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added construct_centroid_2 and compute_determinant_2 objects to the projection classes

This commit is contained in:
Dmitry Anisimov 2021-05-20 17:31:52 +02:00
parent e3d5fccf5b
commit 9357545031
1 changed files with 56 additions and 0 deletions
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56
Kernel_23/include/CGAL/internal/Projection_traits_3.h
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@ -282,6 +282,53 @@ public:
}
};
template <class R,int dim>
class Construct_centroid_projected_3
{
public:
typedef typename R::Point_3 Point_3;
typedef typename R::Point_2 Point_2;
typedef typename R::FT RT;
RT x(const Point_3 &p) const { return Projector<R,dim>::x(p); }
RT y(const Point_3 &p) const { return Projector<R,dim>::y(p); }
Point_2 project(const Point_3& p) const
{
return Point_2(x(p), y(p));
}
RT operator()(const Point_3& p, const Point_3& q, const Point_3& r) const
{
const Point_2 p2(project(p));
const Point_2 q2(project(q));
const Point_2 r2(project(r));
return centroid(p2, q2, r2);
}
};
template <class R,int dim>
class Compute_determinant_projected_3
{
public:
typedef typename R::Vector_3 Vector_3;
typedef typename R::Vector_2 Vector_2;
typedef typename R::FT RT;
RT x(const Vector_3 &v) const { return Projector<R,dim>::x(v); }
RT y(const Vector_3 &v) const { return Projector<R,dim>::y(v); }
Vector_2 project(const Vector_3& v) const
{
return Vector_2(x(v), y(v));
}
RT operator()(const Vector_3& v, const Vector_3& w) const
{
const Vector_2 v2(project(v));
const Vector_2 w2(project(w));
return determinant(v2, w2);
}
};
template <class R,int dim>
class Intersect_projected_3
{
@ -817,6 +864,9 @@ public:
typedef Power_side_of_oriented_power_circle_projected_3<Rp, dim> Power_side_of_oriented_power_circle_2;
typedef Construct_bbox_projected_2<Rp,dim> Construct_bbox_2;
typedef Construct_centroid_projected_3<RP,dim> Construct_centroid_2;
typedef Compute_determinant_projected_3<RP,dim> Compute_determinant_2;
typedef typename Rp::Construct_point_3 Construct_point_2;
typedef typename Rp::Construct_weighted_point_3 Construct_weighted_point_2;
typedef typename Rp::Construct_segment_3 Construct_segment_2;
@ -1014,6 +1064,12 @@ public:
Construct_bbox_2 construct_bbox_2_object() const
{return Construct_bbox_2();}
Construct_centroid_2 construct_centroid_2_object() const
{return Construct_centroid_2();}
Compute_determinant_2 compute_determinant_2_object() const
{return Compute_determinant_2();}
Compute_scalar_product_2 compute_scalar_product_2_object() const
{return Compute_scalar_product_2();}