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add Oriented_side_2 to Projection_traits_3 (for use in the demo)

This commit is contained in:
Jane Tournois 2021-09-10 17:29:27 +02:00
parent 6c96e4ad52
commit be2f8457d3
1 changed files with 40 additions and 0 deletions
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40
Kernel_23/include/CGAL/Kernel_23/internal/Projection_traits_3.h
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@ -115,6 +115,41 @@ public:
} }
}; };
template <class R, int dim>
class Oriented_side_projected_3
{
public:
typedef typename R::Segment_2 Segment_2;
typedef typename R::Triangle_2 Triangle_2;
typedef typename R::Point_3 Point;
typedef typename R::Segment_3 Segment_3;
typedef typename R::Triangle_3 Triangle_3;
typename R::FT x(const Point& p) const { return Projector<R, dim>::x(p); }
typename R::FT y(const Point& p) const { return Projector<R, dim>::y(p); }
typename R::Point_2 project(const Point& p) const
{
return typename R::Point_2(x(p), y(p));
}
Triangle_2 project(const Triangle_3& t) const
{
typename R::Construct_vertex_3 v;
return Triangle_2(project(v(t, 0)), project(v(t, 1)), project(v(t, 2)));
}
Segment_2 project(const Segment_3& s) const
{
typename R::Construct_source_3 source;
typename R::Construct_target_3 target;
return Segment_2(project(source(s)), project(target(s)));
}
CGAL::Oriented_side operator()(const Segment_3& s, const Triangle_3& t) const
{
return typename R::Oriented_side_2()(project(s), project(t));
}
};
template <class R,int dim> template <class R,int dim>
class Side_of_oriented_circle_projected_3 class Side_of_oriented_circle_projected_3
{ {
@ -854,6 +889,7 @@ public:
typedef typename Projector<R,dim>::Compare_x_2 Compare_x_2; typedef typename Projector<R,dim>::Compare_x_2 Compare_x_2;
typedef typename Projector<R,dim>::Compare_y_2 Compare_y_2; typedef typename Projector<R,dim>::Compare_y_2 Compare_y_2;
typedef Orientation_projected_3<Rp,dim> Orientation_2; typedef Orientation_projected_3<Rp,dim> Orientation_2;
typedef Oriented_side_projected_3<Rp,dim> Oriented_side_2;
typedef Angle_projected_3<Rp,dim> Angle_2; typedef Angle_projected_3<Rp,dim> Angle_2;
typedef Side_of_oriented_circle_projected_3<Rp,dim> Side_of_oriented_circle_2; typedef Side_of_oriented_circle_projected_3<Rp,dim> Side_of_oriented_circle_2;
typedef Less_signed_distance_to_line_projected_3<Rp,dim> Less_signed_distance_to_line_2; typedef Less_signed_distance_to_line_projected_3<Rp,dim> Less_signed_distance_to_line_2;
@ -1014,6 +1050,10 @@ public:
orientation_2_object() const orientation_2_object() const
{ return Orientation_2();} { return Orientation_2();}
Oriented_side_2
oriented_side_2_object() const
{ return Oriented_side_2();}
Side_of_oriented_circle_2 Side_of_oriented_circle_2
side_of_oriented_circle_2_object() const side_of_oriented_circle_2_object() const
{return Side_of_oriented_circle_2();} {return Side_of_oriented_circle_2();}