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[Arc] Improve handling of full rings

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Jan Petykiewicz 2026-02-15 01:34:56 -08:00
commit fe70d0574b
1 changed files with 6 additions and 1 deletions
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masque/shapes/arc.py
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@ -463,13 +463,18 @@ class Arc(PositionableImpl, Shape):
`[[a_min_inner, a_max_inner], [a_min_outer, a_max_outer]]`
"""
aa = []
d_angle = self.angles[1] - self.angles[0]
if abs(d_angle) >= 2 * pi:
# Full ring
return numpy.tile([0, 2 * pi], (2, 1)).astype(float)
for sgn in (-1, +1):
wh = sgn * self.width / 2.0
rx = self.radius_x + wh
ry = self.radius_y + wh
a0, a1 = (numpy.arctan2(rx * numpy.sin(ai), ry * numpy.cos(ai)) for ai in self.angles)
sign = numpy.sign(self.angles[1] - self.angles[0])
sign = numpy.sign(d_angle)
if sign != numpy.sign(a1 - a0):
a1 += sign * 2 * pi