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

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


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

Redistribution and use in source and binary forms, with or without
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
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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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 vtkIdFilter - generate scalars or field data from point and cell ids
// .SECTION Description
// vtkIdFilter is a filter to that generates scalars or field data
// using cell and point ids. That is, the point attribute data scalars
// or field data are generated from the point ids, and the cell
// attribute data scalars or field data are generated from the the
// cell ids.
//
// Typically this filter is used with vtkLabeledDataMapper (and possibly
// vtkSelectVisiblePoints) to create labels for points and cells, or labels
// for the point or cell data scalar values.

#ifndef __vtkIdFilter_h
#define __vtkIdFilter_h

#include "vtkDataSetToDataSetFilter.h"

class VTK_EXPORT vtkIdFilter : public vtkDataSetToDataSetFilter 
{
public:
  vtkTypeMacro(vtkIdFilter,vtkDataSetToDataSetFilter);
  void PrintSelf(ostream& os, vtkIndent indent);

  // Description:
  // Construct object with PointIds and CellIds on; and ids being generated
  // as scalars.
  static vtkIdFilter *New();

  // Description:
  // Enable/disable the generation of point ids.
  vtkSetMacro(PointIds,int);
  vtkGetMacro(PointIds,int);
  vtkBooleanMacro(PointIds,int);

  // Description:
  // Enable/disable the generation of point ids.
  vtkSetMacro(CellIds,int);
  vtkGetMacro(CellIds,int);
  vtkBooleanMacro(CellIds,int);

  // Description:
  // Set/Get the flag which controls whether to generate scalar data
  // or field data. If this flag is off, scalar data is generated.
  // Otherwise, field data is generated.
  vtkSetMacro(FieldData,int);
  vtkGetMacro(FieldData,int);
  vtkBooleanMacro(FieldData,int);

protected:
  vtkIdFilter();
  ~vtkIdFilter() {};
  vtkIdFilter(const vtkIdFilter&) {};
  void operator=(const vtkIdFilter&) {};

  void Execute();

  int PointIds;
  int CellIds;
  int FieldData;

};

#endif


