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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 =========================================================================*/
00040 #ifndef __vtkQuadraticHexahedron_h
00041 #define __vtkQuadraticHexahedron_h
00042 
00043 #include "vtkNonLinearCell.h"
00044 
00045 class vtkPolyData;
00046 class vtkQuadraticEdge;
00047 class vtkQuadraticQuad;
00048 class vtkHexahedron;
00049 
00050 class VTK_COMMON_EXPORT vtkQuadraticHexahedron : public vtkNonLinearCell
00051 {
00052 public:
00053   static vtkQuadraticHexahedron *New();
00054   vtkTypeRevisionMacro(vtkQuadraticHexahedron,vtkNonLinearCell);
00055 
00057 
00059   int GetCellType() {return VTK_QUADRATIC_HEXAHEDRON;}
00060   int GetCellDimension() {return 3;}
00061   int GetNumberOfEdges() {return 12;}
00062   int GetNumberOfFaces() {return 6;}
00063   vtkCell *GetEdge(int);
00064   vtkCell *GetFace(int);
00066 
00067   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00068   void Contour(float value, vtkDataArray *cellScalars, 
00069                vtkPointLocator *locator, vtkCellArray *verts, 
00070                vtkCellArray *lines, vtkCellArray *polys, 
00071                vtkPointData *inPd, vtkPointData *outPd,
00072                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00073   int EvaluatePosition(float x[3], float* closestPoint,
00074                        int& subId, float pcoords[3], 
00075                        float& dist2, float *weights);
00076   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00077                         float *weights);
00078   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00079   void Derivatives(int subId, float pcoords[3], float *values, 
00080                    int dim, float *derivs);
00081 
00083 
00086   void Clip(float value, vtkDataArray *cellScalars, 
00087             vtkPointLocator *locator, vtkCellArray *tetras,
00088             vtkPointData *inPd, vtkPointData *outPd,
00089             vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
00090             int insideOut);
00092 
00094 
00096   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00097                         float x[3], float pcoords[3], int& subId);
00099 
00100   
00102 
00103   static void InterpolationFunctions(float pcoords[3], float weights[3]);
00104   static void InterpolationDerivs(float pcoords[3], float derivs[3]);
00106 
00110   void JacobianInverse(float pcoords[3], double **inverse, float derivs[60]);
00111 
00112 protected:
00113   vtkQuadraticHexahedron();
00114   ~vtkQuadraticHexahedron();
00115 
00116   vtkQuadraticEdge *Edge;
00117   vtkQuadraticQuad *Face;
00118   vtkHexahedron    *Hex;
00119   vtkPointData     *PointData;
00120   vtkCellData      *CellData;
00121   vtkFloatArray    *Scalars;
00122   
00123   void Subdivide(vtkPointData *inPd, vtkCellData *inCd, vtkIdType cellId);
00124 
00125 private:
00126   vtkQuadraticHexahedron(const vtkQuadraticHexahedron&);  // Not implemented.
00127   void operator=(const vtkQuadraticHexahedron&);  // Not implemented.
00128 };
00129 
00130 #endif
00131 
00132