MOAB: Mesh Oriented datABase  (version 5.2.1)
AWSizeB1.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     (2010) kraftche@cae.wisc.edu
00024 
00025   ***************************************************************** */
00026 
00027 /** \file AWSizeB1.cpp
00028  *  \brief
00029  *  \author Jason Kraftcheck
00030  */
00031 
00032 #include "Mesquite.hpp"
00033 #include "AWSizeB1.hpp"
00034 #include "MsqMatrix.hpp"
00035 #include "MsqError.hpp"
00036 #include "TMPDerivs.hpp"
00037 #include "TMPCommon.hpp"
00038 
00039 namespace MBMesquite
00040 {
00041 
00042 std::string AWSizeB1::get_name() const
00043 {
00044     return "AWSizeB1";
00045 }
00046 
00047 AWSizeB1::~AWSizeB1() {}
00048 
00049 bool AWSizeB1::evaluate( const MsqMatrix< 2, 2 >& A, const MsqMatrix< 2, 2 >& W, double& result, MsqError& err )
00050 {
00051     const double alpha = det( A );
00052     const double omega = det( W );
00053     const double prod  = alpha * omega;
00054     if( AWMetric::invalid_determinant( prod ) )
00055     {
00056         MSQ_SETERR( err )( barrier_violated_msg_aw, MsqError::BARRIER_VIOLATED );
00057         return false;
00058     }
00059 
00060     result = ( alpha - omega );
00061     result *= result;
00062     result /= prod;
00063     return true;
00064 }
00065 
00066 bool AWSizeB1::evaluate_with_grad( const MsqMatrix< 2, 2 >& A, const MsqMatrix< 2, 2 >& W, double& result,
00067                                    MsqMatrix< 2, 2 >& deriv_wrt_A, MsqError& err )
00068 {
00069     const double alpha = det( A );
00070     const double omega = det( W );
00071     const double prod  = alpha * omega;
00072     if( AWMetric::invalid_determinant( prod ) )
00073     {
00074         MSQ_SETERR( err )( barrier_violated_msg_aw, MsqError::BARRIER_VIOLATED );
00075         return false;
00076     }
00077 
00078     result = ( alpha - omega );
00079     result *= result;
00080     result /= prod;
00081     deriv_wrt_A = transpose_adj( A );
00082     deriv_wrt_A *= ( alpha * alpha - omega * omega ) / ( alpha * prod );
00083     return true;
00084 }
00085 
00086 bool AWSizeB1::evaluate( const MsqMatrix< 3, 3 >& A, const MsqMatrix< 3, 3 >& W, double& result, MsqError& err )
00087 {
00088     const double alpha = det( A );
00089     const double omega = det( W );
00090     const double prod  = alpha * omega;
00091     if( AWMetric::invalid_determinant( prod ) )
00092     {
00093         MSQ_SETERR( err )( barrier_violated_msg_aw, MsqError::BARRIER_VIOLATED );
00094         return false;
00095     };
00096 
00097     result = ( alpha - omega );
00098     result *= result;
00099     result /= prod;
00100     return true;
00101 }
00102 
00103 bool AWSizeB1::evaluate_with_grad( const MsqMatrix< 3, 3 >& A, const MsqMatrix< 3, 3 >& W, double& result,
00104                                    MsqMatrix< 3, 3 >& deriv_wrt_A, MsqError& err )
00105 {
00106     const double alpha = det( A );
00107     const double omega = det( W );
00108     const double prod  = alpha * omega;
00109     if( AWMetric::invalid_determinant( prod ) )
00110     {
00111         MSQ_SETERR( err )( barrier_violated_msg_aw, MsqError::BARRIER_VIOLATED );
00112         return false;
00113     }
00114 
00115     result = ( alpha - omega );
00116     result *= result;
00117     result /= prod;
00118     deriv_wrt_A = transpose_adj( A );
00119     deriv_wrt_A *= ( alpha * alpha - omega * omega ) / ( alpha * prod );
00120     return true;
00121 }
00122 
00123 }  // namespace MBMesquite
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