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0be89a4796
* add Homogeneous expression for vector and set of vectors (aka matrix) => the next step will be to overload operator* * add homogeneous normalization (again for vector and set of vectors) * add a Replicate expression (with uni-directional replication facilities) => for all of them I'll add examples once we agree on the API * fix gcc-4.4 warnings * rename reverse.cpp array_reverse.cpp
80 lines
2.6 KiB
C++
80 lines
2.6 KiB
C++
// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra. Eigen itself is part of the KDE project.
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//
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// Copyright (C) 2009 Gael Guennebaud <g.gael@free.fr>
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//
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// Eigen is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 3 of the License, or (at your option) any later version.
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//
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// Alternatively, you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of
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// the License, or (at your option) any later version.
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//
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// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License and a copy of the GNU General Public License along with
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// Eigen. If not, see <http://www.gnu.org/licenses/>.
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#include "main.h"
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#include <Eigen/Geometry>
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template<typename Scalar,int Size> void homogeneous(void)
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{
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/* this test covers the following files:
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Homogeneous.h
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*/
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typedef Matrix<Scalar,Size,Size> MatrixType;
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typedef Matrix<Scalar,Size,1> VectorType;
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typedef Matrix<Scalar,Size+1,Size> HMatrixType;
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typedef Matrix<Scalar,Size+1,1> HVectorType;
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Scalar largeEps = test_precision<Scalar>();
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if (ei_is_same_type<Scalar,float>::ret)
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largeEps = 1e-3f;
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Scalar eps = ei_random<Scalar>() * 1e-2;
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VectorType v0 = VectorType::Random(),
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v1 = VectorType::Random(),
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ones = VectorType::Ones();
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HVectorType hv0 = HVectorType::Random(),
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hv1 = HVectorType::Random();
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MatrixType m0 = MatrixType::Random(),
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m1 = MatrixType::Random();
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HMatrixType hm0 = HMatrixType::Random(),
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hm1 = HMatrixType::Random();
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hv0 << v0, 1;
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VERIFY_IS_APPROX(v0.homogeneous(), hv0);
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VERIFY_IS_APPROX(v0, hv0.hnormalized());
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hm0 << m0, ones.transpose();
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VERIFY_IS_APPROX(m0.colwise().homogeneous(), hm0);
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VERIFY_IS_APPROX(m0, hm0.colwise().hnormalized());
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hm0.row(Size-1).setRandom();
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for(int j=0; j<Size; ++j)
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m0.col(j) = hm0.col(j).start(Size) / hm0(Size,j);
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VERIFY_IS_APPROX(m0, hm0.colwise().hnormalized());
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}
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void test_geo_homogeneous()
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{
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for(int i = 0; i < g_repeat; i++) {
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CALL_SUBTEST(( homogeneous<float,1>() ));
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CALL_SUBTEST(( homogeneous<double,3>() ));
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CALL_SUBTEST(( homogeneous<double,8>() ));
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}
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}
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