linearstatic.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 linearstatic_h
#define linearstatic_h
 
#include "sm/EngineeringModels/structengngmodel.h"
#include "sparselinsystemnm.h"
#include "sparsemtrxtype.h"
#include "unknownnumberingscheme.h"
 
#define _IFT_LinearStatic_Name "linearstatic"
 
namespace oofem {
class SparseMtrx;

class LinearStatic : public StructuralEngngModel
{
protected:
    std :: unique_ptr< SparseMtrx > stiffnessMatrix;
    FloatArray loadVector;
    FloatArray displacementVector;
 
    LinSystSolverType solverType;
    SparseMtrxType sparseMtrxType;
    std :: unique_ptr< SparseLinearSystemNM > nMethod;
 
    int initFlag;
    EModelDefaultEquationNumbering equationNumbering;
 
public:
    LinearStatic(int i, EngngModel *master = nullptr);
    virtual ~LinearStatic();
 
    void solveYourself() override;
    void solveYourselfAt(TimeStep *tStep) override;
 
    double giveUnknownComponent(ValueModeType type, TimeStep *tStep, Domain *d, Dof *dof) override;
    void saveContext(DataStream &stream, ContextMode mode) override;
    void restoreContext(DataStream &stream, ContextMode mode) override;
 
    void updateDomainLinks() override;
 
    TimeStep *giveNextStep() override;
    NumericalMethod *giveNumericalMethod(MetaStep *mStep) override;
 
    void initializeFrom(InputRecord &ir) override;
 
    virtual UnknownNumberingScheme &giveEquationNumbering() { return equationNumbering; }
 
    // identification
    virtual const char *giveInputRecordName() const { return _IFT_LinearStatic_Name; }
    const char *giveClassName() const override { return "LinearStatic"; }
    fMode giveFormulation() override { return TL; }
 
    int estimateMaxPackSize(IntArray &commMap, DataStream &buff, int packUnpackType) override;
};
} // end namespace oofem
#endif // linearstatic_h