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Apply to vector unit tests #112

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Apply to vector unit tests #112

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f5d1389
apply_to_vector now operates on lists of vectors without throwing errors
amengede Oct 2, 2021
62d9232
Merge branch 'master' of https://github.com/adamlwgriffiths/Pyrr into…
amengede Oct 5, 2021
f1d1f1f
Added unit tests for apply_to_vector (fixed)
amengede Oct 5, 2021
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12 changes: 12 additions & 0 deletions tests/objects/test_matrix33.py
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Original file line number Diff line number Diff line change
Expand Up @@ -246,6 +246,18 @@ def test_operators_number(self):
self.assertTrue(np.array_equal(m / 2., matrix33.create_identity()[:] / 2.0))
self.assertTrue(np.array_equal(m / fv[0]['f'], matrix33.create_identity()[:] / 2.0))
self.assertTrue(np.array_equal(m / fv[0]['i'], matrix33.create_identity()[:] / 2.0))

def test_apply_to_vector_list(self):

# transform 5 3D vectors by a matrix33
list_of_vectors = np.array([np.array([np.cos(i), np.sin(i), 0]) for i in range(5)])
theoretical_result = np.array([np.array([2 * np.cos(i), 3 * np.sin(i), 0]) for i in range(5)])
matrix3 = np.array([[2, 0, 0, 0], [0, 3, 0, 0], [0, 0, 4, 0]])
self.assertTrue(np.array_equal(theoretical_result, matrix33.apply_to_vector(matrix3, list_of_vectors)))

# transforming 4D vectors by a matrix33 should throw a value error
list_of_vectors = np.array([np.array([np.cos(i), np.sin(i), 0, 1]) for i in range(5)])
self.assertRaises(ValueError, lambda: matrix33.apply_to_vector(matrix3, list_of_vectors))

def test_accessors(self):
m = Matrix33(np.arange(self._size))
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14 changes: 14 additions & 0 deletions tests/objects/test_matrix44.py
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Expand Up @@ -214,6 +214,20 @@ def test_operators_vector4(self):
# divide
self.assertRaises(ValueError, lambda: m / v)

def test_apply_to_vector_list(self):

# transform 5 3D vectors by a matrix44
list_of_vectors = np.array([np.array([np.cos(i), np.sin(i), 0]) for i in range(5)])
theoretical_result = np.array([np.array([2 * np.cos(i), 3 * np.sin(i), 0]) for i in range(5)])
matrix4 = np.array([[2, 0, 0, 0], [0, 3, 0, 0], [0, 0, 4, 0], [0, 0, 0, 1]])
self.assertTrue(np.array_equal(theoretical_result, matrix44.apply_to_vector(matrix4, list_of_vectors)))

# transform 5 4D vectors by a matrix44
list_of_vectors = np.array([np.array([np.cos(i), np.sin(i), 0, 1]) for i in range(5)])
theoretical_result = np.array([np.array([2 * np.cos(i), 3 * np.sin(i), 0, 1]) for i in range(5)])
matrix4 = np.array([[2, 0, 0, 0], [0, 3, 0, 0], [0, 0, 4, 0], [0, 0, 0, 1]])
self.assertTrue(np.array_equal(theoretical_result, matrix44.apply_to_vector(matrix4, list_of_vectors)))

def test_operators_number(self):
m = Matrix44.identity()
fv = np.empty((1,), dtype=[('i', np.int16, 1),('f', np.float32, 1)])
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