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Common/vtkVoxel.h

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkVoxel.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 =========================================================================*/
00045 #ifndef __vtkVoxel_h
00046 #define __vtkVoxel_h
00047 
00048 #include "vtkCell3D.h"
00049 
00050 class vtkLine;
00051 class vtkPixel;
00052 
00053 class VTK_COMMON_EXPORT vtkVoxel : public vtkCell3D
00054 {
00055 public:
00056   static vtkVoxel *New();
00057   vtkTypeRevisionMacro(vtkVoxel,vtkCell3D);
00058 
00060 
00061   virtual void GetEdgePoints(int edgeId, int* &pts);
00062   virtual void GetFacePoints(int faceId, int* &pts);
00063   virtual float *GetParametricCoords();
00065 
00067 
00068   int GetCellType() {return VTK_VOXEL;}
00069   int GetCellDimension() {return 3;}
00070   int GetNumberOfEdges() {return 12;}
00071   int GetNumberOfFaces() {return 6;}
00072   vtkCell *GetEdge(int edgeId);
00073   vtkCell *GetFace(int faceId);
00074   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00075   void Contour(float value, vtkDataArray *cellScalars, 
00076                vtkPointLocator *locator, vtkCellArray *verts, 
00077                vtkCellArray *lines, vtkCellArray *polys,
00078                vtkPointData *inPd, vtkPointData *outPd,
00079                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00080   int EvaluatePosition(float x[3], float* closestPoint,
00081                        int& subId, float pcoords[3],
00082                        float& dist2, float *weights);
00083   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00084                         float *weights);
00085   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00086                         float x[3], float pcoords[3], int& subId);
00087   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00088   void Derivatives(int subId, float pcoords[3], float *values, 
00089                    int dim, float *derivs);
00091 
00093 
00094   static void InterpolationFunctions(float pcoords[3], float weights[8]);
00095   static void InterpolationDerivs(float pcoords[3], float derivs[24]);
00096   static int *GetEdgeArray(int edgeId);
00097   static int *GetFaceArray(int faceId);
00099 
00100 protected:
00101   vtkVoxel();
00102   ~vtkVoxel();
00103 
00104   vtkLine *Line;
00105   vtkPixel *Pixel;
00106   
00107 private:
00108   vtkVoxel(const vtkVoxel&);  // Not implemented.
00109   void operator=(const vtkVoxel&);  // Not implemented.
00110 };
00111 
00112 #endif
00113 
00114