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Common/vtkEmptyCell.h

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkEmptyCell.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 =========================================================================*/
00041 #ifndef __vtkEmptyCell_h
00042 #define __vtkEmptyCell_h
00043 
00044 #include "vtkCell.h"
00045 
00046 class VTK_COMMON_EXPORT vtkEmptyCell : public vtkCell
00047 {
00048 public:
00049   static vtkEmptyCell *New();
00050   vtkTypeRevisionMacro(vtkEmptyCell,vtkCell);
00051 
00053 
00054   int GetCellType() {return VTK_EMPTY_CELL;};
00055   int GetCellDimension() {return 0;};
00056   int GetNumberOfEdges() {return 0;};
00057   int GetNumberOfFaces() {return 0;};
00058   vtkCell *GetEdge(int) {return 0;};
00059   vtkCell *GetFace(int) {return 0;};
00060   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00061   void Contour(float value, vtkDataArray *cellScalars, 
00062                vtkPointLocator *locator, vtkCellArray *verts1, 
00063                vtkCellArray *lines, vtkCellArray *verts2, 
00064                vtkPointData *inPd, vtkPointData *outPd,
00065                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00066   void Clip(float value, vtkDataArray *cellScalars, 
00067             vtkPointLocator *locator, vtkCellArray *pts,
00068             vtkPointData *inPd, vtkPointData *outPd,
00069             vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
00070             int insideOut);
00072 
00073   int EvaluatePosition(float x[3], float* closestPoint, 
00074                        int& subId, float pcoords[3], 
00075                        float& dist2, float *weights);
00076   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00077                         float *weights);
00078   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00079                         float x[3], float pcoords[3], int& subId);
00080   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00081   void Derivatives(int subId, float pcoords[3], float *values, 
00082                    int dim, float *derivs);
00083 
00084 protected:
00085   vtkEmptyCell() {};
00086   ~vtkEmptyCell() {};
00087 
00088 
00089 private:
00090   vtkEmptyCell(const vtkEmptyCell&);  // Not implemented.
00091   void operator=(const vtkEmptyCell&);  // Not implemented.
00092 };
00093 
00094 #endif
00095 
00096