Base class for reference convexes. More...
#include <bgeot_convex_ref.h>
Inherits dal::static_stored_object, and bgeot::convex< base_node >.
Inherited by bgeot::equilateral_simplex_of_ref_, bgeot::generic_dummy_, bgeot::K_simplex_of_ref_, bgeot::prism_incomplete_P2_of_ref_, bgeot::product_ref_, bgeot::pyramid_Q2_incomplete_of_ref_, bgeot::pyramid_QK_of_ref_, bgeot::Q2_incomplete_of_ref_, and bgeot::torus_reference.
Public Member Functions | |
| virtual scalar_type | is_in (const base_node &) const =0 |
| return a negative or null number if the base_node is in the convex. | |
| virtual scalar_type | is_in_face (short_type, const base_node &) const =0 |
| return a null (or almost zero) if pt is in the face of the convex. More... | |
| virtual void | project_into (base_node &pt) const |
| will project any given point lying outside the convex onto the convex outer surface | |
| const std::vector< base_small_vector > & | normals () const |
| return the normal vector for each face. | |
| const stored_point_tab & | points () const |
| return the vertices of the reference convex. | |
| const mesh_structure * | simplexified_convex () const |
| return a mesh structure composed of simplexes whose union is the reference convex. More... | |
 Public Member Functions inherited from bgeot::convex< base_node > | |
| ref_convex_pt_ct | dir_points () const |
| Return "direct" points. More... | |
| dref_convex_pt_ct | dir_points_of_face (short_type i) const |
| Direct points for a given face. More... | |
| convex (pconvex_structure c, const std::vector< base_node > &t) | |
| Build a convex object. More... | |
Friends | |
| pconvex_ref | basic_convex_ref (pconvex_ref cvr) |
| return the associated order 1 reference convex. | |
Detailed Description
Base class for reference convexes.
Examples of reference convexes are (the order 1 triangle (0,0)-(1,0)-(0,1), the order 2 segment (0)-(.5)-(1.), etc...). This class stores :
- a list of points (vertices of the reference convex, plus other points for reference convexes of degree > 1).
- a normal for each face of the convex.
- a mesh structure defining the smallest simplex partition of the convex.
- a pointer to the "basic convex_ref": for a convex_ref of degree k, this is a pointer to the correspounding convex_ref of degree 1.
Definition at line 91 of file bgeot_convex_ref.h.
Member Function Documentation
◆ is_in_face()
|
pure virtual |
return a null (or almost zero) if pt is in the face of the convex.
Does not control if the point is in the convex, but if a point supposed to be in a convex is in this face. return a negative number if the point is in the side of the face where the element is and positive in the other side.
◆ simplexified_convex()
| const mesh_structure * bgeot::convex_of_reference::simplexified_convex | ( | ) | const |
return a mesh structure composed of simplexes whose union is the reference convex.
All simplexes have the same (direct) orientation.
Definition at line 217 of file bgeot_convex_ref.cc.
The documentation for this class was generated from the following files:
- src/getfem/bgeot_convex_ref.h
- src/bgeot_convex_ref.cc
