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cgal/Old_Packages/Kernel_basic/include/CGAL/Kernel/function_objects.h

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// ======================================================================
//
// Copyright (c) 1999 The CGAL Consortium
//
// This software and related documentation is part of an INTERNAL release
// of the Computational Geometry Algorithms Library (CGAL). It is not
// intended for general use.
//
// ----------------------------------------------------------------------
// release :
// release_date :
//
// file : include/CGAL/Kernel/function_objects.h
// revision : $Revision$
// revision_date : $Date$
// author(s) : Stefan Schirra <Stefan.Schirra@mpi-sb.mpg.de>
//
// coordinator : MPI, Saarbruecken
// ======================================================================
#ifndef CGAL_KERNEL_FUNCTION_OBJECTS_H
#define CGAL_KERNEL_FUNCTION_OBJECTS_H
#include <CGAL/functional_base.h>
CGAL_BEGIN_NAMESPACE
namespace CGALi {
template <class ToBeConstructed>
class Construct
{
public:
typedef ToBeConstructed result_type;
ToBeConstructed
operator()() const
{ return ToBeConstructed(); }
template <class A1>
ToBeConstructed
operator()( const A1& a1) const
{ return ToBeConstructed(a1); }
template <class A1, class A2>
ToBeConstructed
operator()( const A1& a1, const A2& a2) const
{ return ToBeConstructed(a1,a2); }
template <class A1, class A2, class A3>
ToBeConstructed
operator()( const A1& a1, const A2& a2, const A3& a3) const
{ return ToBeConstructed(a1,a2,a3); }
template <class A1, class A2, class A3, class A4>
ToBeConstructed
operator()( const A1& a1, const A2& a2, const A3& a3, const A4& a4) const
{ return ToBeConstructed(a1,a2,a3,a4); }
template <class A1, class A2, class A3, class A4, class A5>
ToBeConstructed
operator()( const A1& a1, const A2& a2, const A3& a3, const A4& a4,
const A5& a5) const
{ return ToBeConstructed(a1,a2,a3,a4,a5); }
template <class A>
ToBeConstructed
operator()( const A& a1, const A& a2, const A& a3,
const A& a4, const A& a5, const A& a6 ) const
{ return ToBeConstructed(a1,a2,a3,a4,a5,a6); }
template <class A>
ToBeConstructed
operator()( const A& a1, const A& a2, const A& a3,
const A& a4, const A& a5, const A& a6,
const A& a7 ) const
{ return ToBeConstructed(a1,a2,a3,a4,a5,a6,a7); }
template <class A>
ToBeConstructed
operator()( const A& a1, const A& a2, const A& a3,
const A& a4, const A& a5, const A& a6,
const A& a7, const A& a8, const A& a9) const
{ return ToBeConstructed(a1,a2,a3,a4,a5,a6,a7,a8,a9); }
template <class A>
ToBeConstructed
operator()( const A& a1, const A& a2, const A& a3,
const A& a4, const A& a5, const A& a6,
const A& a7, const A& a8, const A& a9,
const A& a10) const
{ return ToBeConstructed(a1,a2,a3,a4,a5,a6,a7,a8,a9,a10); }
template <class A>
ToBeConstructed
operator()( const A& a1, const A& a2, const A& a3,
const A& a4, const A& a5, const A& a6,
const A& a7, const A& a8, const A& a9,
const A& a10,const A& a11,const A& a12) const
{ return ToBeConstructed(a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12); }
template <class A>
ToBeConstructed
operator()( const A& a1, const A& a2, const A& a3,
const A& a4, const A& a5, const A& a6,
const A& a7, const A& a8, const A& a9,
const A& a10,const A& a11,const A& a12,
const A& a13) const
{ return ToBeConstructed(a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12,a13); }
};
template <class ToBeConstructed>
class Call_make_object_to_get
{
public:
typedef ToBeConstructed result_type;
typedef Arity_tag< 1 > Arity;
template <class Cls>
ToBeConstructed
operator()( const Cls& c) const
{ return make_object(c); }
};
template <class Vector>
class Construct_scaled_vector
{
public:
typedef Vector result_type;
typedef Arity_tag< 2 > Arity;
template <class NT>
Vector
operator()( const Vector& v, const NT& scale) const
{ return v * scale; }
};
template <class Point>
class Construct_translated_point
{
public:
typedef Point result_type;
typedef Arity_tag< 2 > Arity;
template <class Vector>
Point
operator()( const Point& p, const Vector& v) const
{ return p + v; }
};
template <class Point_2>
class Construct_projected_xy_point
{
public:
typedef Point_2 result_type;
typedef Arity_tag< 2 > Arity;
template <class Plane_3, class Point_3>
Point_2
operator()( const Plane_3& h, const Point_3& p) const
{ return h.to_2d(p); }
};
template <class ReturnType>
class Call_point_to_get
{
public:
typedef ReturnType result_type;
template <class Cls>
ReturnType
operator()( const Cls& c) const
{ return c.point(); }
template <class Cls>
ReturnType
operator()( const Cls& c, int i) const
{ return c.point(i); }
};
template <class ReturnType>
class Call_second_point_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 1 > Arity;
template <class Cls>
ReturnType
operator()( const Cls& c) const
{ return c.second_point(); }
};
template <class ReturnType>
class Call_perpendicular_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 2 > Arity;
// This is only called for Vector_2, Direction_2, and Line_2
// and in all cases only the two parameter variant is documented
template <class Cls>
ReturnType
operator()( const Cls& c) const
{ return c.perpendicular(); }
template <class Cls, class A1>
ReturnType
operator()( const Cls& c, const A1& a1) const
{ return c.perpendicular(a1); }
};
template <class ReturnType>
class Call_perpendicular_plane_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 2 > Arity;
template <class Cls, class A1>
ReturnType
operator()( const Cls& c, const A1& a1) const
{ return c.perpendicular_plane(a1); }
};
template <class ReturnType>
class Call_perpendicular_line_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 2 > Arity;
template <class Cls, class A1>
ReturnType
operator()( const Cls& c, const A1& a1) const
{ return c.perpendicular_line(a1); }
};
template <class Vector>
class Call_orthogonal_vector_to_get
{
public:
typedef Vector result_type;
typedef Arity_tag< 1 > Arity;
template <class Cls>
Vector
operator()( const Cls& c ) const
{ return c.orthogonal_vector(); }
};
template <class Point>
class Call_projection_to_get
{
public:
typedef Point result_type;
typedef Arity_tag< 2 > Arity;
template <class Cls>
Point
operator()( const Cls& c, const Point& p ) const
{ return c.projection(p); }
};
template <class ReturnType>
class Call_squared_area_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 1 > Arity;
template <class Cls>
ReturnType
operator()( const Cls& c ) const
{ return c.squared_area(); }
};
template <class ReturnType>
class Call_area_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 1 > Arity;
template <class Cls>
ReturnType
operator()( const Cls& c ) const
{ return c.area(); }
};
template <class ReturnType>
class Call_volume_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 1 > Arity;
template <class Cls>
ReturnType
operator()( const Cls& c ) const
{ return c.volume(); }
};
template <class Point>
class p_Midpoint
{
public:
typedef Point result_type;
typedef Arity_tag< 2 > Arity;
Point
operator()(const Point& p, const Point& q) const
{ return midpoint(p,q); }
};
template <class Point>
class p_Center
{
public:
typedef Point result_type;
typedef Arity_tag< 1 > Arity;
template <class C>
Point
operator()(const C&c) const
{ return c.center(); }
};
template <class Point>
class p_Circumcenter
{
public:
typedef Point result_type;
Point
operator()(const Point& p, const Point& q, const Point& r) const
{ return circumcenter(p,q,r); }
Point
operator()(const Point& p, const Point& q,
const Point& r, const Point& s) const
{ return circumcenter(p,q,r,s); }
};
template <class Point>
class p_Centroid
{
public:
typedef Point result_type;
Point
operator()(const Point& p, const Point& q, const Point& r) const
{ return centroid(p,q,r); }
Point
operator()(const Point& p, const Point& q,
const Point& r, const Point& s) const
{ return centroid(p,q,r,s); }
};
template <class Point, class Line>
class pl_Bisector
{
public:
typedef Line result_type;
typedef Arity_tag< 2 > Arity;
Line
operator()(const Point& p, const Point& q) const
{ return bisector(p,q); }
};
template <class Vector>
class v_Opposite
{
public:
typedef Vector result_type;
typedef Arity_tag< 1 > Arity;
Vector
operator()(const Vector& v) const
{ return -v; }
};
template <class Vector>
class v_Cross_product
{
public:
typedef Vector result_type;
typedef Arity_tag< 2 > Arity;
Vector
operator()(const Vector& v, const Vector& w) const
{ return cross_product(v, w); }
};
template <class Vector>
class v_Base
{
public:
typedef Vector result_type;
typedef Arity_tag< 2 > Arity;
template <class Plane>
Vector
operator()( const Plane& pl, int index )
{
if (index == 1)
return pl.base1();
else
return pl.base2();
}
};
class Intersect
{
public:
typedef CGAL::Object result_type;
typedef Arity_tag< 2 > Arity;
template <class T1, class T2>
CGAL::Object
operator()(const T1& t1, const T2& t2) const
{ return intersection( t1, t2); }
};
class Do_intersect
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class T1, class T2>
bool
operator()(const T1& t1, const T2& t2) const
{ return do_intersect( t1, t2); }
};
class Assign
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class T1>
bool
operator()(T1& t1, const CGAL::Object& o) const
{ return assign( t1, o); }
};
template <class ReturnType>
class Call_y_at_x_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 2 > Arity;
template <class Cls>
ReturnType
operator()( const Cls& c, const ReturnType& x) const
{ return c.y_at_x(x); }
};
template <class ReturnType>
class Call_x_at_y_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 2 > Arity;
template <class Cls>
ReturnType
operator()( const Cls& c, const ReturnType& x) const
{ return c.x_at_y(x); }
};
template <class ReturnType>
class Call_squared_length_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 1 > Arity;
template <class Cls>
ReturnType
operator()( const Cls& c) const
{ return c.squared_length(); }
};
template <class ReturnType>
class Call_squared_distance
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 2 > Arity;
template <class T1, class T2>
ReturnType
operator()( const T1& t1, const T2& t2) const
{ return squared_distance(t1, t2); }
};
template <class ReturnType>
class Call_squared_radius
{
public:
typedef ReturnType result_type;
template <class T1>
ReturnType
operator()( const T1& t1) const
{ return t1.squared_radius(); }
template <class T1>
ReturnType
operator()( const T1& t1, const T1& t2, const T1& t3) const
{ return squared_radius(t1, t2, t3); }
template <class T1>
ReturnType
operator()( const T1& t1, const T1& t2, const T1& t3, const T1& t4) const
{ return squared_radius(t1, t2, t3, t4); }
};
class p_Angle
{
public:
typedef Angle result_type;
typedef Arity_tag< 3 > Arity;
template <class T>
Angle
operator()(const T& p, const T& q, const T& r) const
{ return angle(p, q, r); }
};
template <class Point_3>
class p_Lifted
{
public:
typedef Point_3 result_type;
typedef Arity_tag< 2 > Arity;
template <class Plane, class Point_2>
Point_3
operator()(const Plane& p, const Point_2& pt) const
{ return p.to_3d(pt); }
};
class Counterclockwise_in_between
{
public:
typedef bool result_type;
typedef Arity_tag< 3 > Arity;
template <class T>
bool
operator()(const T& p, const T& q, const T& r) const
{ return p.counterclockwise_in_between(q,r); }
};
class Collinear
{
public:
typedef bool result_type;
typedef Arity_tag< 3 > Arity;
template <class T>
bool
operator()(const T& p, const T& q, const T& r) const
{ return collinear(p,q,r); }
};
class Coplanar
{
public:
typedef bool result_type;
typedef Arity_tag< 4 > Arity;
template <class T>
bool
operator()(const T& p, const T& q, const T& r, const T& s) const
{ return coplanar(p,q,r,s); }
};
class Coplanar_orientation
{
public:
typedef Orientation result_type;
template <class P>
Orientation
operator()(const P& p, const P& q, const P& r) const
{ return coplanar_orientation(p,q,r); }
template <class P>
Orientation
operator()(const P& p, const P& q, const P& r, const P& t) const
{ return coplanar_orientation(p,q,r,t); }
};
class Coplanar_side_of_bounded_circle
{
public:
typedef Bounded_side result_type;
typedef Arity_tag< 4 > Arity;
template <class P>
Bounded_side
operator()(const P& p, const P& q, const P& r, const P& t) const
{ return coplanar_side_of_bounded_circle(p,q,r,t); }
};
class Side_of_oriented_circle
{
public:
typedef Oriented_side result_type;
typedef Arity_tag< 4 > Arity;
template <class T>
Oriented_side
operator()(const T& p, const T& q, const T& r, const T& t) const
{ return side_of_oriented_circle(p,q,r,t); }
};
class Side_of_bounded_circle
{
public:
typedef Bounded_side result_type;
template <class T>
Bounded_side
operator()(const T& p, const T& q, const T& t) const
{ return side_of_bounded_circle(p,q,t); }
template <class T>
Bounded_side
operator()(const T& p, const T& q, const T& r, const T& t) const
{ return side_of_bounded_circle(p,q,r,t); }
};
class Side_of_oriented_sphere
{
public:
typedef Oriented_side result_type;
typedef Arity_tag< 5 > Arity;
template <class T>
Oriented_side
operator()(const T& p, const T& q, const T& r, const T& s,
const T& t) const
{ return side_of_oriented_sphere(p,q,r,s,t); }
};
class Side_of_bounded_sphere
{
public:
typedef Bounded_side result_type;
template <class T>
Bounded_side
operator()(const T& p, const T& q, const T& t) const
{ return side_of_bounded_sphere(p,q,t); }
template <class T>
Bounded_side
operator()(const T& p, const T& q, const T& r, const T& t) const
{ return side_of_bounded_sphere(p,q,r,t); }
template <class T>
Bounded_side
operator()(const T& p, const T& q, const T& r, const T& s,
const T& t) const
{ return side_of_bounded_sphere(p,q,r,s,t); }
};
class Call_is_horizontal
{
public:
typedef bool result_type;
typedef Arity_tag< 1 > Arity;
template <class Cls>
bool
operator()( const Cls& c) const
{ return c.is_horizontal(); }
};
class Call_is_vertical
{
public:
typedef bool result_type;
typedef Arity_tag< 1 > Arity;
template <class Cls>
bool
operator()( const Cls& c) const
{ return c.is_vertical(); }
};
class Call_is_degenerate
{
public:
typedef bool result_type;
typedef Arity_tag< 1 > Arity;
template <class Cls>
bool
operator()( const Cls& c) const
{ return c.is_degenerate(); }
};
class Call_has_on_bounded_side
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class Cls, class Arg>
bool
operator()( const Cls& c, const Arg& a) const
{ return c.has_on_bounded_side(a); }
};
class Call_has_on_unbounded_side
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class Cls, class Arg>
bool
operator()( const Cls& c, const Arg& a) const
{ return c.has_on_unbounded_side(a); }
};
class Call_has_on_boundary
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class Cls, class Arg>
bool
operator()( const Cls& c, const Arg& a) const
{ return c.has_on_boundary(a); }
};
class Call_has_on_positive_side
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class Cls, class Arg>
bool
operator()( const Cls& c, const Arg& a) const
{ return c.has_on_positive_side(a); }
};
class Call_has_on_negative_side
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class Cls, class Arg>
bool
operator()( const Cls& c, const Arg& a) const
{ return c.has_on_negative_side(a); }
};
class Call_oriented_side
{
public:
typedef Oriented_side result_type;
typedef Arity_tag< 2 > Arity;
template <class Cls, class Arg>
Oriented_side
operator()( const Cls& c, const Arg& a) const
{ return c.oriented_side(a); }
};
class Call_bounded_side
{
public:
typedef Bounded_side result_type;
typedef Arity_tag< 2 > Arity;
template <class Cls, class Arg>
Bounded_side
operator()( const Cls& c, const Arg& a) const
{ return c.bounded_side(a); }
};
class Less_x
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class T1, class T2>
bool
operator()( const T1& a1, const T2& a2) const
{ return less_x(a1,a2); }
};
class Less_y
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class T1, class T2>
bool
operator()( const T1& a1, const T2& a2) const
{ return less_y(a1,a2); }
};
class Less_z
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class T1, class T2>
bool
operator()( const T1& a1, const T2& a2) const
{ return less_y(a1,a2); }
};
class Less_xy
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class T1, class T2>
bool
operator()( const T1& a1, const T2& a2) const
{ return lexicographically_xy_smaller(a1,a2); }
};
class Less_yx
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class T1, class T2>
bool
operator()( const T1& a1, const T2& a2) const
{ return lexicographically_yx_smaller(a1,a2); }
};
class Less_xyz
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class T1, class T2>
bool
operator()( const T1& a1, const T2& a2) const
{ return lexicographically_xyz_smaller(a1,a2); }
};
class Equal
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class T1, class T2>
bool
operator()(const T1& p, const T2& q) const
{ return p == q; }
};
class Equal_x
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class T1, class T2>
bool
operator()( const T1& a1, const T2& a2) const
{ return x_equal(a1,a2); }
};
class Equal_y
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class T1, class T2>
bool
operator()( const T1& a1, const T2& a2) const
{ return y_equal(a1,a2); }
};
class Equal_z
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class T1, class T2>
bool
operator()( const T1& a1, const T2& a2) const
{ return z_equal(a1,a2); }
};
class Equal_xy
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class T1, class T2>
bool
operator()( const T1& a1, const T2& a2) const
{ return equal_xy(a1,a2); }
};
class Equal_xyz
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class T1, class T2>
bool
operator()( const T1& a1, const T2& a2) const
{ return equal_xyz(a1,a2); }
};
class Compare_x
{
public:
typedef Comparison_result result_type;
template <class T1, class T2>
Comparison_result
operator()( const T1& a1, const T2& a2) const
{ return compare_x(a1,a2); }
template <class T1, class T2, class T3>
Comparison_result
operator()( const T1& a1, const T2& a2, const T3& a3) const
{ return compare_x(a1,a2,a3); }
template <class T1, class T2, class T3, class T4>
Comparison_result
operator()( const T1& a1, const T2& a2, const T3& a3, const T4& a4) const
{ return compare_x(a1,a2,a3,a4); }
};
class Compare_y
{
public:
typedef Comparison_result result_type;
template <class T1, class T2>
Comparison_result
operator()( const T1& a1, const T2& a2) const
{ return compare_y(a1,a2); }
template <class T1, class T2, class T3>
Comparison_result
operator()( const T1& a1, const T2& a2, const T3& a3) const
{ return compare_y(a1,a2,a3); }
template <class T1, class T2, class T3, class T4>
Comparison_result
operator()( const T1& a1, const T2& a2, const T3& a3, const T4& a4) const
{ return compare_y(a1,a2,a3,a4); }
};
class Compare_z
{
public:
typedef Comparison_result result_type;
typedef Arity_tag< 2 > Arity;
template <class T1, class T2>
Comparison_result
operator()( const T1& a1, const T2& a2) const
{ return compare_z(a1,a2); }
};
class Compare_xy
{
public:
typedef Comparison_result result_type;
typedef Arity_tag< 2 > Arity;
template <class T1, class T2>
Comparison_result
operator()( const T1& a1, const T2& a2) const
{ return compare_xy(a1,a2); }
};
class Compare_xyz
{
public:
typedef Comparison_result result_type;
typedef Arity_tag< 2 > Arity;
template <class T1, class T2>
Comparison_result
operator()( const T1& a1, const T2& a2) const
{ return compare_xyz(a1,a2); }
};
class Compare_y_at_x
{
public:
typedef Comparison_result result_type;
template <class T1, class T2>
Comparison_result
operator()( const T1& a1, const T2& a2) const
{ return compare_y_at_x(a1,a2); }
template <class T1, class T2, class T3>
Comparison_result
operator()( const T1& a1, const T2& a2, const T3& a3) const
{ return compare_y_at_x(a1,a2,a3); }
template <class T1, class T2, class T3, class T4>
Comparison_result
operator()( const T1& a1, const T2& a2, const T3& a3, const T4& a4) const
{ return compare_y_at_x(a1,a2,a3,a4); }
};
class Compare_x_at_y
{
public:
typedef Comparison_result result_type;
template <class T1, class T2>
Comparison_result
operator()( const T1& a1, const T2& a2) const
{ return compare_x_at_y(a1,a2); }
template <class T1, class T2, class T3>
Comparison_result
operator()( const T1& a1, const T2& a2, const T3& a3) const
{ return compare_x_at_y(a1,a2,a3); }
template <class T1, class T2, class T3, class T4>
Comparison_result
operator()( const T1& a1, const T2& a2, const T3& a3, const T4& a4) const
{ return compare_x_at_y(a1,a2,a3,a4); }
};
template <class T>
class Compare_distance
{
public:
typedef Comparison_result result_type;
typedef Arity_tag< 3 > Arity;
Comparison_result
operator()(const T& p, const T& q, const T& r) const
{ return cmp_dist_to_point(p,q,r); }
};
template <class T>
class Compare_angle_with_x_axis
{
public:
typedef Comparison_result result_type;
typedef Arity_tag< 2 > Arity;
Comparison_result
operator()(const T& p, const T& q) const
{ return compare_angle_with_x_axis(p,q); }
};
class Compare_slope
{
public:
typedef Comparison_result result_type;
typedef Arity_tag< 2 > Arity;
template <class T>
Comparison_result
operator()(const T& l1, const T& l2) const
{ return compare_slopes(l1,l2); }
};
template <class Plane, class Point>
class Less_signed_distance_to_plane
{
public:
typedef bool result_type;
typedef Arity_tag< 3 > Arity;
bool operator()( const Plane & p, const Point& q, const Point& r) const
{ return has_smaller_signed_dist_to_plane(p,q,r); }
};
class Are_ordered_along_line
{
public:
typedef bool result_type;
typedef Arity_tag< 3 > Arity;
template <class T>
bool
operator()(const T& p, const T& q, const T& r) const
{ return are_ordered_along_line(p,q,r); }
};
class Are_strictly_ordered_along_line
{
public:
typedef bool result_type;
typedef Arity_tag< 3 > Arity;
template <class T>
bool
operator()(const T& p, const T& q, const T& r) const
{ return are_strictly_ordered_along_line(p,q,r); }
};
class Collinear_are_ordered_along_line
{
public:
typedef bool result_type;
typedef Arity_tag< 3 > Arity;
template <class T>
bool
operator()(const T& p, const T& q, const T& r) const
{ return collinear_are_ordered_along_line(p,q,r); }
};
class Collinear_are_strictly_ordered_along_line
{
public:
typedef bool result_type;
typedef Arity_tag< 3 > Arity;
template <class T>
bool
operator()(const T& p, const T& q, const T& r) const
{ return collinear_are_strictly_ordered_along_line(p,q,r); }
};
#ifndef CGAL_NO_DEPRECATED_CODE
class Call_transform
{
public:
template <class Transformation, class ArgumentType>
ArgumentType
operator()( const ArgumentType& a, const Transformation& t) const
{ return a.transform(t); }
};
#endif // CGAL_NO_DEPRECATED_CODE
template <class ReturnType>
class Call_source_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 1 > Arity;
template <class Cls>
ReturnType
operator()( const Cls& c) const
{ return c.source(); }
};
template <class ReturnType>
class Call_target_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 1 > Arity;
template <class Cls>
ReturnType
operator()( const Cls& c) const
{ return c.target(); }
};
template <class ReturnType>
class Call_min_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 1 > Arity;
template <class Cls>
ReturnType
operator()( const Cls& c) const
{ return c.min(); }
};
template <class ReturnType>
class Call_max_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 1 > Arity;
template <class Cls>
ReturnType
operator()( const Cls& c) const
{ return c.max(); }
};
template <class ReturnType>
class Call_vertex_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 2 > Arity;
template <class Cls>
ReturnType
operator()( const Cls& c, int i) const
{ return c.vertex(i); }
};
template <class ReturnType>
class Call_direction_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 1 > Arity;
template <class Cls>
ReturnType
operator()( const Cls& c) const
{ return c.direction(); }
};
template <class ReturnType>
class Call_supporting_line_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 1 > Arity;
template <class Cls>
ReturnType
operator()( const Cls& c) const
{ return c.supporting_line(); }
};
template <class ReturnType>
class Call_supporting_plane_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 1 > Arity;
template <class Cls>
ReturnType
operator()( const Cls& c) const
{ return c.supporting_plane(); }
};
template <class ReturnType>
class Call_opposite_to_get
{
public:
typedef ReturnType result_type;
typedef Arity_tag< 1 > Arity;
template <class Cls>
ReturnType
operator()( const Cls& c) const
{ return c.opposite(); }
};
class Call_has_on
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class Cls, class A1>
bool
operator()( const Cls& c, const A1& a1) const
{ return c.has_on(a1); }
};
class Call_collinear_has_on
{
public:
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
template <class Cls, class A1>
bool
operator()( const Cls& c, const A1& a1) const
{ return c.collinear_has_on(a1); }
};
template <class Point>
struct p_Orientation
{
typedef Orientation result_type;
Orientation operator()(const Point& p, const Point& q, const Point& r) const
{ return orientation(p,q,r); }
Orientation operator()(const Point& p, const Point& q, const Point& r,
const Point& s) const
{ return orientation(p,q,r,s); }
};
template <class Point>
struct p_Less_dist_to_point
{
typedef bool result_type;
typedef Arity_tag< 3 > Arity;
bool operator()(const Point& p0, const Point& p1, const Point& p2) const
{ return has_smaller_dist_to_point(p0, p1, p2); }
};
template <class Point>
struct p_Less_xy
{
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
bool operator()( const Point& p1, const Point& p2) const
{ return lexicographically_xy_smaller( p1, p2); }
};
template <class Point>
struct p_Less_yx
{
typedef bool result_type;
typedef Arity_tag< 2 > Arity;
bool operator()( const Point& p1, const Point& p2) const
{ return lexicographically_yx_smaller( p1, p2); }
};
template <class Point>
class p_Less_dist_to_line_2
{
public:
typedef bool result_type;
typedef Arity_tag< 4 > Arity;
bool operator()(const Point&a, const Point& b,
const Point& c, const Point& d) const
{
Comparison_result
res = compare_signed_distance_to_line( a, b, c, d);
if ( res == LARGER )
{
return false;
}
else if ( res == SMALLER )
{
return true;
}
else
{
return lexicographically_xy_smaller( c, d );
}
}
};
template <class Point>
class p_Less_rotate_ccw
{
public:
typedef bool result_type;
typedef Arity_tag< 3 > Arity;
bool operator()(const Point& r, const Point& p, const Point& q) const
{
Orientation ori = orientation(r, p, q);
if ( ori == LEFTTURN )
{
return true;
}
else if ( ori == RIGHTTURN )
{
return false;
}
else
{
if (p == r) return false;
if (q == r) return true;
if (p == q) return false;
return collinear_are_ordered_along_line( r, q, p);
}
}
};
template <class Point>
struct p_Left_turn
{
typedef bool result_type;
typedef Arity_tag< 3 > Arity;
bool operator()(const Point& p, const Point& q, const Point& r) const
{ return left_turn(p,q,r); }
};
} // end namespace CGALi
CGAL_END_NAMESPACE
#endif // CGAL_KERNEL_FUNCTION_OBJECTS_H
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