levelsetpcs.h

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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 levelsetpcs_h
#define levelsetpcs_h
 
#include "materialinterface.h"
#include "geotoolbox.h"
#include "interface.h"
 
#include <vector>


#define _IFT_LevelSetPCS_levelSetValues "levelset"
#define _IFT_LevelSetPCS_refmatpoly_x "refmatpolyx"
#define _IFT_LevelSetPCS_refmatpoly_y "refmatpolyy"
#define _IFT_LevelSetPCS_reinit_dt "rdt"
#define _IFT_LevelSetPCS_reinit_err "rerr"
#define _IFT_LevelSetPCS_reinit_alg "lsra"
#define _IFT_LevelSetPCS_nsd "nsd"
#define _IFT_LevelSetPCS_ci1 "ci1"
#define _IFT_LevelSetPCS_ci2 "ci2"
 
 
namespace oofem {
#define LevelSetPCS_CACHE_ELEMENT_VOF 0
 
class LevelSetPCS;

class LevelSetPCSElementInterface : public Interface
{
public:
    LevelSetPCSElementInterface() { }



    virtual double LS_PCS_computeF(LevelSetPCS *ls, TimeStep *tStep) = 0;

    virtual void LS_PCS_computedN(FloatMatrix &answer) = 0;
    virtual double LS_PCS_computeVolume() = 0;

    virtual double LS_PCS_computeS(LevelSetPCS *ls, TimeStep *tStep) = 0;

    virtual void LS_PCS_computeVOFFractions(FloatArray &answer, FloatArray &fi) = 0;
};

class LevelSetPCS : public MaterialInterface
{
protected:
    FloatArray levelSetValues, previousLevelSetValues;
    enum PCSEqType { PCS_levelSetUpdate, PCS_levelSetRedistance };
    Polygon initialRefMatVol;
    bool initialRefMatFlag;
    int ci1=1, ci2=2;

    int reinit_alg=1;
    double reinit_dt=0.0;
    bool reinit_dt_flag;
    double reinit_err=1.e-6;
    int nsd=2;
    long int levelSetVersion;
 
#ifdef LevelSetPCS_CACHE_ELEMENT_VOF
    std :: vector< FloatArray >elemVof;
    long int elemVofLevelSetVersion=0;
#endif
 
public:
    LevelSetPCS(int n, Domain * d) : MaterialInterface(n, d) {
        initialRefMatFlag = false;
        reinit_dt_flag = false;
        levelSetVersion = 0;
    }
 
    void initialize() override;
    void updatePosition(TimeStep *tStep) override;
    void updateYourself(TimeStep *tStep) override { previousLevelSetValues = levelSetValues; }
    double computeCriticalTimeStep(TimeStep *tStep) override;
    void initializeFrom(InputRecord &ir) override;
    void giveInputRecord(DynamicInputRecord &input) override;
    void reinitialization(TimeStep *tStep);
 
    void giveMaterialMixtureAt(FloatArray &answer, FloatArray &position) override;
    void giveElementMaterialMixture(FloatArray &answer, int ielem) override;
    double giveNodalScalarRepresentation(int i) override { return levelSetValues.at(i); }

    double giveLevelSetDofManValue(int i) { return levelSetValues.at(i); }
 
    // identification
    const char *giveClassName() const override { return "LevelSetPCS"; }
 
    void saveContext(DataStream &stream, ContextMode mode) override;
    void restoreContext(DataStream &stream, ContextMode mode) override;
 
protected:
    void pcs_stage1(FloatArray &ls, FloatArray &fs, FloatArray &w, TimeStep *tStep, PCSEqType t);
    double evalElemFContribution(PCSEqType t, int ie, TimeStep *tStep);
    double evalElemfContribution(PCSEqType t, int ie, TimeStep *tStep);

    void redistance(TimeStep *tStep);


    void FMMReinitialization(FloatArray &ls);
};
} // end namespace oofem
#endif // levelsetpcs_h