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dox/Common/vtkTetra.h

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00001 /*========================================================================= 00002 00003 Program: Visualization Toolkit 00004 Module: $RCSfile: vtkTetra.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 =========================================================================*/ 00036 #ifndef __vtkTetra_h 00037 #define __vtkTetra_h 00038 00039 #include "vtkCell3D.h" 00040 00041 class vtkLine; 00042 class vtkTriangle; 00043 class vtkUnstructuredGrid; 00044 00045 class VTK_COMMON_EXPORT vtkTetra : public vtkCell3D 00046 { 00047 public: 00048 static vtkTetra *New(); 00049 vtkTypeRevisionMacro(vtkTetra,vtkCell3D); 00050 00052 00053 virtual void GetEdgePoints(int edgeId, int* &pts); 00054 virtual void GetFacePoints(int faceId, int* &pts); 00055 virtual float *GetParametricCoords(); 00057 00059 00060 int GetCellType() {return VTK_TETRA;} 00061 int GetNumberOfEdges() {return 6;} 00062 int GetNumberOfFaces() {return 4;} 00063 vtkCell *GetEdge(int edgeId); 00064 vtkCell *GetFace(int faceId); 00065 void Contour(float value, vtkDataArray *cellScalars, 00066 vtkPointLocator *locator, vtkCellArray *verts, 00067 vtkCellArray *lines, vtkCellArray *polys, 00068 vtkPointData *inPd, vtkPointData *outPd, 00069 vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd); 00070 void Clip(float value, vtkDataArray *cellScalars, 00071 vtkPointLocator *locator, vtkCellArray *connectivity, 00072 vtkPointData *inPd, vtkPointData *outPd, 00073 vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, 00074 int insideOut); 00075 int EvaluatePosition(float x[3], float* closestPoint, 00076 int& subId, float pcoords[3], 00077 float& dist2, float *weights); 00078 void EvaluateLocation(int& subId, float pcoords[3], float x[3], 00079 float *weights); 00080 int IntersectWithLine(float p1[3], float p2[3], float tol, float& t, 00081 float x[3], float pcoords[3], int& subId); 00082 int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts); 00083 void Derivatives(int subId, float pcoords[3], float *values, 00084 int dim, float *derivs); 00086 00090 int CellBoundary(int subId, float pcoords[3], vtkIdList *pts); 00091 00093 int GetParametricCenter(float pcoords[3]); 00094 00096 00097 static void TetraCenter(float p1[3], float p2[3], float p3[3], float p4[3], 00098 float center[3]); 00100 00102 00104 static double Circumsphere(double p1[3], double p2[3], double p3[3], 00105 double p4[3], double center[3]); 00107 00109 00112 static double Insphere(double p1[3], double p2[3], double p3[3], 00113 double p4[3], double center[3]); 00115 00117 00128 static int BarycentricCoords(double x[3], double x1[3], double x2[3], 00129 double x3[3], double x4[3], double bcoords[4]); 00131 00133 00135 static double ComputeVolume(double p1[3], double p2[3], double p3[3], 00136 double p4[3]); 00138 00142 int JacobianInverse(double **inverse, float derivs[12]); 00143 00145 00146 static void InterpolationFunctions(float pcoords[3], float weights[4]); 00147 static void InterpolationDerivs(float derivs[12]); 00148 static int *GetEdgeArray(int edgeId); 00149 static int *GetFaceArray(int faceId); 00151 00152 protected: 00153 vtkTetra(); 00154 ~vtkTetra(); 00155 00156 vtkLine *Line; 00157 vtkTriangle *Triangle; 00158 00159 private: 00160 vtkTetra(const vtkTetra&); // Not implemented. 00161 void operator=(const vtkTetra&); // Not implemented. 00162 }; 00163 00164 inline int vtkTetra::GetParametricCenter(float pcoords[3]) 00165 { 00166 pcoords[0] = pcoords[1] = pcoords[2] = 0.25; 00167 return 0; 00168 } 00169 00170 #endif 00171 00172 00173