Martin, maybe render caching should be turned/forced on by default on qgis master builds right now so there can be a higher of ppl using it and reporting possible regressions? If it's now smooth and problem-free following mtr merge, it can be left on by default for final 2.4 release. On 3 Mar 2014 19:43, "Martin Dobias" <wonder...@gmail.com> wrote:
> Hi Paolo > > On Mon, Mar 3, 2014 at 7:18 PM, Paolo Cavallini <cavall...@faunalia.it> > wrote: > > Il 27/02/2014 03:17, Martin Dobias ha scritto: > > > >> Paolo: make sure you have render caching turned on. Deactivating (and > >> activating again) a layer should be immediate. Of course, if you pan > >> the map or zoom in/out, everything will be re-rendered. > > > > Hi Martin, > > thanks for this. It helps, but my question remains: why should we reload > > data, just to *disable* a layer from the legend? > > In order to remove a layer from a map, you simply need to redraw the > whole map _without_ that layer. The render caching helps by recording > image of each layer separately, so removing a layer from legend > requires just combining the rendered images together without the > removed one - without having to redraw also other layers. Maybe we > should just make render caching default. > > Regards > Martin > _______________________________________________ > Qgis-developer mailing list > Qgis-developer@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/qgis-developer >
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