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/*=========================================================================
Program: Visualization Toolkit
Module: vtkShrinkFilter.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 vtkShrinkFilter - shrink cells composing an arbitrary data set
// .SECTION Description
// vtkShrinkFilter shrinks cells composing an arbitrary data set
// 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 of this filter
// is of general dataset type vtkUnstructuredGrid.
// .SECTION Caveats
// It is possible to turn cells inside out or cause self intersection
// in special cases.
// .SECTION See Also
// vtkShrinkPolyData
#ifndef __vtkShrinkFilter_h
#define __vtkShrinkFilter_h
#include "vtkUnstructuredGridAlgorithm.h"
class VTK_GRAPHICS_EXPORT vtkShrinkFilter : public vtkUnstructuredGridAlgorithm
{
public:
static vtkShrinkFilter *New();
vtkTypeMacro(vtkShrinkFilter,vtkUnstructuredGridAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Get/Set the fraction of shrink for each cell. The default is 0.5.
vtkSetClampMacro(ShrinkFactor, double, 0.0, 1.0);
vtkGetMacro(ShrinkFactor, double);
protected:
vtkShrinkFilter();
~vtkShrinkFilter();
// Override to specify support for any vtkDataSet input type.
virtual int FillInputPortInformation(int port, vtkInformation* info);
// Main implementation.
virtual int RequestData(vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
double ShrinkFactor;
private:
vtkShrinkFilter(const vtkShrinkFilter&); // Not implemented.
void operator=(const vtkShrinkFilter&); // Not implemented.
};
#endif
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