LambdaConstant.cpp

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/* *****************************************************************
    MESQUITE -- The Mesh Quality Improvement Toolkit

    Copyright 2009 Sandia National Laboratories.  Developed at the
    University of Wisconsin--Madison under SNL contract number
    624796.  The U.S. Government and the University of Wisconsin
    retain certain rights to this software.

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License
    (lgpl.txt) along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    (2009) [email protected]

  ***************************************************************** */

/** \file LambdaConstant.cpp
 *  \brief
 *  \author Jason Kraftcheck
 */

#include "Mesquite.hpp"
#include "LambdaConstant.hpp"
#include "MsqMatrix.hpp"
#include "MsqError.hpp"

namespace MBMesquite
{

LambdaConstant::LambdaConstant( double lambda, TargetCalculator* W ) : mLambda( lambda ), mTarget( W ) {}

LambdaConstant::~LambdaConstant() {}

bool LambdaConstant::get_3D_target( PatchData& pd,
                                    size_t element,
                                    Sample sample,
                                    MsqMatrix< 3, 3 >& W_out,
                                    MsqError& err )
{
    bool valid = mTarget->get_3D_target( pd, element, sample, W_out, err );
    if( MSQ_CHKERR( err ) || !valid ) return false;
    double lambda = this->size( W_out );
    if( lambda < 1e-50 ) return false;
    W_out *= mLambda / lambda;
    return true;
}

bool LambdaConstant::get_surface_target( PatchData& pd,
                                         size_t element,
                                         Sample sample,
                                         MsqMatrix< 3, 2 >& W_out,
                                         MsqError& err )
{
    bool valid = mTarget->get_surface_target( pd, element, sample, W_out, err );
    if( MSQ_CHKERR( err ) || !valid ) return false;
    double lambda = this->size( W_out );
    if( lambda < 1e-50 ) return false;
    W_out *= mLambda / lambda;
    return true;
}

bool LambdaConstant::get_2D_target( PatchData& pd,
                                    size_t element,
                                    Sample sample,
                                    MsqMatrix< 2, 2 >& W_out,
                                    MsqError& err )
{
    bool valid = mTarget->get_2D_target( pd, element, sample, W_out, err );
    if( MSQ_CHKERR( err ) || !valid ) return false;
    double lambda = this->size( W_out );
    if( lambda < 1e-50 ) return false;
    W_out *= mLambda / lambda;
    return true;
}

}  // namespace MBMesquite