eigenvaluedynamic.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 eigenvaluedynamic_h
#define eigenvaluedynamic_h
 
#include "engngm.h"
#include "sparsegeneigenvalsystemnm.h"
#include "sparsemtrx.h"
#include "floatmatrix.h"
#include "floatarray.h"
#include "geneigvalsolvertype.h"
#include "eigenvectorprimaryfield.h"


#define _IFT_EigenValueDynamic_Name "eigenvaluedynamic"
#define _IFT_EigenValueDynamic_nroot "nroot"
#define _IFT_EigenValueDynamic_rtolv "rtolv"
#define _IFT_EigenValueDynamic_stype "stype"
 
namespace oofem {
class EigenValueDynamic : public EngngModel
{
private:
    std :: unique_ptr< EigenVectorPrimaryField > field;
    FloatArray eigVal;
    int activeVector;
    // int restoreFlag;
    SparseMtrxType sparseMtrxType;
    int numberOfRequiredEigenValues;
    double rtolv;
    std :: unique_ptr< SparseGeneralEigenValueSystemNM > nMethod;
    GenEigvalSolverType solverType;
 
public:
    EigenValueDynamic(int i, EngngModel *master=nullptr);
    virtual ~EigenValueDynamic() { }
 
    void solveYourself() override;
    void doStepOutput(TimeStep *tStep) override;
    void printOutputAt(FILE *file, TimeStep *tStep) override;
    void updateYourself(TimeStep *tStep) override;
 
    int giveUnknownDictHashIndx(ValueModeType mode, TimeStep *tStep) override;
    double giveUnknownComponent(ValueModeType type, TimeStep *tStep, Domain *d, Dof *dof) override;
    bool newDofHandling() override { return true; }
    void initializeFrom(InputRecord &ir) override;
    void saveContext(DataStream &stream, ContextMode mode) override;
    void restoreContext(DataStream &stream, ContextMode mode) override;
    TimeStep *giveNextStep() override;
    NumericalMethod *giveNumericalMethod(MetaStep *mStep) override;
    void setActiveVector(int i) override;
 
    double giveEigenValue(int eigNum) override { return eigVal.at(eigNum); }
 
    const char *giveClassName() const override { return "EigenValueDynamic"; }
};
} // end namespace oofem
#endif // eigenvaluedynamic_h