35 lines
854 B
Python
35 lines
854 B
Python
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#!/usr/bin/env python3
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from lyz_bezmisc import *
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from lyz_ffgeom import *
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def maxdist(xxx_todo_changeme):
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((p0x,p0y),(p1x,p1y),(p2x,p2y),(p3x,p3y)) = xxx_todo_changeme
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p0 = Point(p0x,p0y)
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p1 = Point(p1x,p1y)
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p2 = Point(p2x,p2y)
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p3 = Point(p3x,p3y)
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s1 = Segment(p0,p3)
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return max(s1.distanceToPoint(p1),s1.distanceToPoint(p2))
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def cspsubdiv(csp,flat):
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for sp in csp:
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subdiv(sp,flat)
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def subdiv(sp,flat,i=1):
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while i < len(sp):
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p0 = sp[i-1][1]
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p1 = sp[i-1][2]
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p2 = sp[i][0]
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p3 = sp[i][1]
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b = (p0,p1,p2,p3)
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m = maxdist(b)
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if m <= flat:
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i += 1
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else:
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one, two = beziersplitatt(b,0.5)
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sp[i-1][2] = one[1]
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sp[i][0] = two[2]
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p = [one[2],one[3],two[1]]
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sp[i:1] = [p]
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