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67 lines
2.0 KiB
67 lines
2.0 KiB
/* |
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Copyright © 2010, 2011, 2012 Vladimír Vondruš <mosra@centrum.cz> |
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This file is part of Magnum. |
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Magnum is free software: you can redistribute it and/or modify |
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it under the terms of the GNU Lesser General Public License version 3 |
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only, as published by the Free Software Foundation. |
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Magnum is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU Lesser General Public License version 3 for more details. |
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*/ |
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#include <TestSuite/Tester.h> |
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#include "Math/Algorithms/GramSchmidt.h" |
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namespace Magnum { namespace Math { namespace Algorithms { namespace Test { |
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class GramSchmidtTest: public Corrade::TestSuite::Tester { |
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public: |
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GramSchmidtTest(); |
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void test(); |
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}; |
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typedef Matrix<3, float> Matrix3; |
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typedef Vector<3, float> Vector3; |
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GramSchmidtTest::GramSchmidtTest() { |
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addTests(&GramSchmidtTest::test); |
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} |
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void GramSchmidtTest::test() { |
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Matrix3 m( |
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3.0f, 5.0f, 8.0f, |
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4.0f, 4.0f, 7.0f, |
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7.0f, -1.0f, 8.0f |
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); |
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Matrix3 normalized = Algorithms::gramSchmidt(m); |
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/* Verify the first vector is in direction of first original */ |
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CORRADE_COMPARE(normalized[0], m[0].normalized()); |
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/* Verify the vectors have unit length */ |
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CORRADE_COMPARE(normalized[0].length(), 1.0f); |
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CORRADE_COMPARE(normalized[1].length(), 1.0f); |
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CORRADE_COMPARE(normalized[2].length(), 1.0f); |
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/* Verify the vectors are orthogonal */ |
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CORRADE_COMPARE(Vector3::dot(normalized[0], normalized[1]), 0.0f); |
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CORRADE_COMPARE(Vector3::dot(normalized[0], normalized[2]), 0.0f); |
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CORRADE_COMPARE(Vector3::dot(normalized[1], normalized[2]), 0.0f); |
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/* Just to be sure */ |
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Matrix3 expected( 0.303046f, 0.505076f, 0.808122f, |
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0.928316f, -0.348119f, -0.130544f, |
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-0.215388f, -0.789754f, 0.574367f); |
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CORRADE_COMPARE(normalized, expected); |
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} |
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}}}} |
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CORRADE_TEST_MAIN(Magnum::Math::Algorithms::Test::GramSchmidtTest)
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