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Common/vtkPixel.h

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkPixel.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 =========================================================================*/
00046 #ifndef __vtkPixel_h
00047 #define __vtkPixel_h
00048 
00049 #include "vtkCell.h"
00050 
00051 class vtkLine;
00052 
00053 class VTK_COMMON_EXPORT vtkPixel : public vtkCell
00054 {
00055 public:
00056   static vtkPixel *New();
00057   vtkTypeRevisionMacro(vtkPixel,vtkCell);
00058 
00060 
00061   int GetCellType() {return VTK_PIXEL;};
00062   int GetCellDimension() {return 2;};
00063   int GetNumberOfEdges() {return 4;};
00064   int GetNumberOfFaces() {return 0;};
00065   vtkCell *GetEdge(int edgeId);
00066   vtkCell *GetFace(int) {return 0;};
00067   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00068   void Contour(float value, vtkDataArray *cellScalars, 
00069                vtkPointLocator *locator, vtkCellArray *verts, 
00070                vtkCellArray *lines, vtkCellArray *polys,
00071                vtkPointData *inPd, vtkPointData *outPd,
00072                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00073   void Clip(float value, vtkDataArray *cellScalars, 
00074             vtkPointLocator *locator, vtkCellArray *polys,
00075             vtkPointData *inPd, vtkPointData *outPd,
00076             vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
00077             int insideOut);
00078   int EvaluatePosition(float x[3], float* closestPoint,
00079                        int& subId, float pcoords[3],
00080                        float& dist2, float *weights);
00081   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00082                         float *weights);
00083   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00084                         float x[3], float pcoords[3], int& subId);
00085   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00086   void Derivatives(int subId, float pcoords[3], float *values, 
00087                    int dim, float *derivs);
00089 
00091 
00092   static void InterpolationFunctions(float pcoords[3], float weights[4]);
00093   static void InterpolationDerivs(float pcoords[3], float derivs[8]);
00095 
00096   
00097 protected:
00098   vtkPixel();
00099   ~vtkPixel();
00100 
00101   vtkLine *Line;
00102 
00103 private:
00104   vtkPixel(const vtkPixel&);  // Not implemented.
00105   void operator=(const vtkPixel&);  // Not implemented.
00106 };
00107 
00108 #endif
00109 
00110