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// Copyright (c) 2014
// INRIA Saclay-Ile de France (France)
//
// This file is part of CGAL (www.cgal.org)
//
// $URL: https://github.com/CGAL/cgal/blob/v6.1.1/NewKernel_d/include/CGAL/NewKernel_d/Cartesian_LA_base.h $
// $Id: include/CGAL/NewKernel_d/Cartesian_LA_base.h 08b27d3db14 $
// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
//
// Author(s) : Marc Glisse
#ifndef CGAL_KERNEL_D_CARTESIAN_LA_BASE_H
#define CGAL_KERNEL_D_CARTESIAN_LA_BASE_H
#include <CGAL/basic.h>
#include <CGAL/Origin.h>
#include <type_traits>
#include <CGAL/representation_tags.h>
#include <CGAL/NewKernel_d/functor_tags.h>
#include <CGAL/Uncertain.h>
#include <CGAL/typeset.h>
#include <CGAL/NewKernel_d/Dimension_base.h>
#include <CGAL/NewKernel_d/Cartesian_LA_functors.h>
#include <CGAL/NewKernel_d/Vector/array.h>
#include <CGAL/NewKernel_d/Vector/vector.h>
#include <CGAL/NewKernel_d/Vector/mix.h>
#ifdef CGAL_EIGEN3_ENABLED
#include <CGAL/NewKernel_d/LA_eigen/LA.h>
#else
#error Eigen3 is required
#endif
namespace CGAL {
template < typename FT_, typename Dim_,
#ifndef CGAL_NEWKERNEL_D_USE_EIGEN_VECTOR
# if 1
typename Vec_=Mix_vector<Array_vector<FT_, Dim_>,
Vector_vector<FT_, Dim_>,
FT_, Dim_>,
# elif 0
typename Vec_=Array_vector<FT_, Dim_>,
# else
typename Vec_=Vector_vector<FT_, Dim_>,
# endif
#else
// Dangerous before C++17 because of alignment. Ok on x86_64 without AVX.
typename Vec_=LA_eigen<FT_, Dim_>,
#endif
typename LA_=LA_eigen<FT_,Dim_> >
/* Default LA to Vec or to LA_eigen? */
struct Cartesian_LA_base_d : public Dimension_base<Dim_>
{
typedef Cartesian_LA_base_d<FT_,Dim_> Self;
typedef Cartesian_tag Rep_tag;
typedef Cartesian_tag Kernel_tag;
typedef Dim_ Default_ambient_dimension;
typedef Dim_ Max_ambient_dimension;
typedef Dim_ Dimension;
typedef LA_ LA;
template <class> struct Ambient_dimension { typedef Dim_ type; };
typedef Vec_ LA_vector;
typedef typename LA_vector::Vector Point;
typedef typename LA_vector::Vector Vector;
typedef typename LA_vector::Vector Vector_;
typedef typename LA_vector::Construct_vector Constructor;
typedef typename LA_vector::Vector_const_iterator Point_cartesian_const_iterator;
typedef typename LA_vector::Vector_const_iterator Vector_cartesian_const_iterator;
template<class, class=void> struct Type {};
template<class D> struct Type< Point_tag, D> { typedef Vector_ type; };
template<class D> struct Type<Vector_tag, D> { typedef Vector_ type; };
template<class D> struct Type< FT_tag, D> { typedef FT_ type; };
template<class D> struct Type< RT_tag, D> { typedef FT_ type; };
typedef typeset<Point_tag>
::add<Vector_tag>::type
// FIXME: These have nothing to do here.
::add<Segment_tag>::type
::add<Hyperplane_tag>::type
::add<Sphere_tag>::type
::add<Weighted_point_tag>::type
::add<Iso_box_tag>::type
Object_list;
typedef typeset< Point_cartesian_const_iterator_tag>::type
::add<Vector_cartesian_const_iterator_tag>::type
Iterator_list;
template<class, class=void, class=std::integral_constant<int,0> > struct Functor {
typedef Null_functor type;
};
template<class D> struct Functor<Construct_ttag<Vector_tag>,D> {
typedef CartesianDVectorBase::Construct_LA_vector<Self,Null_vector> type;
};
template<class D> struct Functor<Construct_ttag<Point_tag>,D> {
typedef CartesianDVectorBase::Construct_LA_vector<Self,Origin> type;
};
template<class D> struct Functor<Construct_ttag<Point_cartesian_const_iterator_tag>,D> {
typedef CartesianDVectorBase::Construct_cartesian_const_iterator<Self> type;
};
template<class D> struct Functor<Construct_ttag<Vector_cartesian_const_iterator_tag>,D> {
typedef CartesianDVectorBase::Construct_cartesian_const_iterator<Self> type;
};
template<class D> struct Functor<Sum_of_vectors_tag,D,
std::integral_constant<int,!LA_vector::template Property<Has_vector_plus_minus_tag>::value> > {
typedef CartesianDVectorBase::Sum_of_vectors<Self> type;
};
template<class D> struct Functor<Difference_of_vectors_tag,D,
std::integral_constant<int,!LA_vector::template Property<Has_vector_plus_minus_tag>::value> > {
typedef CartesianDVectorBase::Difference_of_vectors<Self> type;
};
template<class D> struct Functor<Opposite_vector_tag,D,
std::integral_constant<int,!LA_vector::template Property<Has_vector_plus_minus_tag>::value> > {
typedef CartesianDVectorBase::Opposite_vector<Self> type;
};
template<class D> struct Functor<Midpoint_tag,D,
std::integral_constant<int,
!LA_vector::template Property<Has_vector_plus_minus_tag>::value
|| !LA_vector::template Property<Has_vector_scalar_ops_tag>::value> > {
typedef CartesianDVectorBase::Midpoint<Self> type;
};
template<class D> struct Functor<Compute_point_cartesian_coordinate_tag,D> {
typedef CartesianDVectorBase::Compute_cartesian_coordinate<Self> type;
};
template<class D> struct Functor<Compute_vector_cartesian_coordinate_tag,D> {
typedef CartesianDVectorBase::Compute_cartesian_coordinate<Self> type;
};
template<class D> struct Functor<Point_dimension_tag,D> {
typedef CartesianDVectorBase::PV_dimension<Self> type;
};
template<class D> struct Functor<Vector_dimension_tag,D> {
typedef CartesianDVectorBase::PV_dimension<Self> type;
};
template<class D> struct Functor<Orientation_of_vectors_tag,D,
std::integral_constant<int,!LA_vector::template Property<Has_determinant_of_iterator_to_vectors_tag>::value> > {
typedef CartesianDVectorBase::Orientation_of_vectors<Self> type;
};
template<class D> struct Functor<Orientation_of_points_tag,D,
std::integral_constant<int,!LA_vector::template Property<Has_determinant_of_iterator_to_points_tag>::value> > {
typedef CartesianDVectorBase::Orientation_of_points<Self> type;
};
template<class D> struct Functor<Scalar_product_tag,D,
std::integral_constant<int,!LA_vector::template Property<Has_dot_product_tag>::value> > {
typedef CartesianDVectorBase::Scalar_product<Self> type;
};
template<class D> struct Functor<Squared_distance_to_origin_tag,D,
std::integral_constant<int,!LA_vector::template Property<Stores_squared_norm_tag>::value> > {
typedef CartesianDVectorBase::Squared_distance_to_origin_stored<Self> type;
};
// Use integral_constant<int,2> in case of failure, to distinguish from the previous one.
template<class D> struct Functor<Squared_distance_to_origin_tag,D,
std::integral_constant<int,
(LA_vector::template Property<Stores_squared_norm_tag>::value
|| !LA_vector::template Property<Has_dot_product_tag>::value)*2> > {
typedef CartesianDVectorBase::Squared_distance_to_origin_via_dotprod<Self> type;
};
template<class D> struct Functor<Point_to_vector_tag,D> {
typedef CartesianDVectorBase::Identity_functor<Self> type;
};
template<class D> struct Functor<Vector_to_point_tag,D> {
typedef CartesianDVectorBase::Identity_functor<Self> type;
};
constexpr Cartesian_LA_base_d(){}
constexpr Cartesian_LA_base_d(int d):Dimension_base<Dim_>(d){}
};
} //namespace CGAL
#endif // CGAL_KERNEL_D_CARTESIAN_LA_BASE_H
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