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vtkFeatureEdges Class Reference

extract boundary, non-manifold, and/or sharp edges from polygonal data. More...

#include <vtkFeatureEdges.h>

Inheritance diagram for vtkFeatureEdges:

[legend]Collaboration diagram for vtkFeatureEdges:

[legend]List of all members.

Public Methods
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
virtual void	SetBoundaryEdges (int)
virtual int	GetBoundaryEdges ()
virtual void	BoundaryEdgesOn ()
virtual void	BoundaryEdgesOff ()
virtual void	SetFeatureEdges (int)
virtual int	GetFeatureEdges ()
virtual void	FeatureEdgesOn ()
virtual void	FeatureEdgesOff ()
virtual void	SetFeatureAngle (float)
virtual float	GetFeatureAngle ()
virtual void	SetNonManifoldEdges (int)
virtual int	GetNonManifoldEdges ()
virtual void	NonManifoldEdgesOn ()
virtual void	NonManifoldEdgesOff ()
virtual void	SetManifoldEdges (int)
virtual int	GetManifoldEdges ()
virtual void	ManifoldEdgesOn ()
virtual void	ManifoldEdgesOff ()
virtual void	SetColoring (int)
virtual int	GetColoring ()
virtual void	ColoringOn ()
virtual void	ColoringOff ()
void	SetLocator (vtkPointLocator *locator)
virtual vtkPointLocator *	GetLocator ()
void	CreateDefaultLocator ()
unsigned long	GetMTime ()
Static Public Methods
int	IsTypeOf (const char *type)
vtkFeatureEdges *	SafeDownCast (vtkObject *o)
vtkFeatureEdges *	New ()
Protected Methods
	vtkFeatureEdges ()
	~vtkFeatureEdges ()
	vtkFeatureEdges (const vtkFeatureEdges &)
void	operator= (const vtkFeatureEdges &)
void	Execute ()
void	ComputeInputUpdateExtents (vtkDataObject *output)
Protected Attributes
float	FeatureAngle
int	BoundaryEdges
int	FeatureEdges
int	NonManifoldEdges
int	ManifoldEdges
int	Coloring
vtkPointLocator *	Locator

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Detailed Description

extract boundary, non-manifold, and/or sharp edges from polygonal data.

Date:

2000/12/10 20:08:37

Revision:

1.32

vtkFeatureEdges is a filter to extract special types of edges from input polygonal data. These edges are either 1) boundary (used by one polygon) or a line cell; 2) non-manifold (used by three or more polygons); 3) feature edges (edges used by two triangles and whose dihedral angle > FeatureAngle); or 4) manifold edges (edges used by exactly two polygons). These edges may be extracted in any combination. Edges may also be "colored" (i.e., scalar values assigned) based on edge type. The cell coloring is assigned to the cell data of the extracted edges.

Warning:

To see the coloring of the liens you may have to set the ScalarMode instance variable of the mapper to SetScalarModeToUseCellData(). (This is only a problem if there are point data scalars.)

See also:

vtkFeatureVertices

Examples:

vtkFeatureEdges (examples)

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Member Function Documentation

void vtkFeatureEdges::ComputeInputUpdateExtents (  vtkDataObject *    output )  [protected, virtual]

What is the input update extent that is required to produce the desired output? By default, the whole input is always required but this is overridden in many subclasses. Reimplemented from vtkPolyDataSource.

void vtkFeatureEdges::CreateDefaultLocator (    )

Create default locator. Used to create one when none is specified.

virtual const char* vtkFeatureEdges::GetClassName (    )  [virtual]

Return the class name as a string. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkPolyDataToPolyDataFilter.

unsigned long vtkFeatureEdges::GetMTime (    )  [virtual]

Return MTime also considering the locator. Reimplemented from vtkObject.

virtual int vtkFeatureEdges::IsA (  const char *    type )  [virtual]

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkPolyDataToPolyDataFilter.

int vtkFeatureEdges::IsTypeOf (  const char *    type )  [static]

Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkPolyDataToPolyDataFilter.

vtkFeatureEdges* vtkFeatureEdges::New (    )  [static]

Construct object with feature angle = 30; all types of edges extracted and colored. Reimplemented from vtkPolyDataSource.

void vtkFeatureEdges::PrintSelf (  ostream &    os, vtkIndent    indent )  [virtual]

Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes. Reimplemented from vtkSource.

vtkFeatureEdges* vtkFeatureEdges::SafeDownCast (  vtkObject *    o )  [static]

Will cast the supplied object to vtkObject* is this is a safe operation (i.e., a safe downcast); otherwise NULL is returned. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkPolyDataToPolyDataFilter.

virtual void vtkFeatureEdges::SetBoundaryEdges (  int    )  [virtual]

Turn on/off the extraction of boundary edges.

virtual void vtkFeatureEdges::SetColoring (  int    )  [virtual]

Turn on/off the coloring of edges by type.

virtual void vtkFeatureEdges::SetFeatureAngle (  float    )  [virtual]

Specify the feature angle for extracting feature edges.

virtual void vtkFeatureEdges::SetFeatureEdges (  int    )  [virtual]

Turn on/off the extraction of feature edges.

void vtkFeatureEdges::SetLocator (  vtkPointLocator *    locator )

Set / get a spatial locator for merging points. By default an instance of vtkMergePoints is used.

virtual void vtkFeatureEdges::SetManifoldEdges (  int    )  [virtual]

Turn on/off the extraction of manifold edges.

virtual void vtkFeatureEdges::SetNonManifoldEdges (  int    )  [virtual]

Turn on/off the extraction of non-manifold edges.

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The documentation for this class was generated from the following file:

• vtkFeatureEdges.h

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