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

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


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

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

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   of any contributors may be used to endorse or promote products derived
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ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR
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=========================================================================*/
// .NAME vtkStripper - create triangle strips and/or poly-lines
// .SECTION Description
// vtkStripper is a filter that generates triangle strips and/or poly-lines
// from input polygons, triangle strips, and lines. Input polygons are 
// assumed to be triangles. (Use vtkTriangleFilter to triangulate 
// non-triangular polygons.) The filter will pass through (to the output)
// vertices if they are present in the input poly-data.
//
// The ivar MaximumLength can be used to control the maximum
// allowable triangle strip and poly-line length.

// .SECTION Caveats
// If triangle strips or poly-lines exist in the input data they will
// be passed through to the output data. This filter will only construct
// triangle strips if triangle polygons are available; and will only 
// construct poly-lines if lines are available.

// .SECTION See Also
// vtkTriangleFilter

#ifndef __vtkStripper_h
#define __vtkStripper_h

#include "vtkPolyDataToPolyDataFilter.h"

class VTK_EXPORT vtkStripper : public vtkPolyDataToPolyDataFilter
{
public:
  vtkTypeMacro(vtkStripper,vtkPolyDataToPolyDataFilter);
  void PrintSelf(ostream& os, vtkIndent indent);
  
  // Description:
  // Construct object with MaximumLength set to 1000.
  static vtkStripper *New();

  // Description:
  // Specify the maximum number of triangles in a triangle strip,
  // and/or the maximum number of lines in a poly-line.
  vtkSetClampMacro(MaximumLength,int,4,100000);
  vtkGetMacro(MaximumLength,int);

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

  // Usual data generation method
  void Execute();

  int MaximumLength;
};

#endif


