/usr/include/getfem/bgeot_poly_composite.h is in libgetfem++-dev 4.2.1~beta1~svn4482~dfsg-2build1.
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/*===========================================================================
Copyright (C) 2002-2012 Yves Renard
This file is a part of GETFEM++
Getfem++ is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version along with the GCC Runtime Library
Exception either version 3.1 or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License and GCC Runtime Library Exception for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
As a special exception, you may use this file as it is a part of a free
software library without restriction. Specifically, if other files
instantiate templates or use macros or inline functions from this file,
or you compile this file and link it with other files to produce an
executable, this file does not by itself cause the resulting executable
to be covered by the GNU Lesser General Public License. This exception
does not however invalidate any other reasons why the executable file
might be covered by the GNU Lesser General Public License.
===========================================================================*/
/**@file bgeot_poly_composite.h
@author Yves Renard <Yves.Renard@insa-lyon.fr>
@date August 26, 2002.
@brief Handle composite polynomials.
Composite polynomials are used in hierarchical FEM, composite geometric
transformations and composite fems.
*/
#ifndef BGEOT_POLY_COMPOSITE_H__
#define BGEOT_POLY_COMPOSITE_H__
#include "bgeot_poly.h"
#include "bgeot_imbricated_box.h"
#include "bgeot_mesh.h"
// TODO : Use of rtree instead of dal::dynamic_tree_sorted<base_node,
// imbricated_box_less>
namespace bgeot {
struct mesh_precomposite {
typedef dal::dynamic_tree_sorted<base_node, imbricated_box_less> PTAB;
const basic_mesh *msh;
PTAB vertexes;
std::vector<base_matrix> gtrans;
std::vector<scalar_type> det;
std::vector<base_node> orgs;
mutable std::vector<bool> elt;
const basic_mesh &linked_mesh(void) const { return *msh; }
size_type nb_convex(void) const { return gtrans.size(); }
dim_type dim(void) const { return msh->dim(); }
pgeometric_trans trans_of_convex(size_type ic) const
{ return msh->trans_of_convex(ic); }
mesh_precomposite(const basic_mesh &m);
mesh_precomposite(void) : msh(0) {}
};
typedef const mesh_precomposite *pmesh_precomposite;
class polynomial_composite {
protected :
const mesh_precomposite *mp;
std::vector<base_poly> polytab;
bool local_coordinate; // are the polynomials described on the local
// coordinates of each sub-element or on global coordinates.
public :
template <class ITER> scalar_type eval(const ITER &it) const;
scalar_type eval(const base_node &pt) const;
void derivative(short_type k);
base_poly &poly_of_subelt(size_type l) { return polytab[l]; }
const base_poly &poly_of_subelt(size_type l) const { return polytab[l]; }
polynomial_composite(bool lc = true) : local_coordinate(lc) {}
polynomial_composite(const mesh_precomposite &m, bool lc = true);
};
template <class ITER>
scalar_type polynomial_composite::eval(const ITER &it) const {
base_node pt(mp->dim());
std::copy(it, it + mp->dim(), pt.begin());
return eval(pt);
}
void structured_mesh_for_convex(pconvex_ref cvr, short_type k,
pbasic_mesh &pm, pmesh_precomposite &pmp,
bool force_simplexification=false);
/** simplexify a convex_ref.
@param cvr the convex_ref.
@param k the refinement level.
@return a pointer to a statically allocated mesh. Do no free it!
*/
const basic_mesh *
refined_simplex_mesh_for_convex(pconvex_ref cvr, short_type k);
/** simplexify the faces of a convex_ref
@param cvr the convex_ref.
@param k the refinement level.
@return vector of pointers to a statically allocated
mesh_structure objects. Do no free them! The point numbers in
the mesh_structure refer to the points of the mesh given by
refined_simplex_mesh_for_convex.
*/
const std::vector<mesh_structure*>&
refined_simplex_mesh_for_convex_faces(pconvex_ref cvr, short_type k);
} /* end of namespace bgeot. */
#endif
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