Produce filled convex hulls around subsets of vertices in a vtkGraph. More...
#include <vtkGraphAnnotationLayersFilter.h>
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.
Definition at line 63 of file vtkGraphAnnotationLayersFilter.h.
Member Typedef Documentation
Reimplemented from vtkPolyDataAlgorithm.
Definition at line 67 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.
| 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 | ( | vtkObjectBase * | o | ) | [static] |
Reimplemented from vtkPolyDataAlgorithm.
| virtual vtkObjectBase* vtkGraphAnnotationLayersFilter::NewInstanceInternal | ( | ) | const [protected, virtual] |
Reimplemented from vtkPolyDataAlgorithm.
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.
Produce outlines of the hulls on output port 1.
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.
Set the shape of the hulls to bounding rectangle.
Set the shape of the hulls to convex hull. Default.
Set the minimum x,y-dimensions of each hull in world coordinates. Defaults to 1.0. Set to 0.0 to disable.
Set the minimum x,y-dimensions of each hull in pixels. You must also set a vtkRenderer. Defaults to 1. Set to 0 to disable.
| void vtkGraphAnnotationLayersFilter::SetRenderer | ( | vtkRenderer * | renderer | ) |
Renderer needed for MinHullSizeInDisplay calculation. Not reference counted.
| virtual unsigned long vtkGraphAnnotationLayersFilter::GetMTime | ( | ) | [virtual] |
The modified time of this filter.
Reimplemented from vtkObject.
| int vtkGraphAnnotationLayersFilter::RequestData | ( | vtkInformation * | , |
| vtkInformationVector ** | , | ||
| vtkInformationVector * | |||
| ) | [protected, virtual] |
This is called by the superclass. This is the method you should override.
Reimplemented from vtkPolyDataAlgorithm.
| int vtkGraphAnnotationLayersFilter::FillInputPortInformation | ( | int | port, |
| vtkInformation * | info | ||
| ) | [protected, virtual] |
Set the input to vtkGraph and vtkAnnotationLayers.
Reimplemented from vtkPolyDataAlgorithm.
The documentation for this class was generated from the following file:
- dox/Infovis/Core/vtkGraphAnnotationLayersFilter.h
