HexaAffin.h

// =======================================================================
// @(#)HexaAffin.h        1.3 02/22/00
//
// Class:      THexaAffin
//
// Purpose:    affin reference transformations for Hexahedron
//
// Author:     Daniel Quoos  
//
// History:    08.07.97 start implementation
// 
// =======================================================================

#ifndef __HEXAAFFIN__
#define __HEXAAFFIN__

#include <Enumerations.h>
#include <RefTrans3D.h>

class THexaAffin : public TRefTrans3D
{
  protected:
    double x0, x1, x2, x3, x4, x5, x6, x7;

    double y0, y1, y2, y3, y4, y5, y6, y7;

    double z0, z1, z2, z3, z4, z5, z6, z7;

    double xc0, xc1, xc2, xc3;

    double yc0, yc1, yc2, yc3;

    double zc0, zc1, zc2, zc3;

    double detjk;

    double rec_detjk;

  public:
    THexaAffin();

    void GetOrigFromRef(double eta, double xi, double zeta, double &x, double &y, double &z);

    void GetOrigFromRef(int N_Points, double *eta, double *xi, double *zeta, 
                        double *x, double *y, double *z, double *absdetjk);

    void GetOrigFromRef(double *ref, double *orig);

    void GetRefFromOrig(double x, double y, double z, double &eta, double &xi, double &zeta);

    void GetRefFromOrig(double *orig, double *ref);

    void GetOrigValues(BaseFunct3D BaseFunct,
                       int N_Points, double *xi, double *eta, double *zeta,
                       int N_Functs, QuadFormula3D HexaFormula);

    void GetOrigValues(int N_Sets, BaseFunct3D *BaseFunct,
                       int N_Points, double *xi, double *eta, double *zeta,
                       QuadFormula3D HexaFormula,
                       bool *Needs2ndDer);

    void GetOrigValues(double xi, double eta, double zeta, int N_BaseFunct,
                double *uref, double *uxiref, double *uetaref, double *uzetaref,
                double *uorig, double *uxorig, double *uyorig, double *uzorig, 
                int _BaseVectDim = 1);

    void SetCell(TBaseCell * cell);

    void GetOuterNormal(int j, double s, double t,
                        double &n1, double &n2, double &n3);

    void GetTangentVectors(int j, double p1, double p2,
        double &t11, double &t12, double &t13,
        double &t21, double &t22, double &t23);
    
    void PiolaMapOrigFromRef(int N_Functs, double *refD000, double *origD000);
};

#endif