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vtkDataSetSurfaceFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkDataSetSurfaceFilter.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 =========================================================================*/
00034 #ifndef __vtkDataSetSurfaceFilter_h
00035 #define __vtkDataSetSurfaceFilter_h
00036 
00037 #include "vtkDataSetToPolyDataFilter.h"
00038 
00039 class vtkFastGeomQuad; 
00040 class vtkPointData;
00041 class vtkPoints;
00042 
00043 class VTK_GRAPHICS_EXPORT vtkDataSetSurfaceFilter : public vtkDataSetToPolyDataFilter
00044 {
00045 public:
00046   static vtkDataSetSurfaceFilter *New();
00047   vtkTypeRevisionMacro(vtkDataSetSurfaceFilter,vtkDataSetToPolyDataFilter);
00048   void PrintSelf(ostream& os, vtkIndent indent);
00049 
00051 
00054   vtkSetMacro(UseStrips, int);
00055   vtkGetMacro(UseStrips, int);
00056   vtkBooleanMacro(UseStrips, int);
00058 
00059 protected:
00060   vtkDataSetSurfaceFilter();
00061   ~vtkDataSetSurfaceFilter();
00062 
00063   int UseStrips;
00064   
00065   void ComputeInputUpdateExtents(vtkDataObject *output);
00066 
00067   void Execute();
00068   void StructuredExecute(vtkDataSet *input, int *ext);
00069   void UnstructuredGridExecute();
00070   void DataSetExecute();
00071   void ExecuteInformation();
00072 
00073   // Helper methods.
00074   void ExecuteFaceStrips(vtkDataSet *input, int maxFlag, int *ext,
00075                          int aAxis, int bAxis, int cAxis);
00076   void ExecuteFaceQuads(vtkDataSet *input, int maxFlag, int *ext,
00077                         int aAxis, int bAxis, int cAxis);
00078 
00079   void InitializeQuadHash(vtkIdType numPoints);
00080   void DeleteQuadHash();
00081   void InsertQuadInHash(vtkIdType a, vtkIdType b, vtkIdType c, vtkIdType d,
00082                         vtkIdType sourceId);
00083   void InsertTriInHash(vtkIdType a, vtkIdType b, vtkIdType c,
00084                        vtkIdType sourceId);
00085   void InitQuadHashTraversal();
00086   vtkFastGeomQuad *GetNextVisibleQuadFromHash();
00087 
00088   vtkFastGeomQuad **QuadHash;
00089   vtkIdType QuadHashLength;
00090   vtkFastGeomQuad *QuadHashTraversal;
00091   vtkIdType QuadHashTraversalIndex;
00092 
00093   vtkIdType *PointMap;
00094   vtkIdType GetOutputPointId(vtkIdType inPtId, vtkDataSet *input, 
00095                              vtkPoints *outPts, vtkPointData *outPD);
00096   
00097   vtkIdType NumberOfNewCells;
00098   
00099 private:
00100   vtkDataSetSurfaceFilter(const vtkDataSetSurfaceFilter&);  // Not implemented.
00101   void operator=(const vtkDataSetSurfaceFilter&);  // Not implemented.
00102 };
00103 
00104 #endif
00105 
00106