def test_centroid_clustered_verts(self):
verts = [(1, 0), (0.3, 0), (0.2, 0), (0.1, 0), (0, 0), (0, 0.1), (0, 0.2), (0, 0.3), (0, 1), (1, 1)]
self.assertEquals(centroid(verts), (0.5, 0.5), "bad centroid unitsquare")
def test_centroid_triangle_counterclockwise(self):
verts = [(2, 2), (4, 2), (6, 5)]
verts.reverse()
self.assertEquals(centroid(verts), (4, 3), "bad centroid big slanty square")
def test_centroid_regular_octagon(self):
verts = [(80, 90), (80, 110), (90, 120), (110, 120), (120, 110), (120, 90), (110, 80), (90, 80)]
self.assertEquals(centroid(verts), (100, 100), "bad centroid big slanty square")
def test_centroid_triangle(self):
verts = [(2, 2), (4, 2), (6, 5)]
self.assertEquals(centroid(verts), (4, 3), "bad centroid big slanty square")
def test_centroid_big_slanty_square(self):
verts = [(90, 100), (100, 110), (110, 100), (100, 90)]
self.assertEquals(centroid(verts), (100, 100), "bad centroid big slanty square")
def test_centroid_unit_square(self):
verts = [(0, 0), (0, 1), (1, 1), (1, 0)]
self.assertEquals(centroid(verts), (0.5, 0.5), "bad centroid unitsquare")
def get_centroid(self):
return centroid(self.verts)
def _centralize_verts(self):
center = centroid(self.verts)
self.offset((-center[0], -center[1]))
