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00039 #ifndef __vtkQuadraticQuad_h
00040 #define __vtkQuadraticQuad_h
00041
00042 #include "vtkNonLinearCell.h"
00043
00044 class vtkPolyData;
00045 class vtkQuadraticEdge;
00046 class vtkQuad;
00047 class vtkPointData;
00048 class vtkCellData;
00049
00050 class VTK_COMMON_EXPORT vtkQuadraticQuad : public vtkNonLinearCell
00051 {
00052 public:
00053 static vtkQuadraticQuad *New();
00054 vtkTypeRevisionMacro(vtkQuadraticQuad,vtkNonLinearCell);
00055
00057
00059 int GetCellType() {return VTK_QUADRATIC_QUAD;};
00060 int GetCellDimension() {return 2;}
00061 int GetNumberOfEdges() {return 4;}
00062 int GetNumberOfFaces() {return 0;}
00063 vtkCell *GetEdge(int);
00064 vtkCell *GetFace(int) {return 0;}
00066
00067 int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00068 void Contour(float value, vtkDataArray *cellScalars,
00069 vtkPointLocator *locator, vtkCellArray *verts,
00070 vtkCellArray *lines, vtkCellArray *polys,
00071 vtkPointData *inPd, vtkPointData *outPd,
00072 vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00073 int EvaluatePosition(float x[3], float* closestPoint,
00074 int& subId, float pcoords[3],
00075 float& dist2, float *weights);
00076 void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00077 float *weights);
00078 int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00079 void Derivatives(int subId, float pcoords[3], float *values,
00080 int dim, float *derivs);
00081
00083
00085 void Clip(float value, vtkDataArray *cellScalars,
00086 vtkPointLocator *locator, vtkCellArray *polys,
00087 vtkPointData *inPd, vtkPointData *outPd,
00088 vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
00089 int insideOut);
00091
00093
00095 int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00096 float x[3], float pcoords[3], int& subId);
00098
00099
00101
00102 static void InterpolationFunctions(float pcoords[3], float weights[8]);
00103 static void InterpolationDerivs(float pcoords[3], float derivs[16]);
00105
00106 protected:
00107 vtkQuadraticQuad();
00108 ~vtkQuadraticQuad();
00109
00110 vtkQuadraticEdge *Edge;
00111 vtkQuad *Quad;
00112 vtkPointData *PointData;
00113 vtkCellData *CellData;
00114 vtkFloatArray *Scalars;
00115
00116 void Subdivide(float *weights);
00117 void InterpolateAttributes(vtkPointData *inPd, vtkCellData *inCd,
00118 vtkIdType cellId, float *weights);
00119
00120 private:
00121 vtkQuadraticQuad(const vtkQuadraticQuad&);
00122 void operator=(const vtkQuadraticQuad&);
00123 };
00124
00125 #endif
00126
00127