b4",
tan: "d2b48c",
teal: "008080",
thistle: "d8bfd8",
tomato: "ff6347",
turquoise: "40e0d0",
violet: "ee82ee",
wheat: "f5deb3",
white: "fff",
whitesmoke: "f5f5f5",
yellow: "ff0",
yellowgreen: "9acd32"
};
// Make it easy to access colors via `hexNames[hex]`
var hexNames = tinycolor.hexNames = flip(names);
// Utilities
// ---------
// `{ 'name1': 'val1' }` becomes `{ 'val1': 'name1' }`
function flip(o) {
var flipped = {};
for (var i in o) {
if (o.hasOwnProperty(i)) {
flipped[o[i]] = i;
}
}
return flipped;
}
// Return a valid alpha value [0,1] with all invalid values being set to 1
function boundAlpha(a) {
a = parseFloat(a);
if (isNaN(a) || a < 0 || a > 1) {
a = 1;
}
return a;
}
// Take input from [0, n] and return it as [0, 1]
function bound01(n, max) {
if (isOnePointZero(n)) n = "100%";
var processPercent = isPercentage(n);
n = Math.min(max, Math.max(0, parseFloat(n)));
// Automatically convert percentage into number
if (processPercent) {
n = parseInt(n * max, 10) / 100;
}
// Handle floating point rounding errors
if (Math.abs(n - max) < 0.000001) {
return 1;
}
// Convert into [0, 1] range if it isn't already
return n % max / parseFloat(max);
}
// Force a number between 0 and 1
function clamp01(val) {
return Math.min(1, Math.max(0, val));
}
// Parse a base-16 hex value into a base-10 integer
function parseIntFromHex(val) {
return parseInt(val, 16);
}
// Need to handle 1.0 as 100%, since once it is a number, there is no difference between it and 1
// <http://stackoverflow.com/questions/7422072/javascript-how-to-detect-number-as-a-decimal-including-1-0>
function isOnePointZero(n) {
return typeof n == "string" && n.indexOf(".") != -1 && parseFloat(n) === 1;
}
// Check to see if string passed in is a percentage
function isPercentage(n) {
return typeof n === "string" && n.indexOf("%") != -1;
}
// Force a hex value to have 2 characters
function pad2(c) {
return c.length == 1 ? "0" + c : "" + c;
}
// Replace a decimal with it's percentage value
function convertToPercentage(n) {
if (n <= 1) {
n = n * 100 + "%";
}
return n;
}
// Converts a decimal to a hex value
function convertDecimalToHex(d) {
return Math.round(parseFloat(d) * 255).toString(16);
}
// Converts a hex value to a decimal
function convertHexToDecimal(h) {
return parseIntFromHex(h) / 255;
}
var matchers = function () {
// <http://www.w3.org/TR/css3-values/#integers>
var CSS_INTEGER = "[-\\+]?\\d+%?";
// <http://www.w3.org/TR/css3-values/#number-value>
var CSS_NUMBER = "[-\\+]?\\d*\\.\\d+%?";
// Allow positive/negative integer/number. Don't capture the either/or, just the entire outcome.
var CSS_UNIT = "(?:" + CSS_NUMBER + ")|(?:" + CSS_INTEGER + ")";
// Actual matching.
// Parentheses and commas are optional, but not required.
// Whitespace can take the place of commas or opening paren
var PERMISSIVE_MATCH3 = "[\\s|\\(]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")\\s*\\)?";
var PERMISSIVE_MATCH4 = "[\\s|\\(]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")\\s*\\)?";
return {
CSS_UNIT: new RegExp(CSS_UNIT),
rgb: new RegExp("rgb" + PERMISSIVE_MATCH3),
rgba: new RegExp("rgba" + PERMISSIVE_MATCH4),
hsl: new RegExp("hsl" + PERMISSIVE_MATCH3),
hsla: new RegExp("hsla" + PERMISSIVE_MATCH4),
hsv: new RegExp("hsv" + PERMISSIVE_MATCH3),
hsva: new RegExp("hsva" + PERMISSIVE_MATCH4),
hex3: /^#?([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})$/,
hex6: /^#?([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/,
hex4: /^#?([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})$/,
hex8: /^#?([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/
};
}();
// `isValidCSSUnit`
// Take in a single string / number and check to see if it looks like a CSS unit
// (see `matchers` above for definition).
function isValidCSSUnit(color) {
return !!matchers.CSS_UNIT.exec(color);
}
// `stringInputToObject`
// Permissive string parsing. Take in a number of formats, and output an object
// based on detected format. Returns `{ r, g, b }` or `{ h, s, l }` or `{ h, s, v}`
function stringInputToObject(color) {
color = color.replace(trimLeft, "").replace(trimRight, "").toLowerCase();
var named = false;
if (names[color]) {
color = names[color];
named = true;
} else if (color == "transparent") {
return {
r: 0,
g: 0,
b: 0,
a: 0,
format: "name"
};
}
// Try to match string input using regular expressions.
// Keep most of the number bounding out of this function - don't worry about [0,1] or [0,100] or [0,360]
// Just return an object and let the conversion functions handle that.
// This way the result will be the same whether the tinycolor is initialized with string or object.
var match;
if (match = matchers.rgb.exec(color)) {
return {
r: match[1],
g: match[2],
b: match[3]
};
}
if (match = matchers.rgba.exec(color)) {
return {
r: match[1],
g: match[2],
b: match[3],
a: match[4]
};
}
if (match = matchers.hsl.exec(color)) {
return {
h: match[1],
s: match[2],
l: match[3]
};
}
if (match = matchers.hsla.exec(color)) {
return {
h: match[1],
s: match[2],
l: match[3],
a: match[4]
};
}
if (match = matchers.hsv.exec(color)) {
return {
h: match[1],
s: match[2],
v: match[3]
};
}
if (match = matchers.hsva.exec(color)) {
return {
h: match[1],
s: match[2],
v: match[3],
a: match[4]
};
}
if (match = matchers.hex8.exec(color)) {
return {
r: parseIntFromHex(match[1]),
g: parseIntFromHex(match[2]),
b: parseIntFromHex(match[3]),
a: convertHexToDecimal(match[4]),
format: named ? "name" : "hex8"
};
}
if (match = matchers.hex6.exec(color)) {
return {
r: parseIntFromHex(match[1]),
g: parseIntFromHex(match[2]),
b: parseIntFromHex(match[3]),
format: named ? "name" : "hex"
};
}
if (match = matchers.hex4.exec(color)) {
return {
r: parseIntFromHex(match[1] + "" + match[1]),
g: parseIntFromHex(match[2] + "" + match[2]),
b: parseIntFromHex(match[3] + "" + match[3]),
a: convertHexToDecimal(match[4] + "" + match[4]),
format: named ? "name" : "hex8"
};
}
if (match = matchers.hex3.exec(color)) {
return {
r: parseIntFromHex(match[1] + "" + match[1]),
g: parseIntFromHex(match[2] + "" + match[2]),
b: parseIntFromHex(match[3] + "" + match[3]),
format: named ? "name" : "hex"
};
}
return false;
}
function validateWCAG2Parms(parms) {
// return valid WCAG2 parms for isReadable.
// If input parms are invalid, return {"level":"AA", "size":"small"}
var level, size;
parms = parms || {
level: "AA",
size: "small"
};
level = (parms.level || "AA").toUpperCase();
size = (parms.size || "small").toLowerCase();
if (level !== "AA" && level !== "AAA") {
level = "AA";
}
if (size !== "small" && size !== "large") {
size = "small";
}
return {
level: level,
size: size
};
}
function _classCallCheck(instance, Constructor) {
if (!(instance instanceof Constructor)) {
throw new TypeError("Cannot call a class as a function");
}
}
function _defineProperties(target, props) {
for (var i = 0; i < props.length; i++) {
var descriptor = props[i];
descriptor.enumerable = descriptor.enumerable || false;
descriptor.configurable = true;
if ("value" in descriptor) descriptor.writable = true;
Object.defineProperty(target, _toPropertyKey$1(descriptor.key), descriptor);
}
}
function _createClass(Constructor, protoProps, staticProps) {
if (protoProps) _defineProperties(Constructor.prototype, protoProps);
if (staticProps) _defineProperties(Constructor, staticProps);
Object.defineProperty(Constructor, "prototype", {
writable: false
});
return Constructor;
}
function _toConsumableArray$1(arr) {
return _arrayWithoutHoles$1(arr) || _iterableToArray$1(arr) || _unsupportedIterableToArray$1(arr) || _nonIterableSpread$1();
}
function _arrayWithoutHoles$1(arr) {
if (Array.isArray(arr)) return _arrayLikeToArray$1(arr);
}
function _iterableToArray$1(iter) {
if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter);
}
function _unsupportedIterableToArray$1(o, minLen) {
if (!o) return;
if (typeof o === "string") return _arrayLikeToArray$1(o, minLen);
var n = Object.prototype.toString.call(o).slice(8, -1);
if (n === "Object" && o.constructor) n = o.constructor.name;
if (n === "Map" || n === "Set") return Array.from(o);
if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray$1(o, minLen);
}
function _arrayLikeToArray$1(arr, len) {
if (len == null || len > arr.length) len = arr.length;
for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
return arr2;
}
function _nonIterableSpread$1() {
throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}
function _toPrimitive$1(input, hint) {
if (typeof input !== "object" || input === null) return input;
var prim = input[Symbol.toPrimitive];
if (prim !== undefined) {
var res = prim.call(input, hint || "default");
if (typeof res !== "object") return res;
throw new TypeError("@@toPrimitive must return a primitive value.");
}
return (hint === "string" ? String : Number)(input);
}
function _toPropertyKey$1(arg) {
var key = _toPrimitive$1(arg, "string");
return typeof key === "symbol" ? key : String(key);
}
var ENTROPY = 123; // Raise numbers to prevent collisions in lower indexes
var int2HexColor = function int2HexColor(num) {
return "#".concat(Math.min(num, Math.pow(2, 24)).toString(16).padStart(6, '0'));
};
var rgb2Int = function rgb2Int(r, g, b) {
return (r << 16) + (g << 8) + b;
};
var colorStr2Int = function colorStr2Int(str) {
var _tinyColor$toRgb = tinycolor(str).toRgb(),
r = _tinyColor$toRgb.r,
g = _tinyColor$toRgb.g,
b = _tinyColor$toRgb.b;
return rgb2Int(r, g, b);
};
var checksum = function checksum(n, csBits) {
return n * ENTROPY % Math.pow(2, csBits);
};
var _default = /*#__PURE__*/function () {
function _default() {
var csBits = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 6;
_classCallCheck(this, _default);
this.csBits = csBits; // How many bits to reserve for checksum. Will eat away into the usable size of the registry.
this.registry = ['__reserved for background__']; // indexed objects for rgb lookup;
}
_createClass(_default, [{
key: "register",
value: function register(obj) {
if (this.registry.length >= Math.pow(2, 24 - this.csBits)) {
// color has 24 bits (-checksum)
return null; // Registry is full
}
var idx = this.registry.length;
var cs = checksum(idx, this.csBits);
var color = int2HexColor(idx + (cs << 24 - this.csBits));
this.registry.push(obj);
return color;
}
}, {
key: "lookup",
value: function lookup(color) {
var n = typeof color === 'string' ? colorStr2Int(color) : rgb2Int.apply(void 0, _toConsumableArray$1(color));
if (!n) return null; // 0 index is reserved for background
var idx = n & Math.pow(2, 24 - this.csBits) - 1; // registry index
var cs = n >> 24 - this.csBits & Math.pow(2, this.csBits) - 1; // extract bits reserved for checksum
if (checksum(idx, this.csBits) !== cs || idx >= this.registry.length) return null; // failed checksum or registry out of bounds
return this.registry[idx];
}
}]);
return _default;
}();
function d3ForceCenter(x, y, z) {
var nodes, strength = 1;
if (x == null) x = 0;
if (y == null) y = 0;
if (z == null) z = 0;
function force() {
var i,
n = nodes.length,
node,
sx = 0,
sy = 0,
sz = 0;
for (i = 0; i < n; ++i) {
node = nodes[i], sx += node.x || 0, sy += node.y || 0, sz += node.z || 0;
}
for (sx = (sx / n - x) * strength, sy = (sy / n - y) * strength, sz = (sz / n - z) * strength, i = 0; i < n; ++i) {
node = nodes[i];
if (sx) { node.x -= sx; }
if (sy) { node.y -= sy; }
if (sz) { node.z -= sz; }
}
}
force.initialize = function(_) {
nodes = _;
};
force.x = function(_) {
return arguments.length ? (x = +_, force) : x;
};
force.y = function(_) {
return arguments.length ? (y = +_, force) : y;
};
force.z = function(_) {
return arguments.length ? (z = +_, force) : z;
};
force.strength = function(_) {
return arguments.length ? (strength = +_, force) : strength;
};
return force;
}
function tree_add$2(d) {
const x = +this._x.call(null, d);
return add$2(this.cover(x), x, d);
}
function add$2(tree, x, d) {
if (isNaN(x)) return tree; // ignore invalid points
var parent,
node = tree._root,
leaf = {data: d},
x0 = tree._x0,
x1 = tree._x1,
xm,
xp,
right,
i,
j;
// If the tree is empty, initialize the root as a leaf.
if (!node) return tree._root = leaf, tree;
// Find the existing leaf for the new point, or add it.
while (node.length) {
if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm;
if (parent = node, !(node = node[i = +right])) return parent[i] = leaf, tree;
}
// Is the new point is exactly coincident with the existing point?
xp = +tree._x.call(null, node.data);
if (x === xp) return leaf.next = node, parent ? parent[i] = leaf : tree._root = leaf, tree;
// Otherwise, split the leaf node until the old and new point are separated.
do {
parent = parent ? parent[i] = new Array(2) : tree._root = new Array(2);
if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm;
} while ((i = +right) === (j = +(xp >= xm)));
return parent[j] = node, parent[i] = leaf, tree;
}
function addAll$2(data) {
if (!Array.isArray(data)) data = Array.from(data);
const n = data.length;
const xz = new Float64Array(n);
let x0 = Infinity,
x1 = -Infinity;
// Compute the points and their extent.
for (let i = 0, x; i < n; ++i) {
if (isNaN(x = +this._x.call(null, data[i]))) continue;
xz[i] = x;
if (x < x0) x0 = x;
if (x > x1) x1 = x;
}
// If there were no (valid) points, abort.
if (x0 > x1) return this;
// Expand the tree to cover the new points.
this.cover(x0).cover(x1);
// Add the new points.
for (let i = 0; i < n; ++i) {
add$2(this, xz[i], data[i]);
}
return this;
}
function tree_cover$2(x) {
if (isNaN(x = +x)) return this; // ignore invalid points
var x0 = this._x0,
x1 = this._x1;
// If the binarytree has no extent, initialize them.
// Integer extent are necessary so that if we later double the extent,
// the existing half boundaries dont change due to floating point error!
if (isNaN(x0)) {
x1 = (x0 = Math.floor(x)) + 1;
}
// Otherwise, double repeatedly to cover.
else {
var z = x1 - x0 || 1,
node = this._root,
parent,
i;
while (x0 > x || x >= x1) {
i = +(x < x0);
parent = new Array(2), parent[i] = node, node = parent, z *= 2;
switch (i) {
case 0: x1 = x0 + z; break;
case 1: x0 = x1 - z; break;
}
}
if (this._root && this._root.length) this._root = node;
}
this._x0 = x0;
this._x1 = x1;
return this;
}
function tree_data$2() {
var data = [];
this.visit(function(node) {
if (!node.length) do data.push(node.data); while (node = node.next)
});
return data;
}
function tree_extent$2(_) {
return arguments.length
? this.cover(+_[0][0]).cover(+_[1][0])
: isNaN(this._x0) ? undefined : [[this._x0], [this._x1]];
}
function Half(node, x0, x1) {
this.node = node;
this.x0 = x0;
this.x1 = x1;
}
function tree_find$2(x, radius) {
var data,
x0 = this._x0,
x1,
x2,
x3 = this._x1,
halves = [],
node = this._root,
q,
i;
if (node) halves.push(new Half(node, x0, x3));
if (radius == null) radius = Infinity;
else {
x0 = x - radius;
x3 = x + radius;
}
while (q = halves.pop()) {
// Stop searching if this half cant contain a closer node.
if (!(node = q.node)
|| (x1 = q.x0) > x3
|| (x2 = q.x1) < x0) continue;
// Bisect the current half.
if (node.length) {
var xm = (x1 + x2) / 2;
halves.push(
new Half(node[1], xm, x2),
new Half(node[0], x1, xm)
);
// Visit the closest half first.
if (i = +(x >= xm)) {
q = halves[halves.length - 1];
halves[halves.length - 1] = halves[halves.length - 1 - i];
halves[halves.length - 1 - i] = q;
}
}
// Visit this point. (Visiting coincident points isnt necessary!)
else {
var d = Math.abs(x - +this._x.call(null, node.data));
if (d < radius) {
radius = d;
x0 = x - d;
x3 = x + d;
data = node.data;
}
}
}
return data;
}
function tree_remove$2(d) {
if (isNaN(x = +this._x.call(null, d))) return this; // ignore invalid points
var parent,
node = this._root,
retainer,
previous,
next,
x0 = this._x0,
x1 = this._x1,
x,
xm,
right,
i,
j;
// If the tree is empty, initialize the root as a leaf.
if (!node) return this;
// Find the leaf node for the point.
// While descending, also retain the deepest parent with a non-removed sibling.
if (node.length) while (true) {
if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm;
if (!(parent = node, node = node[i = +right])) return this;
if (!node.length) break;
if (parent[(i + 1) & 1]) retainer = parent, j = i;
}
// Find the point to remove.
while (node.data !== d) if (!(previous = node, node = node.next)) return this;
if (next = node.next) delete node.next;
// If there are multiple coincident points, remove just the point.
if (previous) return (next ? previous.next = next : delete previous.next), this;
// If this is the root point, remove it.
if (!parent) return this._root = next, this;
// Remove this leaf.
next ? parent[i] = next : delete parent[i];
// If the parent now contains exactly one leaf, collapse superfluous parents.
if ((node = parent[0] || parent[1])
&& node === (parent[1] || parent[0])
&& !node.length) {
if (retainer) retainer[j] = node;
else this._root = node;
}
return this;
}
function removeAll$2(data) {
for (var i = 0, n = data.length; i < n; ++i) this.remove(data[i]);
return this;
}
function tree_root$2() {
return this._root;
}
function tree_size$2() {
var size = 0;
this.visit(function(node) {
if (!node.length) do ++size; while (node = node.next)
});
return size;
}
function tree_visit$2(callback) {
var halves = [], q, node = this._root, child, x0, x1;
if (node) halves.push(new Half(node, this._x0, this._x1));
while (q = halves.pop()) {
if (!callback(node = q.node, x0 = q.x0, x1 = q.x1) && node.length) {
var xm = (x0 + x1) / 2;
if (child = node[1]) halves.push(new Half(child, xm, x1));
if (child = node[0]) halves.push(new Half(child, x0, xm));
}
}
return this;
}
function tree_visitAfter$2(callback) {
var halves = [], next = [], q;
if (this._root) halves.push(new Half(this._root, this._x0, this._x1));
while (q = halves.pop()) {
var node = q.node;
if (node.length) {
var child, x0 = q.x0, x1 = q.x1, xm = (x0 + x1) / 2;
if (child = node[0]) halves.push(new Half(child, x0, xm));
if (child = node[1]) halves.push(new Half(child, xm, x1));
}
next.push(q);
}
while (q = next.pop()) {
callback(q.node, q.x0, q.x1);
}
return this;
}
function defaultX$2(d) {
return d[0];
}
function tree_x$2(_) {
return arguments.length ? (this._x = _, this) : this._x;
}
function binarytree(nodes, x) {
var tree = new Binarytree(x == null ? defaultX$2 : x, NaN, NaN);
return nodes == null ? tree : tree.addAll(nodes);
}
function Binarytree(x, x0, x1) {
this._x = x;
this._x0 = x0;
this._x1 = x1;
this._root = undefined;
}
function leaf_copy$2(leaf) {
var copy = {data: leaf.data}, next = copy;
while (leaf = leaf.next) next = next.next = {data: leaf.data};
return copy;
}
var treeProto$2 = binarytree.prototype = Binarytree.prototype;
treeProto$2.copy = function() {
var copy = new Binarytree(this._x, this._x0, this._x1),
node = this._root,
nodes,
child;
if (!node) return copy;
if (!node.length) return copy._root = leaf_copy$2(node), copy;
nodes = [{source: node, target: copy._root = new Array(2)}];
while (node = nodes.pop()) {
for (var i = 0; i < 2; ++i) {
if (child = node.source[i]) {
if (child.length) nodes.push({source: child, target: node.target[i] = new Array(2)});
else node.target[i] = leaf_copy$2(child);
}
}
}
return copy;
};
treeProto$2.add = tree_add$2;
treeProto$2.addAll = addAll$2;
treeProto$2.cover = tree_cover$2;
treeProto$2.data = tree_data$2;
treeProto$2.extent = tree_extent$2;
treeProto$2.find = tree_find$2;
treeProto$2.remove = tree_remove$2;
treeProto$2.removeAll = removeAll$2;
treeProto$2.root = tree_root$2;
treeProto$2.size = tree_size$2;
treeProto$2.visit = tree_visit$2;
treeProto$2.visitAfter = tree_visitAfter$2;
treeProto$2.x = tree_x$2;
function tree_add$1(d) {
const x = +this._x.call(null, d),
y = +this._y.call(null, d);
return add$1(this.cover(x, y), x, y, d);
}
function add$1(tree, x, y, d) {
if (isNaN(x) || isNaN(y)) return tree; // ignore invalid points
var parent,
node = tree._root,
leaf = {data: d},
x0 = tree._x0,
y0 = tree._y0,
x1 = tree._x1,
y1 = tree._y1,
xm,
ym,
xp,
yp,
right,
bottom,
i,
j;
// If the tree is empty, initialize the root as a leaf.
if (!node) return tree._root = leaf, tree;
// Find the existing leaf for the new point, or add it.
while (node.length) {
if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm;
if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym;
if (parent = node, !(node = node[i = bottom << 1 | right])) return parent[i] = leaf, tree;
}
// Is the new point is exactly coincident with the existing point?
xp = +tree._x.call(null, node.data);
yp = +tree._y.call(null, node.data);
if (x === xp && y === yp) return leaf.next = node, parent ? parent[i] = leaf : tree._root = leaf, tree;
// Otherwise, split the leaf node until the old and new point are separated.
do {
parent = parent ? parent[i] = new Array(4) : tree._root = new Array(4);
if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm;
if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym;
} while ((i = bottom << 1 | right) === (j = (yp >= ym) << 1 | (xp >= xm)));
return parent[j] = node, parent[i] = leaf, tree;
}
function addAll$1(data) {
var d, i, n = data.length,
x,
y,
xz = new Array(n),
yz = new Array(n),
x0 = Infinity,
y0 = Infinity,
x1 = -Infinity,
y1 = -Infinity;
// Compute the points and their extent.
for (i = 0; i < n; ++i) {
if (isNaN(x = +this._x.call(null, d = data[i])) || isNaN(y = +this._y.call(null, d))) continue;
xz[i] = x;
yz[i] = y;
if (x < x0) x0 = x;
if (x > x1) x1 = x;
if (y < y0) y0 = y;
if (y > y1) y1 = y;
}
// If there were no (valid) points, abort.
if (x0 > x1 || y0 > y1) return this;
// Expand the tree to cover the new points.
this.cover(x0, y0).cover(x1, y1);
// Add the new points.
for (i = 0; i < n; ++i) {
add$1(this, xz[i], yz[i], data[i]);
}
return this;
}
function tree_cover$1(x, y) {
if (isNaN(x = +x) || isNaN(y = +y)) return this; // ignore invalid points
var x0 = this._x0,
y0 = this._y0,
x1 = this._x1,
y1 = this._y1;
// If the quadtree has no extent, initialize them.
// Integer extent are necessary so that if we later double the extent,
// the existing quadrant boundaries dont change due to floating point error!
if (isNaN(x0)) {
x1 = (x0 = Math.floor(x)) + 1;
y1 = (y0 = Math.floor(y)) + 1;
}
// Otherwise, double repeatedly to cover.
else {
var z = x1 - x0 || 1,
node = this._root,
parent,
i;
while (x0 > x || x >= x1 || y0 > y || y >= y1) {
i = (y < y0) << 1 | (x < x0);
parent = new Array(4), parent[i] = node, node = parent, z *= 2;
switch (i) {
case 0: x1 = x0 + z, y1 = y0 + z; break;
case 1: x0 = x1 - z, y1 = y0 + z; break;
case 2: x1 = x0 + z, y0 = y1 - z; break;
case 3: x0 = x1 - z, y0 = y1 - z; break;
}
}
if (this._root && this._root.length) this._root = node;
}
this._x0 = x0;
this._y0 = y0;
this._x1 = x1;
this._y1 = y1;
return this;
}
function tree_data$1() {
var data = [];
this.visit(function(node) {
if (!node.length) do data.push(node.data); while (node = node.next)
});
return data;
}
function tree_extent$1(_) {
return arguments.length
? this.cover(+_[0][0], +_[0][1]).cover(+_[1][0], +_[1][1])
: isNaN(this._x0) ? undefined : [[this._x0, this._y0], [this._x1, this._y1]];
}
function Quad(node, x0, y0, x1, y1) {
this.node = node;
this.x0 = x0;
this.y0 = y0;
this.x1 = x1;
this.y1 = y1;
}
function tree_find$1(x, y, radius) {
var data,
x0 = this._x0,
y0 = this._y0,
x1,
y1,
x2,
y2,
x3 = this._x1,
y3 = this._y1,
quads = [],
node = this._root,
q,
i;
if (node) quads.push(new Quad(node, x0, y0, x3, y3));
if (radius == null) radius = Infinity;
else {
x0 = x - radius, y0 = y - radius;
x3 = x + radius, y3 = y + radius;
radius *= radius;
}
while (q = quads.pop()) {
// Stop searching if this quadrant cant contain a closer node.
if (!(node = q.node)
|| (x1 = q.x0) > x3
|| (y1 = q.y0) > y3
|| (x2 = q.x1) < x0
|| (y2 = q.y1) < y0) continue;
// Bisect the current quadrant.
if (node.length) {
var xm = (x1 + x2) / 2,
ym = (y1 + y2) / 2;
quads.push(
new Quad(node[3], xm, ym, x2, y2),
new Quad(node[2], x1, ym, xm, y2),
new Quad(node[1], xm, y1, x2, ym),
new Quad(node[0], x1, y1, xm, ym)
);
// Visit the closest quadrant first.
if (i = (y >= ym) << 1 | (x >= xm)) {
q = quads[quads.length - 1];
quads[quads.length - 1] = quads[quads.length - 1 - i];
quads[quads.length - 1 - i] = q;
}
}
// Visit this point. (Visiting coincident points isnt necessary!)
else {
var dx = x - +this._x.call(null, node.data),
dy = y - +this._y.call(null, node.data),
d2 = dx * dx + dy * dy;
if (d2 < radius) {
var d = Math.sqrt(radius = d2);
x0 = x - d, y0 = y - d;
x3 = x + d, y3 = y + d;
data = node.data;
}
}
}
return data;
}
function tree_remove$1(d) {
if (isNaN(x = +this._x.call(null, d)) || isNaN(y = +this._y.call(null, d))) return this; // ignore invalid points
var parent,
node = this._root,
retainer,
previous,
next,
x0 = this._x0,
y0 = this._y0,
x1 = this._x1,
y1 = this._y1,
x,
y,
xm,
ym,
right,
bottom,
i,
j;
// If the tree is empty, initialize the root as a leaf.
if (!node) return this;
// Find the leaf node for the point.
// While descending, also retain the deepest parent with a non-removed sibling.
if (node.length) while (true) {
if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm;
if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym;
if (!(parent = node, node = node[i = bottom << 1 | right])) return this;
if (!node.length) break;
if (parent[(i + 1) & 3] || parent[(i + 2) & 3] || parent[(i + 3) & 3]) retainer = parent, j = i;
}
// Find the point to remove.
while (node.data !== d) if (!(previous = node, node = node.next)) return this;
if (next = node.next) delete node.next;
// If there are multiple coincident points, remove just the point.
if (previous) return (next ? previous.next = next : delete previous.next), this;
// If this is the root point, remove it.
if (!parent) return this._root = next, this;
// Remove this leaf.
next ? parent[i] = next : delete parent[i];
// If the parent now contains exactly one leaf, collapse superfluous parents.
if ((node = parent[0] || parent[1] || parent[2] || parent[3])
&& node === (parent[3] || parent[2] || parent[1] || parent[0])
&& !node.length) {
if (retainer) retainer[j] = node;
else this._root = node;
}
return this;
}
function removeAll$1(data) {
for (var i = 0, n = data.length; i < n; ++i) this.remove(data[i]);
return this;
}
function tree_root$1() {
return this._root;
}
function tree_size$1() {
var size = 0;
this.visit(function(node) {
if (!node.length) do ++size; while (node = node.next)
});
return size;
}
function tree_visit$1(callback) {
var quads = [], q, node = this._root, child, x0, y0, x1, y1;
if (node) quads.push(new Quad(node, this._x0, this._y0, this._x1, this._y1));
while (q = quads.pop()) {
if (!callback(node = q.node, x0 = q.x0, y0 = q.y0, x1 = q.x1, y1 = q.y1) && node.length) {
var xm = (x0 + x1) / 2, ym = (y0 + y1) / 2;
if (child = node[3]) quads.push(new Quad(child, xm, ym, x1, y1));
if (child = node[2]) quads.push(new Quad(child, x0, ym, xm, y1));
if (child = node[1]) quads.push(new Quad(child, xm, y0, x1, ym));
if (child = node[0]) quads.push(new Quad(child, x0, y0, xm, ym));
}
}
return this;
}
function tree_visitAfter$1(callback) {
var quads = [], next = [], q;
if (this._root) quads.push(new Quad(this._root, this._x0, this._y0, this._x1, this._y1));
while (q = quads.pop()) {
var node = q.node;
if (node.length) {
var child, x0 = q.x0, y0 = q.y0, x1 = q.x1, y1 = q.y1, xm = (x0 + x1) / 2, ym = (y0 + y1) / 2;
if (child = node[0]) quads.push(new Quad(child, x0, y0, xm, ym));
if (child = node[1]) quads.push(new Quad(child, xm, y0, x1, ym));
if (child = node[2]) quads.push(new Quad(child, x0, ym, xm, y1));
if (child = node[3]) quads.push(new Quad(child, xm, ym, x1, y1));
}
next.push(q);
}
while (q = next.pop()) {
callback(q.node, q.x0, q.y0, q.x1, q.y1);
}
return this;
}
function defaultX$1(d) {
return d[0];
}
function tree_x$1(_) {
return arguments.length ? (this._x = _, this) : this._x;
}
function defaultY$1(d) {
return d[1];
}
function tree_y$1(_) {
return arguments.length ? (this._y = _, this) : this._y;
}
function quadtree(nodes, x, y) {
var tree = new Quadtree(x == null ? defaultX$1 : x, y == null ? defaultY$1 : y, NaN, NaN, NaN, NaN);
return nodes == null ? tree : tree.addAll(nodes);
}
function Quadtree(x, y, x0, y0, x1, y1) {
this._x = x;
this._y = y;
this._x0 = x0;
this._y0 = y0;
this._x1 = x1;
this._y1 = y1;
this._root = undefined;
}
function leaf_copy$1(leaf) {
var copy = {data: leaf.data}, next = copy;
while (leaf = leaf.next) next = next.next = {data: leaf.data};
return copy;
}
var treeProto$1 = quadtree.prototype = Quadtree.prototype;
treeProto$1.copy = function() {
var copy = new Quadtree(this._x, this._y, this._x0, this._y0, this._x1, this._y1),
node = this._root,
nodes,
child;
if (!node) return copy;
if (!node.length) return copy._root = leaf_copy$1(node), copy;
nodes = [{source: node, target: copy._root = new Array(4)}];
while (node = nodes.pop()) {
for (var i = 0; i < 4; ++i) {
if (child = node.source[i]) {
if (child.length) nodes.push({source: child, target: node.target[i] = new Array(4)});
else node.target[i] = leaf_copy$1(child);
}
}
}
return copy;
};
treeProto$1.add = tree_add$1;
treeProto$1.addAll = addAll$1;
treeProto$1.cover = tree_cover$1;
treeProto$1.data = tree_data$1;
treeProto$1.extent = tree_extent$1;
treeProto$1.find = tree_find$1;
treeProto$1.remove = tree_remove$1;
treeProto$1.removeAll = removeAll$1;
treeProto$1.root = tree_root$1;
treeProto$1.size = tree_size$1;
treeProto$1.visit = tree_visit$1;
treeProto$1.visitAfter = tree_visitAfter$1;
treeProto$1.x = tree_x$1;
treeProto$1.y = tree_y$1;
function tree_add(d) {
const x = +this._x.call(null, d),
y = +this._y.call(null, d),
z = +this._z.call(null, d);
return add(this.cover(x, y, z), x, y, z, d);
}
function add(tree, x, y, z, d) {
if (isNaN(x) || isNaN(y) || isNaN(z)) return tree; // ignore invalid points
var parent,
node = tree._root,
leaf = {data: d},
x0 = tree._x0,
y0 = tree._y0,
z0 = tree._z0,
x1 = tree._x1,
y1 = tree._y1,
z1 = tree._z1,
xm,
ym,
zm,
xp,
yp,
zp,
right,
bottom,
deep,
i,
j;
// If the tree is empty, initialize the root as a leaf.
if (!node) return tree._root = leaf, tree;
// Find the existing leaf for the new point, or add it.
while (node.length) {
if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm;
if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym;
if (deep = z >= (zm = (z0 + z1) / 2)) z0 = zm; else z1 = zm;
if (parent = node, !(node = node[i = deep << 2 | bottom << 1 | right])) return parent[i] = leaf, tree;
}
// Is the new point is exactly coincident with the existing point?
xp = +tree._x.call(null, node.data);
yp = +tree._y.call(null, node.data);
zp = +tree._z.call(null, node.data);
if (x === xp && y === yp && z === zp) return leaf.next = node, parent ? parent[i] = leaf : tree._root = leaf, tree;
// Otherwise, split the leaf node until the old and new point are separated.
do {
parent = parent ? parent[i] = new Array(8) : tree._root = new Array(8);
if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm;
if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym;
if (deep = z >= (zm = (z0 + z1) / 2)) z0 = zm; else z1 = zm;
} while ((i = deep << 2 | bottom << 1 | right) === (j = (zp >= zm) << 2 | (yp >= ym) << 1 | (xp >= xm)));
return parent[j] = node, parent[i] = leaf, tree;
}
function addAll(data) {
if (!Array.isArray(data)) data = Array.from(data);
const n = data.length;
const xz = new Float64Array(n);
const yz = new Float64Array(n);
const zz = new Float64Array(n);
let x0 = Infinity,
y0 = Infinity,
z0 = Infinity,
x1 = -Infinity,
y1 = -Infinity,
z1 = -Infinity;
// Compute the points and their extent.
for (let i = 0, d, x, y, z; i < n; ++i) {
if (isNaN(x = +this._x.call(null, d = data[i])) || isNaN(y = +this._y.call(null, d)) || isNaN(z = +this._z.call(null, d))) continue;
xz[i] = x;
yz[i] = y;
zz[i] = z;
if (x < x0) x0 = x;
if (x > x1) x1 = x;
if (y < y0) y0 = y;
if (y > y1) y1 = y;
if (z < z0) z0 = z;
if (z > z1) z1 = z;
}
// If there were no (valid) points, abort.
if (x0 > x1 || y0 > y1 || z0 > z1) return this;
// Expand the tree to cover the new points.
this.cover(x0, y0, z0).cover(x1, y1, z1);
// Add the new points.
for (let i = 0; i < n; ++i) {
add(this, xz[i], yz[i], zz[i], data[i]);
}
return this;
}
function tree_cover(x, y, z) {
if (isNaN(x = +x) || isNaN(y = +y) || isNaN(z = +z)) return this; // ignore invalid points
var x0 = this._x0,
y0 = this._y0,
z0 = this._z0,
x1 = this._x1,
y1 = this._y1,
z1 = this._z1;
// If the octree has no extent, initialize them.
// Integer extent are necessary so that if we later double the extent,
// the existing octant boundaries dont change due to floating point error!
if (isNaN(x0)) {
x1 = (x0 = Math.floor(x)) + 1;
y1 = (y0 = Math.floor(y)) + 1;
z1 = (z0 = Math.floor(z)) + 1;
}
// Otherwise, double repeatedly to cover.
else {
var t = x1 - x0 || 1,
node = this._root,
parent,
i;
while (x0 > x || x >= x1 || y0 > y || y >= y1 || z0 > z || z >= z1) {
i = (z < z0) << 2 | (y < y0) << 1 | (x < x0);
parent = new Array(8), parent[i] = node, node = parent, t *= 2;
switch (i) {
case 0: x1 = x0 + t, y1 = y0 + t, z1 = z0 + t; break;
case 1: x0 = x1 - t, y1 = y0 + t, z1 = z0 + t; break;
case 2: x1 = x0 + t, y0 = y1 - t, z1 = z0 + t; break;
case 3: x0 = x1 - t, y0 = y1 - t, z1 = z0 + t; break;
case 4: x1 = x0 + t, y1 = y0 + t, z0 = z1 - t; break;
case 5: x0 = x1 - t, y1 = y0 + t, z0 = z1 - t; break;
case 6: x1 = x0 + t, y0 = y1 - t, z0 = z1 - t; break;
case 7: x0 = x1 - t, y0 = y1 - t, z0 = z1 - t; break;
}
}
if (this._root && this._root.length) this._root = node;
}
this._x0 = x0;
this._y0 = y0;
this._z0 = z0;
this._x1 = x1;
this._y1 = y1;
this._z1 = z1;
return this;
}
function tree_data() {
var data = [];
this.visit(function(node) {
if (!node.length) do data.push(node.data); while (node = node.next)
});
return data;
}
function tree_extent(_) {
return arguments.length
? this.cover(+_[0][0], +_[0][1], +_[0][2]).cover(+_[1][0], +_[1][1], +_[1][2])
: isNaN(this._x0) ? undefined : [[this._x0, this._y0, this._z0], [this._x1, this._y1, this._z1]];
}
function Octant(node, x0, y0, z0, x1, y1, z1) {
this.node = node;
this.x0 = x0;
this.y0 = y0;
this.z0 = z0;
this.x1 = x1;
this.y1 = y1;
this.z1 = z1;
}
function tree_find(x, y, z, radius) {
var data,
x0 = this._x0,
y0 = this._y0,
z0 = this._z0,
x1,
y1,
z1,
x2,
y2,
z2,
x3 = this._x1,
y3 = this._y1,
z3 = this._z1,
octs = [],
node = this._root,
q,
i;
if (node) octs.push(new Octant(node, x0, y0, z0, x3, y3, z3));
if (radius == null) radius = Infinity;
else {
x0 = x - radius, y0 = y - radius, z0 = z - radius;
x3 = x + radius, y3 = y + radius, z3 = z + radius;
radius *= radius;
}
while (q = octs.pop()) {
// Stop searching if this octant cant contain a closer node.
if (!(node = q.node)
|| (x1 = q.x0) > x3
|| (y1 = q.y0) > y3
|| (z1 = q.z0) > z3
|| (x2 = q.x1) < x0
|| (y2 = q.y1) < y0
|| (z2 = q.z1) < z0) continue;
// Bisect the current octant.
if (node.length) {
var xm = (x1 + x2) / 2,
ym = (y1 + y2) / 2,
zm = (z1 + z2) / 2;
octs.push(
new Octant(node[7], xm, ym, zm, x2, y2, z2),
new Octant(node[6], x1, ym, zm, xm, y2, z2),
new Octant(node[5], xm, y1, zm, x2, ym, z2),
new Octant(node[4], x1, y1, zm, xm, ym, z2),
new Octant(node[3], xm, ym, z1, x2, y2, zm),
new Octant(node[2], x1, ym, z1, xm, y2, zm),
new Octant(node[1], xm, y1, z1, x2, ym, zm),
new Octant(node[0], x1, y1, z1, xm, ym, zm)
);
// Visit the closest octant first.
if (i = (z >= zm) << 2 | (y >= ym) << 1 | (x >= xm)) {
q = octs[octs.length - 1];
octs[octs.length - 1] = octs[octs.length - 1 - i];
octs[octs.length - 1 - i] = q;
}
}
// Visit this point. (Visiting coincident points isnt necessary!)
else {
var dx = x - +this._x.call(null, node.data),
dy = y - +this._y.call(null, node.data),
dz = z - +this._z.call(null, node.data),
d2 = dx * dx + dy * dy + dz * dz;
if (d2 < radius) {
var d = Math.sqrt(radius = d2);
x0 = x - d, y0 = y - d, z0 = z - d;
x3 = x + d, y3 = y + d, z3 = z + d;
data = node.data;
}
}
}
return data;
}
function tree_remove(d) {
if (isNaN(x = +this._x.call(null, d)) || isNaN(y = +this._y.call(null, d)) || isNaN(z = +this._z.call(null, d))) return this; // ignore invalid points
var parent,
node = this._root,
retainer,
previous,
next,
x0 = this._x0,
y0 = this._y0,
z0 = this._z0,
x1 = this._x1,
y1 = this._y1,
z1 = this._z1,
x,
y,
z,
xm,
ym,
zm,
right,
bottom,
deep,
i,
j;
// If the tree is empty, initialize the root as a leaf.
if (!node) return this;
// Find the leaf node for the point.
// While descending, also retain the deepest parent with a non-removed sibling.
if (node.length) while (true) {
if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm;
if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym;
if (deep = z >= (zm = (z0 + z1) / 2)) z0 = zm; else z1 = zm;
if (!(parent = node, node = node[i = deep << 2 | bottom << 1 | right])) return this;
if (!node.length) break;
if (parent[(i + 1) & 7] || parent[(i + 2) & 7] || parent[(i + 3) & 7] || parent[(i + 4) & 7] || parent[(i + 5) & 7] || parent[(i + 6) & 7] || parent[(i + 7) & 7]) retainer = parent, j = i;
}
// Find the point to remove.
while (node.data !== d) if (!(previous = node, node = node.next)) return this;
if (next = node.next) delete node.next;
// If there are multiple coincident points, remove just the point.
if (previous) return (next ? previous.next = next : delete previous.next), this;
// If this is the root point, remove it.
if (!parent) return this._root = next, this;
// Remove this leaf.
next ? parent[i] = next : delete parent[i];
// If the parent now contains exactly one leaf, collapse superfluous parents.
if ((node = parent[0] || parent[1] || parent[2] || parent[3] || parent[4] || parent[5] || parent[6] || parent[7])
&& node === (parent[7] || parent[6] || parent[5] || parent[4] || parent[3] || parent[2] || parent[1] || parent[0])
&& !node.length) {
if (retainer) retainer[j] = node;
else this._root = node;
}
return this;
}
function removeAll(data) {
for (var i = 0, n = data.length; i < n; ++i) this.remove(data[i]);
return this;
}
function tree_root() {
return this._root;
}
function tree_size() {
var size = 0;
this.visit(function(node) {
if (!node.length) do ++size; while (node = node.next)
});
return size;
}
function tree_visit(callback) {
var octs = [], q, node = this._root, child, x0, y0, z0, x1, y1, z1;
if (node) octs.push(new Octant(node, this._x0, this._y0, this._z0, this._x1, this._y1, this._z1));
while (q = octs.pop()) {
if (!callback(node = q.node, x0 = q.x0, y0 = q.y0, z0 = q.z0, x1 = q.x1, y1 = q.y1, z1 = q.z1) && node.length) {
var xm = (x0 + x1) / 2, ym = (y0 + y1) / 2, zm = (z0 + z1) / 2;
if (child = node[7]) octs.push(new Octant(child, xm, ym, zm, x1, y1, z1));
if (child = node[6]) octs.push(new Octant(child, x0, ym, zm, xm, y1, z1));
if (child = node[5]) octs.push(new Octant(child, xm, y0, zm, x1, ym, z1));
if (child = node[4]) octs.push(new Octant(child, x0, y0, zm, xm, ym, z1));
if (child = node[3]) octs.push(new Octant(child, xm, ym, z0, x1, y1, zm));
if (child = node[2]) octs.push(new Octant(child, x0, ym, z0, xm, y1, zm));
if (child = node[1]) octs.push(new Octant(child, xm, y0, z0, x1, ym, zm));
if (child = node[0]) octs.push(new Octant(child, x0, y0, z0, xm, ym, zm));
}
}
return this;
}
function tree_visitAfter(callback) {
var octs = [], next = [], q;
if (this._root) octs.push(new Octant(this._root, this._x0, this._y0, this._z0, this._x1, this._y1, this._z1));
while (q = octs.pop()) {
var node = q.node;
if (node.length) {
var child, x0 = q.x0, y0 = q.y0, z0 = q.z0, x1 = q.x1, y1 = q.y1, z1 = q.z1, xm = (x0 + x1) / 2, ym = (y0 + y1) / 2, zm = (z0 + z1) / 2;
if (child = node[0]) octs.push(new Octant(child, x0, y0, z0, xm, ym, zm));
if (child = node[1]) octs.push(new Octant(child, xm, y0, z0, x1, ym, zm));
if (child = node[2]) octs.push(new Octant(child, x0, ym, z0, xm, y1, zm));
if (child = node[3]) octs.push(new Octant(child, xm, ym, z0, x1, y1, zm));
if (child = node[4]) octs.push(new Octant(child, x0, y0, zm, xm, ym, z1));
if (child = node[5]) octs.push(new Octant(child, xm, y0, zm, x1, ym, z1));
if (child = node[6]) octs.push(new Octant(child, x0, ym, zm, xm, y1, z1));
if (child = node[7]) octs.push(new Octant(child, xm, ym, zm, x1, y1, z1));
}
next.push(q);
}
while (q = next.pop()) {
callback(q.node, q.x0, q.y0, q.z0, q.x1, q.y1, q.z1);
}
return this;
}
function defaultX(d) {
return d[0];
}
function tree_x(_) {
return arguments.length ? (this._x = _, this) : this._x;
}
function defaultY(d) {
return d[1];
}
function tree_y(_) {
return arguments.length ? (this._y = _, this) : this._y;
}
function defaultZ(d) {
return d[2];
}
function tree_z(_) {
return arguments.length ? (this._z = _, this) : this._z;
}
function octree(nodes, x, y, z) {
var tree = new Octree(x == null ? defaultX : x, y == null ? defaultY : y, z == null ? defaultZ : z, NaN, NaN, NaN, NaN, NaN, NaN);
return nodes == null ? tree : tree.addAll(nodes);
}
function Octree(x, y, z, x0, y0, z0, x1, y1, z1) {
this._x = x;
this._y = y;
this._z = z;
this._x0 = x0;
this._y0 = y0;
this._z0 = z0;
this._x1 = x1;
this._y1 = y1;
this._z1 = z1;
this._root = undefined;
}
function leaf_copy(leaf) {
var copy = {data: leaf.data}, next = copy;
while (leaf = leaf.next) next = next.next = {data: leaf.data};
return copy;
}
var treeProto = octree.prototype = Octree.prototype;
treeProto.copy = function() {
var copy = new Octree(this._x, this._y, this._z, this._x0, this._y0, this._z0, this._x1, this._y1, this._z1),
node = this._root,
nodes,
child;
if (!node) return copy;
if (!node.length) return copy._root = leaf_copy(node), copy;
nodes = [{source: node, target: copy._root = new Array(8)}];
while (node = nodes.pop()) {
for (var i = 0; i < 8; ++i) {
if (child = node.source[i]) {
if (child.length) nodes.push({source: child, target: node.target[i] = new Array(8)});
else node.target[i] = leaf_copy(child);
}
}
}
return copy;
};
treeProto.add = tree_add;
treeProto.addAll = addAll;
treeProto.cover = tree_cover;
treeProto.data = tree_data;
treeProto.extent = tree_extent;
treeProto.find = tree_find;
treeProto.remove = tree_remove;
treeProto.removeAll = removeAll;
treeProto.root = tree_root;
treeProto.size = tree_size;
treeProto.visit = tree_visit;
treeProto.visitAfter = tree_visitAfter;
treeProto.x = tree_x;
treeProto.y = tree_y;
treeProto.z = tree_z;
function constant(x) {
return function() {
return x;
};
}
function jiggle(random) {
return (random() - 0.5) * 1e-6;
}
function index$1(d) {
return d.index;
}
function find(nodeById, nodeId) {
var node = nodeById.get(nodeId);
if (!node) throw new Error("node not found: " + nodeId);
return node;
}
function d3ForceLink(links) {
var id = index$1,
strength = defaultStrength,
strengths,
distance = constant(30),
distances,
nodes,
nDim,
count,
bias,
random,
iterations = 1;
if (links == null) links = [];
function defaultStrength(link) {
return 1 / Math.min(count[link.source.index], count[link.target.index]);
}
function force(alpha) {
for (var k = 0, n = links.length; k < iterations; ++k) {
for (var i = 0, link, source, target, x = 0, y = 0, z = 0, l, b; i < n; ++i) {
link = links[i], source = link.source, target = link.target;
x = target.x + target.vx - source.x - source.vx || jiggle(random);
if (nDim > 1) { y = target.y + target.vy - source.y - source.vy || jiggle(random); }
if (nDim > 2) { z = target.z + target.vz - source.z - source.vz || jiggle(random); }
l = Math.sqrt(x * x + y * y + z * z);
l = (l - distances[i]) / l * alpha * strengths[i];
x *= l, y *= l, z *= l;
target.vx -= x * (b = bias[i]);
if (nDim > 1) { target.vy -= y * b; }
if (nDim > 2) { target.vz -= z * b; }
source.vx += x * (b = 1 - b);
if (nDim > 1) { source.vy += y * b; }
if (nDim > 2) { source.vz += z * b; }
}
}
}
function initialize() {
if (!nodes) return;
var i,
n = nodes.length,
m = links.length,
nodeById = new Map(nodes.map((d, i) => [id(d, i, nodes), d])),
link;
for (i = 0, count = new Array(n); i < m; ++i) {
link = links[i], link.index = i;
if (typeof link.source !== "object") link.source = find(nodeById, link.source);
if (typeof link.target !== "object") link.target = find(nodeById, link.target);
count[link.source.index] = (count[link.source.index] || 0) + 1;
count[link.target.index] = (count[link.target.index] || 0) + 1;
}
for (i = 0, bias = new Array(m); i < m; ++i) {
link = links[i], bias[i] = count[link.source.index] / (count[link.source.index] + count[link.target.index]);
}
strengths = new Array(m), initializeStrength();
distances = new Array(m), initializeDistance();
}
function initializeStrength() {
if (!nodes) return;
for (var i = 0, n = links.length; i < n; ++i) {
strengths[i] = +strength(links[i], i, links);
}
}
function initializeDistance() {
if (!nodes) return;
for (var i = 0, n = links.length; i < n; ++i) {
distances[i] = +distance(links[i], i, links);
}
}
force.initialize = function(_nodes, ...args) {
nodes = _nodes;
random = args.find(arg => typeof arg === 'function') || Math.random;
nDim = args.find(arg => [1, 2, 3].includes(arg)) || 2;
initialize();
};
force.links = function(_) {
return arguments.length ? (links = _, initialize(), force) : links;
};
force.id = function(_) {
return arguments.length ? (id = _, force) : id;
};
force.iterations = function(_) {
return arguments.length ? (iterations = +_, force) : iterations;
};
force.strength = function(_) {
return arguments.length ? (strength = typeof _ === "function" ? _ : constant(+_), initializeStrength(), force) : strength;
};
force.distance = function(_) {
return arguments.length ? (distance = typeof _ === "function" ? _ : constant(+_), initializeDistance(), force) : distance;
};
return force;
}
// https://en.wikipedia.org/wiki/Linear_congruential_generator#Parameters_in_common_use
const a = 1664525;
const c = 1013904223;
const m = 4294967296; // 2^32
function lcg() {
let s = 1;
return () => (s = (a * s + c) % m) / m;
}
var MAX_DIMENSIONS = 3;
function x(d) {
return d.x;
}
function y(d) {
return d.y;
}
function z(d) {
return d.z;
}
var initialRadius = 10,
initialAngleRoll = Math.PI * (3 - Math.sqrt(5)), // Golden ratio angle
initialAngleYaw = Math.PI * 20 / (9 + Math.sqrt(221)); // Markov irrational number
function d3ForceSimulation(nodes, numDimensions) {
numDimensions = numDimensions || 2;
var nDim = Math.min(MAX_DIMENSIONS, Math.max(1, Math.round(numDimensions))),
simulation,
alpha = 1,
alphaMin = 0.001,
alphaDecay = 1 - Math.pow(alphaMin, 1 / 300),
alphaTarget = 0,
velocityDecay = 0.6,
forces = new Map(),
stepper = timer(step),
event = dispatch("tick", "end"),
random = lcg();
if (nodes == null) nodes = [];
function step() {
tick();
event.call("tick", simulation);
if (alpha < alphaMin) {
stepper.stop();
event.call("end", simulation);
}
}
function tick(iterations) {
var i, n = nodes.length, node;
if (iterations === undefined) iterations = 1;
for (var k = 0; k < iterations; ++k) {
alpha += (alphaTarget - alpha) * alphaDecay;
forces.forEach(function (force) {
force(alpha);
});
for (i = 0; i < n; ++i) {
node = nodes[i];
if (node.fx == null) node.x += node.vx *= velocityDecay;
else node.x = node.fx, node.vx = 0;
if (nDim > 1) {
if (node.fy == null) node.y += node.vy *= velocityDecay;
else node.y = node.fy, node.vy = 0;
}
if (nDim > 2) {
if (node.fz == null) node.z += node.vz *= velocityDecay;
else node.z = node.fz, node.vz = 0;
}
}
}
return simulation;
}
function initializeNodes() {
for (var i = 0, n = nodes.length, node; i < n; ++i) {
node = nodes[i], node.index = i;
if (node.fx != null) node.x = node.fx;
if (node.fy != null) node.y = node.fy;
if (node.fz != null) node.z = node.fz;
if (isNaN(node.x) || (nDim > 1 && isNaN(node.y)) || (nDim > 2 && isNaN(node.z))) {
var radius = initialRadius * (nDim > 2 ? Math.cbrt(0.5 + i) : (nDim > 1 ? Math.sqrt(0.5 + i) : i)),
rollAngle = i * initialAngleRoll,
yawAngle = i * initialAngleYaw;
if (nDim === 1) {
node.x = radius;
} else if (nDim === 2) {
node.x = radius * Math.cos(rollAngle);
node.y = radius * Math.sin(rollAngle);
} else { // 3 dimensions: use spherical distribution along 2 irrational number angles
node.x = radius * Math.sin(rollAngle) * Math.cos(yawAngle);
node.y = radius * Math.cos(rollAngle);
node.z = radius * Math.sin(rollAngle) * Math.sin(yawAngle);
}
}
if (isNaN(node.vx) || (nDim > 1 && isNaN(node.vy)) || (nDim > 2 && isNaN(node.vz))) {
node.vx = 0;
if (nDim > 1) { node.vy = 0; }
if (nDim > 2) { node.vz = 0; }
}
}
}
function initializeForce(force) {
if (force.initialize) force.initialize(nodes, random, nDim);
return force;
}
initializeNodes();
return simulation = {
tick: tick,
restart: function() {
return stepper.restart(step), simulation;
},
stop: function() {
return stepper.stop(), simulation;
},
numDimensions: function(_) {
return arguments.length
? (nDim = Math.min(MAX_DIMENSIONS, Math.max(1, Math.round(_))), forces.forEach(initializeForce), simulation)
: nDim;
},
nodes: function(_) {
return arguments.length ? (nodes = _, initializeNodes(), forces.forEach(initializeForce), simulation) : nodes;
},
alpha: function(_) {
return arguments.length ? (alpha = +_, simulation) : alpha;
},
alphaMin: function(_) {
return arguments.length ? (alphaMin = +_, simulation) : alphaMin;
},
alphaDecay: function(_) {
return arguments.length ? (alphaDecay = +_, simulation) : +alphaDecay;
},
alphaTarget: function(_) {
return arguments.length ? (alphaTarget = +_, simulation) : alphaTarget;
},
velocityDecay: function(_) {
return arguments.length ? (velocityDecay = 1 - _, simulation) : 1 - velocityDecay;
},
randomSource: function(_) {
return arguments.length ? (random = _, forces.forEach(initializeForce), simulation) : random;
},
force: function(name, _) {
return arguments.length > 1 ? ((_ == null ? forces.delete(name) : forces.set(name, initializeForce(_))), simulation) : forces.get(name);
},
find: function() {
var args = Array.prototype.slice.call(arguments);
var x = args.shift() || 0,
y = (nDim > 1 ? args.shift() : null) || 0,
z = (nDim > 2 ? args.shift() : null) || 0,
radius = args.shift() || Infinity;
var i = 0,
n = nodes.length,
dx,
dy,
dz,
d2,
node,
closest;
radius *= radius;
for (i = 0; i < n; ++i) {
node = nodes[i];
dx = x - node.x;
dy = y - (node.y || 0);
dz = z - (node.z ||0);
d2 = dx * dx + dy * dy + dz * dz;
if (d2 < radius) closest = node, radius = d2;
}
return closest;
},
on: function(name, _) {
return arguments.length > 1 ? (event.on(name, _), simulation) : event.on(name);
}
};
}
function d3ForceManyBody() {
var nodes,
nDim,
node,
random,
alpha,
strength = constant(-30),
strengths,
distanceMin2 = 1,
distanceMax2 = Infinity,
theta2 = 0.81;
function force(_) {
var i,
n = nodes.length,
tree =
(nDim === 1 ? binarytree(nodes, x)
:(nDim === 2 ? quadtree(nodes, x, y)
:(nDim === 3 ? octree(nodes, x, y, z)
:null
))).visitAfter(accumulate);
for (alpha = _, i = 0; i < n; ++i) node = nodes[i], tree.visit(apply);
}
function initialize() {
if (!nodes) return;
var i, n = nodes.length, node;
strengths = new Array(n);
for (i = 0; i < n; ++i) node = nodes[i], strengths[node.index] = +strength(node, i, nodes);
}
function accumulate(treeNode) {
var strength = 0, q, c, weight = 0, x, y, z, i;
var numChildren = treeNode.length;
// For internal nodes, accumulate forces from children.
if (numChildren) {
for (x = y = z = i = 0; i < numChildren; ++i) {
if ((q = treeNode[i]) && (c = Math.abs(q.value))) {
strength += q.value, weight += c, x += c * (q.x || 0), y += c * (q.y || 0), z += c * (q.z || 0);
}
}
strength *= Math.sqrt(4 / numChildren); // scale accumulated strength according to number of dimensions
treeNode.x = x / weight;
if (nDim > 1) { treeNode.y = y / weight; }
if (nDim > 2) { treeNode.z = z / weight; }
}
// For leaf nodes, accumulate forces from coincident nodes.
else {
q = treeNode;
q.x = q.data.x;
if (nDim > 1) { q.y = q.data.y; }
if (nDim > 2) { q.z = q.data.z; }
do strength += strengths[q.data.index];
while (q = q.next);
}
treeNode.value = strength;
}
function apply(treeNode, x1, arg1, arg2, arg3) {
if (!treeNode.value) return true;
var x2 = [arg1, arg2, arg3][nDim-1];
var x = treeNode.x - node.x,
y = (nDim > 1 ? treeNode.y - node.y : 0),
z = (nDim > 2 ? treeNode.z - node.z : 0),
w = x2 - x1,
l = x * x + y * y + z * z;
// Apply the Barnes-Hut approximation if possible.
// Limit forces for very close nodes; randomize direction if coincident.
if (w * w / theta2 < l) {
if (l < distanceMax2) {
if (x === 0) x = jiggle(random), l += x * x;
if (nDim > 1 && y === 0) y = jiggle(random), l += y * y;
if (nDim > 2 && z === 0) z = jiggle(random), l += z * z;
if (l < distanceMin2) l = Math.sqrt(distanceMin2 * l);
node.vx += x * treeNode.value * alpha / l;
if (nDim > 1) { node.vy += y * treeNode.value * alpha / l; }
if (nDim > 2) { node.vz += z * treeNode.value * alpha / l; }
}
return true;
}
// Otherwise, process points directly.
else if (treeNode.length || l >= distanceMax2) return;
// Limit forces for very close nodes; randomize direction if coincident.
if (treeNode.data !== node || treeNode.next) {
if (x === 0) x = jiggle(random), l += x * x;
if (nDim > 1 && y === 0) y = jiggle(random), l += y * y;
if (nDim > 2 && z === 0) z = jiggle(random), l += z * z;
if (l < distanceMin2) l = Math.sqrt(distanceMin2 * l);
}
do if (treeNode.data !== node) {
w = strengths[treeNode.data.index] * alpha / l;
node.vx += x * w;
if (nDim > 1) { node.vy += y * w; }
if (nDim > 2) { node.vz += z * w; }
} while (treeNode = treeNode.next);
}
force.initialize = function(_nodes, ...args) {
nodes = _nodes;
random = args.find(arg => typeof arg === 'function') || Math.random;
nDim = args.find(arg => [1, 2, 3].includes(arg)) || 2;
initialize();
};
force.strength = function(_) {
return arguments.length ? (strength = typeof _ === "function" ? _ : constant(+_), initialize(), force) : strength;
};
force.distanceMin = function(_) {
return arguments.length ? (distanceMin2 = _ * _, force) : Math.sqrt(distanceMin2);
};
force.distanceMax = function(_) {
return arguments.length ? (distanceMax2 = _ * _, force) : Math.sqrt(distanceMax2);
};
force.theta = function(_) {
return arguments.length ? (theta2 = _ * _, force) : Math.sqrt(theta2);
};
return force;
}
function d3ForceRadial(radius, x, y, z) {
var nodes,
nDim,
strength = constant(0.1),
strengths,
radiuses;
if (typeof radius !== "function") radius = constant(+radius);
if (x == null) x = 0;
if (y == null) y = 0;
if (z == null) z = 0;
function force(alpha) {
for (var i = 0, n = nodes.length; i < n; ++i) {
var node = nodes[i],
dx = node.x - x || 1e-6,
dy = (node.y || 0) - y || 1e-6,
dz = (node.z || 0) - z || 1e-6,
r = Math.sqrt(dx * dx + dy * dy + dz * dz),
k = (radiuses[i] - r) * strengths[i] * alpha / r;
node.vx += dx * k;
if (nDim>1) { node.vy += dy * k; }
if (nDim>2) { node.vz += dz * k; }
}
}
function initialize() {
if (!nodes) return;
var i, n = nodes.length;
strengths = new Array(n);
radiuses = new Array(n);
for (i = 0; i < n; ++i) {
radiuses[i] = +radius(nodes[i], i, nodes);
strengths[i] = isNaN(radiuses[i]) ? 0 : +strength(nodes[i], i, nodes);
}
}
force.initialize = function(initNodes, ...args) {
nodes = initNodes;
nDim = args.find(arg => [1, 2, 3].includes(arg)) || 2;
initialize();
};
force.strength = function(_) {
return arguments.length ? (strength = typeof _ === "function" ? _ : constant(+_), initialize(), force) : strength;
};
force.radius = function(_) {
return arguments.length ? (radius = typeof _ === "function" ? _ : constant(+_), initialize(), force) : radius;
};
force.x = function(_) {
return arguments.length ? (x = +_, force) : x;
};
force.y = function(_) {
return arguments.length ? (y = +_, force) : y;
};
force.z = function(_) {
return arguments.length ? (z = +_, force) : z;
};
return force;
}
// math-inlining.
const { abs: abs$1, cos: cos$1, sin: sin$1, acos: acos$1, atan2, sqrt: sqrt$1, pow } = Math;
// cube root function yielding real roots
function crt(v) {
return v < 0 ? -pow(-v, 1 / 3) : pow(v, 1 / 3);
}
// trig constants
const pi$1 = Math.PI,
tau = 2 * pi$1,
quart = pi$1 / 2,
// float precision significant decimal
epsilon = 0.000001,
// extremas used in bbox calculation and similar algorithms
nMax = Number.MAX_SAFE_INTEGER || 9007199254740991,
nMin = Number.MIN_SAFE_INTEGER || -9007199254740991,
// a zero coordinate, which is surprisingly useful
ZERO = { x: 0, y: 0, z: 0 };
// Bezier utility functions
const utils = {
// Legendre-Gauss abscissae with n=24 (x_i values, defined at i=n as the roots of the nth order Legendre polynomial Pn(x))
Tvalues: [
-0.0640568928626056260850430826247450385909,
0.0640568928626056260850430826247450385909,
-0.1911188674736163091586398207570696318404,
0.1911188674736163091586398207570696318404,
-0.3150426796961633743867932913198102407864,
0.3150426796961633743867932913198102407864,
-0.4337935076260451384870842319133497124524,
0.4337935076260451384870842319133497124524,
-0.5454214713888395356583756172183723700107,
0.5454214713888395356583756172183723700107,
-0.6480936519369755692524957869107476266696,
0.6480936519369755692524957869107476266696,
-0.7401241915785543642438281030999784255232,
0.7401241915785543642438281030999784255232,
-0.8200019859739029219539498726697452080761,
0.8200019859739029219539498726697452080761,
-0.8864155270044010342131543419821967550873,
0.8864155270044010342131543419821967550873,
-0.9382745520027327585236490017087214496548,
0.9382745520027327585236490017087214496548,
-0.9747285559713094981983919930081690617411,
0.9747285559713094981983919930081690617411,
-0.9951872199970213601799974097007368118745,
0.9951872199970213601799974097007368118745,
],
// Legendre-Gauss weights with n=24 (w_i values, defined by a function linked to in the Bezier primer article)
Cvalues: [
0.1279381953467521569740561652246953718517,
0.1279381953467521569740561652246953718517,
0.1258374563468282961213753825111836887264,
0.1258374563468282961213753825111836887264,
0.121670472927803391204463153476262425607,
0.121670472927803391204463153476262425607,
0.1155056680537256013533444839067835598622,
0.1155056680537256013533444839067835598622,
0.1074442701159656347825773424466062227946,
0.1074442701159656347825773424466062227946,
0.0976186521041138882698806644642471544279,
0.0976186521041138882698806644642471544279,
0.086190161531953275917185202983742667185,
0.086190161531953275917185202983742667185,
0.0733464814110803057340336152531165181193,
0.0733464814110803057340336152531165181193,
0.0592985849154367807463677585001085845412,
0.0592985849154367807463677585001085845412,
0.0442774388174198061686027482113382288593,
0.0442774388174198061686027482113382288593,
0.0285313886289336631813078159518782864491,
0.0285313886289336631813078159518782864491,
0.0123412297999871995468056670700372915759,
0.0123412297999871995468056670700372915759,
],
arcfn: function (t, derivativeFn) {
const d = derivativeFn(t);
let l = d.x * d.x + d.y * d.y;
if (typeof d.z !== "undefined") {
l += d.z * d.z;
}
return sqrt$1(l);
},
compute: function (t, points, _3d) {
// shortcuts
if (t === 0) {
points[0].t = 0;
return points[0];
}
const order = points.length - 1;
if (t === 1) {
points[order].t = 1;
return points[order];
}
const mt = 1 - t;
let p = points;
// constant?
if (order === 0) {
points[0].t = t;
return points[0];
}
// linear?
if (order === 1) {
const ret = {
x: mt * p[0].x + t * p[1].x,
y: mt * p[0].y + t * p[1].y,
t: t,
};
if (_3d) {
ret.z = mt * p[0].z + t * p[1].z;
}
return ret;
}
// quadratic/cubic curve?
if (order < 4) {
let mt2 = mt * mt,
t2 = t * t,
a,
b,
c,
d = 0;
if (order === 2) {
p = [p[0], p[1], p[2], ZERO];
a = mt2;
b = mt * t * 2;
c = t2;
} else if (order === 3) {
a = mt2 * mt;
b = mt2 * t * 3;
c = mt * t2 * 3;
d = t * t2;
}
const ret = {
x: a * p[0].x + b * p[1].x + c * p[2].x + d * p[3].x,
y: a * p[0].y + b * p[1].y + c * p[2].y + d * p[3].y,
t: t,
};
if (_3d) {
ret.z = a * p[0].z + b * p[1].z + c * p[2].z + d * p[3].z;
}
return ret;
}
// higher order curves: use de Casteljau's computation
const dCpts = JSON.parse(JSON.stringify(points));
while (dCpts.length > 1) {
for (let i = 0; i < dCpts.length - 1; i++) {
dCpts[i] = {
x: dCpts[i].x + (dCpts[i + 1].x - dCpts[i].x) * t,
y: dCpts[i].y + (dCpts[i + 1].y - dCpts[i].y) * t,
};
if (typeof dCpts[i].z !== "undefined") {
dCpts[i].z = dCpts[i].z + (dCpts[i + 1].z - dCpts[i].z) * t;
}
}
dCpts.splice(dCpts.length - 1, 1);
}
dCpts[0].t = t;
return dCpts[0];
},
computeWithRatios: function (t, points, ratios, _3d) {
const mt = 1 - t,
r = ratios,
p = points;
let f1 = r[0],
f2 = r[1],
f3 = r[2],
f4 = r[3],
d;
// spec for linear
f1 *= mt;
f2 *= t;
if (p.length === 2) {
d = f1 + f2;
return {
x: (f1 * p[0].x + f2 * p[1].x) / d,
y: (f1 * p[0].y + f2 * p[1].y) / d,
z: !_3d ? false : (f1 * p[0].z + f2 * p[1].z) / d,
t: t,
};
}
// upgrade to quadratic
f1 *= mt;
f2 *= 2 * mt;
f3 *= t * t;
if (p.length === 3) {
d = f1 + f2 + f3;
return {
x: (f1 * p[0].x + f2 * p[1].x + f3 * p[2].x) / d,
y: (f1 * p[0].y + f2 * p[1].y + f3 * p[2].y) / d,
z: !_3d ? false : (f1 * p[0].z + f2 * p[1].z + f3 * p[2].z) / d,
t: t,
};
}
// upgrade to cubic
f1 *= mt;
f2 *= 1.5 * mt;
f3 *= 3 * mt;
f4 *= t * t * t;
if (p.length === 4) {
d = f1 + f2 + f3 + f4;
return {
x: (f1 * p[0].x + f2 * p[1].x + f3 * p[2].x + f4 * p[3].x) / d,
y: (f1 * p[0].y + f2 * p[1].y + f3 * p[2].y + f4 * p[3].y) / d,
z: !_3d
? false
: (f1 * p[0].z + f2 * p[1].z + f3 * p[2].z + f4 * p[3].z) / d,
t: t,
};
}
},
derive: function (points, _3d) {
const dpoints = [];
for (let p = points, d = p.length, c = d - 1; d > 1; d--, c--) {
const list = [];
for (let j = 0, dpt; j < c; j++) {
dpt = {
x: c * (p[j + 1].x - p[j].x),
y: c * (p[j + 1].y - p[j].y),
};
if (_3d) {
dpt.z = c * (p[j + 1].z - p[j].z);
}
list.push(dpt);
}
dpoints.push(list);
p = list;
}
return dpoints;
},
between: function (v, m, M) {
return (
(m <= v && v <= M) ||
utils.approximately(v, m) ||
utils.approximately(v, M)
);
},
approximately: function (a, b, precision) {
return abs$1(a - b) <= (precision || epsilon);
},
length: function (derivativeFn) {
const z = 0.5,
len = utils.Tvalues.length;
let sum = 0;
for (let i = 0, t; i < len; i++) {
t = z * utils.Tvalues[i] + z;
sum += utils.Cvalues[i] * utils.arcfn(t, derivativeFn);
}
return z * sum;
},
map: function (v, ds, de, ts, te) {
const d1 = de - ds,
d2 = te - ts,
v2 = v - ds,
r = v2 / d1;
return ts + d2 * r;
},
lerp: function (r, v1, v2) {
const ret = {
x: v1.x + r * (v2.x - v1.x),
y: v1.y + r * (v2.y - v1.y),
};
if (v1.z !== undefined && v2.z !== undefined) {
ret.z = v1.z + r * (v2.z - v1.z);
}
return ret;
},
pointToString: function (p) {
let s = p.x + "/" + p.y;
if (typeof p.z !== "undefined") {
s += "/" + p.z;
}
return s;
},
pointsToString: function (points) {
return "[" + points.map(utils.pointToString).join(", ") + "]";
},
copy: function (obj) {
return JSON.parse(JSON.stringify(obj));
},
angle: function (o, v1, v2) {
const dx1 = v1.x - o.x,
dy1 = v1.y - o.y,
dx2 = v2.x - o.x,
dy2 = v2.y - o.y,
cross = dx1 * dy2 - dy1 * dx2,
dot = dx1 * dx2 + dy1 * dy2;
return atan2(cross, dot);
},
// round as string, to avoid rounding errors
round: function (v, d) {
const s = "" + v;
const pos = s.indexOf(".");
return parseFloat(s.substring(0, pos + 1 + d));
},
dist: function (p1, p2) {
const dx = p1.x - p2.x,
dy = p1.y - p2.y;
return sqrt$1(dx * dx + dy * dy);
},
closest: function (LUT, point) {
let mdist = pow(2, 63),
mpos,
d;
LUT.forEach(function (p, idx) {
d = utils.dist(point, p);
if (d < mdist) {
mdist = d;
mpos = idx;
}
});
return { mdist: mdist, mpos: mpos };
},
abcratio: function (t, n) {
// see ratio(t) note on http://pomax.github.io/bezierinfo/#abc
if (n !== 2 && n !== 3) {
return false;
}
if (typeof t === "undefined") {
t = 0.5;
} else if (t === 0 || t === 1) {
return t;
}
const bottom = pow(t, n) + pow(1 - t, n),
top = bottom - 1;
return abs$1(top / bottom);
},
projectionratio: function (t, n) {
// see u(t) note on http://pomax.github.io/bezierinfo/#abc
if (n !== 2 && n !== 3) {
return false;
}
if (typeof t === "undefined") {
t = 0.5;
} else if (t === 0 || t === 1) {
return t;
}
const top = pow(1 - t, n),
bottom = pow(t, n) + top;
return top / bottom;
},
lli8: function (x1, y1, x2, y2, x3, y3, x4, y4) {
const nx =
(x1 * y2 - y1 * x2) * (x3 - x4) - (x1 - x2) * (x3 * y4 - y3 * x4),
ny = (x1 * y2 - y1 * x2) * (y3 - y4) - (y1 - y2) * (x3 * y4 - y3 * x4),
d = (x1 - x2) * (y3 - y4) - (y1 - y2) * (x3 - x4);
if (d == 0) {
return false;
}
return { x: nx / d, y: ny / d };
},
lli4: function (p1, p2, p3, p4) {
const x1 = p1.x,
y1 = p1.y,
x2 = p2.x,
y2 = p2.y,
x3 = p3.x,
y3 = p3.y,
x4 = p4.x,
y4 = p4.y;
return utils.lli8(x1, y1, x2, y2, x3, y3, x4, y4);
},
lli: function (v1, v2) {
return utils.lli4(v1, v1.c, v2, v2.c);
},
makeline: function (p1, p2) {
return new Bezier(
p1.x,
p1.y,
(p1.x + p2.x) / 2,
(p1.y + p2.y) / 2,
p2.x,
p2.y
);
},
findbbox: function (sections) {
let mx = nMax,
my = nMax,
MX = nMin,
MY = nMin;
sections.forEach(function (s) {
const bbox = s.bbox();
if (mx > bbox.x.min) mx = bbox.x.min;
if (my > bbox.y.min) my = bbox.y.min;
if (MX < bbox.x.max) MX = bbox.x.max;
if (MY < bbox.y.max) MY = bbox.y.max;
});
return {
x: { min: mx, mid: (mx + MX) / 2, max: MX, size: MX - mx },
y: { min: my, mid: (my + MY) / 2, max: MY, size: MY - my },
};
},
shapeintersections: function (
s1,
bbox1,
s2,
bbox2,
curveIntersectionThreshold
) {
if (!utils.bboxoverlap(bbox1, bbox2)) return [];
const intersections = [];
const a1 = [s1.startcap, s1.forward, s1.back, s1.endcap];
const a2 = [s2.startcap, s2.forward, s2.back, s2.endcap];
a1.forEach(function (l1) {
if (l1.virtual) return;
a2.forEach(function (l2) {
if (l2.virtual) return;
const iss = l1.intersects(l2, curveIntersectionThreshold);
if (iss.length > 0) {
iss.c1 = l1;
iss.c2 = l2;
iss.s1 = s1;
iss.s2 = s2;
intersections.push(iss);
}
});
});
return intersections;
},
makeshape: function (forward, back, curveIntersectionThreshold) {
const bpl = back.points.length;
const fpl = forward.points.length;
const start = utils.makeline(back.points[bpl - 1], forward.points[0]);
const end = utils.makeline(forward.points[fpl - 1], back.points[0]);
const shape = {
startcap: start,
forward: forward,
back: back,
endcap: end,
bbox: utils.findbbox([start, forward, back, end]),
};
shape.intersections = function (s2) {
return utils.shapeintersections(
shape,
shape.bbox,
s2,
s2.bbox,
curveIntersectionThreshold
);
};
return shape;
},
getminmax: function (curve, d, list) {
if (!list) return { min: 0, max: 0 };
let min = nMax,
max = nMin,
t,
c;
if (list.indexOf(0) === -1) {
list = [0].concat(list);
}
if (list.indexOf(1) === -1) {
list.push(1);
}
for (let i = 0, len = list.length; i < len; i++) {
t = list[i];
c = curve.get(t);
if (c[d] < min) {
min = c[d];
}
if (c[d] > max) {
max = c[d];
}
}
return { min: min, mid: (min + max) / 2, max: max, size: max - min };
},
align: function (points, line) {
const tx = line.p1.x,
ty = line.p1.y,
a = -atan2(line.p2.y - ty, line.p2.x - tx),
d = function (v) {
return {
x: (v.x - tx) * cos$1(a) - (v.y - ty) * sin$1(a),
y: (v.x - tx) * sin$1(a) + (v.y - ty) * cos$1(a),
};
};
return points.map(d);
},
roots: function (points, line) {
line = line || { p1: { x: 0, y: 0 }, p2: { x: 1, y: 0 } };
const order = points.length - 1;
const aligned = utils.align(points, line);
const reduce = function (t) {
return 0 <= t && t <= 1;
};
if (order === 2) {
const a = aligned[0].y,
b = aligned[1].y,
c = aligned[2].y,
d = a - 2 * b + c;
if (d !== 0) {
const m1 = -sqrt$1(b * b - a * c),
m2 = -a + b,
v1 = -(m1 + m2) / d,
v2 = -(-m1 + m2) / d;
return [v1, v2].filter(reduce);
} else if (b !== c && d === 0) {
return [(2 * b - c) / (2 * b - 2 * c)].filter(reduce);
}
return [];
}
// see http://www.trans4mind.com/personal_development/mathematics/polynomials/cubicAlgebra.htm
const pa = aligned[0].y,
pb = aligned[1].y,
pc = aligned[2].y,
pd = aligned[3].y;
let d = -pa + 3 * pb - 3 * pc + pd,
a = 3 * pa - 6 * pb + 3 * pc,
b = -3 * pa + 3 * pb,
c = pa;
if (utils.approximately(d, 0)) {
// this is not a cubic curve.
if (utils.approximately(a, 0)) {
// in fact, this is not a quadratic curve either.
if (utils.approximately(b, 0)) {
// in fact in fact, there are no solutions.
return [];
}
// linear solution:
return [-c / b].filter(reduce);
}
// quadratic solution:
const q = sqrt$1(b * b - 4 * a * c),
a2 = 2 * a;
return [(q - b) / a2, (-b - q) / a2].filter(reduce);
}
// at this point, we know we need a cubic solution:
a /= d;
b /= d;
c /= d;
const p = (3 * b - a * a) / 3,
p3 = p / 3,
q = (2 * a * a * a - 9 * a * b + 27 * c) / 27,
q2 = q / 2,
discriminant = q2 * q2 + p3 * p3 * p3;
let u1, v1, x1, x2, x3;
if (discriminant < 0) {
const mp3 = -p / 3,
mp33 = mp3 * mp3 * mp3,
r = sqrt$1(mp33),
t = -q / (2 * r),
cosphi = t < -1 ? -1 : t > 1 ? 1 : t,
phi = acos$1(cosphi),
crtr = crt(r),
t1 = 2 * crtr;
x1 = t1 * cos$1(phi / 3) - a / 3;
x2 = t1 * cos$1((phi + tau) / 3) - a / 3;
x3 = t1 * cos$1((phi + 2 * tau) / 3) - a / 3;
return [x1, x2, x3].filter(reduce);
} else if (discriminant === 0) {
u1 = q2 < 0 ? crt(-q2) : -crt(q2);
x1 = 2 * u1 - a / 3;
x2 = -u1 - a / 3;
return [x1, x2].filter(reduce);
} else {
const sd = sqrt$1(discriminant);
u1 = crt(-q2 + sd);
v1 = crt(q2 + sd);
return [u1 - v1 - a / 3].filter(reduce);
}
},
droots: function (p) {
// quadratic roots are easy
if (p.length === 3) {
const a = p[0],
b = p[1],
c = p[2],
d = a - 2 * b + c;
if (d !== 0) {
const m1 = -sqrt$1(b * b - a * c),
m2 = -a + b,
v1 = -(m1 + m2) / d,
v2 = -(-m1 + m2) / d;
return [v1, v2];
} else if (b !== c && d === 0) {
return [(2 * b - c) / (2 * (b - c))];
}
return [];
}
// linear roots are even easier
if (p.length === 2) {
const a = p[0],
b = p[1];
if (a !== b) {
return [a / (a - b)];
}
return [];
}
return [];
},
curvature: function (t, d1, d2, _3d, kOnly) {
let num,
dnm,
adk,
dk,
k = 0,
r = 0;
//
// We're using the following formula for curvature:
//
// x'y" - y'x"
// k(t) = ------------------
// (x'² + y'²)^(3/2)
//
// from https://en.wikipedia.org/wiki/Radius_of_curvature#Definition
//
// With it corresponding 3D counterpart:
//
// sqrt( (y'z" - y"z')² + (z'x" - z"x')² + (x'y" - x"y')²)
// k(t) = -------------------------------------------------------
// (x'² + y'² + z'²)^(3/2)
//
const d = utils.compute(t, d1);
const dd = utils.compute(t, d2);
const qdsum = d.x * d.x + d.y * d.y;
if (_3d) {
num = sqrt$1(
pow(d.y * dd.z - dd.y * d.z, 2) +
pow(d.z * dd.x - dd.z * d.x, 2) +
pow(d.x * dd.y - dd.x * d.y, 2)
);
dnm = pow(qdsum + d.z * d.z, 3 / 2);
} else {
num = d.x * dd.y - d.y * dd.x;
dnm = pow(qdsum, 3 / 2);
}
if (num === 0 || dnm === 0) {
return { k: 0, r: 0 };
}
k = num / dnm;
r = dnm / num;
// We're also computing the derivative of kappa, because
// there is value in knowing the rate of change for the
// curvature along the curve. And we're just going to
// ballpark it based on an epsilon.
if (!kOnly) {
// compute k'(t) based on the interval before, and after it,
// to at least try to not introduce forward/backward pass bias.
const pk = utils.curvature(t - 0.001, d1, d2, _3d, true).k;
const nk = utils.curvature(t + 0.001, d1, d2, _3d, true).k;
dk = (nk - k + (k - pk)) / 2;
adk = (abs$1(nk - k) + abs$1(k - pk)) / 2;
}
return { k: k, r: r, dk: dk, adk: adk };
},
inflections: function (points) {
if (points.length < 4) return [];
// FIXME: TODO: add in inflection abstraction for quartic+ curves?
const p = utils.align(points, { p1: points[0], p2: points.slice(-1)[0] }),
a = p[2].x * p[1].y,
b = p[3].x * p[1].y,
c = p[1].x * p[2].y,
d = p[3].x * p[2].y,
v1 = 18 * (-3 * a + 2 * b + 3 * c - d),
v2 = 18 * (3 * a - b - 3 * c),
v3 = 18 * (c - a);
if (utils.approximately(v1, 0)) {
if (!utils.approximately(v2, 0)) {
let t = -v3 / v2;
if (0 <= t && t <= 1) return [t];
}
return [];
}
const d2 = 2 * v1;
if (utils.approximately(d2, 0)) return [];
const trm = v2 * v2 - 4 * v1 * v3;
if (trm < 0) return [];
const sq = Math.sqrt(trm);
return [(sq - v2) / d2, -(v2 + sq) / d2].filter(function (r) {
return 0 <= r && r <= 1;
});
},
bboxoverlap: function (b1, b2) {
const dims = ["x", "y"],
len = dims.length;
for (let i = 0, dim, l, t, d; i < len; i++) {
dim = dims[i];
l = b1[dim].mid;
t = b2[dim].mid;
d = (b1[dim].size + b2[dim].size) / 2;
if (abs$1(l - t) >= d) return false;
}
return true;
},
expandbox: function (bbox, _bbox) {
if (_bbox.x.min < bbox.x.min) {
bbox.x.min = _bbox.x.min;
}
if (_bbox.y.min < bbox.y.min) {
bbox.y.min = _bbox.y.min;
}
if (_bbox.z && _bbox.z.min < bbox.z.min) {
bbox.z.min = _bbox.z.min;
}
if (_bbox.x.max > bbox.x.max) {
bbox.x.max = _bbox.x.max;
}
if (_bbox.y.max > bbox.y.max) {
bbox.y.max = _bbox.y.max;
}
if (_bbox.z && _bbox.z.max > bbox.z.max) {
bbox.z.max = _bbox.z.max;
}
bbox.x.mid = (bbox.x.min + bbox.x.max) / 2;
bbox.y.mid = (bbox.y.min + bbox.y.max) / 2;
if (bbox.z) {
bbox.z.mid = (bbox.z.min + bbox.z.max) / 2;
}
bbox.x.size = bbox.x.max - bbox.x.min;
bbox.y.size = bbox.y.max - bbox.y.min;
if (bbox.z) {
bbox.z.size = bbox.z.max - bbox.z.min;
}
},
pairiteration: function (c1, c2, curveIntersectionThreshold) {
const c1b = c1.bbox(),
c2b = c2.bbox(),
r = 100000,
threshold = curveIntersectionThreshold || 0.5;
if (
c1b.x.size + c1b.y.size < threshold &&
c2b.x.size + c2b.y.size < threshold
) {
return [
(((r * (c1._t1 + c1._t2)) / 2) | 0) / r +
"/" +
(((r * (c2._t1 + c2._t2)) / 2) | 0) / r,
];
}
let cc1 = c1.split(0.5),
cc2 = c2.split(0.5),
pairs = [
{ left: cc1.left, right: cc2.left },
{ left: cc1.left, right: cc2.right },
{ left: cc1.right, right: cc2.right },
{ left: cc1.right, right: cc2.left },
];
pairs = pairs.filter(function (pair) {
return utils.bboxoverlap(pair.left.bbox(), pair.right.bbox());
});
let results = [];
if (pairs.length === 0) return results;
pairs.forEach(function (pair) {
results = results.concat(
utils.pairiteration(pair.left, pair.right, threshold)
);
});
results = results.filter(function (v, i) {
return results.indexOf(v) === i;
});
return results;
},
getccenter: function (p1, p2, p3) {
const dx1 = p2.x - p1.x,
dy1 = p2.y - p1.y,
dx2 = p3.x - p2.x,
dy2 = p3.y - p2.y,
dx1p = dx1 * cos$1(quart) - dy1 * sin$1(quart),
dy1p = dx1 * sin$1(quart) + dy1 * cos$1(quart),
dx2p = dx2 * cos$1(quart) - dy2 * sin$1(quart),
dy2p = dx2 * sin$1(quart) + dy2 * cos$1(quart),
// chord midpoints
mx1 = (p1.x + p2.x) / 2,
my1 = (p1.y + p2.y) / 2,
mx2 = (p2.x + p3.x) / 2,
my2 = (p2.y + p3.y) / 2,
// midpoint offsets
mx1n = mx1 + dx1p,
my1n = my1 + dy1p,
mx2n = mx2 + dx2p,
my2n = my2 + dy2p,
// intersection of these lines:
arc = utils.lli8(mx1, my1, mx1n, my1n, mx2, my2, mx2n, my2n),
r = utils.dist(arc, p1);
// arc start/end values, over mid point:
let s = atan2(p1.y - arc.y, p1.x - arc.x),
m = atan2(p2.y - arc.y, p2.x - arc.x),
e = atan2(p3.y - arc.y, p3.x - arc.x),
_;
// determine arc direction (cw/ccw correction)
if (s < e) {
// if s<m<e, arc(s, e)
// if m<s<e, arc(e, s + tau)
// if s<e<m, arc(e, s + tau)
if (s > m || m > e) {
s += tau;
}
if (s > e) {
_ = e;
e = s;
s = _;
}
} else {
// if e<m<s, arc(e, s)
// if m<e<s, arc(s, e + tau)
// if e<s<m, arc(s, e + tau)
if (e < m && m < s) {
_ = e;
e = s;
s = _;
} else {
e += tau;
}
}
// assign and done.
arc.s = s;
arc.e = e;
arc.r = r;
return arc;
},
numberSort: function (a, b) {
return a - b;
},
};
/**
* Poly Bezier
* @param {[type]} curves [description]
*/
class PolyBezier {
constructor(curves) {
this.curves = [];
this._3d = false;
if (!!curves) {
this.curves = curves;
this._3d = this.curves[0]._3d;
}
}
valueOf() {
return this.toString();
}
toString() {
return (
"[" +
this.curves
.map(function (curve) {
return utils.pointsToString(curve.points);
})
.join(", ") +
"]"
);
}
addCurve(curve) {
this.curves.push(curve);
this._3d = this._3d || curve._3d;
}
length() {
return this.curves
.map(function (v) {
return v.length();
})
.reduce(function (a, b) {
return a + b;
});
}
curve(idx) {
return this.curves[idx];
}
bbox() {
const c = this.curves;
var bbox = c[0].bbox();
for (var i = 1; i < c.length; i++) {
utils.expandbox(bbox, c[i].bbox());
}
return bbox;
}
offset(d) {
const offset = [];
this.curves.forEach(function (v) {
offset.push(...v.offset(d));
});
return new PolyBezier(offset);
}
}
/**
A javascript Bezier curve library by Pomax.
Based on http://pomax.github.io/bezierinfo
This code is MIT licensed.
**/
// math-inlining.
const { abs, min, max, cos, sin, acos, sqrt } = Math;
const pi = Math.PI;
/**
* Bezier curve constructor.
*
* ...docs pending...
*/
class Bezier {
constructor(coords) {
let args =
coords && coords.forEach ? coords : Array.from(arguments).slice();
let coordlen = false;
if (typeof args[0] === "object") {
coordlen = args.length;
const newargs = [];
args.forEach(function (point) {
["x", "y", "z"].forEach(function (d) {
if (typeof point[d] !== "undefined") {
newargs.push(point[d]);
}
});
});
args = newargs;
}
let higher = false;
const len = args.length;
if (coordlen) {
if (coordlen > 4) {
if (arguments.length !== 1) {
throw new Error(
"Only new Bezier(point[]) is accepted for 4th and higher order curves"
);
}
higher = true;
}
} else {
if (len !== 6 && len !== 8 && len !== 9 && len !== 12) {
if (arguments.length !== 1) {
throw new Error(
"Only new Bezier(point[]) is accepted for 4th and higher order curves"
);
}
}
}
const _3d = (this._3d =
(!higher && (len === 9 || len === 12)) ||
(coords && coords[0] && typeof coords[0].z !== "undefined"));
const points = (this.points = []);
for (let idx = 0, step = _3d ? 3 : 2; idx < len; idx += step) {
var point = {
x: args[idx],
y: args[idx + 1],
};
if (_3d) {
point.z = args[idx + 2];
}
points.push(point);
}
const order = (this.order = points.length - 1);
const dims = (this.dims = ["x", "y"]);
if (_3d) dims.push("z");
this.dimlen = dims.length;
// is this curve, practically speaking, a straight line?
const aligned = utils.align(points, { p1: points[0], p2: points[order] });
const baselength = utils.dist(points[0], points[order]);
this._linear = aligned.reduce((t, p) => t + abs(p.y), 0) < baselength / 50;
this._lut = [];
this._t1 = 0;
this._t2 = 1;
this.update();
}
static quadraticFromPoints(p1, p2, p3, t) {
if (typeof t === "undefined") {
t = 0.5;
}
// shortcuts, although they're really dumb
if (t === 0) {
return new Bezier(p2, p2, p3);
}
if (t === 1) {
return new Bezier(p1, p2, p2);
}
// real fitting.
const abc = Bezier.getABC(2, p1, p2, p3, t);
return new Bezier(p1, abc.A, p3);
}
static cubicFromPoints(S, B, E, t, d1) {
if (typeof t === "undefined") {
t = 0.5;
}
const abc = Bezier.getABC(3, S, B, E, t);
if (typeof d1 === "undefined") {
d1 = utils.dist(B, abc.C);
}
const d2 = (d1 * (1 - t)) / t;
const selen = utils.dist(S, E),
lx = (E.x - S.x) / selen,
ly = (E.y - S.y) / selen,
bx1 = d1 * lx,
by1 = d1 * ly,
bx2 = d2 * lx,
by2 = d2 * ly;
// derivation of new hull coordinates
const e1 = { x: B.x - bx1, y: B.y - by1 },
e2 = { x: B.x + bx2, y: B.y + by2 },
A = abc.A,
v1 = { x: A.x + (e1.x - A.x) / (1 - t), y: A.y + (e1.y - A.y) / (1 - t) },
v2 = { x: A.x + (e2.x - A.x) / t, y: A.y + (e2.y - A.y) / t },
nc1 = { x: S.x + (v1.x - S.x) / t, y: S.y + (v1.y - S.y) / t },
nc2 = {
x: E.x + (v2.x - E.x) / (1 - t),
y: E.y + (v2.y - E.y) / (1 - t),
};
// ...done
return new Bezier(S, nc1, nc2, E);
}
static getUtils() {
return utils;
}
getUtils() {
return Bezier.getUtils();
}
static get PolyBezier() {
return PolyBezier;
}
valueOf() {
return this.toString();
}
toString() {
return utils.pointsToString(this.points);
}
toSVG() {
if (this._3d) return false;
const p = this.points,
x = p[0].x,
y = p[0].y,
s = ["M", x, y, this.order === 2 ? "Q" : "C"];
for (let i = 1, last = p.length; i < last; i++) {
s.push(p[i].x);
s.push(p[i].y);
}
return s.join(" ");
}
setRatios(ratios) {
if (ratios.length !== this.points.length) {
throw new Error("incorrect number of ratio values");
}
this.ratios = ratios;
this._lut = []; // invalidate any precomputed LUT
}
verify() {
const print = this.coordDigest();
if (print !== this._print) {
this._print = print;
this.update();
}
}
coordDigest() {
return this.points
.map(function (c, pos) {
return "" + pos + c.x + c.y + (c.z ? c.z : 0);
})
.join("");
}
update() {
// invalidate any precomputed LUT
this._lut = [];
this.dpoints = utils.derive(this.points, this._3d);
this.computedirection();
}
computedirection() {
const points = this.points;
const angle = utils.angle(points[0], points[this.order], points[1]);
this.clockwise = angle > 0;
}
length() {
return utils.length(this.derivative.bind(this));
}
static getABC(order = 2, S, B, E, t = 0.5) {
const u = utils.projectionratio(t, order),
um = 1 - u,
C = {
x: u * S.x + um * E.x,
y: u * S.y + um * E.y,
},
s = utils.abcratio(t, order),
A = {
x: B.x + (B.x - C.x) / s,
y: B.y + (B.y - C.y) / s,
};
return { A, B, C, S, E };
}
getABC(t, B) {
B = B || this.get(t);
let S = this.points[0];
let E = this.points[this.order];
return Bezier.getABC(this.order, S, B, E, t);
}
getLUT(steps) {
this.verify();
steps = steps || 100;
if (this._lut.length === steps + 1) {
return this._lut;
}
this._lut = [];
// n steps means n+1 points
steps++;
this._lut = [];
for (let i = 0, p, t; i < steps; i++) {
t = i / (steps - 1);
p = this.compute(t);
p.t = t;
this._lut.push(p);
}
return this._lut;
}
on(point, error) {
error = error || 5;
const lut = this.getLUT(),
hits = [];
for (let i = 0, c, t = 0; i < lut.length; i++) {
c = lut[i];
if (utils.dist(c, point) < error) {
hits.push(c);
t += i / lut.length;
}
}
if (!hits.length) return false;
return (t /= hits.length);
}
project(point) {
// step 1: coarse check
const LUT = this.getLUT(),
l = LUT.length - 1,
closest = utils.closest(LUT, point),
mpos = closest.mpos,
t1 = (mpos - 1) / l,
t2 = (mpos + 1) / l,
step = 0.1 / l;
// step 2: fine check
let mdist = closest.mdist,
t = t1,
ft = t,
p;
mdist += 1;
for (let d; t < t2 + step; t += step) {
p = this.compute(t);
d = utils.dist(point, p);
if (d < mdist) {
mdist = d;
ft = t;
}
}
ft = ft < 0 ? 0 : ft > 1 ? 1 : ft;
p = this.compute(ft);
p.t = ft;
p.d = mdist;
return p;
}
get(t) {
return this.compute(t);
}
point(idx) {
return this.points[idx];
}
compute(t) {
if (this.ratios) {
return utils.computeWithRatios(t, this.points, this.ratios, this._3d);
}
return utils.compute(t, this.points, this._3d, this.ratios);
}
raise() {
const p = this.points,
np = [p[0]],
k = p.length;
for (let i = 1, pi, pim; i < k; i++) {
pi = p[i];
pim = p[i - 1];
np[i] = {
x: ((k - i) / k) * pi.x + (i / k) * pim.x,
y: ((k - i) / k) * pi.y + (i / k) * pim.y,
};
}
np[k] = p[k - 1];
return new Bezier(np);
}
derivative(t) {
return utils.compute(t, this.dpoints[0], this._3d);
}
dderivative(t) {
return utils.compute(t, this.dpoints[1], this._3d);
}
align() {
let p = this.points;
return new Bezier(utils.align(p, { p1: p[0], p2: p[p.length - 1] }));
}
curvature(t) {
return utils.curvature(t, this.dpoints[0], this.dpoints[1], this._3d);
}
inflections() {
return utils.inflections(this.points);
}
normal(t) {
return this._3d ? this.__normal3(t) : this.__normal2(t);
}
__normal2(t) {
const d = this.derivative(t);
const q = sqrt(d.x * d.x + d.y * d.y);
return { t, x: -d.y / q, y: d.x / q };
}
__normal3(t) {
// see http://stackoverflow.com/questions/25453159
const r1 = this.derivative(t),
r2 = this.derivative(t + 0.01),
q1 = sqrt(r1.x * r1.x + r1.y * r1.y + r1.z * r1.z),
q2 = sqrt(r2.x * r2.x + r2.y * r2.y + r2.z * r2.z);
r1.x /= q1;
r1.y /= q1;
r1.z /= q1;
r2.x /= q2;
r2.y /= q2;
r2.z /= q2;
// cross product
const c = {
x: r2.y * r1.z - r2.z * r1.y,
y: r2.z * r1.x - r2.x * r1.z,
z: r2.x * r1.y - r2.y * r1.x,
};
const m = sqrt(c.x * c.x + c.y * c.y + c.z * c.z);
c.x /= m;
c.y /= m;
c.z /= m;
// rotation matrix
const R = [
c.x * c.x,
c.x * c.y - c.z,
c.x * c.z + c.y,
c.x * c.y + c.z,
c.y * c.y,
c.y * c.z - c.x,
c.x * c.z - c.y,
c.y * c.z + c.x,
c.z * c.z,
];
// normal vector:
const n = {
t,
x: R[0] * r1.x + R[1] * r1.y + R[2] * r1.z,
y: R[3] * r1.x + R[4] * r1.y + R[5] * r1.z,
z: R[6] * r1.x + R[7] * r1.y + R[8] * r1.z,
};
return n;
}
hull(t) {
let p = this.points,
_p = [],
q = [],
idx = 0;
q[idx++] = p[0];
q[idx++] = p[1];
q[idx++] = p[2];
if (this.order === 3) {
q[idx++] = p[3];
}
// we lerp between all points at each iteration, until we have 1 point left.
while (p.length > 1) {
_p = [];
for (let i = 0, pt, l = p.length - 1; i < l; i++) {
pt = utils.lerp(t, p[i], p[i + 1]);
q[idx++] = pt;
_p.push(pt);
}
p = _p;
}
return q;
}
split(t1, t2) {
// shortcuts
if (t1 === 0 && !!t2) {
return this.split(t2).left;
}
if (t2 === 1) {
return this.split(t1).right;
}
// no shortcut: use "de Casteljau" iteration.
const q = this.hull(t1);
const result = {
left:
this.order === 2
? new Bezier([q[0], q[3], q[5]])
: new Bezier([q[0], q[4], q[7], q[9]]),
right:
this.order === 2
? new Bezier([q[5], q[4], q[2]])
: new Bezier([q[9], q[8], q[6], q[3]]),
span: q,
};
// make sure we bind _t1/_t2 information!
result.left._t1 = utils.map(0, 0, 1, this._t1, this._t2);
result.left._t2 = utils.map(t1, 0, 1, this._t1, this._t2);
result.right._t1 = utils.map(t1, 0, 1, this._t1, this._t2);
result.right._t2 = utils.map(1, 0, 1, this._t1, this._t2);
// if we have no t2, we're done
if (!t2) {
return result;
}
// if we have a t2, split again:
t2 = utils.map(t2, t1, 1, 0, 1);
return result.right.split(t2).left;
}
extrema() {
const result = {};
let roots = [];
this.dims.forEach(
function (dim) {
let mfn = function (v) {
return v[dim];
};
let p = this.dpoints[0].map(mfn);
result[dim] = utils.droots(p);
if (this.order === 3) {
p = this.dpoints[1].map(mfn);
result[dim] = result[dim].concat(utils.droots(p));
}
result[dim] = result[dim].filter(function (t) {
return t >= 0 && t <= 1;
});
roots = roots.concat(result[dim].sort(utils.numberSort));
}.bind(this)
);
result.values = roots.sort(utils.numberSort).filter(function (v, idx) {
return roots.indexOf(v) === idx;
});
return result;
}
bbox() {
const extrema = this.extrema(),
result = {};
this.dims.forEach(
function (d) {
result[d] = utils.getminmax(this, d, extrema[d]);
}.bind(this)
);
return result;
}
overlaps(curve) {
const lbbox = this.bbox(),
tbbox = curve.bbox();
return utils.bboxoverlap(lbbox, tbbox);
}
offset(t, d) {
if (typeof d !== "undefined") {
const c = this.get(t),
n = this.normal(t);
const ret = {
c: c,
n: n,
x: c.x + n.x * d,
y: c.y + n.y * d,
};
if (this._3d) {
ret.z = c.z + n.z * d;
}
return ret;
}
if (this._linear) {
const nv = this.normal(0),
coords = this.points.map(function (p) {
const ret = {
x: p.x + t * nv.x,
y: p.y + t * nv.y,
};
if (p.z && nv.z) {
ret.z = p.z + t * nv.z;
}
return ret;
});
return [new Bezier(coords)];
}
return this.reduce().map(function (s) {
if (s._linear) {
return s.offset(t)[0];
}
return s.scale(t);
});
}
simple() {
if (this.order === 3) {
const a1 = utils.angle(this.points[0], this.points[3], this.points[1]);
const a2 = utils.angle(this.points[0], this.points[3], this.points[2]);
if ((a1 > 0 && a2 < 0) || (a1 < 0 && a2 > 0)) return false;
}
const n1 = this.normal(0);
const n2 = this.normal(1);
let s = n1.x * n2.x + n1.y * n2.y;
if (this._3d) {
s += n1.z * n2.z;
}
return abs(acos(s)) < pi / 3;
}
reduce() {
// TODO: examine these var types in more detail...
let i,
t1 = 0,
t2 = 0,
step = 0.01,
segment,
pass1 = [],
pass2 = [];
// first pass: split on extrema
let extrema = this.extrema().values;
if (extrema.indexOf(0) === -1) {
extrema = [0].concat(extrema);
}
if (extrema.indexOf(1) === -1) {
extrema.push(1);
}
for (t1 = extrema[0], i = 1; i < extrema.length; i++) {
t2 = extrema[i];
segment = this.split(t1, t2);
segment._t1 = t1;
segment._t2 = t2;
pass1.push(segment);
t1 = t2;
}
// second pass: further reduce these segments to simple segments
pass1.forEach(function (p1) {
t1 = 0;
t2 = 0;
while (t2 <= 1) {
for (t2 = t1 + step; t2 <= 1 + step; t2 += step) {
segment = p1.split(t1, t2);
if (!segment.simple()) {
t2 -= step;
if (abs(t1 - t2) < step) {
// we can never form a reduction
return [];
}
segment = p1.split(t1, t2);
segment._t1 = utils.map(t1, 0, 1, p1._t1, p1._t2);
segment._t2 = utils.map(t2, 0, 1, p1._t1, p1._t2);
pass2.push(segment);
t1 = t2;
break;
}
}
}
if (t1 < 1) {
segment = p1.split(t1, 1);
segment._t1 = utils.map(t1, 0, 1, p1._t1, p1._t2);
segment._t2 = p1._t2;
pass2.push(segment);
}
});
return pass2;
}
translate(v, d1, d2) {
d2 = typeof d2 === "number" ? d2 : d1;
// TODO: make this take curves with control points outside
// of the start-end interval into account
const o = this.order;
let d = this.points.map((_, i) => (1 - i / o) * d1 + (i / o) * d2);
return new Bezier(
this.points.map((p, i) => ({
x: p.x + v.x * d[i],
y: p.y + v.y * d[i],
}))
);
}
scale(d) {
const order = this.order;
let distanceFn = false;
if (typeof d === "function") {
distanceFn = d;
}
if (distanceFn && order === 2) {
return this.raise().scale(distanceFn);
}
// TODO: add special handling for non-linear degenerate curves.
const clockwise = this.clockwise;
const points = this.points;
if (this._linear) {
return this.translate(
this.normal(0),
distanceFn ? distanceFn(0) : d,
distanceFn ? distanceFn(1) : d
);
}
const r1 = distanceFn ? distanceFn(0) : d;
const r2 = distanceFn ? distanceFn(1) : d;
const v = [this.offset(0, 10), this.offset(1, 10)];
const np = [];
const o = utils.lli4(v[0], v[0].c, v[1], v[1].c);
if (!o) {
throw new Error("cannot scale this curve. Try reducing it first.");
}
// move all points by distance 'd' wrt the origin 'o',
// and move end points by fixed distance along normal.
[0, 1].forEach(function (t) {
const p = (np[t * order] = utils.copy(points[t * order]));
p.x += (t ? r2 : r1) * v[t].n.x;
p.y += (t ? r2 : r1) * v[t].n.y;
});
if (!distanceFn) {
// move control points to lie on the intersection of the offset
// derivative vector, and the origin-through-control vector
[0, 1].forEach((t) => {
if (order === 2 && !!t) return;
const p = np[t * order];
const d = this.derivative(t);
const p2 = { x: p.x + d.x, y: p.y + d.y };
np[t + 1] = utils.lli4(p, p2, o, points[t + 1]);
});
return new Bezier(np);
}
// move control points by "however much necessary to
// ensure the correct tangent to endpoint".
[0, 1].forEach(function (t) {
if (order === 2 && !!t) return;
var p = points[t + 1];
var ov = {
x: p.x - o.x,
y: p.y - o.y,
};
var rc = distanceFn ? distanceFn((t + 1) / order) : d;
if (distanceFn && !clockwise) rc = -rc;
var m = sqrt(ov.x * ov.x + ov.y * ov.y);
ov.x /= m;
ov.y /= m;
np[t + 1] = {
x: p.x + rc * ov.x,
y: p.y + rc * ov.y,
};
});
return new Bezier(np);
}
outline(d1, d2, d3, d4) {
d2 = d2 === undefined ? d1 : d2;
if (this._linear) {
// TODO: find the actual extrema, because they might
// be before the start, or past the end.
const n = this.normal(0);
const start = this.points[0];
const end = this.points[this.points.length - 1];
let s, mid, e;
if (d3 === undefined) {
d3 = d1;
d4 = d2;
}
s = { x: start.x + n.x * d1, y: start.y + n.y * d1 };
e = { x: end.x + n.x * d3, y: end.y + n.y * d3 };
mid = { x: (s.x + e.x) / 2, y: (s.y + e.y) / 2 };
const fline = [s, mid, e];
s = { x: start.x - n.x * d2, y: start.y - n.y * d2 };
e = { x: end.x - n.x * d4, y: end.y - n.y * d4 };
mid = { x: (s.x + e.x) / 2, y: (s.y + e.y) / 2 };
const bline = [e, mid, s];
const ls = utils.makeline(bline[2], fline[0]);
const le = utils.makeline(fline[2], bline[0]);
const segments = [ls, new Bezier(fline), le, new Bezier(bline)];
return new PolyBezier(segments);
}
const reduced = this.reduce(),
len = reduced.length,
fcurves = [];
let bcurves = [],
p,
alen = 0,
tlen = this.length();
const graduated = typeof d3 !== "undefined" && typeof d4 !== "undefined";
function linearDistanceFunction(s, e, tlen, alen, slen) {
return function (v) {
const f1 = alen / tlen,
f2 = (alen + slen) / tlen,
d = e - s;
return utils.map(v, 0, 1, s + f1 * d, s + f2 * d);
};
}
// form curve oulines
reduced.forEach(function (segment) {
const slen = segment.length();
if (graduated) {
fcurves.push(
segment.scale(linearDistanceFunction(d1, d3, tlen, alen, slen))
);
bcurves.push(
segment.scale(linearDistanceFunction(-d2, -d4, tlen, alen, slen))
);
} else {
fcurves.push(segment.scale(d1));
bcurves.push(segment.scale(-d2));
}
alen += slen;
});
// reverse the "return" outline
bcurves = bcurves
.map(function (s) {
p = s.points;
if (p[3]) {
s.points = [p[3], p[2], p[1], p[0]];
} else {
s.points = [p[2], p[1], p[0]];
}
return s;
})
.reverse();
// form the endcaps as lines
const fs = fcurves[0].points[0],
fe = fcurves[len - 1].points[fcurves[len - 1].points.length - 1],
bs = bcurves[len - 1].points[bcurves[len - 1].points.length - 1],
be = bcurves[0].points[0],
ls = utils.makeline(bs, fs),
le = utils.makeline(fe, be),
segments = [ls].concat(fcurves).concat([le]).concat(bcurves);
return new PolyBezier(segments);
}
outlineshapes(d1, d2, curveIntersectionThreshold) {
d2 = d2 || d1;
const outline = this.outline(d1, d2).curves;
const shapes = [];
for (let i = 1, len = outline.length; i < len / 2; i++) {
const shape = utils.makeshape(
outline[i],
outline[len - i],
curveIntersectionThreshold
);
shape.startcap.virtual = i > 1;
shape.endcap.virtual = i < len / 2 - 1;
shapes.push(shape);
}
return shapes;
}
intersects(curve, curveIntersectionThreshold) {
if (!curve) return this.selfintersects(curveIntersectionThreshold);
if (curve.p1 && curve.p2) {
return this.lineIntersects(curve);
}
if (curve instanceof Bezier) {
curve = curve.reduce();
}
return this.curveintersects(
this.reduce(),
curve,
curveIntersectionThreshold
);
}
lineIntersects(line) {
const mx = min(line.p1.x, line.p2.x),
my = min(line.p1.y, line.p2.y),
MX = max(line.p1.x, line.p2.x),
MY = max(line.p1.y, line.p2.y);
return utils.roots(this.points, line).filter((t) => {
var p = this.get(t);
return utils.between(p.x, mx, MX) && utils.between(p.y, my, MY);
});
}
selfintersects(curveIntersectionThreshold) {
// "simple" curves cannot intersect with their direct
// neighbour, so for each segment X we check whether
// it intersects [0:x-2][x+2:last].
const reduced = this.reduce(),
len = reduced.length - 2,
results = [];
for (let i = 0, result, left, right; i < len; i++) {
left = reduced.slice(i, i + 1);
right = reduced.slice(i + 2);
result = this.curveintersects(left, right, curveIntersectionThreshold);
results.push(...result);
}
return results;
}
curveintersects(c1, c2, curveIntersectionThreshold) {
const pairs = [];
// step 1: pair off any overlapping segments
c1.forEach(function (l) {
c2.forEach(function (r) {
if (l.overlaps(r)) {
pairs.push({ left: l, right: r });
}
});
});
// step 2: for each pairing, run through the convergence algorithm.
let intersections = [];
pairs.forEach(function (pair) {
const result = utils.pairiteration(
pair.left,
pair.right,
curveIntersectionThreshold
);
if (result.length > 0) {
intersections = intersections.concat(result);
}
});
return intersections;
}
arcs(errorThreshold) {
errorThreshold = errorThreshold || 0.5;
return this._iterate(errorThreshold, []);
}
_error(pc, np1, s, e) {
const q = (e - s) / 4,
c1 = this.get(s + q),
c2 = this.get(e - q),
ref = utils.dist(pc, np1),
d1 = utils.dist(pc, c1),
d2 = utils.dist(pc, c2);
return abs(d1 - ref) + abs(d2 - ref);
}
_iterate(errorThreshold, circles) {
let t_s = 0,
t_e = 1,
safety;
// we do a binary search to find the "good `t` closest to no-longer-good"
do {
safety = 0;
// step 1: start with the maximum possible arc
t_e = 1;
// points:
let np1 = this.get(t_s),
np2,
np3,
arc,
prev_arc;
// booleans:
let curr_good = false,
prev_good = false,
done;
// numbers:
let t_m = t_e,
prev_e = 1;
// step 2: find the best possible arc
do {
prev_good = curr_good;
prev_arc = arc;
t_m = (t_s + t_e) / 2;
np2 = this.get(t_m);
np3 = this.get(t_e);
arc = utils.getccenter(np1, np2, np3);
//also save the t values
arc.interval = {
start: t_s,
end: t_e,
};
let error = this._error(arc, np1, t_s, t_e);
curr_good = error <= errorThreshold;
done = prev_good && !curr_good;
if (!done) prev_e = t_e;
// this arc is fine: we can move 'e' up to see if we can find a wider arc
if (curr_good) {
// if e is already at max, then we're done for this arc.
if (t_e >= 1) {
// make sure we cap at t=1
arc.interval.end = prev_e = 1;
prev_arc = arc;
// if we capped the arc segment to t=1 we also need to make sure that
// the arc's end angle is correct with respect to the bezier end point.
if (t_e > 1) {
let d = {
x: arc.x + arc.r * cos(arc.e),
y: arc.y + arc.r * sin(arc.e),
};
arc.e += utils.angle({ x: arc.x, y: arc.y }, d, this.get(1));
}
break;
}
// if not, move it up by half the iteration distance
t_e = t_e + (t_e - t_s) / 2;
} else {
// this is a bad arc: we need to move 'e' down to find a good arc
t_e = t_m;
}
} while (!done && safety++ < 100);
if (safety >= 100) {
break;
}
// console.log("L835: [F] arc found", t_s, prev_e, prev_arc.x, prev_arc.y, prev_arc.s, prev_arc.e);
prev_arc = prev_arc ? prev_arc : arc;
circles.push(prev_arc);
t_s = prev_e;
} while (t_e < 1);
return circles;
}
}
function _iterableToArrayLimit(arr, i) {
var _i = null == arr ? null : "undefined" != typeof Symbol && arr[Symbol.iterator] || arr["@@iterator"];
if (null != _i) {
var _s,
_e,
_x,
_r,
_arr = [],
_n = !0,
_d = !1;
try {
if (_x = (_i = _i.call(arr)).next, 0 === i) {
if (Object(_i) !== _i) return;
_n = !1;
} else for (; !(_n = (_s = _x.call(_i)).done) && (_arr.push(_s.value), _arr.length !== i); _n = !0);
} catch (err) {
_d = !0, _e = err;
} finally {
try {
if (!_n && null != _i.return && (_r = _i.return(), Object(_r) !== _r)) return;
} finally {
if (_d) throw _e;
}
}
return _arr;
}
}
function _objectWithoutPropertiesLoose(source, excluded) {
if (source == null) return {};
var target = {};
var sourceKeys = Object.keys(source);
var key, i;
for (i = 0; i < sourceKeys.length; i++) {
key = sourceKeys[i];
if (excluded.indexOf(key) >= 0) continue;
target[key] = source[key];
}
return target;
}
function _objectWithoutProperties(source, excluded) {
if (source == null) return {};
var target = _objectWithoutPropertiesLoose(source, excluded);
var key, i;
if (Object.getOwnPropertySymbols) {
var sourceSymbolKeys = Object.getOwnPropertySymbols(source);
for (i = 0; i < sourceSymbolKeys.length; i++) {
key = sourceSymbolKeys[i];
if (excluded.indexOf(key) >= 0) continue;
if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue;
target[key] = source[key];
}
}
return target;
}
function _slicedToArray(arr, i) {
return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest();
}
function _toConsumableArray(arr) {
return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread();
}
function _arrayWithoutHoles(arr) {
if (Array.isArray(arr)) return _arrayLikeToArray(arr);
}
function _arrayWithHoles(arr) {
if (Array.isArray(arr)) return arr;
}
function _iterableToArray(iter) {
if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter);
}
function _unsupportedIterableToArray(o, minLen) {
if (!o) return;
if (typeof o === "string") return _arrayLikeToArray(o, minLen);
var n = Object.prototype.toString.call(o).slice(8, -1);
if (n === "Object" && o.constructor) n = o.constructor.name;
if (n === "Map" || n === "Set") return Array.from(o);
if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
}
function _arrayLikeToArray(arr, len) {
if (len == null || len > arr.length) len = arr.length;
for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
return arr2;
}
function _nonIterableSpread() {
throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}
function _nonIterableRest() {
throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}
function _toPrimitive(input, hint) {
if (typeof input !== "object" || input === null) return input;
var prim = input[Symbol.toPrimitive];
if (prim !== undefined) {
var res = prim.call(input, hint || "default");
if (typeof res !== "object") return res;
throw new TypeError("@@toPrimitive must return a primitive value.");
}
return (hint === "string" ? String : Number)(input);
}
function _toPropertyKey(arg) {
var key = _toPrimitive(arg, "string");
return typeof key === "symbol" ? key : String(key);
}
var index = (function () {
var list = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
var keyAccessors = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
var multiItem = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
var flattenKeys = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
var keys = (keyAccessors instanceof Array ? keyAccessors.length ? keyAccessors : [undefined] : [keyAccessors]).map(function (key) {
return {
keyAccessor: key,
isProp: !(key instanceof Function)
};
});
var indexedResult = list.reduce(function (res, item) {
var iterObj = res;
var itemVal = item;
keys.forEach(function (_ref, idx) {
var keyAccessor = _ref.keyAccessor,
isProp = _ref.isProp;
var key;
if (isProp) {
var _itemVal = itemVal,
propVal = _itemVal[keyAccessor],
rest = _objectWithoutProperties(_itemVal, [keyAccessor].map(_toPropertyKey));
key = propVal;
itemVal = rest;
} else {
key = keyAccessor(itemVal, idx);
}
if (idx + 1 < keys.length) {
if (!iterObj.hasOwnProperty(key)) {
iterObj[key] = {};
}
iterObj = iterObj[key];
} else {
// Leaf key
if (multiItem) {
if (!iterObj.hasOwnProperty(key)) {
iterObj[key] = [];
}
iterObj[key].push(itemVal);
} else {
iterObj[key] = itemVal;
}
}
});
return res;
}, {});
if (multiItem instanceof Function) {
// Reduce leaf multiple values
(function reduce(node) {
var level = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
if (level === keys.length) {
Object.keys(node).forEach(function (k) {
return node[k] = multiItem(node[k]);
});
} else {
Object.values(node).forEach(function (child) {
return reduce(child, level + 1);
});
}
})(indexedResult); // IIFE
}
var result = indexedResult;
if (flattenKeys) {
// flatten into array
result = [];
(function flatten(node) {
var accKeys = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
if (accKeys.length === keys.length) {
result.push({
keys: accKeys,
vals: node
});
} else {
Object.entries(node).forEach(function (_ref2) {
var _ref3 = _slicedToArray(_ref2, 2),
key = _ref3[0],
val = _ref3[1];
return flatten(val, [].concat(_toConsumableArray(accKeys), [key]));
});
}
})(indexedResult); //IIFE
if (keyAccessors instanceof Array && keyAccessors.length === 0 && result.length === 1) {
// clear keys if there's no key accessors (single result)
result[0].keys = [];
}
}
return result;
});
function initRange(domain, range) {
switch (arguments.length) {
case 0: break;
case 1: this.range(domain); break;
default: this.range(range).domain(domain); break;
}
return this;
}
const implicit = Symbol("implicit");
function ordinal() {
var index = new InternMap(),
domain = [],
range = [],
unknown = implicit;
function scale(d) {
let i = index.get(d);
if (i === undefined) {
if (unknown !== implicit) return unknown;
index.set(d, i = domain.push(d) - 1);
}
return range[i % range.length];
}
scale.domain = function(_) {
if (!arguments.length) return domain.slice();
domain = [], index = new InternMap();
for (const value of _) {
if (index.has(value)) continue;
index.set(value, domain.push(value) - 1);
}
return scale;
};
scale.range = function(_) {
return arguments.length ? (range = Array.from(_), scale) : range.slice();
};
scale.unknown = function(_) {
return arguments.length ? (unknown = _, scale) : unknown;
};
scale.copy = function() {
return ordinal(domain, range).unknown(unknown);
};
initRange.apply(scale, arguments);
return scale;
}
function colors(specifier) {
var n = specifier.length / 6 | 0, colors = new Array(n), i = 0;
while (i < n) colors[i] = "#" + specifier.slice(i * 6, ++i * 6);
return colors;
}
var schemePaired = colors("a6cee31f78b4b2df8a33a02cfb9a99e31a1cfdbf6fff7f00cab2d66a3d9affff99b15928");
var autoColorScale = ordinal(schemePaired);
// Autoset attribute colorField by colorByAccessor property
// If an object has already a color, don't set it
// Objects can be nodes or links
function autoColorObjects(objects, colorByAccessor, colorField) {
if (!colorByAccessor || typeof colorField !== 'string') return;
objects.filter(function (obj) {
return !obj[colorField];
}).forEach(function (obj) {
obj[colorField] = autoColorScale(colorByAccessor(obj));
});
}
function getDagDepths (_ref, idAccessor) {
var nodes = _ref.nodes,
links = _ref.links;
var _ref2 = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {},
_ref2$nodeFilter = _ref2.nodeFilter,
nodeFilter = _ref2$nodeFilter === void 0 ? function () {
return true;
} : _ref2$nodeFilter,
_ref2$onLoopError = _ref2.onLoopError,
onLoopError = _ref2$onLoopError === void 0 ? function (loopIds) {
throw "Invalid DAG structure! Found cycle in node path: ".concat(loopIds.join(' -> '), ".");
} : _ref2$onLoopError;
// linked graph
var graph = {};
nodes.forEach(function (node) {
return graph[idAccessor(node)] = {
data: node,
out: [],
depth: -1,
skip: !nodeFilter(node)
};
});
links.forEach(function (_ref3) {
var source = _ref3.source,
target = _ref3.target;
var sourceId = getNodeId(source);
var targetId = getNodeId(target);
if (!graph.hasOwnProperty(sourceId)) throw "Missing source node with id: ".concat(sourceId);
if (!graph.hasOwnProperty(targetId)) throw "Missing target node with id: ".concat(targetId);
var sourceNode = graph[sourceId];
var targetNode = graph[targetId];
sourceNode.out.push(targetNode);
function getNodeId(node) {
return _typeof$1(node) === 'object' ? idAccessor(node) : node;
}
});
var foundLoops = [];
traverse(Object.values(graph));
var nodeDepths = Object.assign.apply(Object, [{}].concat(_toConsumableArray$2(Object.entries(graph).filter(function (_ref4) {
var _ref5 = _slicedToArray$2(_ref4, 2),
node = _ref5[1];
return !node.skip;
}).map(function (_ref6) {
var _ref7 = _slicedToArray$2(_ref6, 2),
id = _ref7[0],
node = _ref7[1];
return _defineProperty({}, id, node.depth);
}))));
return nodeDepths;
function traverse(nodes) {
var nodeStack = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
var currentDepth = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
var _loop = function _loop() {
var node = nodes[i];
if (nodeStack.indexOf(node) !== -1) {
var loop = [].concat(_toConsumableArray$2(nodeStack.slice(nodeStack.indexOf(node))), [node]).map(function (d) {
return idAccessor(d.data);
});
if (!foundLoops.some(function (foundLoop) {
return foundLoop.length === loop.length && foundLoop.every(function (id, idx) {
return id === loop[idx];
});
})) {
foundLoops.push(loop);
onLoopError(loop);
}
return 1; // continue
}
if (currentDepth > node.depth) {
// Don't unnecessarily revisit chunks of the graph
node.depth = currentDepth;
traverse(node.out, [].concat(_toConsumableArray$2(nodeStack), [node]), currentDepth + (node.skip ? 0 : 1));
}
};
for (var i = 0, l = nodes.length; i < l; i++) {
if (_loop()) continue;
}
}
}
//
var DAG_LEVEL_NODE_RATIO = 2;
// whenever styling props are changed that require a canvas redraw
var notifyRedraw = function notifyRedraw(_, state) {
return state.onNeedsRedraw && state.onNeedsRedraw();
};
var updDataPhotons = function updDataPhotons(_, state) {
if (!state.isShadow) {
// Add photon particles
var linkParticlesAccessor = index$2(state.linkDirectionalParticles);
state.graphData.links.forEach(function (link) {
var numPhotons = Math.round(Math.abs(linkParticlesAccessor(link)));
if (numPhotons) {
link.__photons = _toConsumableArray$2(Array(numPhotons)).map(function () {
return {};
});
} else {
delete link.__photons;
}
});
}
};
var CanvasForceGraph = index$3({
props: {
graphData: {
"default": {
nodes: [],
links: []
},
onChange: function onChange(_, state) {
state.engineRunning = false; // Pause simulation
updDataPhotons(_, state);
}
},
dagMode: {
onChange: function onChange(dagMode, state) {
// td, bu, lr, rl, radialin, radialout
!dagMode && (state.graphData.nodes || []).forEach(function (n) {
return n.fx = n.fy = undefined;
}); // unfix nodes when disabling dag mode
}
},
dagLevelDistance: {},
dagNodeFilter: {
"default": function _default(node) {
return true;
}
},
onDagError: {
triggerUpdate: false
},
nodeRelSize: {
"default": 4,
triggerUpdate: false,
onChange: notifyRedraw
},
// area per val unit
nodeId: {
"default": 'id'
},
nodeVal: {
"default": 'val',
triggerUpdate: false,
onChange: notifyRedraw
},
nodeColor: {
"default": 'color',
triggerUpdate: false,
onChange: notifyRedraw
},
nodeAutoColorBy: {},
nodeCanvasObject: {
triggerUpdate: false,
onChange: notifyRedraw
},
nodeCanvasObjectMode: {
"default": function _default() {
return 'replace';
},
triggerUpdate: false,
onChange: notifyRedraw
},
nodeVisibility: {
"default": true,
triggerUpdate: false,
onChange: notifyRedraw
},
linkSource: {
"default": 'source'
},
linkTarget: {
"default": 'target'
},
linkVisibility: {
"default": true,
triggerUpdate: false,
onChange: notifyRedraw
},
linkColor: {
"default": 'color',
triggerUpdate: false,
onChange: notifyRedraw
},
linkAutoColorBy: {},
linkLineDash: {
triggerUpdate: false,
onChange: notifyRedraw
},
linkWidth: {
"default": 1,
triggerUpdate: false,
onChange: notifyRedraw
},
linkCurvature: {
"default": 0,
triggerUpdate: false,
onChange: notifyRedraw
},
linkCanvasObject: {
triggerUpdate: false,
onChange: notifyRedraw
},
linkCanvasObjectMode: {
"default": function _default() {
return 'replace';
},
triggerUpdate: false,
onChange: notifyRedraw
},
linkDirectionalArrowLength: {
"default": 0,
triggerUpdate: false,
onChange: notifyRedraw
},
linkDirectionalArrowColor: {
triggerUpdate: false,
onChange: notifyRedraw
},
linkDirectionalArrowRelPos: {
"default": 0.5,
triggerUpdate: false,
onChange: notifyRedraw
},
// value between 0<>1 indicating the relative pos along the (exposed) line
linkDirectionalParticles: {
"default": 0,
triggerUpdate: false,
onChange: updDataPhotons
},
// animate photons travelling in the link direction
linkDirectionalParticleSpeed: {
"default": 0.01,
triggerUpdate: false
},
// in link length ratio per frame
linkDirectionalParticleWidth: {
"default": 4,
triggerUpdate: false
},
linkDirectionalParticleColor: {
triggerUpdate: false
},
globalScale: {
"default": 1,
triggerUpdate: false
},
d3AlphaMin: {
"default": 0,
triggerUpdate: false
},
d3AlphaDecay: {
"default": 0.0228,
triggerUpdate: false,
onChange: function onChange(alphaDecay, state) {
state.forceLayout.alphaDecay(alphaDecay);
}
},
d3AlphaTarget: {
"default": 0,
triggerUpdate: false,
onChange: function onChange(alphaTarget, state) {
state.forceLayout.alphaTarget(alphaTarget);
}
},
d3VelocityDecay: {
"default": 0.4,
triggerUpdate: false,
onChange: function onChange(velocityDecay, state) {
state.forceLayout.velocityDecay(velocityDecay);
}
},
warmupTicks: {
"default": 0,
triggerUpdate: false
},
// how many times to tick the force engine at init before starting to render
cooldownTicks: {
"default": Infinity,
triggerUpdate: false
},
cooldownTime: {
"default": 15000,
triggerUpdate: false
},
// ms
onUpdate: {
"default": function _default() {},
triggerUpdate: false
},
onFinishUpdate: {
"default": function _default() {},
triggerUpdate: false
},
onEngineTick: {
"default": function _default() {},
triggerUpdate: false
},
onEngineStop: {
"default": function _default() {},
triggerUpdate: false
},
onNeedsRedraw: {
triggerUpdate: false
},
isShadow: {
"default": false,
triggerUpdate: false
}
},
methods: {
// Expose d3 forces for external manipulation
d3Force: function d3Force(state, forceName, forceFn) {
if (forceFn === undefined) {
return state.forceLayout.force(forceName); // Force getter
}
state.forceLayout.force(forceName, forceFn); // Force setter
return this;
},
d3ReheatSimulation: function d3ReheatSimulation(state) {
state.forceLayout.alpha(1);
this.resetCountdown();
return this;
},
// reset cooldown state
resetCountdown: function resetCountdown(state) {
state.cntTicks = 0;
state.startTickTime = new Date();
state.engineRunning = true;
return this;
},
isEngineRunning: function isEngineRunning(state) {
return !!state.engineRunning;
},
tickFrame: function tickFrame(state) {
!state.isShadow && layoutTick();
paintLinks();
!state.isShadow && paintArrows();
!state.isShadow && paintPhotons();
paintNodes();
return this;
//
function layoutTick() {
if (state.engineRunning) {
if (++state.cntTicks > state.cooldownTicks || new Date() - state.startTickTime > state.cooldownTime || state.d3AlphaMin > 0 && state.forceLayout.alpha() < state.d3AlphaMin) {
state.engineRunning = false; // Stop ticking graph
state.onEngineStop();
} else {
state.forceLayout.tick(); // Tick it
state.onEngineTick();
}
}
}
function paintNodes() {
var getVisibility = index$2(state.nodeVisibility);
var getVal = index$2(state.nodeVal);
var getColor = index$2(state.nodeColor);
var getNodeCanvasObjectMode = index$2(state.nodeCanvasObjectMode);
var ctx = state.ctx;
// Draw wider nodes by 1px on shadow canvas for more precise hovering (due to boundary anti-aliasing)
var padAmount = state.isShadow / state.globalScale;
var visibleNodes = state.graphData.nodes.filter(getVisibility);
ctx.save();
visibleNodes.forEach(function (node) {
var nodeCanvasObjectMode = getNodeCanvasObjectMode(node);
if (state.nodeCanvasObject && (nodeCanvasObjectMode === 'before' || nodeCanvasObjectMode === 'replace')) {
// Custom node before/replace paint
state.nodeCanvasObject(node, ctx, state.globalScale);
if (nodeCanvasObjectMode === 'replace') {
ctx.restore();
return;
}
}
// Draw wider nodes by 1px on shadow canvas for more precise hovering (due to boundary anti-aliasing)
var r = Math.sqrt(Math.max(0, getVal(node) || 1)) * state.nodeRelSize + padAmount;
ctx.beginPath();
ctx.arc(node.x, node.y, r, 0, 2 * Math.PI, false);
ctx.fillStyle = getColor(node) || 'rgba(31, 120, 180, 0.92)';
ctx.fill();
if (state.nodeCanvasObject && nodeCanvasObjectMode === 'after') {
// Custom node after paint
state.nodeCanvasObject(node, state.ctx, state.globalScale);
}
});
ctx.restore();
}
function paintLinks() {
var getVisibility = index$2(state.linkVisibility);
var getColor = index$2(state.linkColor);
var getWidth = index$2(state.linkWidth);
var getLineDash = index$2(state.linkLineDash);
var getCurvature = index$2(state.linkCurvature);
var getLinkCanvasObjectMode = index$2(state.linkCanvasObjectMode);
var ctx = state.ctx;
// Draw wider lines by 2px on shadow canvas for more precise hovering (due to boundary anti-aliasing)
var padAmount = state.isShadow * 2;
var visibleLinks = state.graphData.links.filter(getVisibility);
visibleLinks.forEach(calcLinkControlPoints); // calculate curvature control points for all visible links
var beforeCustomLinks = [],
afterCustomLinks = [],
defaultPaintLinks = visibleLinks;
if (state.linkCanvasObject) {
var replaceCustomLinks = [],
otherCustomLinks = [];
visibleLinks.forEach(function (d) {
return ({
before: beforeCustomLinks,
after: afterCustomLinks,
replace: replaceCustomLinks
}[getLinkCanvasObjectMode(d)] || otherCustomLinks).push(d);
});
defaultPaintLinks = [].concat(_toConsumableArray$2(beforeCustomLinks), afterCustomLinks, otherCustomLinks);
beforeCustomLinks = beforeCustomLinks.concat(replaceCustomLinks);
}
// Custom link before paints
ctx.save();
beforeCustomLinks.forEach(function (link) {
return state.linkCanvasObject(link, ctx, state.globalScale);
});
ctx.restore();
// Bundle strokes per unique color/width/dash for performance optimization
var linksPerColor = index(defaultPaintLinks, [getColor, getWidth, getLineDash]);
ctx.save();
Object.entries(linksPerColor).forEach(function (_ref) {
var _ref2 = _slicedToArray$2(_ref, 2),
color = _ref2[0],
linksPerWidth = _ref2[1];
var lineColor = !color || color === 'undefined' ? 'rgba(0,0,0,0.15)' : color;
Object.entries(linksPerWidth).forEach(function (_ref3) {
var _ref4 = _slicedToArray$2(_ref3, 2),
width = _ref4[0],
linesPerLineDash = _ref4[1];
var lineWidth = (width || 1) / state.globalScale + padAmount;
Object.entries(linesPerLineDash).forEach(function (_ref5) {
var _ref6 = _slicedToArray$2(_ref5, 2);
_ref6[0];
var links = _ref6[1];
var lineDashSegments = getLineDash(links[0]);
ctx.beginPath();
links.forEach(function (link) {
var start = link.source;
var end = link.target;
if (!start || !end || !start.hasOwnProperty('x') || !end.hasOwnProperty('x')) return; // skip invalid link
ctx.moveTo(start.x, start.y);
var controlPoints = link.__controlPoints;
if (!controlPoints) {
// Straight line
ctx.lineTo(end.x, end.y);
} else {
// Use quadratic curves for regular lines and bezier for loops
ctx[controlPoints.length === 2 ? 'quadraticCurveTo' : 'bezierCurveTo'].apply(ctx, _toConsumableArray$2(controlPoints).concat([end.x, end.y]));
}
});
ctx.strokeStyle = lineColor;
ctx.lineWidth = lineWidth;
ctx.setLineDash(lineDashSegments || []);
ctx.stroke();
});
});
});
ctx.restore();
// Custom link after paints
ctx.save();
afterCustomLinks.forEach(function (link) {
return state.linkCanvasObject(link, ctx, state.globalScale);
});
ctx.restore();
//
function calcLinkControlPoints(link) {
var curvature = getCurvature(link);
if (!curvature) {
// straight line
link.__controlPoints = null;
return;
}
var start = link.source;
var end = link.target;
if (!start || !end || !start.hasOwnProperty('x') || !end.hasOwnProperty('x')) return; // skip invalid link
var l = Math.sqrt(Math.pow(end.x - start.x, 2) + Math.pow(end.y - start.y, 2)); // line length
if (l > 0) {
var a = Math.atan2(end.y - start.y, end.x - start.x); // line angle
var d = l * curvature; // control point distance
var cp = {
// control point
x: (start.x + end.x) / 2 + d * Math.cos(a - Math.PI / 2),
y: (start.y + end.y) / 2 + d * Math.sin(a - Math.PI / 2)
};
link.__controlPoints = [cp.x, cp.y];
} else {
// Same point, draw a loop
var _d = curvature * 70;
link.__controlPoints = [end.x, end.y - _d, end.x + _d, end.y];
}
}
}
function paintArrows() {
var ARROW_WH_RATIO = 1.6;
var ARROW_VLEN_RATIO = 0.2;
var getLength = index$2(state.linkDirectionalArrowLength);
var getRelPos = index$2(state.linkDirectionalArrowRelPos);
var getVisibility = index$2(state.linkVisibility);
var getColor = index$2(state.linkDirectionalArrowColor || state.linkColor);
var getNodeVal = index$2(state.nodeVal);
var ctx = state.ctx;
ctx.save();
state.graphData.links.filter(getVisibility).forEach(function (link) {
var arrowLength = getLength(link);
if (!arrowLength || arrowLength < 0) return;
var start = link.source;
var end = link.target;
if (!start || !end || !start.hasOwnProperty('x') || !end.hasOwnProperty('x')) return; // skip invalid link
var startR = Math.sqrt(Math.max(0, getNodeVal(start) || 1)) * state.nodeRelSize;
var endR = Math.sqrt(Math.max(0, getNodeVal(end) || 1)) * state.nodeRelSize;
var arrowRelPos = Math.min(1, Math.max(0, getRelPos(link)));
var arrowColor = getColor(link) || 'rgba(0,0,0,0.28)';
var arrowHalfWidth = arrowLength / ARROW_WH_RATIO / 2;
// Construct bezier for curved lines
var bzLine = link.__controlPoints && _construct(Bezier, [start.x, start.y].concat(_toConsumableArray$2(link.__controlPoints), [end.x, end.y]));
var getCoordsAlongLine = bzLine ? function (t) {
return bzLine.get(t);
} // get position along bezier line
: function (t) {
return {
// straight line: interpolate linearly
x: start.x + (end.x - start.x) * t || 0,
y: start.y + (end.y - start.y) * t || 0
};
};
var lineLen = bzLine ? bzLine.length() : Math.sqrt(Math.pow(end.x - start.x, 2) + Math.pow(end.y - start.y, 2));
var posAlongLine = startR + arrowLength + (lineLen - startR - endR - arrowLength) * arrowRelPos;
var arrowHead = getCoordsAlongLine(posAlongLine / lineLen);
var arrowTail = getCoordsAlongLine((posAlongLine - arrowLength) / lineLen);
var arrowTailVertex = getCoordsAlongLine((posAlongLine - arrowLength * (1 - ARROW_VLEN_RATIO)) / lineLen);
var arrowTailAngle = Math.atan2(arrowHead.y - arrowTail.y, arrowHead.x - arrowTail.x) - Math.PI / 2;
ctx.beginPath();
ctx.moveTo(arrowHead.x, arrowHead.y);
ctx.lineTo(arrowTail.x + arrowHalfWidth * Math.cos(arrowTailAngle), arrowTail.y + arrowHalfWidth * Math.sin(arrowTailAngle));
ctx.lineTo(arrowTailVertex.x, arrowTailVertex.y);
ctx.lineTo(arrowTail.x - arrowHalfWidth * Math.cos(arrowTailAngle), arrowTail.y - arrowHalfWidth * Math.sin(arrowTailAngle));
ctx.fillStyle = arrowColor;
ctx.fill();
});
ctx.restore();
}
function paintPhotons() {
var getNumPhotons = index$2(state.linkDirectionalParticles);
var getSpeed = index$2(state.linkDirectionalParticleSpeed);
var getDiameter = index$2(state.linkDirectionalParticleWidth);
var getVisibility = index$2(state.linkVisibility);
var getColor = index$2(state.linkDirectionalParticleColor || state.linkColor);
var ctx = state.ctx;
ctx.save();
state.graphData.links.filter(getVisibility).forEach(function (link) {
var numCyclePhotons = getNumPhotons(link);
if (!link.hasOwnProperty('__photons') || !link.__photons.length) return;
var start = link.source;
var end = link.target;
if (!start || !end || !start.hasOwnProperty('x') || !end.hasOwnProperty('x')) return; // skip invalid link
var particleSpeed = getSpeed(link);
var photons = link.__photons || [];
var photonR = Math.max(0, getDiameter(link) / 2) / Math.sqrt(state.globalScale);
var photonColor = getColor(link) || 'rgba(0,0,0,0.28)';
ctx.fillStyle = photonColor;
// Construct bezier for curved lines
var bzLine = link.__controlPoints ? _construct(Bezier, [start.x, start.y].concat(_toConsumableArray$2(link.__controlPoints), [end.x, end.y])) : null;
var cyclePhotonIdx = 0;
var needsCleanup = false; // whether some photons need to be removed from list
photons.forEach(function (photon) {
var singleHop = !!photon.__singleHop;
if (!photon.hasOwnProperty('__progressRatio')) {
photon.__progressRatio = singleHop ? 0 : cyclePhotonIdx / numCyclePhotons;
}
!singleHop && cyclePhotonIdx++; // increase regular photon index
photon.__progressRatio += particleSpeed;
if (photon.__progressRatio >= 1) {
if (!singleHop) {
photon.__progressRatio = photon.__progressRatio % 1;
} else {
needsCleanup = true;
return;
}
}
var photonPosRatio = photon.__progressRatio;
var coords = bzLine ? bzLine.get(photonPosRatio) // get position along bezier line
: {
// straight line: interpolate linearly
x: start.x + (end.x - start.x) * photonPosRatio || 0,
y: start.y + (end.y - start.y) * photonPosRatio || 0
};
ctx.beginPath();
ctx.arc(coords.x, coords.y, photonR, 0, 2 * Math.PI, false);
ctx.fill();
});
if (needsCleanup) {
// remove expired single hop photons
link.__photons = link.__photons.filter(function (photon) {
return !photon.__singleHop || photon.__progressRatio <= 1;
});
}
});
ctx.restore();
}
},
emitParticle: function emitParticle(state, link) {
if (link) {
!link.__photons && (link.__photons = []);
link.__photons.push({
__singleHop: true
}); // add a single hop particle
}
return this;
}
},
stateInit: function stateInit() {
return {
forceLayout: d3ForceSimulation().force('link', d3ForceLink()).force('charge', d3ForceManyBody()).force('center', d3ForceCenter()).force('dagRadial', null).stop(),
engineRunning: false
};
},
init: function init(canvasCtx, state) {
// Main canvas object to manipulate
state.ctx = canvasCtx;
},
update: function update(state) {
state.engineRunning = false; // Pause simulation
state.onUpdate();
if (state.nodeAutoColorBy !== null) {
// Auto add color to uncolored nodes
autoColorObjects(state.graphData.nodes, index$2(state.nodeAutoColorBy), state.nodeColor);
}
if (state.linkAutoColorBy !== null) {
// Auto add color to uncolored links
autoColorObjects(state.graphData.links, index$2(state.linkAutoColorBy), state.linkColor);
}
// parse links
state.graphData.links.forEach(function (link) {
link.source = link[state.linkSource];
link.target = link[state.linkTarget];
});
// Feed data to force-directed layout
state.forceLayout.stop().alpha(1) // re-heat the simulation
.nodes(state.graphData.nodes);
// add links (if link force is still active)
var linkForce = state.forceLayout.force('link');
if (linkForce) {
linkForce.id(function (d) {
return d[state.nodeId];
}).links(state.graphData.links);
}
// setup dag force constraints
var nodeDepths = state.dagMode && getDagDepths(state.graphData, function (node) {
return node[state.nodeId];
}, {
nodeFilter: state.dagNodeFilter,
onLoopError: state.onDagError || undefined
});
var maxDepth = Math.max.apply(Math, _toConsumableArray$2(Object.values(nodeDepths || [])));
var dagLevelDistance = state.dagLevelDistance || state.graphData.nodes.length / (maxDepth || 1) * DAG_LEVEL_NODE_RATIO * (['radialin', 'radialout'].indexOf(state.dagMode) !== -1 ? 0.7 : 1);
// Fix nodes to x,y for dag mode
if (state.dagMode) {
var getFFn = function getFFn(fix, invert) {
return function (node) {
return !fix ? undefined : (nodeDepths[node[state.nodeId]] - maxDepth / 2) * dagLevelDistance * (invert ? -1 : 1);
};
};
var fxFn = getFFn(['lr', 'rl'].indexOf(state.dagMode) !== -1, state.dagMode === 'rl');
var fyFn = getFFn(['td', 'bu'].indexOf(state.dagMode) !== -1, state.dagMode === 'bu');
state.graphData.nodes.filter(state.dagNodeFilter).forEach(function (node) {
node.fx = fxFn(node);
node.fy = fyFn(node);
});
}
// Use radial force for radial dags
state.forceLayout.force('dagRadial', ['radialin', 'radialout'].indexOf(state.dagMode) !== -1 ? d3ForceRadial(function (node) {
var nodeDepth = nodeDepths[node[state.nodeId]] || -1;
return (state.dagMode === 'radialin' ? maxDepth - nodeDepth : nodeDepth) * dagLevelDistance;
}).strength(function (node) {
return state.dagNodeFilter(node) ? 1 : 0;
}) : null);
for (var i = 0; i < state.warmupTicks && !(state.d3AlphaMin > 0 && state.forceLayout.alpha() < state.d3AlphaMin); i++) {
state.forceLayout.tick();
} // Initial ticks before starting to render
this.resetCountdown();
state.onFinishUpdate();
}
});
function linkKapsule (kapsulePropNames, kapsuleType) {
var propNames = kapsulePropNames instanceof Array ? kapsulePropNames : [kapsulePropNames];
var dummyK = new kapsuleType(); // To extract defaults
dummyK._destructor && dummyK._destructor();
return {
linkProp: function linkProp(prop) {
// link property config
return {
"default": dummyK[prop](),
onChange: function onChange(v, state) {
propNames.forEach(function (propName) {
return state[propName][prop](v);
});
},
triggerUpdate: false
};
},
linkMethod: function linkMethod(method) {
// link method pass-through
return function (state) {
for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
args[_key - 1] = arguments[_key];
}
var returnVals = [];
propNames.forEach(function (propName) {
var kapsuleInstance = state[propName];
var returnVal = kapsuleInstance[method].apply(kapsuleInstance, args);
if (returnVal !== kapsuleInstance) {
returnVals.push(returnVal);
}
});
return returnVals.length ? returnVals[0] : this; // chain based on the parent object, not the inner kapsule
};
}
};
}
var HOVER_CANVAS_THROTTLE_DELAY = 800; // ms to throttle shadow canvas updates for perf improvement
var ZOOM2NODES_FACTOR = 4;
// Expose config from forceGraph
var bindFG = linkKapsule('forceGraph', CanvasForceGraph);
var bindBoth = linkKapsule(['forceGraph', 'shadowGraph'], CanvasForceGraph);
var linkedProps = Object.assign.apply(Object, _toConsumableArray$2(['nodeColor', 'nodeAutoColorBy', 'nodeCanvasObject', 'nodeCanvasObjectMode', 'linkColor', 'linkAutoColorBy', 'linkLineDash', 'linkWidth', 'linkCanvasObject', 'linkCanvasObjectMode', 'linkDirectionalArrowLength', 'linkDirectionalArrowColor', 'linkDirectionalArrowRelPos', 'linkDirectionalParticles', 'linkDirectionalParticleSpeed', 'linkDirectionalParticleWidth', 'linkDirectionalParticleColor', 'dagMode', 'dagLevelDistance', 'dagNodeFilter', 'onDagError', 'd3AlphaMin', 'd3AlphaDecay', 'd3VelocityDecay', 'warmupTicks', 'cooldownTicks', 'cooldownTime', 'onEngineTick', 'onEngineStop'].map(function (p) {
return _defineProperty({}, p, bindFG.linkProp(p));
})).concat(_toConsumableArray$2(['nodeRelSize', 'nodeId', 'nodeVal', 'nodeVisibility', 'linkSource', 'linkTarget', 'linkVisibility', 'linkCurvature'].map(function (p) {
return _defineProperty({}, p, bindBoth.linkProp(p));
}))));
var linkedMethods = Object.assign.apply(Object, _toConsumableArray$2(['d3Force', 'd3ReheatSimulation', 'emitParticle'].map(function (p) {
return _defineProperty({}, p, bindFG.linkMethod(p));
})));
function adjustCanvasSize(state) {
if (state.canvas) {
var curWidth = state.canvas.width;
var curHeight = state.canvas.height;
if (curWidth === 300 && curHeight === 150) {
// Default canvas dimensions
curWidth = curHeight = 0;
}
var pxScale = window.devicePixelRatio; // 2 on retina displays
curWidth /= pxScale;
curHeight /= pxScale;
// Resize canvases
[state.canvas, state.shadowCanvas].forEach(function (canvas) {
// Element size
canvas.style.width = "".concat(state.width, "px");
canvas.style.height = "".concat(state.height, "px");
// Memory size (scaled to avoid blurriness)
canvas.width = state.width * pxScale;
canvas.height = state.height * pxScale;
// Normalize coordinate system to use css pixels (on init only)
if (!curWidth && !curHeight) {
canvas.getContext('2d').scale(pxScale, pxScale);
}
});
// Relative center panning based on 0,0
var k = transform(state.canvas).k;
state.zoom.translateBy(state.zoom.__baseElem, (state.width - curWidth) / 2 / k, (state.height - curHeight) / 2 / k);
state.needsRedraw = true;
}
}
function resetTransform(ctx) {
var pxRatio = window.devicePixelRatio;
ctx.setTransform(pxRatio, 0, 0, pxRatio, 0, 0);
}
function clearCanvas(ctx, width, height) {
ctx.save();
resetTransform(ctx); // reset transform
ctx.clearRect(0, 0, width, height);
ctx.restore(); //restore transforms
}
//
var forceGraph = index$3({
props: _objectSpread2({
width: {
"default": window.innerWidth,
onChange: function onChange(_, state) {
return adjustCanvasSize(state);
},
triggerUpdate: false
},
height: {
"default": window.innerHeight,
onChange: function onChange(_, state) {
return adjustCanvasSize(state);
},
triggerUpdate: false
},
graphData: {
"default": {
nodes: [],
links: []
},
onChange: function onChange(d, state) {
[{
type: 'Node',
objs: d.nodes
}, {
type: 'Link',
objs: d.links
}].forEach(hexIndex);
state.forceGraph.graphData(d);
state.shadowGraph.graphData(d);
function hexIndex(_ref4) {
var type = _ref4.type,
objs = _ref4.objs;
objs.filter(function (d) {
if (!d.hasOwnProperty('__indexColor')) return true;
var cur = state.colorTracker.lookup(d.__indexColor);
return !cur || !cur.hasOwnProperty('d') || cur.d !== d;
}).forEach(function (d) {
// store object lookup color
d.__indexColor = state.colorTracker.register({
type: type,
d: d
});
});
}
},
triggerUpdate: false
},
backgroundColor: {
onChange: function onChange(color, state) {
state.canvas && color && (state.canvas.style.background = color);
},
triggerUpdate: false
},
nodeLabel: {
"default": 'name',
triggerUpdate: false
},
nodePointerAreaPaint: {
onChange: function onChange(paintFn, state) {
state.shadowGraph.nodeCanvasObject(!paintFn ? null : function (node, ctx, globalScale) {
return paintFn(node, node.__indexColor, ctx, globalScale);
});
state.flushShadowCanvas && state.flushShadowCanvas();
},
triggerUpdate: false
},
linkPointerAreaPaint: {
onChange: function onChange(paintFn, state) {
state.shadowGraph.linkCanvasObject(!paintFn ? null : function (link, ctx, globalScale) {
return paintFn(link, link.__indexColor, ctx, globalScale);
});
state.flushShadowCanvas && state.flushShadowCanvas();
},
triggerUpdate: false
},
linkLabel: {
"default": 'name',
triggerUpdate: false
},
linkHoverPrecision: {
"default": 4,
triggerUpdate: false
},
minZoom: {
"default": 0.01,
onChange: function onChange(minZoom, state) {
state.zoom.scaleExtent([minZoom, state.zoom.scaleExtent()[1]]);
},
triggerUpdate: false
},
maxZoom: {
"default": 1000,
onChange: function onChange(maxZoom, state) {
state.zoom.scaleExtent([state.zoom.scaleExtent()[0], maxZoom]);
},
triggerUpdate: false
},
enableNodeDrag: {
"default": true,
triggerUpdate: false
},
enableZoomInteraction: {
"default": true,
triggerUpdate: false
},
enablePanInteraction: {
"default": true,
triggerUpdate: false
},
enableZoomPanInteraction: {
"default": true,
triggerUpdate: false
},
// to be deprecated
enablePointerInteraction: {
"default": true,
onChange: function onChange(_, state) {
state.hoverObj = null;
},
triggerUpdate: false
},
autoPauseRedraw: {
"default": true,
triggerUpdate: false
},
onNodeDrag: {
"default": function _default() {},
triggerUpdate: false
},
onNodeDragEnd: {
"default": function _default() {},
triggerUpdate: false
},
onNodeClick: {
triggerUpdate: false
},
onNodeRightClick: {
triggerUpdate: false
},
onNodeHover: {
triggerUpdate: false
},
onLinkClick: {
triggerUpdate: false
},
onLinkRightClick: {
triggerUpdate: false
},
onLinkHover: {
triggerUpdate: false
},
onBackgroundClick: {
triggerUpdate: false
},
onBackgroundRightClick: {
triggerUpdate: false
},
onZoom: {
triggerUpdate: false
},
onZoomEnd: {
triggerUpdate: false
},
onRenderFramePre: {
triggerUpdate: false
},
onRenderFramePost: {
triggerUpdate: false
}
}, linkedProps),
aliases: {
// Prop names supported for backwards compatibility
stopAnimation: 'pauseAnimation'
},
methods: _objectSpread2({
graph2ScreenCoords: function graph2ScreenCoords(state, x, y) {
var t = transform(state.canvas);
return {
x: x * t.k + t.x,
y: y * t.k + t.y
};
},
screen2GraphCoords: function screen2GraphCoords(state, x, y) {
var t = transform(state.canvas);
return {
x: (x - t.x) / t.k,
y: (y - t.y) / t.k
};
},
centerAt: function centerAt(state, x, y, transitionDuration) {
if (!state.canvas) return null; // no canvas yet
// setter
if (x !== undefined || y !== undefined) {
var finalPos = Object.assign({}, x !== undefined ? {
x: x
} : {}, y !== undefined ? {
y: y
} : {});
if (!transitionDuration) {
// no animation
setCenter(finalPos);
} else {
new Tween(getCenter()).to(finalPos, transitionDuration).easing(Easing.Quadratic.Out).onUpdate(setCenter).start();
}
return this;
}
// getter
return getCenter();
//
function getCenter() {
var t = transform(state.canvas);
return {
x: (state.width / 2 - t.x) / t.k,
y: (state.height / 2 - t.y) / t.k
};
}
function setCenter(_ref5) {
var x = _ref5.x,
y = _ref5.y;
state.zoom.translateTo(state.zoom.__baseElem, x === undefined ? getCenter().x : x, y === undefined ? getCenter().y : y);
state.needsRedraw = true;
}
},
zoom: function zoom(state, k, transitionDuration) {
if (!state.canvas) return null; // no canvas yet
// setter
if (k !== undefined) {
if (!transitionDuration) {
// no animation
setZoom(k);
} else {
new Tween({
k: getZoom()
}).to({
k: k
}, transitionDuration).easing(Easing.Quadratic.Out).onUpdate(function (_ref6) {
var k = _ref6.k;
return setZoom(k);
}).start();
}
return this;
}
// getter
return getZoom();
//
function getZoom() {
return transform(state.canvas).k;
}
function setZoom(k) {
state.zoom.scaleTo(state.zoom.__baseElem, k);
state.needsRedraw = true;
}
},
zoomToFit: function zoomToFit(state) {
var transitionDuration = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
var padding = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 10;
for (var _len = arguments.length, bboxArgs = new Array(_len > 3 ? _len - 3 : 0), _key = 3; _key < _len; _key++) {
bboxArgs[_key - 3] = arguments[_key];
}
var bbox = this.getGraphBbox.apply(this, bboxArgs);
if (bbox) {
var center = {
x: (bbox.x[0] + bbox.x[1]) / 2,
y: (bbox.y[0] + bbox.y[1]) / 2
};
var zoomK = Math.max(1e-12, Math.min(1e12, (state.width - padding * 2) / (bbox.x[1] - bbox.x[0]), (state.height - padding * 2) / (bbox.y[1] - bbox.y[0])));
this.centerAt(center.x, center.y, transitionDuration);
this.zoom(zoomK, transitionDuration);
}
return this;
},
getGraphBbox: function getGraphBbox(state) {
var nodeFilter = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : function () {
return true;
};
var getVal = index$2(state.nodeVal);
var getR = function getR(node) {
return Math.sqrt(Math.max(0, getVal(node) || 1)) * state.nodeRelSize;
};
var nodesPos = state.graphData.nodes.filter(nodeFilter).map(function (node) {
return {
x: node.x,
y: node.y,
r: getR(node)
};
});
return !nodesPos.length ? null : {
x: [min$1(nodesPos, function (node) {
return node.x - node.r;
}), max$1(nodesPos, function (node) {
return node.x + node.r;
})],
y: [min$1(nodesPos, function (node) {
return node.y - node.r;
}), max$1(nodesPos, function (node) {
return node.y + node.r;
})]
};
},
pauseAnimation: function pauseAnimation(state) {
if (state.animationFrameRequestId) {
cancelAnimationFrame(state.animationFrameRequestId);
state.animationFrameRequestId = null;
}
return this;
},
resumeAnimation: function resumeAnimation(state) {
if (!state.animationFrameRequestId) {
this._animationCycle();
}
return this;
},
_destructor: function _destructor() {
this.pauseAnimation();
this.graphData({
nodes: [],
links: []
});
}
}, linkedMethods),
stateInit: function stateInit() {
return {
lastSetZoom: 1,
zoom: d3Zoom(),
forceGraph: new CanvasForceGraph(),
shadowGraph: new CanvasForceGraph().cooldownTicks(0).nodeColor('__indexColor').linkColor('__indexColor').isShadow(true),
colorTracker: new _default() // indexed objects for rgb lookup
};
},
init: function init(domNode, state) {
var _this = this;
// Wipe DOM
domNode.innerHTML = '';
// Container anchor for canvas and tooltip
var container = document.createElement('div');
container.classList.add('force-graph-container');
container.style.position = 'relative';
domNode.appendChild(container);
state.canvas = document.createElement('canvas');
if (state.backgroundColor) state.canvas.style.background = state.backgroundColor;
container.appendChild(state.canvas);
state.shadowCanvas = document.createElement('canvas');
// Show shadow canvas
//state.shadowCanvas.style.position = 'absolute';
//state.shadowCanvas.style.top = '0';
//state.shadowCanvas.style.left = '0';
//container.appendChild(state.shadowCanvas);
var ctx = state.canvas.getContext('2d');
var shadowCtx = state.shadowCanvas.getContext('2d', {
willReadFrequently: true
});
var pointerPos = {
x: -1e12,
y: -1e12
};
var getObjUnderPointer = function getObjUnderPointer() {
var obj = null;
var pxScale = window.devicePixelRatio;
var px = pointerPos.x > 0 && pointerPos.y > 0 ? shadowCtx.getImageData(pointerPos.x * pxScale, pointerPos.y * pxScale, 1, 1) : null;
// Lookup object per pixel color
px && (obj = state.colorTracker.lookup(px.data));
return obj;
};
// Setup node drag interaction
d3Select(state.canvas).call(d3Drag().subject(function () {
if (!state.enableNodeDrag) {
return null;
}
var obj = getObjUnderPointer();
return obj && obj.type === 'Node' ? obj.d : null; // Only drag nodes
}).on('start', function (ev) {
var obj = ev.subject;
obj.__initialDragPos = {
x: obj.x,
y: obj.y,
fx: obj.fx,
fy: obj.fy
};
// keep engine running at low intensity throughout drag
if (!ev.active) {
obj.fx = obj.x;
obj.fy = obj.y; // Fix points
}
// drag cursor
state.canvas.classList.add('grabbable');
}).on('drag', function (ev) {
var obj = ev.subject;
var initPos = obj.__initialDragPos;
var dragPos = ev;
var k = transform(state.canvas).k;
var translate = {
x: initPos.x + (dragPos.x - initPos.x) / k - obj.x,
y: initPos.y + (dragPos.y - initPos.y) / k - obj.y
};
// Move fx/fy (and x/y) of nodes based on the scaled drag distance since the drag start
['x', 'y'].forEach(function (c) {
return obj["f".concat(c)] = obj[c] = initPos[c] + (dragPos[c] - initPos[c]) / k;
});
// prevent freeze while dragging
state.forceGraph.d3AlphaTarget(0.3) // keep engine running at low intensity throughout drag
.resetCountdown(); // prevent freeze while dragging
state.isPointerDragging = true;
obj.__dragged = true;
state.onNodeDrag(obj, translate);
}).on('end', function (ev) {
var obj = ev.subject;
var initPos = obj.__initialDragPos;
var translate = {
x: obj.x - initPos.x,
y: obj.y - initPos.y
};
if (initPos.fx === undefined) {
obj.fx = undefined;
}
if (initPos.fy === undefined) {
obj.fy = undefined;
}
delete obj.__initialDragPos;
if (state.forceGraph.d3AlphaTarget()) {
state.forceGraph.d3AlphaTarget(0) // release engine low intensity
.resetCountdown(); // let the engine readjust after releasing fixed nodes
}
// drag cursor
state.canvas.classList.remove('grabbable');
state.isPointerDragging = false;
if (obj.__dragged) {
delete obj.__dragged;
state.onNodeDragEnd(obj, translate);
}
}));
// Setup zoom / pan interaction
state.zoom(state.zoom.__baseElem = d3Select(state.canvas)); // Attach controlling elem for easy access
state.zoom.__baseElem.on('dblclick.zoom', null); // Disable double-click to zoom
state.zoom.filter(function (ev) {
return (
// disable zoom interaction
!ev.button && state.enableZoomPanInteraction && (state.enableZoomInteraction || ev.type !== 'wheel') && (state.enablePanInteraction || ev.type === 'wheel')
);
}).on('zoom', function (ev) {
var t = ev.transform;
[ctx, shadowCtx].forEach(function (c) {
resetTransform(c);
c.translate(t.x, t.y);
c.scale(t.k, t.k);
});
state.onZoom && state.onZoom(_objectSpread2(_objectSpread2({}, t), _this.centerAt())); // report x,y coordinates relative to canvas center
state.needsRedraw = true;
}).on('end', function (ev) {
return state.onZoomEnd && state.onZoomEnd(_objectSpread2(_objectSpread2({}, ev.transform), _this.centerAt()));
});
adjustCanvasSize(state);
state.forceGraph.onNeedsRedraw(function () {
return state.needsRedraw = true;
}).onFinishUpdate(function () {
// re-zoom, if still in default position (not user modified)
if (transform(state.canvas).k === state.lastSetZoom && state.graphData.nodes.length) {
state.zoom.scaleTo(state.zoom.__baseElem, state.lastSetZoom = ZOOM2NODES_FACTOR / Math.cbrt(state.graphData.nodes.length));
state.needsRedraw = true;
}
});
// Setup tooltip
var toolTipElem = document.createElement('div');
toolTipElem.classList.add('graph-tooltip');
container.appendChild(toolTipElem);
// Capture pointer coords on move or touchstart
['pointermove', 'pointerdown'].forEach(function (evType) {
return container.addEventListener(evType, function (ev) {
if (evType === 'pointerdown') {
state.isPointerPressed = true; // track click state
state.pointerDownEvent = ev;
}
// detect pointer drag on canvas pan
!state.isPointerDragging && ev.type === 'pointermove' && state.onBackgroundClick // only bother detecting drags this way if background clicks are enabled (so they don't trigger accidentally on canvas panning)
&& (ev.pressure > 0 || state.isPointerPressed) // ev.pressure always 0 on Safari, so we use the isPointerPressed tracker
&& (ev.pointerType !== 'touch' || ev.movementX === undefined || [ev.movementX, ev.movementY].some(function (m) {
return Math.abs(m) > 1;
})) // relax drag trigger sensitivity on touch events
&& (state.isPointerDragging = true);
// update the pointer pos
var offset = getOffset(container);
pointerPos.x = ev.pageX - offset.left;
pointerPos.y = ev.pageY - offset.top;
// Move tooltip
toolTipElem.style.top = "".concat(pointerPos.y, "px");
toolTipElem.style.left = "".concat(pointerPos.x, "px");
// adjust horizontal position to not exceed canvas boundaries
toolTipElem.style.transform = "translate(-".concat(pointerPos.x / state.width * 100, "%, ").concat(
// flip to above if near bottom
state.height - pointerPos.y < 100 ? 'calc(-100% - 8px)' : '21px', ")");
//
function getOffset(el) {
var rect = el.getBoundingClientRect(),
scrollLeft = window.pageXOffset || document.documentElement.scrollLeft,
scrollTop = window.pageYOffset || document.documentElement.scrollTop;
return {
top: rect.top + scrollTop,
left: rect.left + scrollLeft
};
}
}, {
passive: true
});
});
// Handle click/touch events on nodes/links
container.addEventListener('pointerup', function (ev) {
state.isPointerPressed = false;
if (state.isPointerDragging) {
state.isPointerDragging = false;
return; // don't trigger click events after pointer drag (pan / node drag functionality)
}
var cbEvents = [ev, state.pointerDownEvent];
requestAnimationFrame(function () {
// trigger click events asynchronously, to allow hoverObj to be set (on frame)
if (ev.button === 0) {
// mouse left-click or touch
if (state.hoverObj) {
var fn = state["on".concat(state.hoverObj.type, "Click")];
fn && fn.apply(void 0, [state.hoverObj.d].concat(cbEvents));
} else {
state.onBackgroundClick && state.onBackgroundClick.apply(state, cbEvents);
}
}
if (ev.button === 2) {
// mouse right-click
if (state.hoverObj) {
var _fn = state["on".concat(state.hoverObj.type, "RightClick")];
_fn && _fn.apply(void 0, [state.hoverObj.d].concat(cbEvents));
} else {
state.onBackgroundRightClick && state.onBackgroundRightClick.apply(state, cbEvents);
}
}
});
}, {
passive: true
});
container.addEventListener('contextmenu', function (ev) {
if (!state.onBackgroundRightClick && !state.onNodeRightClick && !state.onLinkRightClick) return true; // default contextmenu behavior
ev.preventDefault();
return false;
});
state.forceGraph(ctx);
state.shadowGraph(shadowCtx);
//
var refreshShadowCanvas = throttle(function () {
// wipe canvas
clearCanvas(shadowCtx, state.width, state.height);
// Adjust link hover area
state.shadowGraph.linkWidth(function (l) {
return index$2(state.linkWidth)(l) + state.linkHoverPrecision;
});
// redraw
var t = transform(state.canvas);
state.shadowGraph.globalScale(t.k).tickFrame();
}, HOVER_CANVAS_THROTTLE_DELAY);
state.flushShadowCanvas = refreshShadowCanvas.flush; // hook to immediately invoke shadow canvas paint
// Kick-off renderer
(this._animationCycle = function animate() {
// IIFE
var doRedraw = !state.autoPauseRedraw || !!state.needsRedraw || state.forceGraph.isEngineRunning() || state.graphData.links.some(function (d) {
return d.__photons && d.__photons.length;
});
state.needsRedraw = false;
if (state.enablePointerInteraction) {
// Update tooltip and trigger onHover events
var obj = !state.isPointerDragging ? getObjUnderPointer() : null; // don't hover during drag
if (obj !== state.hoverObj) {
var prevObj = state.hoverObj;
var prevObjType = prevObj ? prevObj.type : null;
var objType = obj ? obj.type : null;
if (prevObjType && prevObjType !== objType) {
// Hover out
var fn = state["on".concat(prevObjType, "Hover")];
fn && fn(null, prevObj.d);
}
if (objType) {
// Hover in
var _fn2 = state["on".concat(objType, "Hover")];
_fn2 && _fn2(obj.d, prevObjType === objType ? prevObj.d : null);
}
var tooltipContent = obj ? index$2(state["".concat(obj.type.toLowerCase(), "Label")])(obj.d) || '' : '';
toolTipElem.style.visibility = tooltipContent ? 'visible' : 'hidden';
toolTipElem.innerHTML = tooltipContent;
// set pointer if hovered object is clickable
state.canvas.classList[obj && state["on".concat(objType, "Click")] || !obj && state.onBackgroundClick ? 'add' : 'remove']('clickable');
state.hoverObj = obj;
}
doRedraw && refreshShadowCanvas();
}
if (doRedraw) {
// Wipe canvas
clearCanvas(ctx, state.width, state.height);
// Frame cycle
var globalScale = transform(state.canvas).k;
state.onRenderFramePre && state.onRenderFramePre(ctx, globalScale);
state.forceGraph.globalScale(globalScale).tickFrame();
state.onRenderFramePost && state.onRenderFramePost(ctx, globalScale);
}
update(); // update canvas animation tweens
state.animationFrameRequestId = requestAnimationFrame(animate);
})();
},
update: function updateFn(state) {}
});
return forceGraph;
}));
//# sourceMappingURL=force-graph.js.map