MOAB: Mesh Oriented datABase  (version 5.4.1)
TShapeSize3DNB1.hpp
Go to the documentation of this file.
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) [email protected]
00024 
00025   ***************************************************************** */
00026 
00027 /** \file TShapeSize3DNB1.hpp
00028  *  \brief
00029  *  \author Jason Kraftcheck
00030  */
00031 
00032 #ifndef MSQ_T_SHAPE_SIZE_3D_NB_1_HPP
00033 #define MSQ_T_SHAPE_SIZE_3D_NB_1_HPP
00034 
00035 #include "Mesquite.hpp"
00036 #include "TMetricNonBarrier.hpp"
00037 
00038 namespace MBMesquite
00039 {
00040 
00041 /**\brief \f$ |T|^3 - 3 \sqrt{3} \tau + \gamma (\tau - 1)^2 \f$
00042  *
00043  * A target metric for volume elements that optimizes
00044  * element shape and size
00045  */
00046 class TShapeSize3DNB1 : public TMetricNonBarrier3D
00047 {
00048   private:
00049     double mGamma;
00050 
00051   public:
00052     TShapeSize3DNB1( double gamma = 2.0 ) : mGamma( gamma ) {}
00053 
00054     MESQUITE_EXPORT virtual ~TShapeSize3DNB1();
00055 
00056     MESQUITE_EXPORT virtual std::string get_name() const;
00057 
00058     MESQUITE_EXPORT virtual bool evaluate( const MsqMatrix< 3, 3 >& T, double& result, MsqError& err );
00059 
00060     MESQUITE_EXPORT virtual bool evaluate_with_grad( const MsqMatrix< 3, 3 >& T,
00061                                                      double& result,
00062                                                      MsqMatrix< 3, 3 >& deriv_wrt_T,
00063                                                      MsqError& err );
00064 
00065     MESQUITE_EXPORT virtual bool evaluate_with_hess( const MsqMatrix< 3, 3 >& T,
00066                                                      double& result,
00067                                                      MsqMatrix< 3, 3 >& deriv_wrt_T,
00068                                                      MsqMatrix< 3, 3 > second_wrt_T[6],
00069                                                      MsqError& err );
00070 };
00071 
00072 }  // namespace MBMesquite
00073 
00074 #endif
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Defines