On 27 November 2014 at 09:49, Andreas Neumann <[email protected]> wrote: > Hi, > > I tried the new heatmap renderer in QGIS master. It works nicely. > > I wonder if we could introduce a caching mechanism in a temporary raster > layer to speed up zooming and panning? The idea would be to recreate the > heatmap every time the project is loaded and then cache it while the project > is open. At least as an option. For small data or smaller search radius the > live behaviour would still work well, but for larger data sets of larger > search radius, such a cache raster would speed things up significantly, > especially in a server scenario. > > Would such a cache be technically possible and useful?
I'm not sure about a cache (would have to think about this), but try changing the "Render quality" for the heatmap to "Fastest". That should make a huge difference in the render speed. Nyall _______________________________________________ Qgis-developer mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-developer
