def test_anticlockwise_polygon_winding(self):
"""Tests the algorithm returns False (anti-clockwise) for an anti-clockwise polygon."""
poly = np.array([[1, 1], [1, 2], [2, 2], [2, 1]], dtype=np.double)
poly = np.array(poly[::-1])
self.assertFalse(winding2d(poly))
def test_anticlockwise_polygon_winding(self):
"""Tests the algorithm returns False (anti-clockwise) for an anti-clockwise polygon."""
poly = np.array([[1, 1], [1, 2], [2, 2], [2, 1]], dtype=np.double)
poly = np.array(poly[::-1])
self.assertFalse(winding2d(poly))
def test_clockwise_polygon_winding(self):
"""Tests the algorithm returns True (clockwise) for a clockwise polygon."""
poly = np.array([[1, 1], [1, 2], [2, 2], [2, 1]], dtype=np.double)
self.assertTrue(winding2d(poly))
def test_clockwise_polygon_winding(self):
"""Tests the algorithm returns True (clockwise) for a clockwise polygon."""
poly = np.array([[1, 1], [1, 2], [2, 2], [2, 1]], dtype=np.double)
self.assertTrue(winding2d(poly))