[vtkusers] Pick From vtkLineSource added to vtkAppendPolyData

[Alex Malyushytskyy]

vtkPropPicker works only with actors.
vtkCellPicker will allow you to identify which cell was picked  in polydata

http://www.vtk.org/Wiki/VTK/Examples/Cxx/Picking/CellPicking


Alex



On Wed, Sep 11, 2013 at 9:50 AM, Bhanu Hariharan <bhanu at petrotel.com> wrote:

> Hello,
>
>
> I was wondering if someone can help me on how to pick Lines added to a
> vtkAppendPolyData.
> before adding to Mapper and Actor.
>
> I saw some example where a linesource was added directly to Mapper and
> Actor.
>
> But I have several lines and having an actor for each one will slow things
> down considerably. So I use vtkAppendPolyData and add all line sources to
> it. I then pass the vtkAppendPolyData thorugh a vtktransform and vtktube
> filter before adding to mapper and actor.
>
> Can someone please tell me if its possible to use vtkPropPicker or
> VtkPicker with vtkAppendPolyData.
> Also once picked how can I tell which line was picked. Can I assign a
> global Id to each line?
>
> Thanks,
> Bhanu
>
>
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