def test_polygon_with_hole(self):
r = Region()
r.insert(Box(0, 0, 1000, 1000))
r -= Region(Box(250, 250, 700, 700))
fragments = frag.Fragments(r[0], 300)
self.assertEqual(
repr(fragments),
"(0,0;0,350),(0,350;0,650),(0,650;0,1000),(0,1000;350,1000),(350,1000;650,1000),(650,1000;1000,1000),(1000,1000;1000,650),(1000,650;1000,350),(1000,350;1000,0),(1000,0;650,0),(650,0;350,0),(350,0;0,0);(250,250;700,250),(700,250;700,700),(700,700;250,700),(250,700;250,250)"
)
poly = fragments.to_polygon()
self.assertEqual(str(poly), str(r[0]))
# apply alternating shifts
s = 10
for ff in fragments.fragments():
for f in ff:
f.move(s)
s = -s
poly = fragments.to_polygon()
self.assertEqual(
str(poly),
"(350,-10;350,10;-10,10;-10,350;10,350;10,650;-10,650;-10,990;350,990;350,1010;650,1010;650,990;1010,990;1010,650;990,650;990,350;1010,350;1010,10;650,10;650,-10/240,260;710,260;710,690;240,690)"
)
def test_lshaped_polygon(self):
r = Region()
r.insert(Box(0, 0, 1000, 500))
r.insert(Box(0, 0, 500, 1000))
r.merge()
fragments = frag.Fragments(r[0], 300)
self.assertEqual(
repr(fragments),
"(0,0;0,350),(0,350;0,650),(0,650;0,1000),(0,1000;500,1000),(500,1000;500,500),(500,500;1000,500),(1000,500;1000,0),(1000,0;650,0),(650,0;350,0),(350,0;0,0)"
)
poly = fragments.to_polygon()
self.assertEqual(str(poly), str(r[0]))
# apply alternating shifts
s = 10
for ff in fragments.fragments():
for f in ff:
f.move(s)
s = -s
poly = fragments.to_polygon()
self.assertEqual(
str(poly),
"(350,-10;350,10;-10,10;-10,350;10,350;10,650;-10,650;-10,990;510,990;510,490;1010,490;1010,10;650,10;650,-10)"
)
def test_basic2(self):
poly = Polygon(Box(0, 0, 500, 200))
fragments = frag.Fragments(poly, 300)
self.assertEqual(
repr(fragments),
"(0,0;0,200),(0,200;500,200),(500,200;500,0),(500,0;0,0)")
poly = fragments.to_polygon()
self.assertEqual(str(poly), "(0,0;0,200;500,200;500,0)")
def test_basic1(self):
poly = Polygon(Box(0, 0, 1000, 500))
fragments = frag.Fragments(poly, 300)
self.assertEqual(
repr(fragments),
"(0,0;0,500),(0,500;350,500),(350,500;650,500),(650,500;1000,500),(1000,500;1000,0),(1000,0;650,0),(650,0;350,0),(350,0;0,0)"
)
poly = fragments.to_polygon()
self.assertEqual(str(poly), "(0,0;0,500;1000,500;1000,0)")
def test_triangle(self):
pts = [Point(0, 0), Point(500, 500), Point(500, 0)]
poly_in = Polygon(pts)
fragments = frag.Fragments(poly_in, 300)
self.assertEqual(
repr(fragments),
"(0,0;250,250),(250,250;500,500),(500,500;500,0),(500,0;0,0)")
poly = fragments.to_polygon()
self.assertEqual(str(poly), str(poly_in))
# apply alternating shifts
s = 10
for ff in fragments.fragments():
for f in ff:
f.move(s)
s = -s
poly = fragments.to_polygon()
self.assertEqual(str(poly), "(-4,10;243,257;257,243;510,496;510,10)")