VTK
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00001 /*========================================================================= 00002 00003 Program: Visualization Toolkit 00004 Module: vtkQuadraticTriangle.h 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 =========================================================================*/ 00035 #ifndef __vtkQuadraticTriangle_h 00036 #define __vtkQuadraticTriangle_h 00037 00038 #include "vtkNonLinearCell.h" 00039 00040 class vtkQuadraticEdge; 00041 class vtkTriangle; 00042 class vtkDoubleArray; 00043 00044 class VTK_FILTERING_EXPORT vtkQuadraticTriangle : public vtkNonLinearCell 00045 { 00046 public: 00047 static vtkQuadraticTriangle *New(); 00048 vtkTypeMacro(vtkQuadraticTriangle,vtkNonLinearCell); 00049 void PrintSelf(ostream& os, vtkIndent indent); 00050 00052 00054 int GetCellType() {return VTK_QUADRATIC_TRIANGLE;}; 00055 int GetCellDimension() {return 2;} 00056 int GetNumberOfEdges() {return 3;} 00057 int GetNumberOfFaces() {return 0;} 00058 vtkCell *GetEdge(int edgeId); 00059 vtkCell *GetFace(int) {return 0;} 00061 00062 int CellBoundary(int subId, double pcoords[3], vtkIdList *pts); 00063 void Contour(double value, vtkDataArray *cellScalars, 00064 vtkIncrementalPointLocator *locator, vtkCellArray *verts, 00065 vtkCellArray *lines, vtkCellArray *polys, 00066 vtkPointData *inPd, vtkPointData *outPd, 00067 vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd); 00068 int EvaluatePosition(double x[3], double* closestPoint, 00069 int& subId, double pcoords[3], 00070 double& dist2, double *weights); 00071 void EvaluateLocation(int& subId, double pcoords[3], double x[3], 00072 double *weights); 00073 int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts); 00074 void Derivatives(int subId, double pcoords[3], double *values, 00075 int dim, double *derivs); 00076 virtual double *GetParametricCoords(); 00077 00079 00082 void Clip(double value, vtkDataArray *cellScalars, 00083 vtkIncrementalPointLocator *locator, vtkCellArray *polys, 00084 vtkPointData *inPd, vtkPointData *outPd, 00085 vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, 00086 int insideOut); 00088 00090 00092 int IntersectWithLine(double p1[3], double p2[3], double tol, double& t, 00093 double x[3], double pcoords[3], int& subId); 00095 00096 00099 int GetParametricCenter(double pcoords[3]); 00100 00103 double GetParametricDistance(double pcoords[3]); 00104 00106 00108 static void InterpolationFunctions(double pcoords[3], double weights[6]); 00109 // Description: 00110 // @deprecated Replaced by vtkQuadraticTriangle::InterpolateDerivs as of VTK 5.2 00111 static void InterpolationDerivs(double pcoords[3], double derivs[12]); 00112 // Description: 00113 // Compute the interpolation functions/derivatives 00114 // (aka shape functions/derivatives) 00115 virtual void InterpolateFunctions(double pcoords[3], double weights[6]) 00116 { 00117 vtkQuadraticTriangle::InterpolationFunctions(pcoords,weights); 00118 } 00119 virtual void InterpolateDerivs(double pcoords[3], double derivs[12]) 00120 { 00121 vtkQuadraticTriangle::InterpolationDerivs(pcoords,derivs); 00122 } 00124 00125 protected: 00126 vtkQuadraticTriangle(); 00127 ~vtkQuadraticTriangle(); 00128 00129 vtkQuadraticEdge *Edge; 00130 vtkTriangle *Face; 00131 vtkDoubleArray *Scalars; //used to avoid New/Delete in contouring/clipping 00132 00133 private: 00134 vtkQuadraticTriangle(const vtkQuadraticTriangle&); // Not implemented. 00135 void operator=(const vtkQuadraticTriangle&); // Not implemented. 00136 }; 00137 //---------------------------------------------------------------------------- 00138 inline int vtkQuadraticTriangle::GetParametricCenter(double pcoords[3]) 00139 { 00140 pcoords[0] = pcoords[1] = 1./3; 00141 pcoords[2] = 0.0; 00142 return 0; 00143 } 00144 00145 00146 #endif 00147 00148