Símbolo: farola moderna con dos rayos de luz entrelazados

tools/farola.py

@@ -0,0 +1,41 @@
+import math, sys
+NAR, AMA = "#f04e23", "#f2b705"
+
+def bordes(signo, t0, t1, n=24):
+    izq, der = [], []
+    for k in range(n + 1):
+        t = t0 + (t1 - t0) * k / n
+        y = 18 + 79 * t
+        a = 5 + 9 * t
+        cx = 72 + signo * a * math.cos(2 * math.pi * t)
+        w = 3 + 6 * t
+        izq.append((cx - w, y)); der.append((cx + w, y))
+    return izq, der
+
+def linea(pts):
+    return "M" + " L".join(f"{x:.1f},{y:.1f}" for x, y in pts)
+
+def cinta(signo, t0, t1):
+    izq, der = bordes(signo, t0, t1)
+    return linea(izq + der[::-1]) + " Z"
+
+def farola(ink="#111", fondo=None, nar=NAR, ama=AMA):
+    bg = f'<rect width="100" height="100" fill="{fondo}"/>' if fondo else ""
+    corte = fondo or "#fff"
+    def pieza(col, signo, t0, t1, arriba):
+        out = f'<path d="{cinta(signo, t0, t1)}" fill="{col}"/>'
+        if arriba:
+            izq, der = bordes(signo, t0, t1)
+            out += "".join(f'<path d="{linea(e)}" fill="none" stroke="{corte}" stroke-width="1.6" stroke-linecap="round"/>' for e in (izq, der))
+        return out
+    luz = (pieza(ama, 1, 0, .5, False) + pieza(nar, -1, 0, .5, True)
+           + pieza(nar, -1, .5, 1, False) + pieza(ama, 1, .5, 1, True))
+    poste = f'<path d="M24,100 V30 Q24,12 42,12 H58" fill="none" stroke="{ink}" stroke-width="7"/>'
+    cabeza = f'<path d="M54,7 H90 Q92,7 91,10 L88,16 H57 L53,10 Q52,7 54,7 Z" fill="{ink}"/>'
+    return f'<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" width="100" height="100">{bg}{luz}{poste}{cabeza}</svg>\n'
+
+if __name__ == "__main__":
+    d = sys.argv[1]
+    open(f"{d}/simbolo.svg", "w").write(farola())
+    open(f"{d}/simbolo-negativo.svg", "w").write(farola("#fff", "#111"))
+    open(f"{d}/simbolo-naranja.svg", "w").write(farola("#111", NAR, nar="#fff"))