feinurbs.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 feinurbs_h
#define feinurbs_h
 
#include "feibspline.h"
#include "floatarray.h"
#include "floatmatrix.h"
#include "mathfem.h"


#define _IFT_NURBSInterpolation_weights "weights"
 
namespace oofem {
class ParamKey;
class OOFEM_EXPORT NURBSInterpolation : public BSplineInterpolation
{
protected:
    FloatArray weights;
    static ParamKey IPK_NURBSInterpolation_weights;
 
public:
    NURBSInterpolation(int nsd) : BSplineInterpolation(nsd) { }
 
    void initializeFrom(InputRecord &ir, ParameterManager&pm, int elnum, int priority) override;
    void postInitialize(ParameterManager&pm, int elnum) override;
 
    void evalN(FloatArray &answer, const FloatArray &lcoords, const FEICellGeometry &cellgeo) const override;
    double evaldNdx(FloatMatrix &answer, const FloatArray &lcoords, const FEICellGeometry &cellgeo) const override;
    void local2global(FloatArray &answer, const FloatArray &lcoords, const FEICellGeometry &cellgeo) const override;
    int global2local(FloatArray &answer, const FloatArray &lcoords, const FEICellGeometry &cellgeo) const override {
        OOFEM_ERROR("Not yet implemented.");
    }
    void giveJacobianMatrixAt(FloatMatrix &jacobianMatrix, const FloatArray &lcoords, const FEICellGeometry &cellgeo) const override;
 
    const char *giveClassName() const { return "NURBSInterpolation"; }
};
} // end namespace oofem
#endif // feinurbs_h