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Rendering/vtkFiniteDifferenceGradientEstimator.h

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkFiniteDifferenceGradientEstimator.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 =========================================================================*/
00016 
00057 #ifndef __vtkFiniteDifferenceGradientEstimator_h
00058 #define __vtkFiniteDifferenceGradientEstimator_h
00059 
00060 #include "vtkEncodedGradientEstimator.h"
00061 
00062 class VTK_RENDERING_EXPORT vtkFiniteDifferenceGradientEstimator : public vtkEncodedGradientEstimator
00063 {
00064 public:
00065   vtkTypeRevisionMacro(vtkFiniteDifferenceGradientEstimator,vtkEncodedGradientEstimator);
00066   void PrintSelf( ostream& os, vtkIndent indent );
00067 
00070   static vtkFiniteDifferenceGradientEstimator *New();
00071 
00073 
00075   vtkSetMacro( SampleSpacingInVoxels, int );
00076   vtkGetMacro( SampleSpacingInVoxels, int );
00078 
00079   // The sample spacing between samples taken for the normal estimation
00080   int SampleSpacingInVoxels;
00081 
00082 protected:
00083   vtkFiniteDifferenceGradientEstimator();
00084   ~vtkFiniteDifferenceGradientEstimator();
00085 
00086 
00088   void UpdateNormals( void );
00089 private:
00090   vtkFiniteDifferenceGradientEstimator(const vtkFiniteDifferenceGradientEstimator&);  // Not implemented.
00091   void operator=(const vtkFiniteDifferenceGradientEstimator&);  // Not implemented.
00092 }; 
00093 
00094 
00095 #endif