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103 | /* *****************************************************************
MESQUITE -- The Mesh Quality Improvement Toolkit
Copyright 2006 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
(2006) [email protected]
***************************************************************** */
/** \file AWMetricBarrier.hpp
* \brief
* \author Boyd Tidwell
*/
#ifndef MSQ_AW_METRIC_BARRIER_HPP
#define MSQ_AW_METRIC_BARRIER_HPP
#include "Mesquite.hpp"
#include "AWMetric.hpp"
#include <string>
namespace MBMesquite
{
static const std::string& barrier_violated_msg_aw =
" Barrier of barrier metric has been violated due to negative volume.\n \
Hint: If your initial mesh is tangled, you must use a non-Barrier metric.\n \
If a Barrier metric is used, you can only use untangled initial meshes.\n";
class MsqError;
template < unsigned R, unsigned C >
class MsqMatrix;
/**\brief A metric for comparing a matrix A with a target matrix W
*
* Implement a scalar function \f$\mu(A,W)\f$ where A and W are 2x2 or 3x3 matrices.
*/
class AWMetricBarrier : public AWMetric
{
public:
MESQUITE_EXPORT virtual ~AWMetricBarrier();
MESQUITE_EXPORT virtual std::string get_name() const<--- Function in derived class
{
return "AWMetricBarrier";
}
static inline bool invalid_determinant( double d )
{
return d < 1e-12;
}
};
class AWMetricBarrier2D : public AWMetricBarrier
{
public:
MESQUITE_EXPORT virtual ~AWMetricBarrier2D();
/**\brief Evaluate \f$\mu(A,W)\f$
*
* This method always returns an error for 2D-only metrics
*/
MESQUITE_EXPORT virtual bool evaluate( const MsqMatrix< 3, 3 >& A,<--- Function in derived class
const MsqMatrix< 3, 3 >& W,
double& result,
MsqError& err );
};
class AWMetricBarrier3D : public AWMetricBarrier
{
public:
MESQUITE_EXPORT virtual ~AWMetricBarrier3D();
/**\brief Evaluate \f$\mu(A,W)\f$
*
* This method always returns an error for 3D-only metrics
*/
MESQUITE_EXPORT virtual bool evaluate( const MsqMatrix< 2, 2 >& A,<--- Function in derived class
const MsqMatrix< 2, 2 >& W,
double& result,
MsqError& err );
};
} // namespace MBMesquite
#endif
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