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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkShrinkPolyData.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 vtkShrinkPolyData - shrink cells composing PolyData
// .SECTION Description
// vtkShrinkPolyData shrinks cells composing a polygonal dataset (e.g.,
// vertices, lines, polygons, and triangle strips) towards their centroid.
// The centroid of a cell is computed as the average position of the
// cell points. Shrinking results in disconnecting the cells from
// one another. The output dataset type of this filter is polygonal data.
//
// During execution the filter passes its input cell data to its
// output. Point data attributes are copied to the points created during the
// shrinking process.
// .SECTION Caveats
// It is possible to turn cells inside out or cause self intersection
// in special cases.
// Users should use the vtkTriangleFilter to triangulate meshes that
// contain triangle strips.
// .SECTION See Also
// vtkShrinkFilter
#ifndef __vtkShrinkPolyData_h
#define __vtkShrinkPolyData_h
#include "vtkPolyDataAlgorithm.h"
class VTK_GRAPHICS_EXPORT vtkShrinkPolyData : public vtkPolyDataAlgorithm
{
public:
static vtkShrinkPolyData *New();
vtkTypeRevisionMacro(vtkShrinkPolyData,vtkPolyDataAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Set the fraction of shrink for each cell.
vtkSetClampMacro(ShrinkFactor,double,0.0,1.0);
// Description:
// Get the fraction of shrink for each cell.
vtkGetMacro(ShrinkFactor,double);
protected:
vtkShrinkPolyData(double sf=0.5);
~vtkShrinkPolyData() {};
int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
double ShrinkFactor;
private:
vtkShrinkPolyData(const vtkShrinkPolyData&); // Not implemented.
void operator=(const vtkShrinkPolyData&); // Not implemented.
};
#endif
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