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

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


Copyright (c) 1993-2001 Ken Martin, Will Schroeder, Bill Lorensen 
All rights reserved.

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modification, are permitted provided that the following conditions are met:

 * Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.

 * Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   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.

 * Modified source versions must be plainly marked as such, and must not be
   misrepresented as being the original software.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

=========================================================================*/
// .NAME vtkStructuredPointsReader - read vtk structured points data file
// .SECTION Description
// vtkStructuredPointsReader is a source object that reads ASCII or binary 
// structured points data files in vtk format (see text for format details).
// The output of this reader is a single vtkStructuredPoints data object.
// The superclass of this class, vtkDataReader, provides many methods for
// controlling the reading of the data file, see vtkDataReader for more
// information.
// .SECTION Caveats
// Binary files written on one system may not be readable on other systems.
// .SECTION See Also
// vtkStructuredPoints vtkDataReader

#ifndef __vtkStructuredPointsReader_h
#define __vtkStructuredPointsReader_h

#include "vtkDataReader.h"
#include "vtkStructuredPoints.h"

class VTK_EXPORT vtkStructuredPointsReader : public vtkDataReader
{
public:
  static vtkStructuredPointsReader *New();
  vtkTypeMacro(vtkStructuredPointsReader,vtkDataReader);
  void PrintSelf(ostream& os, vtkIndent indent);

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

  void Execute();

  // 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


