MOAB: Mesh Oriented datABase  (version 5.2.1)
LambdaTarget.hpp
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00001 /* *****************************************************************
00002     MESQUITE -- The Mesh Quality Improvement Toolkit
00003 
00004     Copyright 2007 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 LambdaTarget.hpp
00028  *  \brief
00029  *  \author Jason Kraftcheck
00030  */
00031 
00032 #ifndef MSQ_LAMBDA_TARGET_HPP
00033 #define MSQ_LAMBDA_TARGET_HPP
00034 
00035 #include "Mesquite.hpp"
00036 #include "TargetCalculator.hpp"
00037 
00038 namespace MBMesquite
00039 {
00040 
00041 /**\brief Scale a target matrix by the size of another.
00042  *
00043  * Combine two target matrices by extracting a scalar representation of
00044  * the size (lambda) of one and use that value to scale the other.  The
00045  * expected use of this target calculator is to preserve the size of
00046  * a reference mesh while targeting ideal elements for shape.
00047  */
00048 class LambdaTarget : public TargetCalculator
00049 {
00050   public:
00051     /**
00052      *\param lambda_source Target calculator from which to extract
00053      *                     scaling factor (lambda).
00054      *\param composite_source Target calcualtor from which to obtain
00055      *                     a target that will be scaled by lambda.
00056      */
00057     LambdaTarget( TargetCalculator* lambda_source, TargetCalculator* composite_source );
00058 
00059     ~LambdaTarget();
00060 
00061     bool get_3D_target( PatchData& pd, size_t element, Sample sample, MsqMatrix< 3, 3 >& W_out, MsqError& err );
00062 
00063     bool get_2D_target( PatchData& pd, size_t element, Sample sample, MsqMatrix< 2, 2 >& W_out, MsqError& err );
00064 
00065     bool get_surface_target( PatchData& pd, size_t element, Sample sample, MsqMatrix< 3, 2 >& W_out, MsqError& err );
00066 
00067     bool have_surface_orient() const
00068     {
00069         return compositeSource->have_surface_orient();
00070     }
00071 
00072   private:
00073     TargetCalculator* lambdaSource;
00074     TargetCalculator* compositeSource;
00075 };
00076 
00077 }  // namespace MBMesquite
00078 
00079 #endif
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