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

    Copyright 2010 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

    (2010) [email protected]

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

/** \file TMetricNonBarrier.hpp
 *  \brief
 *  \author Boyd Tidwell
 */

#ifndef MSQ_T_METRIC_NON_BARRIER_HPP
#define MSQ_T_METRIC_NON_BARRIER_HPP

#include "Mesquite.hpp"
#include "TMetric.hpp"
#include <string>

namespace MBMesquite
{

class MsqError;
template < unsigned R, unsigned C >
class MsqMatrix;

class TMetricNonBarrier : public TMetric
{
  public:
    MESQUITE_EXPORT virtual ~TMetricNonBarrier();

    MESQUITE_EXPORT virtual std::string get_name() const<--- Function in derived class
    {
        return "TMetricNonBarrier";
    }

    static inline bool invalid_determinant( double d )
    {
        return d < 1e-12;
    }
};

class TMetricNonBarrier2D : public TMetric
{
  public:
    MESQUITE_EXPORT virtual ~TMetricNonBarrier2D();

    /**\brief Evaluate \f$\mu(T)\f$
     *
     * This method always returns an error for 2D-only metrics
     */
    MESQUITE_EXPORT virtual bool evaluate( const MsqMatrix< 3, 3 >& T, double& result, MsqError& err );<--- Function in derived class
};

class TMetricNonBarrier3D : public TMetric
{
  public:
    MESQUITE_EXPORT virtual ~TMetricNonBarrier3D();

    /**\brief Evaluate \f$\mu(T)\f$
     *
     * This method always returns an error for 3D-only metrics
     */
    MESQUITE_EXPORT virtual bool evaluate( const MsqMatrix< 2, 2 >& T, double& result, MsqError& err );<--- Function in derived class
};

}  // namespace MBMesquite

#endif