[vtk-developers] Threading Timer Issue

[Jean-Christophe Fillion-Robin]

Hi Taru,

If possible, it would be helpful if you could share some code (gist or
github?)

For Qt timer based approach you could probably look at the following [1]

Hth
Jc

[1]
https://github.com/commontk/CTK/blob/master/Libs/Visualization/VTK/Widgets/ctkVTKAbstractView.cpp#L66


On Fri, May 4, 2012 at 1:39 PM, Taru S <twrkmail at gmail.com> wrote:

> Hello All,
>
> I have integrated an external device with VTK. When interacting using the
> external device things work fine for a few seconds but the attempt to
> re-render the GUI (qt based) window fail after a while.
>
> I am using a vtk timer based approach to re-render the window in the main
> application thread and use Mutex locks to set and unset the variables in
> the device and application threads.
>
> The issue seems to occur when the device thread attempts to read the
> variable that is locked for update by the application thread. The prog
> throws a Qt exception at this point.
>
> Could someone please help me with this issue and suggest a workaround. I
> tried creating a Qt based timer as well but for some reason it is not
> getting invoked.
>
> Your help will be greatly appreciated.
>
> Thanks,
> Tanu
>
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