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/*=========================================================================
Program: Visualization Toolkit
Module: vtkFillHolesFilter.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 vtkFillHolesFilter
* @brief identify and fill holes in meshes
*
* vtkFillHolesFilter is a filter that identifies and fills holes in
* input vtkPolyData meshes. Holes are identified by locating
* boundary edges, linking them together into loops, and then
* triangulating the resulting loops. Note that you can specify
* an approximate limit to the size of the hole that can be filled.
*
* @warning
* Note that any mesh with boundary edges by definition has a
* topological hole. This even includes a reactangular grid
* (e.g., the output of vtkPlaneSource). In such situations, if
* the outer hole is filled, retriangulation of the hole will cause
* geometric overlap of the mesh. This can be prevented by using
* the hole size instance variable to prevent the larger holes
* from being triangulated.
*
* @warning
* Note this filter only operates on polygons and triangle strips.
* Vertices and polylines are passed through untouched.
*/
#ifndef vtkFillHolesFilter_h
#define vtkFillHolesFilter_h
#include "vtkFiltersModelingModule.h" // For export macro
#include "vtkPolyDataAlgorithm.h"
class vtkAbstractTransform;
class VTKFILTERSMODELING_EXPORT vtkFillHolesFilter : public vtkPolyDataAlgorithm
{
public:
//@{
/**
* Standard methods for instantiation, type information and printing.
*/
static vtkFillHolesFilter *New();
vtkTypeMacro(vtkFillHolesFilter,vtkPolyDataAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
//@}
//@{
/**
* Specify the maximum hole size to fill. This is represented as a radius
* to the bounding circumsphere containing the hole. Note that this is an
* approximate area; the actual area cannot be computed without first
* triangulating the hole.
*/
vtkSetClampMacro(HoleSize, double, 0.0, VTK_FLOAT_MAX);
vtkGetMacro(HoleSize, double);
//@}
protected:
vtkFillHolesFilter();
~vtkFillHolesFilter();
int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
double HoleSize;
private:
vtkFillHolesFilter(const vtkFillHolesFilter&) VTK_DELETE_FUNCTION;
void operator=(const vtkFillHolesFilter&) VTK_DELETE_FUNCTION;
};
#endif
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