diff options
author | Gael Guennebaud <g.gael@free.fr> | 2009-03-05 10:25:22 +0000 |
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committer | Gael Guennebaud <g.gael@free.fr> | 2009-03-05 10:25:22 +0000 |
commit | 0be89a4796543a7e7b8c244d3f1aabcf672cf114 (patch) | |
tree | 71333c6903892087dfd7f7a9343e390f0a4a6866 /test/geo_homogeneous.cpp | |
parent | d710ccd41e0819024ee168dafe7e7e5b8a7f0e45 (diff) |
big addons:
* 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
Diffstat (limited to 'test/geo_homogeneous.cpp')
-rw-r--r-- | test/geo_homogeneous.cpp | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/test/geo_homogeneous.cpp b/test/geo_homogeneous.cpp new file mode 100644 index 000000000..aea6f746e --- /dev/null +++ b/test/geo_homogeneous.cpp @@ -0,0 +1,79 @@ +// This file is part of Eigen, a lightweight C++ template library +// for linear algebra. Eigen itself is part of the KDE project. +// +// Copyright (C) 2009 Gael Guennebaud <g.gael@free.fr> +// +// Eigen is free software; you can redistribute it and/or +// modify it under the terms of the GNU Lesser General Public +// License as published by the Free Software Foundation; either +// version 3 of the License, or (at your option) any later version. +// +// Alternatively, you can redistribute it and/or +// modify it under the terms of the GNU General Public License as +// published by the Free Software Foundation; either version 2 of +// the License, or (at your option) any later version. +// +// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY +// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public +// License and a copy of the GNU General Public License along with +// Eigen. If not, see <http://www.gnu.org/licenses/>. + +#include "main.h" +#include <Eigen/Geometry> + +template<typename Scalar,int Size> void homogeneous(void) +{ + /* this test covers the following files: + Homogeneous.h + */ + + typedef Matrix<Scalar,Size,Size> MatrixType; + typedef Matrix<Scalar,Size,1> VectorType; + + typedef Matrix<Scalar,Size+1,Size> HMatrixType; + typedef Matrix<Scalar,Size+1,1> HVectorType; + + Scalar largeEps = test_precision<Scalar>(); + if (ei_is_same_type<Scalar,float>::ret) + largeEps = 1e-3f; + + Scalar eps = ei_random<Scalar>() * 1e-2; + + VectorType v0 = VectorType::Random(), + v1 = VectorType::Random(), + ones = VectorType::Ones(); + + HVectorType hv0 = HVectorType::Random(), + hv1 = HVectorType::Random(); + + MatrixType m0 = MatrixType::Random(), + m1 = MatrixType::Random(); + + HMatrixType hm0 = HMatrixType::Random(), + hm1 = HMatrixType::Random(); + + hv0 << v0, 1; + VERIFY_IS_APPROX(v0.homogeneous(), hv0); + VERIFY_IS_APPROX(v0, hv0.hnormalized()); + + hm0 << m0, ones.transpose(); + VERIFY_IS_APPROX(m0.colwise().homogeneous(), hm0); + VERIFY_IS_APPROX(m0, hm0.colwise().hnormalized()); + hm0.row(Size-1).setRandom(); + for(int j=0; j<Size; ++j) + m0.col(j) = hm0.col(j).start(Size) / hm0(Size,j); + VERIFY_IS_APPROX(m0, hm0.colwise().hnormalized()); +} + +void test_geo_homogeneous() +{ + for(int i = 0; i < g_repeat; i++) { + CALL_SUBTEST(( homogeneous<float,1>() )); + CALL_SUBTEST(( homogeneous<double,3>() )); + CALL_SUBTEST(( homogeneous<double,8>() )); + } +} |