MOAB: Mesh Oriented datABase  (version 5.2.1)
InvTransBarrier.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     (2006) kraftche@cae.wisc.edu
00024 
00025   ***************************************************************** */
00026 
00027 /** \file InvTransBarrier.cpp
00028  *  \brief
00029  *  \author Jason Kraftcheck
00030  */
00031 
00032 #include "Mesquite.hpp"
00033 #include "InvTransBarrier.hpp"
00034 #include "MsqMatrix.hpp"
00035 #include "MsqError.hpp"
00036 
00037 namespace MBMesquite
00038 {
00039 
00040 std::string InvTransBarrier::get_name() const
00041 {
00042     return "InvTransBarrier";
00043 }
00044 
00045 InvTransBarrier::~InvTransBarrier() {}
00046 
00047 bool InvTransBarrier::evaluate( const MsqMatrix< 2, 2 >& T, double& result, MsqError& err )
00048 {
00049     double tau = det( T );
00050     if( invalid_determinant( tau ) )
00051     {
00052         MSQ_SETERR( err )( barrier_violated_msg, MsqError::BARRIER_VIOLATED );
00053         return false;
00054     }
00055     MsqMatrix< 2, 2 > Tp = transpose_adj( T );
00056     Tp *= 1.0 / tau;
00057     bool rval = metricPtr->evaluate( Tp, result, err );
00058     return !MSQ_CHKERR( err ) && rval;
00059 }
00060 
00061 bool InvTransBarrier::evaluate( const MsqMatrix< 3, 3 >& T, double& result, MsqError& err )
00062 {
00063     double tau = det( T );
00064     if( invalid_determinant( tau ) )
00065     {
00066         MSQ_SETERR( err )( barrier_violated_msg, MsqError::BARRIER_VIOLATED );
00067         return false;
00068     }
00069     MsqMatrix< 3, 3 > Tp = transpose_adj( T );
00070     Tp *= 1.0 / tau;
00071     bool rval = metricPtr->evaluate( Tp, result, err );
00072     return !MSQ_CHKERR( err ) && rval;
00073 }
00074 
00075 }  // namespace MBMesquite
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