VTK: dox/Graphics/vtkApproximatingSubdivisionFilter.h Source File

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkApproximatingSubdivisionFilter.h,v $
00005 
00006   Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
00007   All rights reserved.
00008   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00009 
00010      This software is distributed WITHOUT ANY WARRANTY; without even
00011      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00012      PURPOSE.  See the above copyright notice for more information.
00013 
00014 =========================================================================*/
00026 #ifndef __vtkApproximatingSubdivisionFilter_h
00027 #define __vtkApproximatingSubdivisionFilter_h
00028 
00029 #include "vtkPolyDataAlgorithm.h"
00030 
00031 class vtkCellArray;
00032 class vtkCellData;
00033 class vtkIdList;
00034 class vtkIntArray;
00035 class vtkPoints;
00036 class vtkPointData;
00037 
00038 class VTK_GRAPHICS_EXPORT vtkApproximatingSubdivisionFilter : public vtkPolyDataAlgorithm
00039 {
00040 public:
00041   vtkTypeRevisionMacro(vtkApproximatingSubdivisionFilter,vtkPolyDataAlgorithm);
00042   void PrintSelf(ostream& os, vtkIndent indent);
00043 
00045 
00046   vtkSetMacro(NumberOfSubdivisions,int);
00047   vtkGetMacro(NumberOfSubdivisions,int);
00049 
00050 protected:
00051   vtkApproximatingSubdivisionFilter();
00052   ~vtkApproximatingSubdivisionFilter() {};
00053 
00054   int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
00055   virtual void GenerateSubdivisionPoints (vtkPolyData *inputDS,
00056                                           vtkIntArray *edgeData,
00057                                           vtkPoints *outputPts,
00058                                           vtkPointData *outputPD) = 0;
00059   void GenerateSubdivisionCells (vtkPolyData *inputDS, vtkIntArray *edgeData,
00060                                  vtkCellArray *outputPolys,
00061                                  vtkCellData *outputCD);
00062   int FindEdge (vtkPolyData *mesh, vtkIdType cellId, vtkIdType p1,
00063                 vtkIdType p2, vtkIntArray *edgeData, vtkIdList *cellIds);
00064   vtkIdType InterpolatePosition (vtkPoints *inputPts, vtkPoints *outputPts,
00065                                  vtkIdList *stencil, double *weights);
00066   int NumberOfSubdivisions;
00067 private:
00068   vtkApproximatingSubdivisionFilter(const vtkApproximatingSubdivisionFilter&);  // Not implemented.
00069   void operator=(const vtkApproximatingSubdivisionFilter&);  // Not implemented.
00070 };
00071 
00072 #endif