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

    Copyright 2004 Sandia Corporation and Argonne National
    Laboratory.  Under the terms of Contract DE-AC04-94AL85000
    with Sandia Corporation, the U.S. Government retains certain
    rights in 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

    [email protected], [email protected], [email protected],
    [email protected], [email protected], [email protected]

  ***************************************************************** */
// -*- Mode : c++; tab-width: 3; c-tab-always-indent: t; indent-tabs-mode: nil; c-basic-offset: 3
// -*-

/*! \file CompositeOFMultiply.hpp

Header file for the MBMesquite:: CompositeOFMultiply class

  \author Michael Brewer
  \date   2002-05-23
 */

#ifndef CompositeOFMultiply_hpp
#define CompositeOFMultiply_hpp

#include "Mesquite.hpp"
#include "ObjectiveFunction.hpp"
#include "MsqHessian.hpp"

namespace MBMesquite
{
/*!\class CompositeOFMultiply
    \brief Multiplies two ObjectiveFunction values together.
  */
class MsqMeshEntity;
class PatchData;
class CompositeOFMultiply : public ObjectiveFunction
{
  public:
    MESQUITE_EXPORT
    CompositeOFMultiply( ObjectiveFunction*, ObjectiveFunction*, bool delete_OFs = false );
    MESQUITE_EXPORT
    virtual ~CompositeOFMultiply();

    //!\brief Called at start of instruction queue processing
    //!
    //! Do any preliminary global initialization, consistency checking,
    //! etc.
    MESQUITE_EXPORT
    virtual void initialize_queue( MeshDomainAssoc* mesh_and_domain, const Settings* settings, MsqError& err );<--- Function in derived class

    MESQUITE_EXPORT
    virtual bool initialize_block_coordinate_descent( MeshDomainAssoc* mesh_and_domain,<--- Function in derived class
                                                      const Settings* settings,
                                                      PatchSet* user_set,
                                                      MsqError& err );

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

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

    MESQUITE_EXPORT
    virtual void clear();<--- Function in derived class

    MESQUITE_EXPORT
    virtual int min_patch_layers() const;<--- Function in derived class

  private:
    /** Temporary storage for gradient */
    mutable std::vector< Vector3D > mGradient;
    /** Temporary storage for hessian diagonal */
    mutable std::vector< SymMatrix3D > mDiagonal;

    ObjectiveFunction* objFunc1;
    ObjectiveFunction* objFunc2;
    bool deleteObjFuncs;
};
}  // namespace MBMesquite
#endif  //  CompositeOFMultiply_hpp