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78 lines
3.1 KiB
C++
78 lines
3.1 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) 2008 Gael Guennebaud <g.gael@free.fr>
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// Copyright (C) 2008 Benoit Jacob <jacob.benoit.1@gmail.com>
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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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#include <Eigen/LU>
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#include <Eigen/QR>
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template<typename LineType> void parametrizedline(const LineType& _line)
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{
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/* this test covers the following files:
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ParametrizedLine.h
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*/
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const int dim = _line.dim();
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typedef typename LineType::Scalar Scalar;
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typedef typename NumTraits<Scalar>::Real RealScalar;
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typedef Matrix<Scalar, LineType::AmbientDimAtCompileTime, 1> VectorType;
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typedef Matrix<Scalar, LineType::AmbientDimAtCompileTime,
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LineType::AmbientDimAtCompileTime> MatrixType;
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VectorType p0 = VectorType::Random(dim);
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VectorType p1 = VectorType::Random(dim);
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VectorType d0 = VectorType::Random(dim).normalized();
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LineType l0(p0, d0);
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Scalar s0 = ei_random<Scalar>();
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Scalar s1 = ei_abs(ei_random<Scalar>());
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VERIFY_IS_MUCH_SMALLER_THAN( l0.distance(p0), RealScalar(1) );
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VERIFY_IS_MUCH_SMALLER_THAN( l0.distance(p0+s0*d0), RealScalar(1) );
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VERIFY_IS_APPROX( (l0.projection(p1)-p1).norm(), l0.distance(p1) );
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VERIFY_IS_MUCH_SMALLER_THAN( l0.distance(l0.projection(p1)), RealScalar(1) );
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VERIFY_IS_APPROX( Scalar(l0.distance((p0+s0*d0) + d0.unitOrthogonal() * s1)), s1 );
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// casting
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const int Dim = LineType::AmbientDimAtCompileTime;
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typedef typename GetDifferentType<Scalar>::type OtherScalar;
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ParametrizedLine<OtherScalar,Dim> hp1f = l0.template cast<OtherScalar>();
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VERIFY_IS_APPROX(hp1f.template cast<Scalar>(),l0);
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ParametrizedLine<Scalar,Dim> hp1d = l0.template cast<Scalar>();
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VERIFY_IS_APPROX(hp1d.template cast<Scalar>(),l0);
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}
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void test_parametrizedline()
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{
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for(int i = 0; i < g_repeat; i++) {
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CALL_SUBTEST( parametrizedline(ParametrizedLine<float,2>()) );
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CALL_SUBTEST( parametrizedline(ParametrizedLine<float,3>()) );
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CALL_SUBTEST( parametrizedline(ParametrizedLine<double,4>()) );
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CALL_SUBTEST( parametrizedline(ParametrizedLine<std::complex<double>,5>()) );
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}
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}
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