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Avoid placing duplicate vertices when polygonizing an arc

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This commit is contained in:
Jan Petykiewicz 2020-12-20 20:40:59 -08:00
parent 0fce7fd099
commit bce3d9f37c
1 changed files with 6 additions and 2 deletions
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6
masque/shapes/arc.py
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@ -236,12 +236,16 @@ class Arc(Shape, metaclass=AutoSlots):
if poly_max_arclen is not None: if poly_max_arclen is not None:
n += [perimeter / poly_max_arclen] n += [perimeter / poly_max_arclen]
num_points = int(round(max(n))) num_points = int(round(max(n)))
wh = self.width / 2.0
if wh == r0 and r0 == r1:
thetas_inner = [0] # Don't generate multiple vertices if we're at the origin
else:
thetas_inner = numpy.linspace(a_ranges[0][1], a_ranges[0][0], num_points, endpoint=True) thetas_inner = numpy.linspace(a_ranges[0][1], a_ranges[0][0], num_points, endpoint=True)
thetas_outer = numpy.linspace(a_ranges[1][0], a_ranges[1][1], num_points, endpoint=True) thetas_outer = numpy.linspace(a_ranges[1][0], a_ranges[1][1], num_points, endpoint=True)
sin_th_i, cos_th_i = (numpy.sin(thetas_inner), numpy.cos(thetas_inner)) sin_th_i, cos_th_i = (numpy.sin(thetas_inner), numpy.cos(thetas_inner))
sin_th_o, cos_th_o = (numpy.sin(thetas_outer), numpy.cos(thetas_outer)) sin_th_o, cos_th_o = (numpy.sin(thetas_outer), numpy.cos(thetas_outer))
wh = self.width / 2.0
xs1 = (r0 + wh) * cos_th_o xs1 = (r0 + wh) * cos_th_o
ys1 = (r1 + wh) * sin_th_o ys1 = (r1 + wh) * sin_th_o