132 lines
4.5 KiB
C++
132 lines
4.5 KiB
C++
/****************************************************************************
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* VCGLib o o *
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* Visual and Computer Graphics Library o o *
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* _ O _ *
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* Copyright(C) 2004 \/)\/ *
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* Visual Computing Lab /\/| *
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* ISTI - Italian National Research Council | *
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* \ *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program 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 General Public License (http://www.gnu.org/licenses/gpl.txt) *
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* for more details. *
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* *
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****************************************************************************/
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#ifndef EIGEN_VCGLIB
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#define EIGEN_VCGLIB
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#define EIGEN_MATRIXBASE_PLUGIN <vcg/math/eigen_vcgaddons.h>
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#include "../Eigen/LU"
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#include "../Eigen/Geometry"
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#include "../Eigen/Array"
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#include "../Eigen/Core"
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#include "base.h"
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namespace Eigen {
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template<> struct NumTraits<unsigned char>
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{
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typedef unsigned char Real;
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typedef float FloatingPoint;
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enum {
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IsComplex = 0,
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HasFloatingPoint = 0,
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ReadCost = 1,
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AddCost = 1,
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MulCost = 1
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};
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};
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template<> struct NumTraits<short int>
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{
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typedef short int Real;
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typedef float FloatingPoint;
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enum {
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IsComplex = 0,
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HasFloatingPoint = 0,
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ReadCost = 1,
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AddCost = 1,
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MulCost = 1
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};
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};
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}
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#define VCG_EIGEN_INHERIT_ASSIGNMENT_OPERATOR(Derived, Op) \
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template<typename OtherDerived> \
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Derived& operator Op(const Eigen::MatrixBase<OtherDerived>& other) \
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{ \
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Base::operator Op(other.derived()); return *this;\
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} \
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Derived& operator Op(const Derived& other) \
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{ \
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Base::operator Op(other); return *this;\
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}
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#define VCG_EIGEN_INHERIT_SCALAR_ASSIGNMENT_OPERATOR(Derived, Op) \
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template<typename Other> \
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Derived& operator Op(const Other& scalar) \
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{ \
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Base::operator Op(scalar); return *this;\
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}
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#define VCG_EIGEN_INHERIT_ASSIGNMENT_OPERATORS(Derived) \
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VCG_EIGEN_INHERIT_ASSIGNMENT_OPERATOR(Derived, =) \
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VCG_EIGEN_INHERIT_ASSIGNMENT_OPERATOR(Derived, +=) \
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VCG_EIGEN_INHERIT_ASSIGNMENT_OPERATOR(Derived, -=) \
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VCG_EIGEN_INHERIT_SCALAR_ASSIGNMENT_OPERATOR(Derived, *=) \
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VCG_EIGEN_INHERIT_SCALAR_ASSIGNMENT_OPERATOR(Derived, /=)
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namespace vcg {
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template<typename Derived1, typename Derived2>
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typename Eigen::ei_traits<Derived1>::Scalar
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Angle(const Eigen::MatrixBase<Derived1>& p1, const Eigen::MatrixBase<Derived2> & p2)
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{
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EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived1)
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EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived2)
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EIGEN_STATIC_ASSERT_FIXED_SIZE(Derived1)
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EIGEN_STATIC_ASSERT_FIXED_SIZE(Derived2)
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EIGEN_STATIC_ASSERT_SAME_VECTOR_SIZE(Derived1,Derived2)
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typedef typename Eigen::ei_traits<Derived1>::Scalar Scalar;
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Scalar w = p1.norm()*p2.norm();
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if(w==0) return Scalar(-1);
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Scalar t = (p1.dot(p2))/w;
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if(t>1) t = 1;
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else if(t<-1) t = -1;
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return vcg::math::Acos(t);
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}
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template<typename Derived1>
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inline typename Eigen::ei_traits<Derived1>::Scalar Norm( const Eigen::MatrixBase<Derived1>& p)
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{ return p.norm(); }
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template<typename Derived1>
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inline typename Eigen::ei_traits<Derived1>::Scalar SquaredNorm( const Eigen::MatrixBase<Derived1>& p)
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{ return p.norm2(); }
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template<typename Derived1, typename Derived2>
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inline typename Eigen::ei_traits<Derived1>::Scalar
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Distance(const Eigen::MatrixBase<Derived1>& p1, const Eigen::MatrixBase<Derived2> & p2)
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{ return (p1-p2).norm(); }
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template<typename Derived1, typename Derived2>
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inline typename Eigen::ei_traits<Derived1>::Scalar
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SquaredDistance(const Eigen::MatrixBase<Derived1>& p1, const Eigen::MatrixBase<Derived2> & p2)
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{ return (p1-p2).norm2(); }
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}
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#endif
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