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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.
=========================================================================*/
// .NAME vtkFillHolesFilter - identify and fill holes in meshes
// .SECTION Description
// 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.
//
// .SECTION Caveats
// 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.
//
// Note this filter only operates on polygons and triangle strips.
// Vertices and polylines are passed through untouched.
#ifndef __vtkFillHolesFilter_h
#define __vtkFillHolesFilter_h
#include "vtkPolyDataAlgorithm.h"
class vtkAbstractTransform;
class VTK_GRAPHICS_EXPORT vtkFillHolesFilter : public vtkPolyDataAlgorithm
{
public:
// Description:
// Standard methods for instantiation, type information and printing.
static vtkFillHolesFilter *New();
vtkTypeMacro(vtkFillHolesFilter,vtkPolyDataAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// 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_LARGE_FLOAT);
vtkGetMacro(HoleSize, double);
protected:
vtkFillHolesFilter();
~vtkFillHolesFilter();
int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
double HoleSize;
private:
vtkFillHolesFilter(const vtkFillHolesFilter&); // Not implemented.
void operator=(const vtkFillHolesFilter&); // Not implemented.
};
#endif
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