mirror of
https://github.com/jhasse/poly2tri.git
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70 lines
2.5 KiB
Python
70 lines
2.5 KiB
Python
#!/usr/bin/env python2.6
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from framework import Game, draw_polygon, reset_zoom, draw_line
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from seidel import Triangulator
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class Poly2Tri(Game):
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screen_size = 800.0, 600.0
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def __init__(self):
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super(Poly2Tri, self).__init__(*self.screen_size)
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# Load point set
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file_name = "../data/star.dat"
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self.points = self.load_points(file_name)
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# Triangulate
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t1 = self.time
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seidel = Triangulator(self.points)
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dt = (self.time - t1) * 1000.0
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self.triangles = seidel.triangles()
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#self.trapezoids = seidel.trapezoids
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self.trapezoids = seidel.trapezoidal_map.map
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self.edges = seidel.edge_list
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print "time (ms) = %f , num triangles = %d" % (dt, len(self.triangles))
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self.main_loop()
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def update(self):
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pass
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def render(self):
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reset_zoom(2.1, (400, 100), self.screen_size)
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red = 255, 0, 0
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yellow = 255, 255, 0
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green = 0, 255, 0
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for t in self.triangles:
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draw_polygon(t, red)
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'''
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for t in self.trapezoids:
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verts = self.trapezoids[t].vertices()
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#verts = t.vertices()
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draw_polygon(verts, yellow)
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'''
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for e in self.edges:
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p1 = e.p.x, e.p.y
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p2 = e.q.x, e.q.y
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draw_line(p1, p2, green)
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#draw_polygon(self.points, green)
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def load_points(self, file_name):
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infile = open(file_name, "r")
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points = []
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while infile:
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line = infile.readline()
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s = line.split()
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if len(s) == 0:
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break
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points.append((float(s[0]), float(s[1])))
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return points
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spam = (544.80998999999997, 579.86046999999996), (544.80998999999997, 450.57477), (594.09569999999997, 450.57477), (643.38142000000005, 450.57477), (643.38142000000005, 525.26486999999997), (643.38142000000005, 599.95487000000003), (603.67391999999995, 654.55056999999999), (563.96655999999996, 709.14621999999997), (554.38819999999998, 709.14621999999997), (544.80998999999997, 709.14621999999997)
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eggs = [474.80999000000003, 555.15656999999999], [474.80999000000003, 530.87086999999997], [509.09570000000002, 530.87086999999997], [543.38142000000005, 530.87086999999997], [543.38142000000005, 555.15656999999999], [543.38142000000005, 579.44227000000001], [509.09570000000002, 579.44227000000001], [474.80999000000003, 579.44227000000001]
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if __name__ == '__main__':
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demo = Poly2Tri() |