mmaleastsquareprojection.h

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/*
 *
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 *               ##   ##  ##   ##  ##      ##      ## ### ##
 *              ##   ##  ##   ##  ####    ####    ##  #  ##
 *             ##   ##  ##   ##  ##      ##      ##     ##
 *            ##   ##  ##   ##  ##      ##      ##     ##
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 *
 *
 *             OOFEM : Object Oriented Finite Element Code
 *
 *               Copyright (C) 1993 - 2025   Borek Patzak
 *
 *
 *
 *       Czech Technical University, Faculty of Civil Engineering,
 *   Department of Structural Mechanics, 166 29 Prague, Czech Republic
 *
 *  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 program 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 along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
#ifndef mmaleastsquareprojection_h
#define mmaleastsquareprojection_h
 
#include "materialmappingalgorithm.h"
#include "interface.h"
 
#include <list>


#define _IFT_MMALeastSquareProjection_Name "leastsquare"
#define _IFT_MMALeastSquareProjection_statefilter "mmalsp_statefilter"
#define _IFT_MMALeastSquareProjection_regionfilter "mmalsp_regionfilter"
 
namespace oofem {
class Domain;
class Element;
class TimeStep;
class DynamicInputRecord;
 
enum MMALeastSquareProjectionPatchType { MMALSPPatchType_1dq, MMALSPPatchType_2dq };
/*
 * Defines, whether only the necessary number of closest points will be used
 * to fit a polynomial. If not defined, more points from gp neighborhood will
 * be used, based on element connectivity.
 */
//#define MMALSP_ONLY_CLOSEST_POINTS

class OOFEM_EXPORT MMALeastSquareProjection : public MaterialMappingAlgorithm
{
protected:
    int stateFilter;
    int regionFilter;
    std :: list< GaussPoint * >patchGPList;
    Domain *patchDomain;
    MMALeastSquareProjectionPatchType patchType;
public:
    MMALeastSquareProjection();
    virtual ~MMALeastSquareProjection();
 
    void __init(Domain *dold, IntArray &type, const FloatArray &coords, Set &sourceElemSet, TimeStep *tStep, bool iCohesiveZoneGP = false) override;
 
    void finish(TimeStep *tStep) override;
 
    int __mapVariable(FloatArray &answer, const FloatArray &coords, InternalStateType type, TimeStep *tStep) override;
 
    int mapStatus(MaterialStatus &oStatus) const override;
 
    void initializeFrom(InputRecord &ir) override;
    void giveInputRecord(DynamicInputRecord &input) override;
 
    const char *giveClassName() const override { return "MMALeastSquareProjectionPatchType"; }
    const char *giveInputRecordName() const { return _IFT_MMALeastSquareProjection_Name; }
 
protected:
    void computePolynomialTerms(FloatArray &P, const FloatArray &coords, MMALeastSquareProjectionPatchType type);
    int giveNumberOfUnknownPolynomialCoefficients(MMALeastSquareProjectionPatchType regType);
};
} // end namespace oofem
#endif // mmaleastsquareprojection_h