prescribedmean.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 PRESCRIBEDMEAN_H
#define PRESCRIBEDMEAN_H
 
#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <memory>
 
#include "activebc.h"
#include "node.h"
#include "boundaryload.h"
 
namespace oofem
{


#define _IFT_PrescribedMean_Name "prescribedmean"
#define _IFT_PrescribedMean_DofID "dofid"
#define _IFT_PrescribedMean_Mean "mean"
#define _IFT_PrescribedMean_Edge "edge"

 
class OOFEM_EXPORT PrescribedMean : public ActiveBoundaryCondition
{
private:
    std::unique_ptr<Node> lambdaDman;
 
    double c;
 
    static double domainSize;
 
    int dofid;
 
    void computeDomainSize();
 
    bool elementEdges;
 
    IntArray elements;
    IntArray sides;
    IntArray lambdaIDs;
 
public:
    PrescribedMean(int n, Domain * d) : ActiveBoundaryCondition(n, d), lambdaDman(std::make_unique<Node>(0, this->domain) ) {}
    virtual ~PrescribedMean() {}
 
    void initializeFrom(InputRecord &ir) override;
 
    void assemble(SparseMtrx &answer, TimeStep *tStep, CharType type,
                  const UnknownNumberingScheme &r_s, const UnknownNumberingScheme &c_s, double scale = 1.0, void* lock=nullptr) override;
 
    void assembleVector(FloatArray &answer, TimeStep *tStep,
                        CharType type, ValueModeType mode,
                        const UnknownNumberingScheme &s, FloatArray *eNorm=nullptr, void* lock=nullptr) override;
 
    void giveInternalForcesVector(FloatArray &answer, TimeStep *tStep,
                                  CharType type, ValueModeType mode,
                                  const UnknownNumberingScheme &s, FloatArray *eNorm=nullptr, 
                                  void* lock=nullptr);
 
    void giveExternalForcesVector(FloatArray &answer, TimeStep *tStep,
                                  CharType type, ValueModeType mode,
                                  const UnknownNumberingScheme &s,
                                  void* lock=nullptr);
 
    int giveNumberOfInternalDofManagers() override { return 1; }
 
    DofManager *giveInternalDofManager(int i) override { return lambdaDman.get(); }
 
    const char *giveClassName() const override { return "PrescribedMean"; }
    const char *giveInputRecordName() const override { return _IFT_PrescribedMean_Name; }
};
 
}
 
#endif // PRESCRIBEDMEAN_H