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124 | /* *****************************************************************
MESQUITE -- The Mesh Quality Improvement Toolkit
Copyright 2009 Sandia National Laboratories. Developed at the
University of Wisconsin--Madison under SNL contract number
624796. The U.S. Government and the University of Wisconsin
retain certain rights to this software.
This library 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 2.1 of the License, or (at your option) any later version.
This library 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 for more details.
You should have received a copy of the GNU Lesser General Public License
(lgpl.txt) along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
(2009) [email protected]
***************************************************************** */
/** \file EdgeQM.hpp
* \brief
* \author Jason Kraftcheck
*/
#ifndef MSQ_EDGE_QM_HPP
#define MSQ_EDGE_QM_HPP
#include "Mesquite.hpp"
#include "QualityMetric.hpp"
namespace MBMesquite
{
/**\brief Base type for quality metrics evaluated for each edge */
class EdgeQM : public QualityMetric
{
public:
MESQUITE_EXPORT virtual ~EdgeQM();
MESQUITE_EXPORT virtual MetricType get_metric_type() const<--- Function in derived class
{
return VERTEX_BASED;
}
/**\brief Returns list of edge indices in PatchData
*
*This method returns metric evaluation points for every
*logical edge in the patch if \c free_vertices_only is
*false. If \c free_vertices_only is true then only the
*subset of edges adjacent to at least one free vertex are
*returned.
*/
MESQUITE_EXPORT virtual void get_evaluations( PatchData& pd,<--- Function in derived class
std::vector< size_t >& handles,
bool free_vertices_only,
MsqError& err );
/**\brief Returns list of edge indices in PatchData
*
*This method returns metric evaluation points only a subset
*of the logical edges in a patch such that if one iterates
*over the mesh using element-on-vertex patches a given edge
*is returned only once for the set of all patches. This is
*accomplished by returning only edges adjacent to vertices
*without the MSQ_PATCH_FIXED flag set, and only if the handle for
*the opposite vertex is greater than the one with the flag
*set.
*/
MESQUITE_EXPORT virtual void get_single_pass( PatchData& pd,<--- Function in derived class
std::vector< size_t >& handles,
bool free_vertices_only,
MsqError& err );
MESQUITE_EXPORT static void get_edge_evaluations( PatchData& pd,
std::vector< size_t >& handles,
bool free_vertices_only,
bool single_pass_evaluate,
MsqError& err );
/**\brief Default implementation for all edge-based metrics
*
* Fill 'indices' with all free vertex indices in element,
* and call 'evaluate'.
*/
MESQUITE_EXPORT virtual bool evaluate_with_indices( PatchData& pd,<--- Function in derived class
size_t handle,
double& value,
std::vector< size_t >& indices,
MsqError& err );
enum
{
ELEM_EDGE_BITS = 4,
ELEM_INDEX_BITS = 8 * sizeof( size_t ) - ELEM_EDGE_BITS,
ELEM_EDGE_MASK = ( ( (size_t)1 ) << ELEM_INDEX_BITS ) - 1
};
inline static size_t handle( unsigned edge_no, size_t elem_idx )
{
assert( elem_idx <= ELEM_EDGE_MASK );
return ( ( (size_t)edge_no ) << ELEM_INDEX_BITS ) | elem_idx;
}
inline static unsigned edge( size_t handle )
{
return handle >> ELEM_INDEX_BITS;
}
inline static unsigned elem( size_t handle )
{
return handle & ELEM_EDGE_MASK;
}
};
} // namespace MBMesquite
#endif
|