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124 lines
4.0 KiB
124 lines
4.0 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkFeatureEdges.h,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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// .NAME vtkFeatureEdges - extract boundary, non-manifold, and/or sharp edges from polygonal data
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// .SECTION Description
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// vtkFeatureEdges is a filter to extract special types of edges from
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// input polygonal data. These edges are either 1) boundary (used by
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// one polygon) or a line cell; 2) non-manifold (used by three or more
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// polygons); 3) feature edges (edges used by two triangles and whose
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// dihedral angle > FeatureAngle); or 4) manifold edges (edges used by
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// exactly two polygons). These edges may be extracted in any
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// combination. Edges may also be "colored" (i.e., scalar values assigned)
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// based on edge type. The cell coloring is assigned to the cell data of
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// the extracted edges.
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// .SECTION Caveats
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// To see the coloring of the liens you may have to set the ScalarMode
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// instance variable of the mapper to SetScalarModeToUseCellData(). (This
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// is only a problem if there are point data scalars.)
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// .SECTION See Also
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// vtkExtractEdges
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#ifndef __vtkFeatureEdges_h
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#define __vtkFeatureEdges_h
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#include "vtkPolyDataAlgorithm.h"
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class vtkPointLocator;
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class VTK_GRAPHICS_EXPORT vtkFeatureEdges : public vtkPolyDataAlgorithm
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{
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public:
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vtkTypeRevisionMacro(vtkFeatureEdges,vtkPolyDataAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// Construct object with feature angle = 30; all types of edges extracted
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// and colored.
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static vtkFeatureEdges *New();
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// Description:
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// Turn on/off the extraction of boundary edges.
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vtkSetMacro(BoundaryEdges,int);
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vtkGetMacro(BoundaryEdges,int);
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vtkBooleanMacro(BoundaryEdges,int);
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// Description:
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// Turn on/off the extraction of feature edges.
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vtkSetMacro(FeatureEdges,int);
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vtkGetMacro(FeatureEdges,int);
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vtkBooleanMacro(FeatureEdges,int);
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// Description:
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// Specify the feature angle for extracting feature edges.
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vtkSetClampMacro(FeatureAngle,double,0.0,180.0);
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vtkGetMacro(FeatureAngle,double);
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// Description:
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// Turn on/off the extraction of non-manifold edges.
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vtkSetMacro(NonManifoldEdges,int);
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vtkGetMacro(NonManifoldEdges,int);
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vtkBooleanMacro(NonManifoldEdges,int);
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// Description:
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// Turn on/off the extraction of manifold edges.
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vtkSetMacro(ManifoldEdges,int);
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vtkGetMacro(ManifoldEdges,int);
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vtkBooleanMacro(ManifoldEdges,int);
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// Description:
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// Turn on/off the coloring of edges by type.
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vtkSetMacro(Coloring,int);
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vtkGetMacro(Coloring,int);
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vtkBooleanMacro(Coloring,int);
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// Description:
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// Set / get a spatial locator for merging points. By
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// default an instance of vtkMergePoints is used.
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void SetLocator(vtkPointLocator *locator);
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vtkGetObjectMacro(Locator,vtkPointLocator);
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// Description:
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// Create default locator. Used to create one when none is specified.
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void CreateDefaultLocator();
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// Description:
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// Return MTime also considering the locator.
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unsigned long GetMTime();
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protected:
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vtkFeatureEdges();
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~vtkFeatureEdges();
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// Usual data generation method
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int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
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int RequestUpdateExtent(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
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double FeatureAngle;
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int BoundaryEdges;
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int FeatureEdges;
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int NonManifoldEdges;
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int ManifoldEdges;
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int Coloring;
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vtkPointLocator *Locator;
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private:
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vtkFeatureEdges(const vtkFeatureEdges&); // Not implemented.
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void operator=(const vtkFeatureEdges&); // Not implemented.
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};
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#endif
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