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Common/vtkPyramid.h

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 =========================================================================*/
00049 #ifndef __vtkPyramid_h
00050 #define __vtkPyramid_h
00051 
00052 #include "vtkCell3D.h"
00053 
00054 class vtkLine;
00055 class vtkQuad;
00056 class vtkTriangle;
00057 class vtkUnstructuredGrid;
00058 
00059 class VTK_COMMON_EXPORT vtkPyramid : public vtkCell3D
00060 {
00061 public:
00062   vtkTypeRevisionMacro(vtkPyramid,vtkCell3D);
00063 
00065   static vtkPyramid *New();
00066 
00068 
00069   virtual void GetEdgePoints(int edgeId, int* &pts);
00070   virtual void GetFacePoints(int faceId, int* &pts);
00071   virtual float *GetParametricCoords();
00073 
00075 
00076   int GetCellType() {return VTK_PYRAMID;}
00077   int GetCellDimension() {return 3;}
00078   int GetNumberOfEdges() {return 8;}
00079   int GetNumberOfFaces() {return 5;}
00080   vtkCell *GetEdge(int edgeId);
00081   vtkCell *GetFace(int faceId);
00082   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00083   void Contour(float value, vtkDataArray *cellScalars, 
00084                vtkPointLocator *locator, vtkCellArray *verts, 
00085                vtkCellArray *lines, vtkCellArray *polys,
00086                vtkPointData *inPd, vtkPointData *outPd,
00087                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00088   int EvaluatePosition(float x[3], float* closestPoint,
00089                        int& subId, float pcoords[3],
00090                        float& dist2, float *weights);
00091   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00092                         float *weights);
00093   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00094                         float x[3], float pcoords[3], int& subId);
00095   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00096   void Derivatives(int subId, float pcoords[3], float *values, 
00097                    int dim, float *derivs);
00099 
00101   int GetParametricCenter(float pcoords[3]);
00102 
00104 
00106   static void InterpolationFunctions(float pcoords[3], float weights[5]);
00107   static void InterpolationDerivs(float pcoords[3], float derivs[15]);
00108   int JacobianInverse(float pcoords[3], double **inverse, float derivs[15]);
00109   static int *GetEdgeArray(int edgeId);
00110   static int *GetFaceArray(int faceId);
00112 
00113 protected:
00114   vtkPyramid();
00115   ~vtkPyramid();
00116 
00117   vtkLine *Line;
00118   vtkTriangle *Triangle;
00119   vtkQuad *Quad;
00120 
00121 private:
00122   vtkPyramid(const vtkPyramid&);  // Not implemented.
00123   void operator=(const vtkPyramid&);  // Not implemented.
00124 };
00125 
00126 inline int vtkPyramid::GetParametricCenter(float pcoords[3])
00127 {
00128   pcoords[0] = pcoords[1] = 0.5f;
00129   pcoords[2] = 0.333333f;
00130   return 0;
00131 }
00132 
00133 #endif
00134 
00135 
00136