[vtkusers] Assigning object a 2D text label

[Mads M. Hansen]

Shankhesh,
thank you that got rid of the error - but did not make the text appear.

.. Mads

2017-08-16 16:10 GMT+02:00 Sankhesh Jhaveri <sankhesh.jhaveri at kitware.com>:
> Hi Mads,
>
> The error originates from the following line:
>
>     interactor->Start();
>
> You don’t need to start the event loop manually with the QVTKInteractor.
> QVTKWidget would use Qt’s event loop.
> Just remove the Start() call.
>
> Hope that helps.
>
> Sankhesh
>
>
> On Wed, Aug 16, 2017 at 7:43 AM Mads M. Hansen <madsmh at gmail.com> wrote:
>>
>> Based on the example at
>> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/Follower
>>
>> I have tried to attach a text label to a number of objets (line
>> 106-149), however
>> when the render method is called  (line 80 in the attached file)
>> I get this message:
>>
>> /xxx/VTK-8.0.0/GUISupport/Qt/QVTKInteractor.cxx, line 147
>> QVTKInteractor (0x1ea3da0): QVTKInteractor cannot control the event loop.
>>
>> and no text appeares on screen. I have been unable to figure out how
>> to sort it out :(
>>
>> .. Mads
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> --
>
> Sankhesh Jhaveri
>
> Sr. Research & Development Engineer | Kitware | (518) 881-4417