[vtkusers] Questions about vtkGraphLayoutView

[David Doria]

>> 3. The interaction/selection style I'm using is based on
>> vtkInteractorStyleRubberBand2D and this is nice for making a rectangular
>> selection in the graph. However, I want to make a freeform lasso
>> selection,
>> i.e., draw a closed curve around the nodes I want to select (and, thus,
>> not
>> be limited to rectangular selection only). Is there a lasso
>> interaction/selection style I have missed or are there any examples of how
>> to implement this myself?
>
>
> I am not aware of lasso selection implemented in VTK.

It sounds like this might be pretty close to a lasso selection?

http://www.vtk.org/doc/nightly/html/classvtkImplicitSelectionLoop.html#details

Perhaps you could use
http://www.vtk.org/Wiki/VTK/Examples/Cxx/Widgets/ContourWidget to
produce the points for it?

If you look into vtkImplicitSelectionLoop, it would be great if you
could add an example to the wiki.

David