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add constructions for the intersection point of a plane by a line and of 2 lines 

this is undocumented and allow to have a lazy node for this construction
This commit is contained in:
Sébastien Loriot 2017-01-02 15:28:28 +01:00
parent 0530b49686
commit cba8456715
2 changed files with 56 additions and 0 deletions
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52
Kernel_23/include/CGAL/Kernel/function_objects.h
View File

@ -1104,6 +1104,31 @@ namespace CommonKernelFunctors {
{ return this->operator()(Return_base_tag(), min_hx, min_hy, min_hz, max_hx, max_hy, max_hz); }
};
template <typename K>
class Construct_line_line_intersection_point_3
{
typedef typename K::Line_3 Line;
typedef typename K::Point_3 Point;
typename K::Construct_line_3 construct_line;
public:
typedef Point result_type;
Point
operator()(const Point& l11, const Point& l12,
const Point& l21, const Point& l22) const
{
Line l1 = construct_line(l11, l12);
Line l2 = construct_line(l21, l22);
typename cpp11::result_of<typename K::Intersect_3(Line,Line)>::type
res = typename K::Intersect_3()(l1,l2);
CGAL_assertion(res!=boost::none);
const Point* e_pt = boost::get<Point>(&(*res));
CGAL_assertion(e_pt!=NULL);
return *e_pt;
}
};
template <typename K>
class Construct_max_vertex_2
{
@ -1477,6 +1502,33 @@ namespace CommonKernelFunctors {
};
template <typename K>
class Construct_plane_line_intersection_point_3
{
typedef typename K::Plane_3 Plane;
typedef typename K::Line_3 Line;
typedef typename K::Point_3 Point;
typename K::Construct_plane_3 construct_plane;
typename K::Construct_line_3 construct_line;
public:
typedef Point result_type;
Point
operator()(const Point& p1, const Point& p2, const Point& p3,
const Point& l1, const Point& l2) const
{
Plane plane = construct_plane(p1, p2, p3);
Line line = construct_line( l1, l2 );
typename cpp11::result_of<typename K::Intersect_3(Plane,Line)>::type
res = typename K::Intersect_3()(plane,line);
CGAL_assertion(res!=boost::none);
const Point* e_pt = boost::get<Point>(&(*res));
CGAL_assertion(e_pt!=NULL);
return *e_pt;
}
};
template <typename K>
class Construct_point_on_2
{

4
Kernel_23/include/CGAL/Kernel/interface_macros.h
View File

@ -302,6 +302,8 @@ CGAL_Kernel_cons(Construct_line_2,
construct_line_2_object)
CGAL_Kernel_cons(Construct_line_3,
construct_line_3_object)
CGAL_Kernel_cons(Construct_line_line_intersection_point_3,
construct_line_line_intersection_point_3_object)
CGAL_Kernel_cons(Construct_midpoint_2,
construct_midpoint_2_object)
CGAL_Kernel_cons(Construct_midpoint_3,
@ -370,6 +372,8 @@ CGAL_Kernel_cons(Construct_perpendicular_vector_2,
construct_perpendicular_vector_2_object)
CGAL_Kernel_cons(Construct_plane_3,
construct_plane_3_object)
CGAL_Kernel_cons(Construct_plane_line_intersection_point_3,
construct_plane_line_intersection_point_3_object)
CGAL_Kernel_cons(Construct_point_on_2,
construct_point_on_2_object)
CGAL_Kernel_cons(Construct_point_on_3,