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No harm in handling all segment types here

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This commit is contained in:
Simon Cozens 2021-02-18 11:23:24 +00:00
parent c17b1c9e9f
commit 2e211194c8
1 changed files with 7 additions and 3 deletions
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10
Lib/fontTools/misc/bezierTools.py
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@ -995,7 +995,11 @@ def _curve_bounds(c):
return calcCubicBounds(*c)
def _split_curve_at_t(c, t):
def _split_segment_at_t(c, t):
if len(c) == 2:
s, e = c
midpoint = linePointAtT(s, e, t)
return [ ( s, midpoint), (midpoint, e) ]
if len(c) == 3:
return splitQuadraticAtT(*c, t)
elif len(c) == 4:
@ -1025,11 +1029,11 @@ def _curve_curve_intersections_t(
if rectArea(bounds1) < precision and rectArea(bounds2) < precision:
return [(midpoint(range1), midpoint(range2))]
c11, c12 = _split_curve_at_t(curve1, 0.5)
c11, c12 = _split_segment_at_t(curve1, 0.5)
c11_range = (range1[0], midpoint(range1))
c12_range = (midpoint(range1), range1[1])
c21, c22 = _split_curve_at_t(curve2, 0.5)
c21, c22 = _split_segment_at_t(curve2, 0.5)
c21_range = (range2[0], midpoint(range2))
c22_range = (midpoint(range2), range2[1])