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/*=========================================================================
Program: Visualization Toolkit
Module: vtkShrinkPolyData.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.
=========================================================================*/
/**
* @class vtkShrinkPolyData
* @brief shrink cells composing PolyData
*
* 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.
*
* @warning
* 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.
*
* @sa
* vtkShrinkFilter
*/
#ifndef vtkShrinkPolyData_h
#define vtkShrinkPolyData_h
#include "vtkFiltersGeneralModule.h" // For export macro
#include "vtkPolyDataAlgorithm.h"
class VTKFILTERSGENERAL_EXPORT vtkShrinkPolyData : public vtkPolyDataAlgorithm
{
public:
static vtkShrinkPolyData *New();
vtkTypeMacro(vtkShrinkPolyData,vtkPolyDataAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
//@{
/**
* Set the fraction of shrink for each cell.
*/
vtkSetClampMacro(ShrinkFactor,double,0.0,1.0);
//@}
//@{
/**
* Get the fraction of shrink for each cell.
*/
vtkGetMacro(ShrinkFactor,double);
//@}
protected:
vtkShrinkPolyData(double sf=0.5);
~vtkShrinkPolyData() VTK_OVERRIDE {}
int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *) VTK_OVERRIDE;
double ShrinkFactor;
private:
vtkShrinkPolyData(const vtkShrinkPolyData&) VTK_DELETE_FUNCTION;
void operator=(const vtkShrinkPolyData&) VTK_DELETE_FUNCTION;
};
#endif
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