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Common/vtkQuadraticHexahedron.h

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 =========================================================================*/
00051 #ifndef __vtkQuadraticHexahedron_h
00052 #define __vtkQuadraticHexahedron_h
00053 
00054 #include "vtkNonLinearCell.h"
00055 
00056 class vtkPolyData;
00057 class vtkQuadraticEdge;
00058 class vtkQuadraticQuad;
00059 class vtkHexahedron;
00060 
00061 class VTK_COMMON_EXPORT vtkQuadraticHexahedron : public vtkNonLinearCell
00062 {
00063 public:
00064   static vtkQuadraticHexahedron *New();
00065   vtkTypeRevisionMacro(vtkQuadraticHexahedron,vtkNonLinearCell);
00066 
00068 
00070   int GetCellType() {return VTK_QUADRATIC_HEXAHEDRON;}
00071   int GetCellDimension() {return 3;}
00072   int GetNumberOfEdges() {return 12;}
00073   int GetNumberOfFaces() {return 6;}
00074   vtkCell *GetEdge(int);
00075   vtkCell *GetFace(int);
00077 
00078   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00079   void Contour(float value, vtkDataArray *cellScalars, 
00080                vtkPointLocator *locator, vtkCellArray *verts, 
00081                vtkCellArray *lines, vtkCellArray *polys, 
00082                vtkPointData *inPd, vtkPointData *outPd,
00083                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00084   int EvaluatePosition(float x[3], float* closestPoint,
00085                        int& subId, float pcoords[3], 
00086                        float& dist2, float *weights);
00087   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00088                         float *weights);
00089   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00090   void Derivatives(int subId, float pcoords[3], float *values, 
00091                    int dim, float *derivs);
00092 
00094 
00097   void Clip(float value, vtkDataArray *cellScalars, 
00098             vtkPointLocator *locator, vtkCellArray *tetras,
00099             vtkPointData *inPd, vtkPointData *outPd,
00100             vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
00101             int insideOut);
00103 
00105 
00107   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00108                         float x[3], float pcoords[3], int& subId);
00110 
00111   
00113 
00114   static void InterpolationFunctions(float pcoords[3], float weights[3]);
00115   static void InterpolationDerivs(float pcoords[3], float derivs[3]);
00117 
00121   void JacobianInverse(float pcoords[3], double **inverse, float derivs[60]);
00122 
00123 protected:
00124   vtkQuadraticHexahedron();
00125   ~vtkQuadraticHexahedron();
00126 
00127   vtkQuadraticEdge *Edge;
00128   vtkQuadraticQuad *Face;
00129   vtkHexahedron    *Hex;
00130   vtkPointData     *PointData;
00131   vtkCellData      *CellData;
00132   vtkFloatArray    *Scalars;
00133   
00134   void Subdivide(vtkPointData *inPd, vtkCellData *inCd, vtkIdType cellId);
00135 
00136 private:
00137   vtkQuadraticHexahedron(const vtkQuadraticHexahedron&);  // Not implemented.
00138   void operator=(const vtkQuadraticHexahedron&);  // Not implemented.
00139 };
00140 
00141 #endif
00142 
00143