dox / Filtering
vtkTetra.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkTetra.h,v $
00005 
00006   Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
00007   All rights reserved.
00008   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00009 
00010      This software is distributed WITHOUT ANY WARRANTY; without even
00011      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00012      PURPOSE.  See the above copyright notice for more information.
00013 
00014 =========================================================================*/
00045 #ifndef __vtkTetra_h
00046 #define __vtkTetra_h
00047 
00048 #include "vtkCell3D.h"
00049 
00050 class vtkLine;
00051 class vtkTriangle;
00052 class vtkUnstructuredGrid;
00053 
00054 class VTK_FILTERING_EXPORT vtkTetra : public vtkCell3D
00055 {
00056 public:
00057   static vtkTetra *New();
00058   vtkTypeRevisionMacro(vtkTetra,vtkCell3D);
00059   void PrintSelf(ostream& os, vtkIndent indent);
00060 
00062 
00063   virtual void GetEdgePoints(int edgeId, int* &pts);
00064   virtual void GetFacePoints(int faceId, int* &pts);
00066 
00068 
00069   int GetCellType() {return VTK_TETRA;}
00070   int GetNumberOfEdges() {return 6;}
00071   int GetNumberOfFaces() {return 4;}
00072   vtkCell *GetEdge(int edgeId);
00073   vtkCell *GetFace(int faceId);
00074   void Contour(double value, vtkDataArray *cellScalars, 
00075                vtkPointLocator *locator, vtkCellArray *verts, 
00076                vtkCellArray *lines, vtkCellArray *polys,
00077                vtkPointData *inPd, vtkPointData *outPd,
00078                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00079   void Clip(double value, vtkDataArray *cellScalars, 
00080             vtkPointLocator *locator, vtkCellArray *connectivity,
00081             vtkPointData *inPd, vtkPointData *outPd,
00082             vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, 
00083             int insideOut);
00084   int EvaluatePosition(double x[3], double* closestPoint,
00085                        int& subId, double pcoords[3],
00086                        double& dist2, double *weights);
00087   void EvaluateLocation(int& subId, double pcoords[3], double x[3],
00088                         double *weights);
00089   int IntersectWithLine(double p1[3], double p2[3], double tol, double& t,
00090                         double x[3], double pcoords[3], int& subId);
00091   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00092   void Derivatives(int subId, double pcoords[3], double *values, 
00093                    int dim, double *derivs);
00094   virtual double *GetParametricCoords();
00096 
00100   int CellBoundary(int subId, double pcoords[3], vtkIdList *pts);
00101   
00103   int GetParametricCenter(double pcoords[3]);
00104 
00107   double GetParametricDistance(double pcoords[3]);
00108 
00110 
00111   static void TetraCenter(double p1[3], double p2[3], double p3[3], double p4[3], 
00112                           double center[3]);
00114 
00116 
00119   static double Circumsphere(double  p1[3], double p2[3], double p3[3], 
00120                              double p4[3], double center[3]);
00122 
00124 
00127   static double Insphere(double  p1[3], double p2[3], double p3[3], 
00128                          double p4[3], double center[3]);
00130 
00132 
00143   static int BarycentricCoords(double x[3], double  x1[3], double x2[3], 
00144                                double x3[3], double x4[3], double bcoords[4]);
00146   
00148 
00150   static double ComputeVolume(double  p1[3], double p2[3], double p3[3], 
00151                               double p4[3]);
00153 
00157   int JacobianInverse(double **inverse, double derivs[12]);
00158 
00160 
00161   static void InterpolationFunctions(double pcoords[3], double weights[4]);
00162   static void InterpolationDerivs(double derivs[12]);
00163   static int *GetEdgeArray(int edgeId);
00164   static int *GetFaceArray(int faceId);
00166 
00167 protected:
00168   vtkTetra();
00169   ~vtkTetra();
00170 
00171   vtkLine *Line;
00172   vtkTriangle *Triangle;
00173 
00174 private:
00175   vtkTetra(const vtkTetra&);  // Not implemented.
00176   void operator=(const vtkTetra&);  // Not implemented.
00177 };
00178 
00179 inline int vtkTetra::GetParametricCenter(double pcoords[3])
00180 {
00181   pcoords[0] = pcoords[1] = pcoords[2] = 0.25;
00182   return 0;
00183 }
00184 
00185 #endif
00186 
00187 
00188