Produce filled convex hulls around subsets of vertices in a vtkGraph. More...

#include <vtkGraphAnnotationLayersFilter.h>

Inheritance diagram for vtkGraphAnnotationLayersFilter:

Collaboration diagram for vtkGraphAnnotationLayersFilter:

Public Types
typedef vtkPolyDataAlgorithm	Superclass
Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
void	SetScaleFactor (double scale)
void	SetHullShapeToBoundingRectangle ()
void	SetHullShapeToConvexHull ()
void	SetMinHullSizeInWorld (double size)
void	SetMinHullSizeInDisplay (int size)
void	SetRenderer (vtkRenderer *renderer)
virtual unsigned long	GetMTime ()

void	OutlineOn ()
void	OutlineOff ()
void	SetOutline (bool b)
Static Public Member Functions
static vtkGraphAnnotationLayersFilter *	New ()
static int	IsTypeOf (const char *type)
static vtkGraphAnnotationLayersFilter *	SafeDownCast (vtkObject *o)
Protected Member Functions
	vtkGraphAnnotationLayersFilter ()
	~vtkGraphAnnotationLayersFilter ()
int	FillInputPortInformation (int port, vtkInformation *info)

int	RequestData (vtkInformation , vtkInformationVector , vtkInformationVector )

Detailed Description

Produce filled convex hulls around subsets of vertices in a vtkGraph.

Produces a vtkPolyData comprised of filled polygons of the convex hull of a cluster. Alternatively, you may choose to output bounding rectangles. Clusters with fewer than three vertices are artificially expanded to ensure visibility (see vtkConvexHull2D).

The first input is a vtkGraph with points, possibly set by passing the graph through vtkGraphLayout (z-values are ignored). The second input is a vtkAnnotationsLayer containing vtkSelectionNodeS of vertex ids (the 'clusters' output of vtkTulipReader for example).

Setting OutlineOn() additionally produces outlines of the clusters on output port 1.

Three arrays are added to the cells of the output: "Hull id"; "Hull name"; and "Hull color".

Note: This filter operates in the x,y-plane and as such works best with an interactor style that does not allow camera rotation, such as vtkInteractorStyleRubberBand2D.

See also:: vtkContext2D

Thanks:: Thanks to Colin Myers, University of Leeds for providing this implementation.

Tests:: vtkGraphAnnotationLayersFilter (Tests)

Definition at line 62 of file vtkGraphAnnotationLayersFilter.h.

Member Typedef Documentation

typedef vtkPolyDataAlgorithm vtkGraphAnnotationLayersFilter::Superclass

Reimplemented from vtkPolyDataAlgorithm.

Definition at line 66 of file vtkGraphAnnotationLayersFilter.h.

Constructor & Destructor Documentation

vtkGraphAnnotationLayersFilter::vtkGraphAnnotationLayersFilter ( ) [protected]

vtkGraphAnnotationLayersFilter::~vtkGraphAnnotationLayersFilter ( ) [protected]

Member Function Documentation

static vtkGraphAnnotationLayersFilter* vtkGraphAnnotationLayersFilter::New ( ) [static]

Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

Reimplemented from vtkPolyDataAlgorithm.

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

Reimplemented from vtkPolyDataAlgorithm.

static int vtkGraphAnnotationLayersFilter::IsTypeOf ( const char * name ) [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 vtkPolyDataAlgorithm.

virtual int vtkGraphAnnotationLayersFilter::IsA ( const char * name ) [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 vtkPolyDataAlgorithm.

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

Reimplemented from vtkPolyDataAlgorithm.

void vtkGraphAnnotationLayersFilter::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 vtkPolyDataAlgorithm.

void vtkGraphAnnotationLayersFilter::OutlineOn ( )

Produce outlines of the hulls on output port 1.

void vtkGraphAnnotationLayersFilter::OutlineOff ( )

Produce outlines of the hulls on output port 1.

void vtkGraphAnnotationLayersFilter::SetOutline ( bool b )

Produce outlines of the hulls on output port 1.

void vtkGraphAnnotationLayersFilter::SetScaleFactor ( double scale )

Scale each hull by the amount specified. Defaults to 1.0.

void vtkGraphAnnotationLayersFilter::SetHullShapeToBoundingRectangle ( )

Set the shape of the hulls to bounding rectangle.

void vtkGraphAnnotationLayersFilter::SetHullShapeToConvexHull ( )