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vtkLoopSubdivisionFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkLoopSubdivisionFilter.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 =========================================================================*/
00052 #ifndef __vtkLoopSubdivisionFilter_h
00053 #define __vtkLoopSubdivisionFilter_h
00054 
00055 #include "vtkApproximatingSubdivisionFilter.h"
00056 
00057 class vtkPolyData;
00058 class vtkIntArray;
00059 class vtkPoints;
00060 class vtkIdList;
00061 
00062 class VTK_GRAPHICS_EXPORT vtkLoopSubdivisionFilter : public vtkApproximatingSubdivisionFilter
00063 {
00064 public:
00066 
00067   static vtkLoopSubdivisionFilter *New();
00068   vtkTypeRevisionMacro(vtkLoopSubdivisionFilter,vtkApproximatingSubdivisionFilter);
00070 
00071 protected:
00072   vtkLoopSubdivisionFilter () {};
00073   ~vtkLoopSubdivisionFilter () {};
00074 
00075   void GenerateSubdivisionPoints (vtkPolyData *inputDS, vtkIntArray *edgeData,
00076                                   vtkPoints *outputPts,
00077                                   vtkPointData *outputPD);
00078   void GenerateEvenStencil (vtkIdType p1, vtkPolyData *polys,
00079                             vtkIdList *stencilIds, float *weights);
00080   void GenerateOddStencil (vtkIdType p1, vtkIdType p2, vtkPolyData *polys,
00081                            vtkIdList *stencilIds, float *weights);
00082 
00083   void ComputeInputUpdateExtents(vtkDataObject *output);
00084 private:
00085   vtkLoopSubdivisionFilter(const vtkLoopSubdivisionFilter&);  // Not implemented.
00086   void operator=(const vtkLoopSubdivisionFilter&);  // Not implemented.
00087 };
00088 
00089 #endif
00090 
00091