VTK
dox/Filtering/vtkVoxel.h
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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    vtkVoxel.h
00005 
00006   Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
00007   All rights reserved.
00008   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00009 
00010      This software is distributed WITHOUT ANY WARRANTY; without even
00011      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00012      PURPOSE.  See the above copyright notice for more information.
00013 
00014 =========================================================================*/
00033 #ifndef __vtkVoxel_h
00034 #define __vtkVoxel_h
00035 
00036 #include "vtkCell3D.h"
00037 
00038 class vtkLine;
00039 class vtkPixel;
00040 class vtkIncrementalPointLocator;
00041 
00042 class VTK_FILTERING_EXPORT vtkVoxel : public vtkCell3D
00043 {
00044 public:
00045   static vtkVoxel *New();
00046   vtkTypeMacro(vtkVoxel,vtkCell3D);
00047   void PrintSelf(ostream& os, vtkIndent indent);
00048 
00050 
00051   virtual void GetEdgePoints(int edgeId, int* &pts);
00052   virtual void GetFacePoints(int faceId, int* &pts);
00053   virtual double *GetParametricCoords();
00055 
00057 
00058   int GetCellType() {return VTK_VOXEL;}
00059   int GetCellDimension() {return 3;}
00060   int GetNumberOfEdges() {return 12;}
00061   int GetNumberOfFaces() {return 6;}
00062   vtkCell *GetEdge(int edgeId);
00063   vtkCell *GetFace(int faceId);
00064   int CellBoundary(int subId, double pcoords[3], vtkIdList *pts);
00065   void Contour(double value, vtkDataArray *cellScalars,
00066                vtkIncrementalPointLocator *locator, vtkCellArray *verts,
00067                vtkCellArray *lines, vtkCellArray *polys,
00068                vtkPointData *inPd, vtkPointData *outPd,
00069                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00070   int EvaluatePosition(double x[3], double* closestPoint,
00071                        int& subId, double pcoords[3],
00072                        double& dist2, double *weights);
00073   void EvaluateLocation(int& subId, double pcoords[3], double x[3],
00074                         double *weights);
00075   int IntersectWithLine(double p1[3], double p2[3], double tol, double& t,
00076                         double x[3], double pcoords[3], int& subId);
00077   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00078   void Derivatives(int subId, double pcoords[3], double *values,
00079                    int dim, double *derivs);
00081 
00083 
00084   static void InterpolationDerivs(double pcoords[3], double derivs[24]);
00085   // Description:
00086   // Compute the interpolation functions/derivatives
00087   // (aka shape functions/derivatives)
00088   virtual void InterpolateFunctions(double pcoords[3], double weights[8])
00089     {
00090     vtkVoxel::InterpolationFunctions(pcoords,weights);
00091     }
00092   virtual void InterpolateDerivs(double pcoords[3], double derivs[24])
00093     {
00094     vtkVoxel::InterpolationDerivs(pcoords,derivs);
00095     }
00097 
00101   static void InterpolationFunctions(double pcoords[3], double weights[8]);
00102 
00104 
00106   static int *GetEdgeArray(int edgeId);
00107   static int *GetFaceArray(int faceId);
00109 
00110 protected:
00111   vtkVoxel();
00112   ~vtkVoxel();
00113 
00114 private:
00115   vtkVoxel(const vtkVoxel&);  // Not implemented.
00116   void operator=(const vtkVoxel&);  // Not implemented.
00117 
00118   vtkLine *Line;
00119   vtkPixel *Pixel;
00120 };
00121 
00122 #endif
00123 
00124