Point/polyhedron relations

Geometric tools relative to points and polyhedron More...

Functions/Subroutines
pure subroutine	mod_cg3_point_polyhedron::cg3_point_face_closest_point (polyhedron, face, point, closest_point)
	Find the closest point on a polyhedron face to a given point.
integer pure function	mod_cg3_point_polyhedron::cg3_face_winding_number (polyhedron, face, point)
	Compute the winding number of a point for a face of a polyhedron.
logical pure function	mod_cg3_point_polyhedron::cg3_does_sphere_intersect_face (polyhedron, face, center, radius)
	Check if a sphere intersects a face polyhedron.
logical pure function	mod_cg3_point_polyhedron::cg3_is_point_below_face (polyhedron, face, point)
	Check whether a point is below the plane generated by the given face.

Detailed Description

Geometric tools relative to points and polyhedron

Function/Subroutine Documentation

cg3_does_sphere_intersect_face()

logical pure function mod_cg3_point_polyhedron::cg3_does_sphere_intersect_face	(	type(t_polyhedron), intent(in)	polyhedron,
		integer, intent(in)	face,
		double precision, dimension(3), intent(in)	center,
		double precision, intent(in)	radius )

Check if a sphere intersects a face polyhedron.

Parameters

[in]	polyhedron	any polyhedron
[in]	face	index of any face of the polyhedron
[in]	center	coordinates of the sphere center
[in]	radius	radius of the center

cg3_face_winding_number()

integer pure function mod_cg3_point_polyhedron::cg3_face_winding_number	(	type(t_polyhedron), intent(in)	polyhedron,
		integer, intent(in)	face,
		double precision, dimension(3), intent(in)	point )

Compute the winding number of a point for a face of a polyhedron.

Parameters

[in]	polyhedron	any polyhedron
[in]	face	index of any face of the polyhedron
[in]	point	coordinates of any point that lies on the same plane as the face

cg3_is_point_below_face()

logical pure function mod_cg3_point_polyhedron::cg3_is_point_below_face	(	type(t_polyhedron), intent(in)	polyhedron,
		integer, intent(in)	face,
		double precision, dimension(3), intent(in)	point )

Check whether a point is below the plane generated by the given face.

Parameters

[in]	polyhedron	any polyhedron
[in]	face	index of any face of the polyhedron
[in]	point	coordinates of a point

cg3_point_face_closest_point()

pure subroutine mod_cg3_point_polyhedron::cg3_point_face_closest_point	(	type(t_polyhedron), intent(in)	polyhedron,
		integer, intent(in)	face,
		double precision, dimension(3), intent(in)	point,
		double precision, dimension(3), intent(out)	closest_point )

Find the closest point on a polyhedron face to a given point.

Parameters

[in]	polyhedron	any polyhedron
[in]	face	face index of the polyhedron
[in]	point	any point coordinates
[out]	closest_point	coordinates of the closest point on the given face