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# Common/vtkQuadraticHexahedron.h

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    00001 /*=========================================================================
    00002
    00003   Program:   Visualization Toolkit
    00004   Module:    $RCSfile: vtkQuadraticHexahedron.h,v $
    00005   Language:  C++
    00006
    00007   Copyright (c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen
    00008   All rights reserved.
    00009   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
    00010
    00011      This software is distributed WITHOUT ANY WARRANTY; without even
    00012      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
    00013      PURPOSE.  See the above copyright notice for more information.
    00014
    00015 =========================================================================*/
    00050 #ifndef __vtkQuadraticHexahedron_h
    00051 #define __vtkQuadraticHexahedron_h
    00052
    00053 #include "vtkNonLinearCell.h"
    00054
    00055 class vtkPolyData;
    00056 class vtkQuadraticEdge;
    00057 class vtkQuadraticQuad;
    00058 class vtkHexahedron;
    00059
    00060 class VTK_COMMON_EXPORT vtkQuadraticHexahedron : public vtkNonLinearCell
    00061 {
    00062 public:
    00063   static vtkQuadraticHexahedron *New();
    00064   vtkTypeRevisionMacro(vtkQuadraticHexahedron,vtkNonLinearCell);
    00065
    00067
    00069   int GetCellType() {return VTK_QUADRATIC_HEXAHEDRON;}
    00070   int GetCellDimension() {return 3;}
    00071   int GetNumberOfEdges() {return 12;}
    00072   int GetNumberOfFaces() {return 6;}
    00073   vtkCell *GetEdge(int);
    00074   vtkCell *GetFace(int);
    00076
    00077   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
    00078   void Contour(float value, vtkDataArray *cellScalars,
    00079                vtkPointLocator *locator, vtkCellArray *verts,
    00080                vtkCellArray *lines, vtkCellArray *polys,
    00081                vtkPointData *inPd, vtkPointData *outPd,
    00082                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
    00083   int EvaluatePosition(float x[3], float* closestPoint,
    00084                        int& subId, float pcoords[3],
    00085                        float& dist2, float *weights);
    00086   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
    00087                         float *weights);
    00088   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
    00089   void Derivatives(int subId, float pcoords[3], float *values,
    00090                    int dim, float *derivs);
    00091
    00093
    00096   void Clip(float value, vtkDataArray *cellScalars,
    00097             vtkPointLocator *locator, vtkCellArray *tetras,
    00098             vtkPointData *inPd, vtkPointData *outPd,
    00099             vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
    00100             int insideOut);
    00102
    00104
    00106   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
    00107                         float x[3], float pcoords[3], int& subId);
    00109
    00110
    00112
    00113   static void InterpolationFunctions(float pcoords[3], float weights[3]);
    00114   static void InterpolationDerivs(float pcoords[3], float derivs[3]);
    00116
    00120   void JacobianInverse(float pcoords[3], double **inverse, float derivs[60]);
    00121
    00122 protected:
    00123   vtkQuadraticHexahedron();
    00124   ~vtkQuadraticHexahedron();
    00125
    00126   vtkQuadraticEdge *Edge;
    00127   vtkQuadraticQuad *Face;
    00128   vtkHexahedron    *Hex;
    00129   vtkPointData     *PointData;
    00130   vtkCellData      *CellData;
    00131   vtkFloatArray    *Scalars;
    00132
    00133   void Subdivide(vtkPointData *inPd, vtkCellData *inCd, vtkIdType cellId);
    00134
    00135 private:
    00136   vtkQuadraticHexahedron(const vtkQuadraticHexahedron&);  // Not implemented.
    00137   void operator=(const vtkQuadraticHexahedron&);  // Not implemented.
    00138 };
    00139
    00140 #endif
    00141
    00142