is_point_inside_polyhedron_sa Function

  1. fossil_file_stl_object.f90
  2. fossil_file_stl_object
  3. is_point_inside_polyhedron_sa

private pure function is_point_inside_polyhedron_sa(self, point) result(is_inside)

Determinate is a point is inside or not to a polyhedron described by STL facets by means of the solid angle criteria.

Arguments

Type IntentOptional AttributesName
class(file_stl_object), intent(in) :: self

File STL.
type(vector_R8P), intent(in) :: point

Point coordinates.

Return Value logical

Check result.


Source Code

is_point_inside_polyhedron_sa

Source Code

   pure function is_point_inside_polyhedron_sa(self, point) result(is_inside)
   !< Determinate is a point is inside or not to a polyhedron described by STL facets by means of the solid angle criteria.
   !<
   !< @note STL's metrix must be already computed.
   class(file_stl_object), intent(in) :: self        !< File STL.
   type(vector_R8P),       intent(in) :: point       !< Point coordinates.
   logical                            :: is_inside   !< Check result.
   real(R8P)                          :: solid_angle !< Solid angle of STL polyhedra projected on point unit sphere.
   integer(I4P)                       :: f           !< Counter.

   solid_angle = 0._R8P
   do f=1, self%facets_number
      solid_angle = solid_angle + self%facet(f)%solid_angle(point=point)
   enddo
   if (solid_angle < -2._R8P * PI .or. 2._R8P * PI < solid_angle) then
     is_inside = .true.
   else
     is_inside = .false.
   endif
   endfunction is_point_inside_polyhedron_sa

All Procedures

aabb_assign_aabb aabb_node_assign_aabb_node aabb_tree_assign_aabb_tree add_facets add_facets add_vertex_occurrence allocate_facets analize bmax bmin build_connectivity check_normal check_vertices_occurrencies cli_parse cli_parse cli_parse cli_parse cli_parse cli_parse close_file closest_point closest_point compute_bb_from_facets compute_metrix compute_metrix compute_normal compute_normals compute_octants compute_octants compute_volume create_aabb_tree destroy destroy destroy destroy destroy distance distance distance distance distance distance_from_facets distance_from_facets do_ray_intersect do_ray_intersect do_ray_intersect edge_connection_in_other_ref facet_assign_facet file_stl_assign_file_stl first_child_node first_node flip_edge has_facets has_facets initialize initialize initialize initialize initialize is_allocated is_inside is_point_inside_polyhedron_ri is_point_inside_polyhedron_sa load_facets_number_from_file load_from_file load_from_file_ascii load_from_file_binary load_header_from_file make_normal_consistent mirror_by_matrix mirror_by_matrix mirror_by_normal mirror_by_normal nodes_number nodes_number_at_level open_file parent_node ray_intersections_number ray_intersections_number ray_intersections_number resize resize reverse_normal reverse_normals rotate_by_axis_angle rotate_by_axis_angle rotate_by_matrix rotate_by_matrix sanitize_normals save_facets_into_file_stl save_facets_into_file_stl save_geometry_tecplot_ascii save_geometry_tecplot_ascii save_geometry_tecplot_ascii save_header_into_file save_into_file save_into_file_ascii save_into_file_binary save_into_file_stl save_trailer_into_file solid_angle statistics tetrahedron_volume translate translate update_connectivity update_extents update_extents vertex vertex_global_id