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Diffstat (limited to 'eigen/test/geo_parametrizedline.cpp')
| -rw-r--r-- | eigen/test/geo_parametrizedline.cpp | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/eigen/test/geo_parametrizedline.cpp b/eigen/test/geo_parametrizedline.cpp new file mode 100644 index 0000000..f0462d4 --- /dev/null +++ b/eigen/test/geo_parametrizedline.cpp @@ -0,0 +1,104 @@ +// This file is part of Eigen, a lightweight C++ template library +// for linear algebra. +// +// Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr> +// Copyright (C) 2008 Benoit Jacob <jacob.benoit.1@gmail.com> +// +// This Source Code Form is subject to the terms of the Mozilla +// Public License v. 2.0. If a copy of the MPL was not distributed +// with this file, You can obtain one at http://mozilla.org/MPL/2.0/. + +#include "main.h" +#include <Eigen/Geometry> +#include <Eigen/LU> +#include <Eigen/QR> + +template<typename LineType> void parametrizedline(const LineType& _line) +{ + /* this test covers the following files: + ParametrizedLine.h + */ + using std::abs; + typedef typename LineType::Index Index; + const Index dim = _line.dim(); + typedef typename LineType::Scalar Scalar; + typedef typename NumTraits<Scalar>::Real RealScalar; + typedef Matrix<Scalar, LineType::AmbientDimAtCompileTime, 1> VectorType; + typedef Hyperplane<Scalar,LineType::AmbientDimAtCompileTime> HyperplaneType; + + VectorType p0 = VectorType::Random(dim); + VectorType p1 = VectorType::Random(dim); + + VectorType d0 = VectorType::Random(dim).normalized(); + + LineType l0(p0, d0); + + Scalar s0 = internal::random<Scalar>(); + Scalar s1 = abs(internal::random<Scalar>()); + + VERIFY_IS_MUCH_SMALLER_THAN( l0.distance(p0), RealScalar(1) ); + VERIFY_IS_MUCH_SMALLER_THAN( l0.distance(p0+s0*d0), RealScalar(1) ); + VERIFY_IS_APPROX( (l0.projection(p1)-p1).norm(), l0.distance(p1) ); + VERIFY_IS_MUCH_SMALLER_THAN( l0.distance(l0.projection(p1)), RealScalar(1) ); + VERIFY_IS_APPROX( Scalar(l0.distance((p0+s0*d0) + d0.unitOrthogonal() * s1)), s1 ); + + // casting + const int Dim = LineType::AmbientDimAtCompileTime; + typedef typename GetDifferentType<Scalar>::type OtherScalar; + ParametrizedLine<OtherScalar,Dim> hp1f = l0.template cast<OtherScalar>(); + VERIFY_IS_APPROX(hp1f.template cast<Scalar>(),l0); + ParametrizedLine<Scalar,Dim> hp1d = l0.template cast<Scalar>(); + VERIFY_IS_APPROX(hp1d.template cast<Scalar>(),l0); + + // intersections + VectorType p2 = VectorType::Random(dim); + VectorType n2 = VectorType::Random(dim).normalized(); + HyperplaneType hp(p2,n2); + Scalar t = l0.intersectionParameter(hp); + VectorType pi = l0.pointAt(t); + VERIFY_IS_MUCH_SMALLER_THAN(hp.signedDistance(pi), RealScalar(1)); + VERIFY_IS_MUCH_SMALLER_THAN(l0.distance(pi), RealScalar(1)); + VERIFY_IS_APPROX(l0.intersectionPoint(hp), pi); +} + +template<typename Scalar> void parametrizedline_alignment() +{ + typedef ParametrizedLine<Scalar,4,AutoAlign> Line4a; + typedef ParametrizedLine<Scalar,4,DontAlign> Line4u; + + EIGEN_ALIGN16 Scalar array1[8]; + EIGEN_ALIGN16 Scalar array2[8]; + EIGEN_ALIGN16 Scalar array3[8+1]; + Scalar* array3u = array3+1; + + Line4a *p1 = ::new(reinterpret_cast<void*>(array1)) Line4a; + Line4u *p2 = ::new(reinterpret_cast<void*>(array2)) Line4u; + Line4u *p3 = ::new(reinterpret_cast<void*>(array3u)) Line4u; + + p1->origin().setRandom(); + p1->direction().setRandom(); + *p2 = *p1; + *p3 = *p1; + + VERIFY_IS_APPROX(p1->origin(), p2->origin()); + VERIFY_IS_APPROX(p1->origin(), p3->origin()); + VERIFY_IS_APPROX(p1->direction(), p2->direction()); + VERIFY_IS_APPROX(p1->direction(), p3->direction()); + + #if defined(EIGEN_VECTORIZE) && EIGEN_ALIGN_STATICALLY + if(internal::packet_traits<Scalar>::Vectorizable) + VERIFY_RAISES_ASSERT((::new(reinterpret_cast<void*>(array3u)) Line4a)); + #endif +} + +void test_geo_parametrizedline() +{ + for(int i = 0; i < g_repeat; i++) { + CALL_SUBTEST_1( parametrizedline(ParametrizedLine<float,2>()) ); + CALL_SUBTEST_2( parametrizedline(ParametrizedLine<float,3>()) ); + CALL_SUBTEST_2( parametrizedline_alignment<float>() ); + CALL_SUBTEST_3( parametrizedline(ParametrizedLine<double,4>()) ); + CALL_SUBTEST_3( parametrizedline_alignment<double>() ); + CALL_SUBTEST_4( parametrizedline(ParametrizedLine<std::complex<double>,5>()) ); + } +} |