dox/Widgets/vtkPolygonalSurfaceContourLineInterpolator.h

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

  Program:   Visualization Toolkit
  Module:    vtkPolygonalSurfaceContourLineInterpolator.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef __vtkPolygonalSurfaceContourLineInterpolator_h
#define __vtkPolygonalSurfaceContourLineInterpolator_h

#include "vtkPolyDataContourLineInterpolator.h"

class vtkDijkstraGraphGeodesicPath;

class VTK_WIDGETS_EXPORT vtkPolygonalSurfaceContourLineInterpolator : public vtkPolyDataContourLineInterpolator
{
public:

  vtkTypeMacro(vtkPolygonalSurfaceContourLineInterpolator, vtkPolyDataContourLineInterpolator);
  void PrintSelf(ostream& os, vtkIndent indent);

  static vtkPolygonalSurfaceContourLineInterpolator *New();


  virtual int InterpolateLine( vtkRenderer *ren, 
                               vtkContourRepresentation *rep,
                               int idx1, int idx2 );
  

  virtual int UpdateNode( vtkRenderer *, 
                          vtkContourRepresentation *,
                          double * vtkNotUsed(node), int vtkNotUsed(idx) );


  vtkSetMacro( DistanceOffset, double ); 
  vtkGetMacro( DistanceOffset, double ); 
  
protected:
  vtkPolygonalSurfaceContourLineInterpolator();
  ~vtkPolygonalSurfaceContourLineInterpolator();

  double         DistanceOffset;

private:
  vtkPolygonalSurfaceContourLineInterpolator(const vtkPolygonalSurfaceContourLineInterpolator&);  //Not implemented
  void operator=(const vtkPolygonalSurfaceContourLineInterpolator&);  //Not implemented

  // Cache the last used vertex id's (start and end).
  // If they are the same, don't recompute.
  vtkIdType      LastInterpolatedVertexIds[2];

  vtkDijkstraGraphGeodesicPath* DijkstraGraphGeodesicPath;
};

#endif

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