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

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


Copyright (c) 1993-2001 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,
   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.

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   misrepresented as being the original software.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
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ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
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=========================================================================*/
// .NAME vtkKWExtractGeometryByScalar - extract geometry having specified point scalars
// .SECTION Description
// vtkKWExtractGeometryByScalar extracts cells from the input geometry that are
// made up of points with one of the specified scalar values.
// The scalars must be integer values.

#ifndef __vtkKWExtractGeometryByScalar_h
#define __vtkKWExtractGeometryByScalar_h

#include "vtkUnstructuredGridToUnstructuredGridFilter.h"

class vtkIdList;

class VTK_EXPORT vtkKWExtractGeometryByScalar : public vtkUnstructuredGridToUnstructuredGridFilter
{
public:
  static vtkKWExtractGeometryByScalar *New();
  vtkTypeRevisionMacro(vtkKWExtractGeometryByScalar,
                       vtkUnstructuredGridToUnstructuredGridFilter);
  void PrintSelf(ostream& os, vtkIndent indent);
  
  void SetValue(int i, int value);
  int GetValue(int i);
  void RemoveAllValues();
  
protected:
  vtkKWExtractGeometryByScalar();
  ~vtkKWExtractGeometryByScalar();
  
  void Execute();

  vtkIdList *ScalarValues;
  
private:
  vtkKWExtractGeometryByScalar(const vtkKWExtractGeometryByScalar&);  // Not implemented
  void operator=(const vtkKWExtractGeometryByScalar&);  // Not implemented
};

#endif
