/usr/include/vtk-6.2/vtkTerrainContourLineInterpolator.h is in libvtk6-dev 6.2.0+dfsg1-10build1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104  | /*=========================================================================
  Program:   Visualization Toolkit
  Module:    vtkTerrainContourLineInterpolator.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.
=========================================================================*/
// .NAME vtkTerrainContourLineInterpolator - Contour interpolator for DEM data.
//
// .SECTION Description
// vtkTerrainContourLineInterpolator interpolates nodes on height field data.
// The class is meant to be used in conjunciton with a vtkContourWidget,
// enabling you to draw paths on terrain data. The class internally uses a
// vtkProjectedTerrainPath. Users can set kind of interpolation
// desired between two node points by setting the modes of the this filter.
// For instance:
//
// \code
// contourRepresentation->SetLineInterpolator(interpolator);
// interpolator->SetImageData( demDataFile );
// interpolator->GetProjector()->SetProjectionModeToHug();
// interpolator->SetHeightOffset(25.0);
// \endcode
//
// You are required to set the ImageData to this class as the height-field
// image.
//
// .SECTION See Also
// vtkTerrainDataPointPlacer vtkProjectedTerrainPath
#ifndef vtkTerrainContourLineInterpolator_h
#define vtkTerrainContourLineInterpolator_h
#include "vtkInteractionWidgetsModule.h" // For export macro
#include "vtkContourLineInterpolator.h"
class vtkImageData;
class vtkProjectedTerrainPath;
class VTKINTERACTIONWIDGETS_EXPORT vtkTerrainContourLineInterpolator
                       : public vtkContourLineInterpolator
{
public:
  // Description:
  // Instantiate this class.
  static vtkTerrainContourLineInterpolator *New();
  // Description:
  // Standard methods for instances of this class.
  vtkTypeMacro(vtkTerrainContourLineInterpolator,
                              vtkContourLineInterpolator);
  void PrintSelf(ostream& os, vtkIndent indent);
  // Description:
  // Interpolate to create lines between contour nodes idx1 and idx2.
  // Depending on the projection mode, the interpolated line may either
  // hug the terrain, just connect the two points with a straight line or
  // a non-occluded interpolation.
  // Used internally by vtkContourRepresentation.
  virtual int InterpolateLine( vtkRenderer *ren,
                               vtkContourRepresentation *rep,
                               int idx1, int idx2 );
  // Description:
  // The interpolator is given a chance to update the node.
  // Used internally by vtkContourRepresentation
  // Returns 0 if the node (world position) is unchanged.
  virtual int UpdateNode( vtkRenderer *,
                          vtkContourRepresentation *,
                          double * vtkNotUsed(node), int vtkNotUsed(idx) );
  // Description:
  // Set the height field data. The height field data is a 2D image. The
  // scalars in the image represent the height field. This must be set.
  virtual void SetImageData(vtkImageData *);
  vtkGetObjectMacro(ImageData, vtkImageData);
  // Description:
  // Get the vtkProjectedTerrainPath operator used to project the terrain
  // onto the data. This operator has several modes, See the documentation
  // of vtkProjectedTerrainPath. The default mode is to hug the terrain
  // data at 0 height offset.
  vtkGetObjectMacro(Projector, vtkProjectedTerrainPath);
protected:
  vtkTerrainContourLineInterpolator();
  ~vtkTerrainContourLineInterpolator();
  vtkImageData              *ImageData; // height field data
  vtkProjectedTerrainPath   *Projector;
private:
  vtkTerrainContourLineInterpolator(const vtkTerrainContourLineInterpolator&);  //Not implemented
  void operator=(const vtkTerrainContourLineInterpolator&);  //Not implemented
};
#endif
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