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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 =========================================================================*/
00042 #ifndef __vtkEmptyCell_h
00043 #define __vtkEmptyCell_h
00044 
00045 #include "vtkCell.h"
00046 
00047 class VTK_COMMON_EXPORT vtkEmptyCell : public vtkCell
00048 {
00049 public:
00050   static vtkEmptyCell *New();
00051   vtkTypeRevisionMacro(vtkEmptyCell,vtkCell);
00052 
00054 
00055   int GetCellType() {return VTK_EMPTY_CELL;};
00056   int GetCellDimension() {return 0;};
00057   int GetNumberOfEdges() {return 0;};
00058   int GetNumberOfFaces() {return 0;};
00059   vtkCell *GetEdge(int) {return 0;};
00060   vtkCell *GetFace(int) {return 0;};
00061   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00062   void Contour(float value, vtkDataArray *cellScalars, 
00063                vtkPointLocator *locator, vtkCellArray *verts1, 
00064                vtkCellArray *lines, vtkCellArray *verts2, 
00065                vtkPointData *inPd, vtkPointData *outPd,
00066                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00067   void Clip(float value, vtkDataArray *cellScalars, 
00068             vtkPointLocator *locator, vtkCellArray *pts,
00069             vtkPointData *inPd, vtkPointData *outPd,
00070             vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
00071             int insideOut);
00073 
00074   int EvaluatePosition(float x[3], float* closestPoint, 
00075                        int& subId, float pcoords[3], 
00076                        float& dist2, float *weights);
00077   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00078                         float *weights);
00079   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00080                         float x[3], float pcoords[3], int& subId);
00081   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00082   void Derivatives(int subId, float pcoords[3], float *values, 
00083                    int dim, float *derivs);
00084 
00085 protected:
00086   vtkEmptyCell() {};
00087   ~vtkEmptyCell() {};
00088 
00089 
00090 private:
00091   vtkEmptyCell(const vtkEmptyCell&);  // Not implemented.
00092   void operator=(const vtkEmptyCell&);  // Not implemented.
00093 };
00094 
00095 #endif
00096 
00097