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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    vtkButterflySubdivisionFilter.h
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 =========================================================================*/
00047 #ifndef vtkButterflySubdivisionFilter_h
00048 #define vtkButterflySubdivisionFilter_h
00049 
00050 #include "vtkFiltersModelingModule.h" // For export macro
00051 #include "vtkInterpolatingSubdivisionFilter.h"
00052 
00053 class vtkCellArray;
00054 class vtkIdList;
00055 class vtkIntArray;
00056 
00057 class VTKFILTERSMODELING_EXPORT vtkButterflySubdivisionFilter : public vtkInterpolatingSubdivisionFilter
00058 {
00059 public:
00061 
00062   static vtkButterflySubdivisionFilter *New();
00063   vtkTypeMacro(vtkButterflySubdivisionFilter,vtkInterpolatingSubdivisionFilter);
00065 
00066 protected:
00067   vtkButterflySubdivisionFilter () {}
00068   ~vtkButterflySubdivisionFilter () {}
00069 
00070 private:
00071   int GenerateSubdivisionPoints(vtkPolyData *inputDS, vtkIntArray *edgeData,
00072                                 vtkPoints *outputPts, vtkPointData *outputPD);
00073   void GenerateButterflyStencil(vtkIdType p1, vtkIdType p2, vtkPolyData *polys,
00074                                 vtkIdList *stencilIds, double *weights);
00075   void GenerateLoopStencil(vtkIdType p1, vtkIdType p2, vtkPolyData *polys,
00076                            vtkIdList *stencilIds, double *weights);
00077   void GenerateBoundaryStencil(vtkIdType p1, vtkIdType p2, vtkPolyData *polys,
00078                                vtkIdList *stencilIds, double *weights);
00079 
00080 private:
00081   vtkButterflySubdivisionFilter(const vtkButterflySubdivisionFilter&);  // Not implemented.
00082   void operator=(const vtkButterflySubdivisionFilter&);  // Not implemented.
00083 };
00084 
00085 #endif
00086 
00087 
00088 // VTK-HeaderTest-Exclude: vtkButterflySubdivisionFilter.h