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

    Copyright 2006 Lawrence Livermore National Laboratory.  Under
    the terms of Contract B545069 with the University of Wisconsin --
    Madison, Lawrence Livermore National Laboratory 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

    (2006) [email protected]

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

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

#include "OFEvaluator.hpp"
#include "MsqError.hpp"
#include "ObjectiveFunction.hpp"

namespace MBMesquite
{

OFEvaluator::OFEvaluator( ObjectiveFunction* of ) : OF( of ), doBCD( false ) {}<--- Member variable 'OFEvaluator::tempType' is not initialized in the constructor.<--- Member variable 'OFEvaluator::firstType' is not initialized in the constructor.<--- Member variable 'OFEvaluator::updateType' is not initialized in the constructor.<--- Member variable 'OFEvaluator::currUpdateType' is not initialized in the constructor.

bool OFEvaluator::initialize( MeshDomainAssoc* mesh_and_domain,
                              const Settings* settings,
                              PatchSet* user_set,
                              MsqError& err )
{
    if( doBCD )
    {
        tempType   = ObjectiveFunction::TEMPORARY;
        firstType  = ObjectiveFunction::SAVE;
        updateType = ObjectiveFunction::UPDATE;
    }
    else
    {
        tempType = firstType = updateType = ObjectiveFunction::CALCULATE;
    }
    reset();

    if( !doBCD )  // Nash
        return true;

    if( !have_objective_function() )
    {
        MSQ_SETERR( err )
        ( "Cannot perform block coordinate descent algorithm"
          " without an ObjectiveFunction",
          MsqError::INVALID_STATE );
        return false;
    }

    bool result =
        get_objective_function()->initialize_block_coordinate_descent( mesh_and_domain, settings, user_set, err );
    return !MSQ_CHKERR( err ) && result;
}

void OFEvaluator::initialize_queue( MeshDomainAssoc* mesh_and_domain, const Settings* settings, MsqError& err )
{
    if( get_objective_function() ) get_objective_function()->initialize_queue( mesh_and_domain, settings, err );MSQ_ERRRTN( err );
}

bool OFEvaluator::reset()
{
    currUpdateType = firstType;
    return true;
}

bool OFEvaluator::update( PatchData& pd, double& value, MsqError& err )
{
    if( !have_objective_function() )
    {
        MSQ_SETERR( err )( "No ObjectiveFunction", MsqError::INVALID_STATE );
        return false;
    }
    bool b         = get_objective_function()->evaluate( currUpdateType, pd, value, OF_FREE_EVALS_ONLY, err );
    currUpdateType = updateType;
    return !MSQ_CHKERR( err ) && b;
}

bool OFEvaluator::update( PatchData& pd, double& value, std::vector< Vector3D >& grad, MsqError& err )
{
    if( !have_objective_function() )
    {
        MSQ_SETERR( err )( "No ObjectiveFunction", MsqError::INVALID_STATE );
        return false;
    }
    bool b         = get_objective_function()->evaluate_with_gradient( currUpdateType, pd, value, grad, err );
    currUpdateType = updateType;
    return !MSQ_CHKERR( err ) && b;
}

bool OFEvaluator::update( PatchData& pd,
                          double& value,
                          std::vector< Vector3D >& grad,
                          std::vector< SymMatrix3D >& hess_diag,
                          MsqError& err )
{
    if( !have_objective_function() )
    {
        MSQ_SETERR( err )( "No ObjectiveFunction", MsqError::INVALID_STATE );
        return false;
    }
    bool b =
        get_objective_function()->evaluate_with_Hessian_diagonal( currUpdateType, pd, value, grad, hess_diag, err );
    currUpdateType = updateType;
    return !MSQ_CHKERR( err ) && b;
}

bool OFEvaluator::update( PatchData& pd,
                          double& value,
                          std::vector< Vector3D >& grad,
                          MsqHessian& Hessian,
                          MsqError& err )
{
    if( !have_objective_function() )
    {
        MSQ_SETERR( err )( "No ObjectiveFunction", MsqError::INVALID_STATE );
        return false;
    }
    bool b         = get_objective_function()->evaluate_with_Hessian( currUpdateType, pd, value, grad, Hessian, err );
    currUpdateType = updateType;
    return !MSQ_CHKERR( err ) && b;
}

bool OFEvaluator::evaluate( PatchData& pd, double& value, MsqError& err ) const
{
    if( !have_objective_function() )
    {
        MSQ_SETERR( err )( "No ObjectiveFunction", MsqError::INVALID_STATE );
        return false;
    }
    bool b = get_objective_function()->evaluate( tempType, pd, value, OF_FREE_EVALS_ONLY, err );
    return !MSQ_CHKERR( err ) && b;
}

bool OFEvaluator::evaluate( PatchData& pd, double& value, std::vector< Vector3D >& grad, MsqError& err ) const
{
    if( !have_objective_function() )
    {
        MSQ_SETERR( err )( "No ObjectiveFunction", MsqError::INVALID_STATE );
        return false;
    }
    bool b = get_objective_function()->evaluate_with_gradient( tempType, pd, value, grad, err );
    return !MSQ_CHKERR( err ) && b;
}

bool OFEvaluator::evaluate( PatchData& pd,
                            double& value,
                            std::vector< Vector3D >& grad,
                            std::vector< SymMatrix3D >& hess_diag,
                            MsqError& err ) const
{
    if( !have_objective_function() )
    {
        MSQ_SETERR( err )( "No ObjectiveFunction", MsqError::INVALID_STATE );
        return false;
    }
    bool b = get_objective_function()->evaluate_with_Hessian_diagonal( tempType, pd, value, grad, hess_diag, err );
    return !MSQ_CHKERR( err ) && b;
}

bool OFEvaluator::evaluate( PatchData& pd,
                            double& value,
                            std::vector< Vector3D >& grad,
                            MsqHessian& Hessian,
                            MsqError& err ) const
{
    if( !have_objective_function() )
    {
        MSQ_SETERR( err )( "No ObjectiveFunction", MsqError::INVALID_STATE );
        return false;
    }
    bool b = get_objective_function()->evaluate_with_Hessian( tempType, pd, value, grad, Hessian, err );
    return !MSQ_CHKERR( err ) && b;
}

}  // namespace MBMesquite