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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 =========================================================================*/
00047 #ifndef __vtkPixel_h
00048 #define __vtkPixel_h
00049 
00050 #include "vtkCell.h"
00051 
00052 class vtkLine;
00053 
00054 class VTK_COMMON_EXPORT vtkPixel : public vtkCell
00055 {
00056 public:
00057   static vtkPixel *New();
00058   vtkTypeRevisionMacro(vtkPixel,vtkCell);
00059 
00061 
00062   int GetCellType() {return VTK_PIXEL;};
00063   int GetCellDimension() {return 2;};
00064   int GetNumberOfEdges() {return 4;};
00065   int GetNumberOfFaces() {return 0;};
00066   vtkCell *GetEdge(int edgeId);
00067   vtkCell *GetFace(int) {return 0;};
00068   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00069   void Contour(float value, vtkDataArray *cellScalars, 
00070                vtkPointLocator *locator, vtkCellArray *verts, 
00071                vtkCellArray *lines, vtkCellArray *polys,
00072                vtkPointData *inPd, vtkPointData *outPd,
00073                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00074   void Clip(float value, vtkDataArray *cellScalars, 
00075             vtkPointLocator *locator, vtkCellArray *polys,
00076             vtkPointData *inPd, vtkPointData *outPd,
00077             vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
00078             int insideOut);
00079   int EvaluatePosition(float x[3], float* closestPoint,
00080                        int& subId, float pcoords[3],
00081                        float& dist2, float *weights);
00082   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00083                         float *weights);
00084   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00085                         float x[3], float pcoords[3], int& subId);
00086   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00087   void Derivatives(int subId, float pcoords[3], float *values, 
00088                    int dim, float *derivs);
00090 
00092 
00093   static void InterpolationFunctions(float pcoords[3], float weights[4]);
00094   static void InterpolationDerivs(float pcoords[3], float derivs[8]);
00096 
00097   
00098 protected:
00099   vtkPixel();
00100   ~vtkPixel();
00101 
00102   vtkLine *Line;
00103 
00104 private:
00105   vtkPixel(const vtkPixel&);  // Not implemented.
00106   void operator=(const vtkPixel&);  // Not implemented.
00107 };
00108 
00109 #endif
00110 
00111