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

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


Copyright (c) 1993-2000 Ken Martin, Will Schroeder, Bill Lorensen 
All rights reserved.

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   this list of conditions and the following disclaimer.

 * Redistributions in binary form must reproduce the above copyright notice,
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   and/or other materials provided with the distribution.

 * Neither name of Ken Martin, Will Schroeder, or Bill Lorensen nor the names
   of any contributors may be used to endorse or promote products derived
   from this software without specific prior written permission.

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ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR
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=========================================================================*/
// .NAME vtkStructuredPointsSource - Abstract class whose subclasses generates structured Points data
// .SECTION Description
// vtkStructuredPointsSource is an abstract class whose subclasses generate
// structured Points data.

// .SECTION See Also
// vtkStructuredPointsReader vtkPLOT3DReader

#ifndef __vtkStructuredPointsSource_h
#define __vtkStructuredPointsSource_h

#include "vtkSource.h"
#include "vtkStructuredPoints.h"

class VTK_EXPORT vtkStructuredPointsSource : public vtkSource
{
public:
  static vtkStructuredPointsSource *New();
  vtkTypeMacro(vtkStructuredPointsSource,vtkSource);

  // Description:
  // Set/Get the output of this source.
  void SetOutput(vtkStructuredPoints *output);
  vtkStructuredPoints *GetOutput();
  vtkStructuredPoints *GetOutput(int idx)
    {return (vtkStructuredPoints *) this->vtkSource::GetOutput(idx); };
  
protected:
  vtkStructuredPointsSource();
  ~vtkStructuredPointsSource() {};
  vtkStructuredPointsSource(const vtkStructuredPointsSource&) {};
  void operator=(const vtkStructuredPointsSource&) {};

  // Used by streaming: The extent of the output being processed
  // by the execute method. Set in the ComputeInputUpdateExtent method.
  int ExecuteExtent[6];
  
  // Default method performs Update to get information.  Not all the old
  // structured points sources compute information
  void ExecuteInformation();

};

#endif


