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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 =========================================================================*/
00048 #ifndef __vtkPyramid_h
00049 #define __vtkPyramid_h
00050 
00051 #include "vtkCell3D.h"
00052 
00053 class vtkLine;
00054 class vtkQuad;
00055 class vtkTriangle;
00056 class vtkUnstructuredGrid;
00057 
00058 class VTK_COMMON_EXPORT vtkPyramid : public vtkCell3D
00059 {
00060 public:
00061   vtkTypeRevisionMacro(vtkPyramid,vtkCell3D);
00062 
00064   static vtkPyramid *New();
00065 
00067 
00068   virtual void GetEdgePoints(int edgeId, int* &pts);
00069   virtual void GetFacePoints(int faceId, int* &pts);
00070   virtual float *GetParametricCoords();
00072 
00074 
00075   int GetCellType() {return VTK_PYRAMID;}
00076   int GetCellDimension() {return 3;}
00077   int GetNumberOfEdges() {return 8;}
00078   int GetNumberOfFaces() {return 5;}
00079   vtkCell *GetEdge(int edgeId);
00080   vtkCell *GetFace(int faceId);
00081   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00082   void Contour(float value, vtkDataArray *cellScalars, 
00083                vtkPointLocator *locator, vtkCellArray *verts, 
00084                vtkCellArray *lines, vtkCellArray *polys,
00085                vtkPointData *inPd, vtkPointData *outPd,
00086                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00087   int EvaluatePosition(float x[3], float* closestPoint,
00088                        int& subId, float pcoords[3],
00089                        float& dist2, float *weights);
00090   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00091                         float *weights);
00092   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00093                         float x[3], float pcoords[3], int& subId);
00094   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00095   void Derivatives(int subId, float pcoords[3], float *values, 
00096                    int dim, float *derivs);
00098 
00100   int GetParametricCenter(float pcoords[3]);
00101 
00103 
00105   static void InterpolationFunctions(float pcoords[3], float weights[5]);
00106   static void InterpolationDerivs(float pcoords[3], float derivs[15]);
00107   int JacobianInverse(float pcoords[3], double **inverse, float derivs[15]);
00108   static int *GetEdgeArray(int edgeId);
00109   static int *GetFaceArray(int faceId);
00111 
00112 protected:
00113   vtkPyramid();
00114   ~vtkPyramid();
00115 
00116   vtkLine *Line;
00117   vtkTriangle *Triangle;
00118   vtkQuad *Quad;
00119 
00120 private:
00121   vtkPyramid(const vtkPyramid&);  // Not implemented.
00122   void operator=(const vtkPyramid&);  // Not implemented.
00123 };
00124 
00125 inline int vtkPyramid::GetParametricCenter(float pcoords[3])
00126 {
00127   pcoords[0] = pcoords[1] = 0.5f;
00128   pcoords[2] = 0.333333f;
00129   return 0;
00130 }
00131 
00132 #endif
00133 
00134 
00135