591 lines
21 KiB
C
591 lines
21 KiB
C
|
// Copyright (c) 2005,2006 INRIA Sophia-Antipolis (France).
|
||
|
// All rights reserved.
|
||
|
//
|
||
|
// This file is part of CGAL (www.cgal.org); 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.
|
||
|
//
|
||
|
// Licensees holding a valid commercial license may use this file in
|
||
|
// accordance with the commercial license agreement provided with the software.
|
||
|
//
|
||
|
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
|
||
|
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
||
|
//
|
||
|
// $URL$
|
||
|
// $Id$
|
||
|
// SPDX-License-Identifier: LGPL-3.0+
|
||
|
//
|
||
|
//
|
||
|
// Author(s) : Andreas Fabri, Sylvain Pion
|
||
|
|
||
|
#ifndef CGAL_LAZY_KERNEL_H
|
||
|
#define CGAL_LAZY_KERNEL_H
|
||
|
|
||
|
#include <CGAL/basic.h>
|
||
|
//#include <CGAL/Filtered_predicate.h>
|
||
|
#include <CGAL/Static_filtered_predicate.h>
|
||
|
#include <CGAL/Filtered_kernel.h>
|
||
|
#include <CGAL/Cartesian_converter.h>
|
||
|
#include <CGAL/Simple_cartesian.h>
|
||
|
#include <CGAL/Interval_nt.h>
|
||
|
#include <CGAL/Kernel/Type_equality_wrapper.h>
|
||
|
#include <CGAL/Filtered_kernel/Cartesian_coordinate_iterator_2.h>
|
||
|
#include <CGAL/Filtered_kernel/Cartesian_coordinate_iterator_3.h>
|
||
|
#include <CGAL/Lazy.h>
|
||
|
#include <CGAL/internal/Static_filters/tools.h>
|
||
|
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
|
||
|
#include <boost/none.hpp>
|
||
|
#include <boost/mpl/if.hpp>
|
||
|
#include <boost/mpl/or.hpp>
|
||
|
#include <boost/type_traits/remove_reference.hpp>
|
||
|
#include <boost/type_traits/remove_cv.hpp>
|
||
|
|
||
|
#if defined(BOOST_MSVC)
|
||
|
# pragma warning(push)
|
||
|
# pragma warning(disable:4348) // redefinition of default parameter in nested template class
|
||
|
#endif
|
||
|
|
||
|
namespace CGAL {
|
||
|
|
||
|
namespace internal {
|
||
|
|
||
|
// SFINAE way to detect result_type typedefs.
|
||
|
template<typename T>
|
||
|
class Has_result_type_helper
|
||
|
{
|
||
|
typedef char one;
|
||
|
typedef struct { char arr[2]; } two;
|
||
|
|
||
|
template<typename _Up>
|
||
|
struct Wrapper {};
|
||
|
|
||
|
template<typename U>
|
||
|
static one test(Wrapper<typename U::result_type>*);
|
||
|
|
||
|
template<typename U>
|
||
|
static two test(...);
|
||
|
|
||
|
public:
|
||
|
static const bool value = sizeof(test<T>(0)) == 1;
|
||
|
};
|
||
|
|
||
|
template<typename T>
|
||
|
struct Has_result_type
|
||
|
: boost::integral_constant< bool,
|
||
|
Has_result_type_helper< typename boost::remove_cv<T>::type>::value>
|
||
|
{};
|
||
|
|
||
|
template <typename T>
|
||
|
struct Get_result_type {
|
||
|
typedef typename T::result_type type;
|
||
|
};
|
||
|
|
||
|
template <typename T>
|
||
|
struct Lazy_result_type
|
||
|
: boost::mpl::eval_if< Has_result_type<T>,
|
||
|
Get_result_type<T>,
|
||
|
boost::mpl::identity<void> >
|
||
|
{};
|
||
|
|
||
|
class Enum_holder {
|
||
|
protected:
|
||
|
enum { NONE, NT, VARIANT, OBJECT, BBOX };
|
||
|
};
|
||
|
|
||
|
} // internal
|
||
|
|
||
|
// Exact_kernel = exact kernel that will be made lazy
|
||
|
// Kernel = lazy kernel
|
||
|
|
||
|
// the Generic base simplies applies the generic magic functor stupidly.
|
||
|
// then the real base fixes up a few special cases.
|
||
|
template < typename EK_, typename AK_, typename E2A_, typename Kernel_ >
|
||
|
class Lazy_kernel_generic_base : protected internal::Enum_holder
|
||
|
// : public Filtered_kernel_base<EK_>
|
||
|
// TODO : Static_filters_base too ? Check performance
|
||
|
{
|
||
|
public:
|
||
|
|
||
|
typedef AK_ Approximate_kernel;
|
||
|
typedef EK_ Exact_kernel;
|
||
|
typedef E2A_ E2A;
|
||
|
typedef Kernel_ Kernel;
|
||
|
|
||
|
typedef Lazy_kernel_generic_base<EK_, AK_, E2A_, Kernel_> Self;
|
||
|
|
||
|
// synonym identical to Filtered_kernel
|
||
|
typedef AK_ FK;
|
||
|
|
||
|
// Note: Approx_converter and Exact_converter are defined in <CGAL/Lazy.h>
|
||
|
typedef Approx_converter<Kernel, Approximate_kernel> C2F;
|
||
|
typedef Exact_converter<Kernel, Exact_kernel> C2E;
|
||
|
|
||
|
template < typename Kernel2 >
|
||
|
struct Base { typedef Lazy_kernel_generic_base<Exact_kernel, Approximate_kernel, E2A, Kernel2> Type; };
|
||
|
|
||
|
template < typename T >
|
||
|
struct Ambient_dimension {
|
||
|
typedef typename T::Ambient_dimension type;
|
||
|
};
|
||
|
|
||
|
template < typename T >
|
||
|
struct Feature_dimension {
|
||
|
typedef typename T::Feature_dimension type;
|
||
|
};
|
||
|
|
||
|
typedef typename Exact_kernel::Kernel_tag Kernel_tag;
|
||
|
typedef typename Exact_kernel::Rep_tag Rep_tag;
|
||
|
|
||
|
enum { Has_filtered_predicates = true };
|
||
|
enum { Has_static_filters = false };
|
||
|
typedef Boolean_tag<Has_filtered_predicates> Has_filtered_predicates_tag;
|
||
|
|
||
|
// Types
|
||
|
typedef CGAL::Lazy_exact_nt<typename Exact_kernel::FT> FT;
|
||
|
typedef FT RT;
|
||
|
|
||
|
typedef typename Same_uncertainty_nt<bool, FT>::type
|
||
|
Boolean;
|
||
|
typedef typename Same_uncertainty_nt<CGAL::Sign, FT>::type
|
||
|
Sign;
|
||
|
typedef typename Same_uncertainty_nt<CGAL::Comparison_result, FT>::type
|
||
|
Comparison_result;
|
||
|
typedef typename Same_uncertainty_nt<CGAL::Orientation, FT>::type
|
||
|
Orientation;
|
||
|
typedef typename Same_uncertainty_nt<CGAL::Oriented_side, FT>::type
|
||
|
Oriented_side;
|
||
|
typedef typename Same_uncertainty_nt<CGAL::Bounded_side, FT>::type
|
||
|
Bounded_side;
|
||
|
typedef typename Same_uncertainty_nt<CGAL::Angle, FT>::type
|
||
|
Angle;
|
||
|
|
||
|
typedef CGAL::Object Object_2;
|
||
|
typedef CGAL::Object Object_3;
|
||
|
|
||
|
#define CGAL_Kernel_obj(X) \
|
||
|
typedef Lazy<typename Approximate_kernel::X, typename Exact_kernel::X, typename Exact_kernel::FT, E2A> X;
|
||
|
|
||
|
CGAL_Kernel_obj(Data_accessor_2)
|
||
|
CGAL_Kernel_obj(Conic_2)
|
||
|
|
||
|
typedef Cartesian_coordinate_iterator_2<Kernel> Cartesian_const_iterator_2;
|
||
|
typedef Cartesian_coordinate_iterator_3<Kernel> Cartesian_const_iterator_3;
|
||
|
|
||
|
// Aff_transformation_2/3 operations are not functorized, so treat it as
|
||
|
// an exterior object for now.
|
||
|
// CGAL_Kernel_obj(Aff_transformation_2)
|
||
|
// CGAL_Kernel_obj(Aff_transformation_3)
|
||
|
typedef CGAL::Aff_transformationC2<Kernel> Aff_transformation_2;
|
||
|
typedef CGAL::Aff_transformationC3<Kernel> Aff_transformation_3;
|
||
|
|
||
|
private:
|
||
|
// We use a combination of partial and logic to extract the right
|
||
|
// construction. Constructions without a result_type always have to
|
||
|
// be done through specializations.
|
||
|
//
|
||
|
// The case distinction goes as follows:
|
||
|
// result_type == FT => NT
|
||
|
// result_type == Object => Object
|
||
|
// result_type == Bbox_2 || result_type == Bbox_3 => BBOX
|
||
|
// default => NONE
|
||
|
// no result_type => NONE
|
||
|
//
|
||
|
//
|
||
|
// we require a Dummy because we cannot have complete
|
||
|
// specializations inside a non-namespace scope.
|
||
|
// The default implementation does some default handling,
|
||
|
// the special cases are filtered by partial specializations.
|
||
|
template <typename Construction, typename Dummy = boost::none_t>
|
||
|
struct Lazy_wrapper_traits :
|
||
|
boost::mpl::eval_if< internal::Has_result_type<Construction>,
|
||
|
boost::mpl::eval_if< boost::is_same< typename boost::remove_cv<
|
||
|
typename boost::remove_reference<
|
||
|
typename internal::Lazy_result_type<Construction>::type
|
||
|
>::type >::type,
|
||
|
typename Approximate_kernel::FT>,
|
||
|
boost::mpl::int_<NT>,
|
||
|
boost::mpl::eval_if< boost::is_same< typename internal::Lazy_result_type<Construction>::type,
|
||
|
CGAL::Object >,
|
||
|
boost::mpl::int_<OBJECT>,
|
||
|
boost::mpl::eval_if< boost::mpl::or_<
|
||
|
boost::is_same< typename internal::Lazy_result_type<Construction>::type, CGAL::Bbox_2 >,
|
||
|
boost::is_same< typename internal::Lazy_result_type<Construction>::type, CGAL::Bbox_3 > >,
|
||
|
boost::mpl::int_<BBOX>,
|
||
|
boost::mpl::int_<NONE> > > >,
|
||
|
boost::mpl::int_<NONE> >::type {};
|
||
|
|
||
|
#define CGAL_WRAPPER_TRAIT(NAME, WRAPPER) \
|
||
|
template<typename Dummy> \
|
||
|
struct Lazy_wrapper_traits<typename Approximate_kernel::NAME, Dummy> \
|
||
|
: boost::mpl::int_<WRAPPER> {};
|
||
|
|
||
|
#if CGAL_INTERSECTION_VERSION > 1
|
||
|
CGAL_WRAPPER_TRAIT(Intersect_2, VARIANT)
|
||
|
CGAL_WRAPPER_TRAIT(Intersect_3, VARIANT)
|
||
|
#else
|
||
|
CGAL_WRAPPER_TRAIT(Intersect_2, OBJECT)
|
||
|
CGAL_WRAPPER_TRAIT(Intersect_3, OBJECT)
|
||
|
#endif
|
||
|
CGAL_WRAPPER_TRAIT(Compute_squared_radius_2, NT)
|
||
|
CGAL_WRAPPER_TRAIT(Compute_x_3, NT)
|
||
|
CGAL_WRAPPER_TRAIT(Compute_y_3, NT)
|
||
|
CGAL_WRAPPER_TRAIT(Compute_z_3, NT)
|
||
|
|
||
|
#undef CGAL_WRAPPER_TRAIT
|
||
|
|
||
|
template <typename Construction, int Type = Lazy_wrapper_traits<Construction>::value>
|
||
|
struct Select_wrapper_impl;
|
||
|
|
||
|
template <typename Construction>
|
||
|
struct Select_wrapper_impl<Construction, NONE> {
|
||
|
template<typename Kernel, typename AKC, typename EKC>
|
||
|
struct apply { typedef Lazy_construction<Kernel, AKC, EKC> type; };
|
||
|
};
|
||
|
|
||
|
template <typename Construction>
|
||
|
struct Select_wrapper_impl<Construction, NT> {
|
||
|
template<typename Kernel, typename AKC, typename EKC>
|
||
|
struct apply { typedef Lazy_construction_nt<Kernel, AKC, EKC> type; };
|
||
|
};
|
||
|
|
||
|
template <typename Construction>
|
||
|
struct Select_wrapper_impl<Construction, VARIANT> {
|
||
|
template<typename Kernel, typename AKC, typename EKC>
|
||
|
struct apply { typedef Lazy_construction_variant<Kernel, AKC, EKC> type; };
|
||
|
};
|
||
|
|
||
|
template <typename Construction>
|
||
|
struct Select_wrapper_impl<Construction, OBJECT> {
|
||
|
template<typename Kernel, typename AKC, typename EKC>
|
||
|
struct apply { typedef Lazy_construction_object<Kernel, AKC, EKC> type; };
|
||
|
};
|
||
|
|
||
|
template <typename Construction>
|
||
|
struct Select_wrapper_impl<Construction, BBOX> {
|
||
|
template<typename Kernel, typename AKC, typename EKC>
|
||
|
struct apply { typedef Lazy_construction_bbox<Kernel, AKC, EKC> type; };
|
||
|
};
|
||
|
|
||
|
template <typename Construction>
|
||
|
struct Select_wrapper : Select_wrapper_impl<Construction> {};
|
||
|
|
||
|
public:
|
||
|
|
||
|
|
||
|
#ifdef CGAL_NO_STATIC_FILTERS_FOR_LAZY_KERNEL
|
||
|
#define CGAL_Kernel_pred(P, Pf) \
|
||
|
typedef Filtered_predicate<typename Exact_kernel::P, typename Approximate_kernel::P, C2E, C2F> P; \
|
||
|
P Pf() const { return P(); }
|
||
|
#else
|
||
|
#define CGAL_Kernel_pred(P, Pf) \
|
||
|
typedef Static_filtered_predicate<Approximate_kernel, Filtered_predicate<typename Exact_kernel::P, typename Approximate_kernel::P, C2E, C2F>, Exact_predicates_inexact_constructions_kernel::P> P; \
|
||
|
P Pf() const { return P(); }
|
||
|
#endif
|
||
|
|
||
|
#define CGAL_Kernel_cons(C, Cf) \
|
||
|
typedef typename Select_wrapper<typename Approximate_kernel::C>::template apply<Kernel, typename Approximate_kernel::C, typename Exact_kernel::C>::type C; \
|
||
|
C Cf() const { return C(); }
|
||
|
|
||
|
#include <CGAL/Kernel/interface_macros.h>
|
||
|
};
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
template < typename EK_, typename AK_, typename E2A_, typename Kernel_ >
|
||
|
class Lazy_kernel_base
|
||
|
: public Lazy_kernel_generic_base<EK_, AK_, E2A_, Kernel_>
|
||
|
{
|
||
|
public:
|
||
|
typedef Kernel_ Kernel;
|
||
|
typedef AK_ Approximate_kernel;
|
||
|
typedef EK_ Exact_kernel;
|
||
|
typedef E2A_ E2A;
|
||
|
|
||
|
typedef Lazy_kernel_generic_base<EK_, AK_, E2A_, Kernel_> BaseClass;
|
||
|
template < typename Kernel2 >
|
||
|
struct Base { typedef Lazy_kernel_base<Exact_kernel, Approximate_kernel, E2A, Kernel2> Type; };
|
||
|
|
||
|
typedef CommonKernelFunctors::Assign_2<Kernel> Assign_2;
|
||
|
typedef CommonKernelFunctors::Assign_3<Kernel> Assign_3;
|
||
|
typedef Lazy_construction_bbox<Kernel, typename Approximate_kernel::Construct_bbox_2, typename Exact_kernel::Construct_bbox_2> Construct_bbox_2;
|
||
|
typedef Lazy_construction_bbox<Kernel, typename Approximate_kernel::Construct_bbox_3, typename Exact_kernel::Construct_bbox_3> Construct_bbox_3;
|
||
|
typedef Lazy_cartesian_const_iterator_2<Kernel, typename Approximate_kernel::Construct_cartesian_const_iterator_2, typename Exact_kernel::Construct_cartesian_const_iterator_2> Construct_cartesian_const_iterator_2;
|
||
|
typedef Lazy_cartesian_const_iterator_3<Kernel, typename Approximate_kernel::Construct_cartesian_const_iterator_3, typename Exact_kernel::Construct_cartesian_const_iterator_3> Construct_cartesian_const_iterator_3;
|
||
|
|
||
|
typedef CGAL::CartesianKernelFunctors::Compute_approximate_squared_length_3<Kernel> Compute_approximate_squared_length_3;
|
||
|
typedef CGAL::CartesianKernelFunctors::Compute_approximate_area_3<Kernel> Compute_approximate_area_3;
|
||
|
|
||
|
// typedef void Compute_z_3; // to detect where .z() is called
|
||
|
// typedef void Construct_point_3; // to detect where the ctor is called
|
||
|
|
||
|
struct Compute_weight_2 : public BaseClass::Compute_weight_2
|
||
|
{
|
||
|
typedef typename Kernel_::FT FT;
|
||
|
typedef typename Kernel_::Point_2 Point_2;
|
||
|
typedef typename Kernel_::Weighted_point_2 Weighted_point_2;
|
||
|
|
||
|
FT operator()(const Weighted_point_2& p) const
|
||
|
{
|
||
|
|
||
|
typedef Lazy_rep_3<typename Approximate_kernel::Weighted_point_2,
|
||
|
typename Exact_kernel::Weighted_point_2,
|
||
|
typename Approximate_kernel::Construct_weighted_point_2,
|
||
|
typename Exact_kernel::Construct_weighted_point_2,
|
||
|
E2A_,
|
||
|
Return_base_tag,
|
||
|
Point_2,
|
||
|
FT
|
||
|
> LR;
|
||
|
|
||
|
|
||
|
LR * lr = dynamic_cast<LR*>(p.ptr());
|
||
|
if(lr && (! lr->et)){
|
||
|
return lr->l2;
|
||
|
}
|
||
|
return BaseClass().compute_weight_2_object()(p);
|
||
|
}
|
||
|
|
||
|
};
|
||
|
|
||
|
|
||
|
struct Compute_weight_3 : public BaseClass::Compute_weight_3
|
||
|
{
|
||
|
typedef typename Kernel_::FT FT;
|
||
|
typedef typename Kernel_::Point_3 Point_3;
|
||
|
typedef typename Kernel_::Weighted_point_3 Weighted_point_3;
|
||
|
|
||
|
FT operator()(const Weighted_point_3& p) const
|
||
|
{
|
||
|
|
||
|
typedef Lazy_rep_3<typename Approximate_kernel::Weighted_point_3,
|
||
|
typename Exact_kernel::Weighted_point_3,
|
||
|
typename Approximate_kernel::Construct_weighted_point_3,
|
||
|
typename Exact_kernel::Construct_weighted_point_3,
|
||
|
E2A_,
|
||
|
Return_base_tag,
|
||
|
Point_3,
|
||
|
FT
|
||
|
> LR;
|
||
|
|
||
|
|
||
|
LR * lr = dynamic_cast<LR*>(p.ptr());
|
||
|
if(lr && (! lr->et)){
|
||
|
return lr->l2;
|
||
|
}
|
||
|
return BaseClass().compute_weight_3_object()(p);
|
||
|
}
|
||
|
|
||
|
};
|
||
|
|
||
|
|
||
|
struct Construct_point_2 : public BaseClass::Construct_point_2
|
||
|
{
|
||
|
typedef typename Kernel_::FT FT;
|
||
|
typedef typename Kernel_::Point_2 Point_2;
|
||
|
typedef typename Kernel_::Weighted_point_2 Weighted_point_2;
|
||
|
|
||
|
#ifndef CGAL_CFG_MATCHING_BUG_6
|
||
|
using BaseClass::Construct_point_2::operator();
|
||
|
#else // CGAL_CFG_MATCHING_BUG_6
|
||
|
|
||
|
|
||
|
template <class ... T>
|
||
|
Point_2 operator()(const T& ...t) const
|
||
|
{
|
||
|
return BaseClass().construct_point_2_object()(t...);
|
||
|
}
|
||
|
|
||
|
#endif // CGAL_CFG_MATCHING_BUG_6
|
||
|
|
||
|
const Point_2& operator()(const Point_2& p) const
|
||
|
{
|
||
|
return p;
|
||
|
}
|
||
|
|
||
|
|
||
|
Point_2 operator()(const Weighted_point_2& p) const
|
||
|
{
|
||
|
typedef Lazy_rep_3<typename Approximate_kernel::Weighted_point_2,
|
||
|
typename Exact_kernel::Weighted_point_2,
|
||
|
typename Approximate_kernel::Construct_weighted_point_2,
|
||
|
typename Exact_kernel::Construct_weighted_point_2,
|
||
|
E2A_,
|
||
|
Return_base_tag,
|
||
|
Point_2,
|
||
|
FT
|
||
|
> LR;
|
||
|
|
||
|
typedef Lazy_rep_3<typename Approximate_kernel::Weighted_point_2,
|
||
|
typename Exact_kernel::Weighted_point_2,
|
||
|
typename Approximate_kernel::Construct_weighted_point_2,
|
||
|
typename Exact_kernel::Construct_weighted_point_2,
|
||
|
E2A_,
|
||
|
Return_base_tag,
|
||
|
Point_2,
|
||
|
int
|
||
|
> LRint;
|
||
|
|
||
|
LR * lr = dynamic_cast<LR*>(p.ptr());
|
||
|
if(lr && (! lr->et)){
|
||
|
return lr->l1;
|
||
|
} else {
|
||
|
LRint* lrint = dynamic_cast<LRint*>(p.ptr());
|
||
|
if(lrint && (! lrint->et)){
|
||
|
return lrint->l1;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return BaseClass().construct_point_2_object()(p);
|
||
|
}
|
||
|
|
||
|
};
|
||
|
|
||
|
|
||
|
|
||
|
struct Construct_point_3 : public BaseClass::Construct_point_3
|
||
|
{
|
||
|
typedef typename Kernel_::FT FT;
|
||
|
typedef typename Kernel_::Point_3 Point_3;
|
||
|
typedef typename Kernel_::Weighted_point_3 Weighted_point_3;
|
||
|
|
||
|
#ifndef CGAL_CFG_MATCHING_BUG_6
|
||
|
using BaseClass::Construct_point_3::operator();
|
||
|
#else // CGAL_CFG_MATCHING_BUG_6
|
||
|
|
||
|
template <class ... T>
|
||
|
Point_3 operator()(const T& ...t) const
|
||
|
{
|
||
|
return BaseClass().construct_point_3_object()(t...);
|
||
|
}
|
||
|
|
||
|
#endif // CGAL_CFG_MATCHING_BUG_6
|
||
|
|
||
|
const Point_3& operator()(const Point_3& p) const
|
||
|
{
|
||
|
return p;
|
||
|
}
|
||
|
|
||
|
Point_3 operator()(const Weighted_point_3& p) const
|
||
|
{
|
||
|
typedef Lazy_rep_3<typename Approximate_kernel::Weighted_point_3,
|
||
|
typename Exact_kernel::Weighted_point_3,
|
||
|
typename Approximate_kernel::Construct_weighted_point_3,
|
||
|
typename Exact_kernel::Construct_weighted_point_3,
|
||
|
E2A_,
|
||
|
Return_base_tag,
|
||
|
Point_3,
|
||
|
FT
|
||
|
> LR;
|
||
|
|
||
|
typedef Lazy_rep_3<typename Approximate_kernel::Weighted_point_3,
|
||
|
typename Exact_kernel::Weighted_point_3,
|
||
|
typename Approximate_kernel::Construct_weighted_point_3,
|
||
|
typename Exact_kernel::Construct_weighted_point_3,
|
||
|
E2A_,
|
||
|
Return_base_tag,
|
||
|
Point_3,
|
||
|
int
|
||
|
> LRint;
|
||
|
|
||
|
|
||
|
LR * lr = dynamic_cast<LR*>(p.ptr());
|
||
|
if(lr && (! lr->et)){
|
||
|
return lr->l1;
|
||
|
}else{
|
||
|
LRint* lrint = dynamic_cast<LRint*>(p.ptr());
|
||
|
if(lrint && (! lrint->et)){
|
||
|
return lrint->l1;
|
||
|
}
|
||
|
}
|
||
|
return BaseClass().construct_point_3_object()(p);
|
||
|
}
|
||
|
|
||
|
};
|
||
|
|
||
|
|
||
|
Construct_point_2 construct_point_2_object() const
|
||
|
{
|
||
|
return Construct_point_2();
|
||
|
}
|
||
|
|
||
|
Construct_point_3 construct_point_3_object() const
|
||
|
{
|
||
|
return Construct_point_3();
|
||
|
}
|
||
|
|
||
|
|
||
|
Compute_weight_2 compute_weight_2_object() const
|
||
|
{
|
||
|
return Compute_weight_2();
|
||
|
}
|
||
|
|
||
|
Compute_weight_3 compute_weight_3_object() const
|
||
|
{
|
||
|
return Compute_weight_3();
|
||
|
}
|
||
|
|
||
|
|
||
|
Assign_2
|
||
|
assign_2_object() const
|
||
|
{ return Assign_2(); }
|
||
|
|
||
|
Assign_3
|
||
|
assign_3_object() const
|
||
|
{ return Assign_3(); }
|
||
|
|
||
|
Construct_bbox_2
|
||
|
construct_bbox_2_object() const
|
||
|
{ return Construct_bbox_2(); }
|
||
|
|
||
|
Construct_bbox_3
|
||
|
construct_bbox_3_object() const
|
||
|
{ return Construct_bbox_3(); }
|
||
|
|
||
|
Construct_cartesian_const_iterator_2
|
||
|
construct_cartesian_const_iterator_2_object() const
|
||
|
{ return Construct_cartesian_const_iterator_2(); }
|
||
|
|
||
|
Construct_cartesian_const_iterator_3
|
||
|
construct_cartesian_const_iterator_3_object() const
|
||
|
{ return Construct_cartesian_const_iterator_3(); }
|
||
|
|
||
|
Compute_approximate_squared_length_3
|
||
|
compute_approximate_squared_length_3_object() const
|
||
|
{ return Compute_approximate_squared_length_3(); }
|
||
|
|
||
|
Compute_approximate_area_3
|
||
|
compute_approximate_area_3_object() const
|
||
|
{ return Compute_approximate_area_3(); }
|
||
|
}; // end class Lazy_kernel_base<EK_, AK_, E2A_, Kernel_2>
|
||
|
|
||
|
|
||
|
template <class Exact_kernel, class Approximate_kernel, class E2A>
|
||
|
struct Lazy_kernel_without_type_equality
|
||
|
: public Lazy_kernel_base< Exact_kernel, Approximate_kernel, E2A, Lazy_kernel_without_type_equality<Exact_kernel,Approximate_kernel, E2A> >
|
||
|
{};
|
||
|
|
||
|
template <class Exact_kernel,
|
||
|
class Approximate_kernel = Simple_cartesian<Interval_nt_advanced>,
|
||
|
class E2A = Cartesian_converter<Exact_kernel, Approximate_kernel> >
|
||
|
struct Lazy_kernel
|
||
|
: public Type_equality_wrapper<
|
||
|
Lazy_kernel_base< Exact_kernel, Approximate_kernel, E2A, Lazy_kernel<Exact_kernel, Approximate_kernel, E2A> >,
|
||
|
Lazy_kernel<Exact_kernel, Approximate_kernel, E2A> >
|
||
|
{
|
||
|
// WARNING: If you change the definition of Lazy_kernel, then you need to
|
||
|
// change also the definition of Epeck in
|
||
|
// <CGAL/Exact_predicate_exact_constructions_kernel.h>.
|
||
|
};
|
||
|
|
||
|
} //namespace CGAL
|
||
|
|
||
|
|
||
|
#if defined(BOOST_MSVC)
|
||
|
# pragma warning(pop)
|
||
|
#endif
|
||
|
|
||
|
#endif // CGAL_LAZY_KERNEL_H
|