MOAB: Mesh Oriented datABase  (version 5.2.1)
LambdaConstant.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 LambdaConstant.hpp
00028  *  \brief
00029  *  \author Jason Kraftcheck
00030  */
00031 
00032 #ifndef MSQ_LAMBDA_CONSTANT_HPP
00033 #define MSQ_LAMBDA_CONSTANT_HPP
00034 
00035 #include "Mesquite.hpp"
00036 #include "TargetCalculator.hpp"
00037 
00038 namespace MBMesquite
00039 {
00040 
00041 /**\brief Scale a target matrix
00042  *
00043  * Use the specified target calculator to determine the shape and orientation
00044  * portions of the target matrix, but make the size component (lambda)
00045  * a constant.
00046  */
00047 class LambdaConstant : public TargetCalculator
00048 {
00049   public:
00050     /**
00051      *\param lambda Target size.
00052      *\param target Target calcualtor from which to obtain
00053      *               a target that will be scaled by lambda.
00054      */
00055     LambdaConstant( double lambda, TargetCalculator* target );
00056 
00057     ~LambdaConstant();
00058 
00059     bool get_3D_target( PatchData& pd, size_t element, Sample sample, MsqMatrix< 3, 3 >& W_out, MsqError& err );
00060 
00061     bool get_2D_target( PatchData& pd, size_t element, Sample sample, MsqMatrix< 2, 2 >& W_out, MsqError& err );
00062 
00063     bool get_surface_target( PatchData& pd, size_t element, Sample sample, MsqMatrix< 3, 2 >& W_out, MsqError& err );
00064 
00065     bool have_surface_orient() const
00066     {
00067         return mTarget->have_surface_orient();
00068     }
00069 
00070   private:
00071     double mLambda;
00072     TargetCalculator* mTarget;
00073 };
00074 
00075 }  // namespace MBMesquite
00076 
00077 #endif
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