[Qgis-user] FW: QGIS crashes when using mouse wheel to zoom in and out of WMTS services

[Matthias Kuhn]

Hi Chris

On 02/02/2016 09:28 AM, Chris Buckmaster wrote:
>
> Does anyone happen to have any ideas on the below?
>
>  
>
> Hi
>
>  
>
> I am finding that QGIS (v 2.12.1) keeps crashing when trying to use
> the mouse wheel to zoom in and out of WMTS services.
>
>  
>
> If I just scroll it once, it is fine as it will scroll in or out to
> the next scale level. But if I want to quickly zoom right into a
> location and I try and immediately scroll 4 or 5 times, the WMTS does
> not redraw and QGIS just freezes.
>
>  
>
> I am not sure if others have this problem? I know in past versions you
> were not able to scroll into levels before the next level had been
> rendered, something we might need to look at going back to if there is
> a problem with scrolling in and out similar to web maps.
>
>  
>
> Thanks, Chris
>

Did you try with the latest master (dev/nightly/testing) version of QGIS?

I think some work has been done concerning multithreading issues with
network requests recently. If this is still not resolved, it would be
great to have this confirmed. Crashes are really bad bugs and it would
be great to solve this before the next release.

Best regards

-- 
Matthias Kuhn
OPENGIS.ch - https://www.opengis.ch
Spatial • (Q)GIS • PostGIS • Open Source

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