MOAB: Mesh Oriented datABase  (version 5.4.1)
TShapeSizeNB3.hpp
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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) [email protected]
00024 
00025   ***************************************************************** */
00026 
00027 /** \file TShapeSizeNB3.hpp
00028  *  \brief
00029  *  \author Jason Kraftcheck
00030  */
00031 
00032 #ifndef MSQ_T_SHAPE_SIZE_NB3_HPP
00033 #define MSQ_T_SHAPE_SIZE_NB3_HPP
00034 
00035 #include "Mesquite.hpp"
00036 #include "TMetricNonBarrier.hpp"
00037 
00038 namespace MBMesquite
00039 {
00040 
00041 /** 2D: \f$ |T - adj T^t|^2 + \gamma (\tau - 1)^2 = 2 |T|^2 - 4 \tau + \gamma (\tau - 1)^2 \f$
00042  *  3D: \f$ 2 |T|^3 - 3 \sqrt{3} \tau + \gamma (\tau - 1)^2 \f$
00043  */
00044 class TShapeSizeNB3 : public TMetricNonBarrier
00045 {
00046   public:
00047     TShapeSizeNB3( double gamma = 2.0 ) : mGamma( gamma ) {}
00048 
00049     MESQUITE_EXPORT virtual ~TShapeSizeNB3();
00050 
00051     MESQUITE_EXPORT virtual std::string get_name() const;
00052 
00053     MESQUITE_EXPORT virtual bool evaluate( const MsqMatrix< 2, 2 >& T, double& result, MsqError& err );
00054 
00055     MESQUITE_EXPORT virtual bool evaluate_with_grad( const MsqMatrix< 2, 2 >& T,
00056                                                      double& result,
00057                                                      MsqMatrix< 2, 2 >& deriv_wrt_T,
00058                                                      MsqError& err );
00059 
00060     MESQUITE_EXPORT virtual bool evaluate_with_hess( const MsqMatrix< 2, 2 >& T,
00061                                                      double& result,
00062                                                      MsqMatrix< 2, 2 >& deriv_wrt_T,
00063                                                      MsqMatrix< 2, 2 > second_wrt_T[3],
00064                                                      MsqError& err );
00065 
00066     MESQUITE_EXPORT virtual bool evaluate( const MsqMatrix< 3, 3 >& T, double& result, MsqError& err );
00067 
00068     MESQUITE_EXPORT virtual bool evaluate_with_grad( const MsqMatrix< 3, 3 >& T,
00069                                                      double& result,
00070                                                      MsqMatrix< 3, 3 >& deriv_wrt_T,
00071                                                      MsqError& err );
00072 
00073     MESQUITE_EXPORT virtual bool evaluate_with_hess( const MsqMatrix< 3, 3 >& T,
00074                                                      double& result,
00075                                                      MsqMatrix< 3, 3 >& deriv_wrt_T,
00076                                                      MsqMatrix< 3, 3 > second_wrt_T[6],
00077                                                      MsqError& err );
00078 
00079   private:
00080     double mGamma;
00081 };
00082 
00083 }  // namespace MBMesquite
00084 
00085 #endif
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