linearconstraintbc.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 linearconstraintbc_h
#define linearconstraintbc_h
 
#include "activebc.h"
#include "floatarray.h"
#include "intarray.h"
#include "chartype.h"
#include "valuemodetype.h"
#include "dofmanager.h"
#include "error.h"
 
#include <memory>
 
#define _IFT_LinearConstraintBC_Name   "linearconstraintbc"


#define _IFT_LinearConstraintBC_weights "weights"
#define _IFT_LinearConstraintBC_weightsfuncs "weightsltf"
#define _IFT_LinearConstraintBC_rhs "rhs"
#define _IFT_LinearConstraintBC_rhsfuncs "rhsltf"
#define _IFT_LinearConstraintBC_dofmans "dofmans"
#define _IFT_LinearConstraintBC_dofs "dofs"
#define _IFT_LinearConstraintBC_lhstype "lhstype"
#define _IFT_LinearConstraintBC_rhstype "rhstype"

 
namespace oofem {
class OOFEM_EXPORT LinearConstraintBC : public ActiveBoundaryCondition
{
protected:
    FloatArray weights;
    IntArray weightsTf;
    double rhs;
    int rhsTf;
    IntArray dofmans;
    IntArray dofs;
    std :: unique_ptr< DofManager > md;
 
 
    // characteristicType of LHS and RHS contributions (this makes this bc trully general, as one can customize, to which
    // characteristic component the contibution will be assembled)
    IntArray lhsType;
    IntArray rhsType;
 
public:
    LinearConstraintBC(int n, Domain * d);
    virtual ~LinearConstraintBC();
 
    void initializeFrom(InputRecord &ir) override;
    const char *giveInputRecordName() const override { return _IFT_LinearConstraintBC_Name; }
    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 *eNorms=nullptr,
                        void*lock=nullptr) override;
 
    void giveLocationArrays(std :: vector< IntArray > &rows, std :: vector< IntArray > &cols,
                            CharType type, const UnknownNumberingScheme &r_s,
                            const UnknownNumberingScheme &c_s) override;
 
    int giveNumberOfInternalDofManagers() override { return 1; }
    DofManager *giveInternalDofManager(int i) override { return this->md.get(); }
 
    void saveContext(DataStream &stream, ContextMode mode) override;
    void restoreContext(DataStream &stream, ContextMode mode) override;
 
    const char *giveClassName() const override { return "LinearConstraintBC"; }
 
protected:
    void giveLocArray(const UnknownNumberingScheme &r_s,  IntArray &locr, int &lambdaeq);
};
} //end of oofem namespace
#endif // LinearConstraintBC_h