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vtkWedge.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkWedge.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 =========================================================================*/
00037 #ifndef __vtkWedge_h
00038 #define __vtkWedge_h
00039 
00040 #include "vtkCell3D.h"
00041 
00042 class vtkLine;
00043 class vtkTriangle;
00044 class vtkQuad;
00045 
00046 class vtkUnstructuredGrid;
00047 
00048 class VTK_COMMON_EXPORT vtkWedge : public vtkCell3D
00049 {
00050 public:
00051   static vtkWedge *New();
00052   vtkTypeRevisionMacro(vtkWedge,vtkCell3D);
00053 
00055 
00056   virtual void GetEdgePoints(int edgeId, int* &pts);
00057   virtual void GetFacePoints(int faceId, int* &pts);
00058   virtual float *GetParametricCoords();
00060 
00062 
00063   int GetCellType() {return VTK_WEDGE;}
00064   int GetCellDimension() {return 3;}
00065   int GetNumberOfEdges() {return 9;}
00066   int GetNumberOfFaces() {return 5;}
00067   vtkCell *GetEdge(int edgeId);
00068   vtkCell *GetFace(int faceId);
00069   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00070   void Contour(float value, vtkDataArray *cellScalars, 
00071                vtkPointLocator *locator, vtkCellArray *verts, 
00072                vtkCellArray *lines, vtkCellArray *polys,
00073                vtkPointData *inPd, vtkPointData *outPd,
00074                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
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 
00088   int GetParametricCenter(float pcoords[3]);
00089 
00091 
00093   static void InterpolationFunctions(float pcoords[3], float weights[6]);
00094   static void InterpolationDerivs(float pcoords[3], float derivs[18]);
00095   int JacobianInverse(float pcoords[3], double **inverse, float derivs[18]);
00096   static int *GetEdgeArray(int edgeId);
00097   static int *GetFaceArray(int faceId);
00099 
00100 protected:
00101   vtkWedge();
00102   ~vtkWedge();
00103 
00104   vtkLine *Line;
00105   vtkTriangle *Triangle;
00106   vtkQuad *Quad;
00107 
00108 private:
00109   vtkWedge(const vtkWedge&);  // Not implemented.
00110   void operator=(const vtkWedge&);  // Not implemented.
00111 };
00112 
00113 inline int vtkWedge::GetParametricCenter(float pcoords[3])
00114 {
00115   pcoords[0] = pcoords[1] = 0.333333f;
00116   pcoords[2] = 0.5f;
00117   return 0;
00118 }
00119 
00120 #endif
00121 
00122 
00123