[Qgis-developer] WMS-GetMap images: cached or not?

[Richard Duivenvoorde]

Hi Dev's,

Trying out some WMS-time based services in combi with TimeManager.

My question is if WMS-images (based on URL's) are cached or not.

While I see that there is a cache for the capabilities, and for tiles
for tile-based services. Looking at QGIS behaviour and searching in code
[0] I do not see a caching mechanisme for WMS images.

For timebased series this would be great to have: first time you
run/play a time-interval it is off course slow because of the network
requests, but replaying would be very fast.

So Question: am I doing something wrong here?
Or is it 'not implemented' yet?

To test read: http://planet.qgis.org/planet/tag/spatio-temporal%20data/
And use the following service to check Katrina:
http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r-t.cgi
and start/stop times:
2005-08-29T03:00:00Z
2005-08-30T03:00:00Z

Regards,

Richard Duivenvoorde


[0]
https://github.com/qgis/QGIS/blob/master/src/providers/wms/qgswmsprovider.cpp