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/* *****************************************************************
    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 StdDevTemplate.hpp
 *  \brief
 *  \author Jason Kraftcheck
 */

#ifndef MSQ_STD_DEV_TEMPLATE_HPP
#define MSQ_STD_DEV_TEMPLATE_HPP

#include "Mesquite.hpp"
#include "VarianceTemplate.hpp"

namespace MBMesquite
{

/**\brief standard deviation template
 *
 * This class implements an objective function that is the
 * standard deviation of the quality metric evalutations.
 */
class StdDevTemplate : public VarianceTemplate
{
  public:
    MESQUITE_EXPORT
    StdDevTemplate( QualityMetric* qm = 0 ) : VarianceTemplate( qm ) {}

    MESQUITE_EXPORT
    virtual ~StdDevTemplate() {}

    MESQUITE_EXPORT
    virtual bool evaluate( EvalType type, PatchData& pd, double& value_out, bool free, MsqError& err );<--- Function in derived class

    MESQUITE_EXPORT
    virtual bool evaluate_with_gradient( EvalType type,<--- Function in derived class
                                         PatchData& pd,
                                         double& value_out,
                                         std::vector< Vector3D >& grad_out,
                                         MsqError& err );

    MESQUITE_EXPORT
    virtual bool evaluate_with_Hessian_diagonal( EvalType type,<--- Function in derived class
                                                 PatchData& pd,
                                                 double& value_out,
                                                 std::vector< Vector3D >& grad_out,
                                                 std::vector< SymMatrix3D >& hess_diag_out,
                                                 MsqError& err );

    MESQUITE_EXPORT
    virtual ObjectiveFunction* clone() const;<--- Function in derived class
};

}  // namespace MBMesquite

#endif