MOAB: Mesh Oriented datABase  (version 5.4.1)
InverseMetricWeight.cpp
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00001 /* *****************************************************************
00002     MESQUITE -- The Mesh Quality Improvement Toolkit
00003 
00004     Copyright 2007 Sandia National Laboratories.  Developed at the
00005     University of Wisconsin--Madison under SNL contract number
00006     624796.  The U.S. Government and the University of Wisconsin
00007     retain certain rights to this software.
00008 
00009     This library is free software; you can redistribute it and/or
00010     modify it under the terms of the GNU Lesser General Public
00011     License as published by the Free Software Foundation; either
00012     version 2.1 of the License, or (at your option) any later version.
00013 
00014     This library is distributed in the hope that it will be useful,
00015     but WITHOUT ANY WARRANTY; without even the implied warranty of
00016     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00017     Lesser General Public License for more details.
00018 
00019     You should have received a copy of the GNU Lesser General Public License
00020     (lgpl.txt) along with this library; if not, write to the Free Software
00021     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00022 
00023     (2007) [email protected]
00024 
00025   ***************************************************************** */
00026 
00027 /** \file InverseMetricWeight.cpp
00028  *  \brief
00029  *  \author Jason Kraftcheck
00030  */
00031 
00032 #include "Mesquite.hpp"
00033 #include "InverseMetricWeight.hpp"
00034 #include "ElemSampleQM.hpp"
00035 #include "MsqError.hpp"
00036 
00037 namespace MBMesquite
00038 {
00039 
00040 InverseMetricWeight::~InverseMetricWeight() {}
00041 
00042 double InverseMetricWeight::get_weight( PatchData& pd, size_t element, Sample sample, MsqError& err )
00043 {
00044     size_t h = ElemSampleQM::handle( sample, element );
00045     double value;
00046     bool flag = mMetric->evaluate( pd, h, value, err );
00047     MSQ_ERRZERO( err );
00048     if( !flag )
00049     {
00050         MSQ_SETERR( err )
00051         ( "Invalid metric value canot be used as target weight", MsqError::INVALID_STATE );
00052         return 0.0;
00053     }
00054 
00055     return 1.0 / value;
00056 }
00057 
00058 }  // namespace MBMesquite
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