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Graphics/vtkLoopSubdivisionFilter.h

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 =========================================================================*/
00064 #ifndef __vtkLoopSubdivisionFilter_h
00065 #define __vtkLoopSubdivisionFilter_h
00066 
00067 #include "vtkApproximatingSubdivisionFilter.h"
00068 
00069 class vtkPolyData;
00070 class vtkIntArray;
00071 class vtkPoints;
00072 class vtkIdList;
00073 
00074 class VTK_GRAPHICS_EXPORT vtkLoopSubdivisionFilter : public vtkApproximatingSubdivisionFilter
00075 {
00076 public:
00078 
00079   static vtkLoopSubdivisionFilter *New();
00080   vtkTypeRevisionMacro(vtkLoopSubdivisionFilter,vtkApproximatingSubdivisionFilter);
00082 
00083 protected:
00084   vtkLoopSubdivisionFilter () {};
00085   ~vtkLoopSubdivisionFilter () {};
00086 
00087   void GenerateSubdivisionPoints (vtkPolyData *inputDS, vtkIntArray *edgeData,
00088                                   vtkPoints *outputPts,
00089                                   vtkPointData *outputPD);
00090   void GenerateEvenStencil (vtkIdType p1, vtkPolyData *polys,
00091                             vtkIdList *stencilIds, float *weights);
00092   void GenerateOddStencil (vtkIdType p1, vtkIdType p2, vtkPolyData *polys,
00093                            vtkIdList *stencilIds, float *weights);
00094 
00095   void ComputeInputUpdateExtents(vtkDataObject *output);
00096 private:
00097   vtkLoopSubdivisionFilter(const vtkLoopSubdivisionFilter&);  // Not implemented.
00098   void operator=(const vtkLoopSubdivisionFilter&);  // Not implemented.
00099 };
00100 
00101 #endif
00102 
00103