[vtkusers] Assigning object a 2D text label

[Sankhesh Jhaveri]

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
<http://www.kitware.com/> | (518) 881-4417
​
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