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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkPolyDataContourLineInterpolator.h,v $
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 vtkPolyDataContourLineInterpolator - Contour interpolator for polygonal data
//
// .SECTION Description
// vtkPolyDataContourLineInterpolator is an abstract base class for contour
// line interpolators that interpolate on polygonal data.
//
// .SECTION See Also
#ifndef __vtkPolyDataContourLineInterpolator_h
#define __vtkPolyDataContourLineInterpolator_h
#include "vtkContourLineInterpolator.h"
class vtkPolyData;
class vtkPolyDataCollection;
class VTK_WIDGETS_EXPORT vtkPolyDataContourLineInterpolator
: public vtkContourLineInterpolator
{
public:
// Description:
// Standard methods for instances of this class.
vtkTypeRevisionMacro(vtkPolyDataContourLineInterpolator,
vtkContourLineInterpolator);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Subclasses that wish to interpolate a line segment must implement this.
// For instance vtkBezierContourLineInterpolator adds nodes between idx1
// and idx2, that allow the contour to adhere to a bezier curve.
virtual int InterpolateLine( vtkRenderer *ren,
vtkContourRepresentation *rep,
int idx1, int idx2 ) = 0;
// Description:
// The interpolator is given a chance to update the node.
// vtkImageContourLineInterpolator updates the idx'th node in the contour,
// so it automatically sticks to edges in the vicinity as the user
// constructs the contour.
// Returns 0 if the node (world position) is unchanged.
virtual int UpdateNode( vtkRenderer *,
vtkContourRepresentation *,
double * vtkNotUsed(node), int vtkNotUsed(idx) ) = 0;
// Description:
// Be sure to add polydata on which you wish to place points to this list
// or they will not be considered for placement.
vtkGetObjectMacro( Polys, vtkPolyDataCollection );
protected:
vtkPolyDataContourLineInterpolator();
~vtkPolyDataContourLineInterpolator();
vtkPolyDataCollection *Polys;
private:
vtkPolyDataContourLineInterpolator(
const vtkPolyDataContourLineInterpolator&); //Not implemented
void operator=(const vtkPolyDataContourLineInterpolator&); //Not implemented
};
#endif
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