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Graphics/vtkApproximatingSubdivisionFilter.h

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkApproximatingSubdivisionFilter.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 __vtkApproximatingSubdivisionFilter_h
00043 #define __vtkApproximatingSubdivisionFilter_h
00044 
00045 #include "vtkPolyDataToPolyDataFilter.h"
00046 
00047 class vtkCellArray;
00048 class vtkCellData;
00049 class vtkIdList;
00050 class vtkIntArray;
00051 class vtkPoints;
00052 class vtkPointData;
00053 
00054 class VTK_GRAPHICS_EXPORT vtkApproximatingSubdivisionFilter : public vtkPolyDataToPolyDataFilter
00055 {
00056 public:
00057   vtkTypeRevisionMacro(vtkApproximatingSubdivisionFilter,vtkPolyDataToPolyDataFilter);
00058   void PrintSelf(ostream& os, vtkIndent indent);
00059 
00061 
00062   vtkSetMacro(NumberOfSubdivisions,int);
00063   vtkGetMacro(NumberOfSubdivisions,int);
00065 
00066 protected:
00067   vtkApproximatingSubdivisionFilter();
00068   ~vtkApproximatingSubdivisionFilter() {};
00069 
00070   void Execute();
00071   virtual void GenerateSubdivisionPoints (vtkPolyData *inputDS,
00072                                           vtkIntArray *edgeData,
00073                                           vtkPoints *outputPts,
00074                                           vtkPointData *outputPD) = 0;
00075   void GenerateSubdivisionCells (vtkPolyData *inputDS, vtkIntArray *edgeData,
00076                                  vtkCellArray *outputPolys,
00077                                  vtkCellData *outputCD);
00078   int FindEdge (vtkPolyData *mesh, vtkIdType cellId, vtkIdType p1,
00079                 vtkIdType p2, vtkIntArray *edgeData, vtkIdList *cellIds);
00080   vtkIdType InterpolatePosition (vtkPoints *inputPts, vtkPoints *outputPts,
00081                                  vtkIdList *stencil, float *weights);
00082   int NumberOfSubdivisions;
00083 private:
00084   vtkApproximatingSubdivisionFilter(const vtkApproximatingSubdivisionFilter&);  // Not implemented.
00085   void operator=(const vtkApproximatingSubdivisionFilter&);  // Not implemented.
00086 };
00087 
00088 #endif
00089 
00090