MOAB: Mesh Oriented datABase  (version 5.2.1)
ElementAvgQM.cpp
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00001 /* *****************************************************************
00002     MESQUITE -- The Mesh Quality Improvement Toolkit
00003 
00004     Copyright 2006 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   ***************************************************************** */
00024 
00025 /** \file ElementAvgQM.cpp
00026  *  \brief
00027  *  \author Boyd Tidwell
00028  */
00029 
00030 #include "Mesquite.hpp"
00031 #include "ElementAvgQM.hpp"
00032 #include "ElemSampleQM.hpp"
00033 #include "MsqError.hpp"
00034 #include "PatchData.hpp"
00035 #include <limits>
00036 
00037 namespace MBMesquite
00038 {
00039 
00040 ElementAvgQM::ElementAvgQM( ElemSampleQM* metric ) : mMetric( metric ) {}
00041 
00042 ElementAvgQM::~ElementAvgQM() {}
00043 
00044 std::string ElementAvgQM::get_name() const
00045 {
00046     std::string result( "ElementAvgQM(" );
00047     result += mMetric->get_name();
00048     result += ")";
00049     return result;
00050 }
00051 
00052 int ElementAvgQM::get_negate_flag() const
00053 {
00054     return get_quality_metric()->get_negate_flag();
00055 }
00056 
00057 bool ElementAvgQM::evaluate( PatchData& pd, size_t handle, double& value, MsqError& err )
00058 {
00059     ElemSampleQM* qm = get_quality_metric();
00060     mHandles.clear();
00061     qm->get_element_evaluations( pd, handle, mHandles, err );
00062     MSQ_ERRFALSE( err );
00063 
00064     bool valid = true;
00065     double tmpval;
00066     double accumulate = 0.0;
00067     int num_values    = 0;
00068     bool tmpvalid;
00069 
00070     value = -std::numeric_limits< double >::infinity();
00071     for( std::vector< size_t >::iterator h = mHandles.begin(); h != mHandles.end(); ++h )
00072     {
00073         tmpvalid = qm->evaluate( pd, *h, tmpval, err );
00074         MSQ_ERRZERO( err );
00075         if( !tmpvalid )
00076         {
00077             valid = false;
00078             break;
00079         }
00080         else
00081         {
00082             accumulate += tmpval;
00083             num_values++;
00084         }
00085     }
00086     if( valid ) value = accumulate / num_values;
00087 
00088     return valid;
00089 }
00090 
00091 }  // namespace MBMesquite
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