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dox/Common/vtkPyramid.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkPyramid.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 __vtkPyramid_h
00038 #define __vtkPyramid_h
00039 
00040 #include "vtkCell3D.h"
00041 
00042 class vtkLine;
00043 class vtkQuad;
00044 class vtkTriangle;
00045 class vtkUnstructuredGrid;
00046 
00047 class VTK_COMMON_EXPORT vtkPyramid : public vtkCell3D
00048 {
00049 public:
00050   vtkTypeRevisionMacro(vtkPyramid,vtkCell3D);
00051 
00053   static vtkPyramid *New();
00054 
00056 
00057   virtual void GetEdgePoints(int edgeId, int* &pts);
00058   virtual void GetFacePoints(int faceId, int* &pts);
00059   virtual float *GetParametricCoords();
00061 
00063 
00064   int GetCellType() {return VTK_PYRAMID;}
00065   int GetCellDimension() {return 3;}
00066   int GetNumberOfEdges() {return 8;}
00067   int GetNumberOfFaces() {return 5;}
00068   vtkCell *GetEdge(int edgeId);
00069   vtkCell *GetFace(int faceId);
00070   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00071   void Contour(float value, vtkDataArray *cellScalars, 
00072                vtkPointLocator *locator, vtkCellArray *verts, 
00073                vtkCellArray *lines, vtkCellArray *polys,
00074                vtkPointData *inPd, vtkPointData *outPd,
00075                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00076   int EvaluatePosition(float x[3], float* closestPoint,
00077                        int& subId, float pcoords[3],
00078                        float& dist2, float *weights);
00079   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00080                         float *weights);
00081   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00082                         float x[3], float pcoords[3], int& subId);
00083   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00084   void Derivatives(int subId, float pcoords[3], float *values, 
00085                    int dim, float *derivs);
00087 
00089   int GetParametricCenter(float pcoords[3]);
00090 
00092 
00094   static void InterpolationFunctions(float pcoords[3], float weights[5]);
00095   static void InterpolationDerivs(float pcoords[3], float derivs[15]);
00096   int JacobianInverse(float pcoords[3], double **inverse, float derivs[15]);
00097   static int *GetEdgeArray(int edgeId);
00098   static int *GetFaceArray(int faceId);
00100 
00101 protected:
00102   vtkPyramid();
00103   ~vtkPyramid();
00104 
00105   vtkLine *Line;
00106   vtkTriangle *Triangle;
00107   vtkQuad *Quad;
00108 
00109 private:
00110   vtkPyramid(const vtkPyramid&);  // Not implemented.
00111   void operator=(const vtkPyramid&);  // Not implemented.
00112 };
00113 
00114 inline int vtkPyramid::GetParametricCenter(float pcoords[3])
00115 {
00116   pcoords[0] = pcoords[1] = 0.5f;
00117   pcoords[2] = 0.333333f;
00118   return 0;
00119 }
00120 
00121 #endif
00122 
00123 
00124