/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkDataSetToStructuredPointsFilter.h
  Language:  C++
  Date:      $Date$
  Version:   $Revision$


Copyright (c) 1993-2000 Ken Martin, Will Schroeder, Bill Lorensen 
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=========================================================================*/
// .NAME vtkDataSetToStructuredPointsFilter - abstract filter class
// .SECTION Description
// vtkDataSetToStructuredPointsFilter is an abstract filter class whose
// subclasses take as input any dataset and generate structured points 
// data on output.

// .SECTION See Also
// vtkGaussianSplatter vtkImplicitModeller vtkShepardMethod vtkVoxelModeller

#ifndef __vtkDataSetToStructuredPointsFilter_h
#define __vtkDataSetToStructuredPointsFilter_h

#include "vtkStructuredPointsSource.h"
#include "vtkImageToStructuredPoints.h"

class VTK_EXPORT vtkDataSetToStructuredPointsFilter : public vtkStructuredPointsSource
{
public:
  vtkTypeMacro(vtkDataSetToStructuredPointsFilter,vtkStructuredPointsSource);

  // Description:
  // Set / get the input data or filter.
  virtual void SetInput(vtkDataSet *input);
  virtual void SetInput(vtkImageData *cache)
    {vtkImageToStructuredPoints *tmp = cache->MakeImageToStructuredPoints();
    this->SetInput(((vtkDataSet *)tmp->GetOutput())); tmp->Delete();}
  vtkDataSet *GetInput();
  
protected:
  vtkDataSetToStructuredPointsFilter() {this->NumberOfRequiredInputs = 1;};
  ~vtkDataSetToStructuredPointsFilter() {};
  vtkDataSetToStructuredPointsFilter(const vtkDataSetToStructuredPointsFilter&) {};
  void operator=(const vtkDataSetToStructuredPointsFilter&) {};

  // All the DataSetToStructuredPointsFilters require all their input.
  void ComputeInputUpdateExtents(vtkDataObject *output);
};

#endif





