[vtkusers] Pick From vtkLineSource added to vtkAppendPolyData

[Alex Malyushytskyy]

And avoid posting  questions at  <vtk-developers at vtk.org> unless question
is related to vtk development.
Regards,
        Alex


On Wed, Sep 11, 2013 at 5:46 PM, Alex Malyushytskyy <alexmalvtk at gmail.com>wrote:

>
> 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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