VTK
dox/Graphics/vtkGradientFilter.h
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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    vtkGradientFilter.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 =========================================================================*/
00015 /*----------------------------------------------------------------------------
00016  Copyright (c) Sandia Corporation
00017  See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
00018 ----------------------------------------------------------------------------*/
00019 
00037 #ifndef __vtkGradientFilter_h
00038 #define __vtkGradientFilter_h
00039 
00040 #include "vtkDataSetAlgorithm.h"
00041 
00042 class VTK_GRAPHICS_EXPORT vtkGradientFilter : public vtkDataSetAlgorithm
00043 {
00044 public:
00045   vtkTypeMacro(vtkGradientFilter, vtkDataSetAlgorithm);
00046   virtual void PrintSelf(ostream &os, vtkIndent indent);
00047 
00048   static vtkGradientFilter *New();
00049 
00051 
00056   virtual void SetInputScalars(int fieldAssociation, const char *name);
00057   virtual void SetInputScalars(int fieldAssociation, int fieldAttributeType);
00059 
00061 
00063   vtkGetStringMacro(ResultArrayName);
00064   vtkSetStringMacro(ResultArrayName);
00066 
00068 
00075   vtkGetMacro(FasterApproximation, int);
00076   vtkSetMacro(FasterApproximation, int);
00077   vtkBooleanMacro(FasterApproximation, int);
00079 
00081 
00083   vtkSetMacro(ComputeVorticity, int);
00084   vtkGetMacro(ComputeVorticity, int);
00085   vtkBooleanMacro(ComputeVorticity, int);
00087 
00088 protected:
00089   vtkGradientFilter();
00090   ~vtkGradientFilter();
00091 
00092   virtual int RequestUpdateExtent(vtkInformation *,
00093                                   vtkInformationVector **,
00094                                   vtkInformationVector *);
00095   virtual int RequestData(vtkInformation *, vtkInformationVector **,
00096                           vtkInformationVector *);
00097 
00099 
00102   virtual int ComputeUnstructuredGridGradient(
00103     vtkDataArray* Array, int fieldAssociation, vtkDataSet* input,
00104     vtkDataSet* output);
00106 
00108 
00111   virtual int ComputeRegularGridGradient(
00112     vtkDataArray* Array, int fieldAssociation, vtkDataSet* output);
00114   
00116   char *ResultArrayName;
00117 
00125   int FasterApproximation;
00126 
00130   int ComputeVorticity;
00131 
00132 private:
00133   vtkGradientFilter(const vtkGradientFilter &); // Not implemented
00134   void operator=(const vtkGradientFilter &);    // Not implemented
00135 };
00136 
00137 #endif //_vtkGradientFilter_h