MOAB: Mesh Oriented datABase  (version 5.2.1)
TPower2.cpp
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00001 /* *****************************************************************
00002     MESQUITE -- The Mesh Quality Improvement Toolkit
00003 
00004     Copyright 2009 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     (2009) kraftche@cae.wisc.edu
00024 
00025   ***************************************************************** */
00026 
00027 /** \file TPower2.cpp
00028  *  \brief
00029  *  \author Jason Kraftcheck
00030  */
00031 
00032 #include "Mesquite.hpp"
00033 #include "TMetricBarrier.hpp"
00034 #include "TPower2.hpp"
00035 #include "MsqMatrix.hpp"
00036 #include "TMPDerivs.hpp"
00037 #include "MsqError.hpp"
00038 #include "TMPCommon.hpp"
00039 
00040 namespace MBMesquite
00041 {
00042 
00043 std::string TPower2::get_name() const
00044 {
00045     return "sqr(" + mMetric->get_name() + ')';
00046 }
00047 
00048 TPower2::~TPower2() {}
00049 
00050 template < unsigned DIM >
00051 inline bool TPower2::eval( const MsqMatrix< DIM, DIM >& T, double& result, MsqError& err )
00052 {
00053     bool rval = mMetric->evaluate( T, result, err );
00054     MSQ_ERRZERO( err );
00055     result *= result;
00056     return rval;
00057 }
00058 
00059 template < unsigned DIM >
00060 inline bool TPower2::grad( const MsqMatrix< DIM, DIM >& T, double& result, MsqMatrix< DIM, DIM >& deriv_wrt_T,
00061                            MsqError& err )
00062 {
00063     bool rval = mMetric->evaluate_with_grad( T, result, deriv_wrt_T, err );
00064     MSQ_ERRZERO( err );
00065     deriv_wrt_T *= 2 * result;
00066     result *= result;
00067     return rval;
00068 }
00069 
00070 template < unsigned DIM >
00071 inline bool TPower2::hess( const MsqMatrix< DIM, DIM >& T, double& result, MsqMatrix< DIM, DIM >& deriv_wrt_T,
00072                            MsqMatrix< DIM, DIM >* second_wrt_T, MsqError& err )
00073 {
00074     bool rval = mMetric->evaluate_with_hess( T, result, deriv_wrt_T, second_wrt_T, err );  //
00075     MSQ_ERRZERO( err );
00076     hess_scale( second_wrt_T, 2 * result );
00077     pluseq_scaled_outer_product( second_wrt_T, 2.0, deriv_wrt_T );
00078     deriv_wrt_T *= 2 * result;
00079     result *= result;
00080     return rval;
00081 }
00082 
00083 TMP_T_TEMPL_IMPL_COMMON_ERR( TPower2 )
00084 
00085 }  // namespace MBMesquite
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