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00039 #ifndef __vtkQuadraticTriangle_h
00040 #define __vtkQuadraticTriangle_h
00041
00042 #include "vtkNonLinearCell.h"
00043
00044 class vtkPolyData;
00045 class vtkQuadraticEdge;
00046 class vtkTriangle;
00047
00048 class VTK_COMMON_EXPORT vtkQuadraticTriangle : public vtkNonLinearCell
00049 {
00050 public:
00051 static vtkQuadraticTriangle *New();
00052 vtkTypeRevisionMacro(vtkQuadraticTriangle,vtkNonLinearCell);
00053
00055
00057 int GetCellType() {return VTK_QUADRATIC_TRIANGLE;};
00058 int GetCellDimension() {return 2;}
00059 int GetNumberOfEdges() {return 3;}
00060 int GetNumberOfFaces() {return 0;}
00061 vtkCell *GetEdge(int edgeId);
00062 vtkCell *GetFace(int) {return 0;}
00064
00065 int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00066 void Contour(float value, vtkDataArray *cellScalars,
00067 vtkPointLocator *locator, vtkCellArray *verts,
00068 vtkCellArray *lines, vtkCellArray *polys,
00069 vtkPointData *inPd, vtkPointData *outPd,
00070 vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00071 int EvaluatePosition(float x[3], float* closestPoint,
00072 int& subId, float pcoords[3],
00073 float& dist2, float *weights);
00074 void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00075 float *weights);
00076 int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00077 void Derivatives(int subId, float pcoords[3], float *values,
00078 int dim, float *derivs);
00079
00081
00084 void Clip(float value, vtkDataArray *cellScalars,
00085 vtkPointLocator *locator, vtkCellArray *polys,
00086 vtkPointData *inPd, vtkPointData *outPd,
00087 vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
00088 int insideOut);
00090
00092
00094 int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00095 float x[3], float pcoords[3], int& subId);
00097
00098
00101 int GetParametricCenter(float pcoords[3]);
00102
00104
00105 static void InterpolationFunctions(float pcoords[3], float weights[3]);
00106 static void InterpolationDerivs(float pcoords[3], float derivs[3]);
00108
00109 protected:
00110 vtkQuadraticTriangle();
00111 ~vtkQuadraticTriangle();
00112
00113 vtkQuadraticEdge *Edge;
00114 vtkTriangle *Face;
00115 vtkFloatArray *Scalars;
00116
00117 private:
00118 vtkQuadraticTriangle(const vtkQuadraticTriangle&);
00119 void operator=(const vtkQuadraticTriangle&);
00120 };
00121
00122 #endif
00123
00124