gausspoint.h

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/*
 *
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 *               ##   ##  ##   ##  ##      ##      ## ### ##
 *              ##   ##  ##   ##  ####    ####    ##  #  ##
 *             ##   ##  ##   ##  ##      ##      ##     ##
 *            ##   ##  ##   ##  ##      ##      ##     ##
 *            #####    #####   ##      ######  ##     ##
 *
 *
 *             OOFEM : Object Oriented Finite Element Code
 *
 *               Copyright (C) 1993 - 2013   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
 */

/*
 * The original idea for this class comes from
 * Dubois-Pelerin, Y.: "Object-Oriented  Finite Elements: Programming concepts and Implementation",
 * PhD Thesis, EPFL, Lausanne, 1992.
 */

#ifndef gausspoint_h
#define gausspoint_h

#include "oofemcfg.h"
#include "integrationrule.h"
#include "integrationpointstatus.h"
#include "element.h"
#include "floatarray.h"
#include "materialmode.h"

namespace oofem {
class Material;
class LayeredCrossSection;
class MicroplaneMaterial;
class FiberedCrossSection;
class CrossSection;
class IntegrationRule;

class OOFEM_EXPORT GaussPoint
{
private:
    int number;
    IntegrationRule *irule;
    FloatArray naturalCoordinates;
    FloatArray *subPatchCoordinates;
    FloatArray *globalCoordinates;
    double weight;
    MaterialMode materialMode;

protected:
    // layer and fibered material support
    std::vector< GaussPoint * >gaussPoints;
    IntegrationPointStatus *materialStatus;

public:
    GaussPoint(IntegrationRule * ir, int n, FloatArray iNaturalCoord, double w, MaterialMode mode);

    GaussPoint(IntegrationRule * ir, int n, double w, MaterialMode mode);

    virtual ~GaussPoint();

    double giveNaturalCoordinate(int i) const { return naturalCoordinates.at(i); }
    const FloatArray &giveNaturalCoordinates() { return naturalCoordinates; }
    void setNaturalCoordinates(const FloatArray &c) {
        naturalCoordinates = c;
    }

    const FloatArray &giveSubPatchCoordinates() {
        if ( subPatchCoordinates ) {
            return *subPatchCoordinates;
        } else {
            return naturalCoordinates;
        }
    }
    void setSubPatchCoordinates(const FloatArray &c)
    {
        if ( subPatchCoordinates ) {
            * subPatchCoordinates = c;
        } else {
            subPatchCoordinates = new FloatArray(c);
        }
    }

    inline const FloatArray &giveGlobalCoordinates() {
        if( globalCoordinates ) {
            return *globalCoordinates;
        }
        else {
            globalCoordinates = new FloatArray();
            this->giveElement()->computeGlobalCoordinates(*globalCoordinates, naturalCoordinates);
            return *globalCoordinates;
        }
    }

    void setGlobalCoordinates(const FloatArray &iCoord) {
        if( globalCoordinates ) {
            *globalCoordinates = iCoord;
        }
        else {
            globalCoordinates = new FloatArray(iCoord);
        }
    }

    virtual double giveWeight() { return weight; }
    void setWeight(double w) { weight = w; }
    int giveNumber() { return number; }
    IntegrationRule *giveIntegrationRule() { return irule; }
    Element *giveElement() { return irule->giveElement(); }

    MaterialMode giveMaterialMode() { return this->materialMode; }
    void setMaterialMode(MaterialMode newMode) { this->materialMode = newMode; }

    Material *giveMaterial() { return giveElement()->giveMaterial(); }

    CrossSection *giveCrossSection() { return giveElement()->giveCrossSection(); }

    IntegrationPointStatus *giveMaterialStatus() { return this->materialStatus; }

    IntegrationPointStatus *setMaterialStatus(IntegrationPointStatus *ptr, int n)
    {
        return this->setMaterialStatus(ptr);
    }

    IntegrationPointStatus *setMaterialStatus(IntegrationPointStatus *ptr)
    {
        if ( this->materialStatus != NULL ) {
            OOFEM_ERROR("status already exist");
        }
        this->materialStatus = ptr;
        return ptr;
    }
    GaussPoint *giveSlaveGaussPoint(int index);
   
    bool hasSlaveGaussPoint();
    size_t findFirstIndexOfSlaveGaussPoint(GaussPoint *gp);
    virtual void printOutputAt(FILE *file, TimeStep *tStep);
    virtual void updateYourself(TimeStep *tStep);

    // store & restore context functions
    /*
     * Stores receiver state to output stream, including associated material status.
     * Warning: Slaves are not saved, they must be saved by corresponding
     * cross section or material model, which creates these slaves.
     * This is because they may have special weights and coordinates,
     * and these are not saved into context file, because they remain the same
     * during whole solution (only variables which vary are stored into context).
     * Note: does not invoke FEMComponents saveContext, since this writes only
     * class id header, but typically due to large number of IPs,
     * this is avoided.
     * @exception throws an ContextIOERR exception if error encountered.
     */
    //contextIOResultType saveContext (FILE* stream, void *obj = NULL);
    /*
     * Restores receiver state to output stream, including associated material status.
     * Warning: Slaves are not restored, they must be restored by corresponding
     * cross section or material model, which creates these slaves.
     * This is because they may have special weights and coordinates,
     * and these are not saved into context file, because they remain the same
     * during whole solution (only variables which vary are stored into context).
     * Note: does not invoke FEMComponents restoreContext, since this writes only
     * class id header, but typically due to large number of IPs,
     * this is avoided.
     * @exception throws an ContextIOERR exception if error encountered.
     */
    //contextIOResultType restoreContext(FILE* stream, void *obj = NULL);

    virtual const char *giveClassName() const { return "GaussPoint"; }
    virtual IRResultType initializeFrom(InputRecord *ir) { return IRRT_OK; }

    friend class LayeredCrossSection;
    friend class MicroplaneMaterial;
    friend class FiberedCrossSection;
    //friend class Material;
    //friend class LayeredMaterial;
};

typedef GaussPoint IntegrationPoint;
} // end namespace oofem
#endif // gausspoint_h