Hi, I did something somewhat similar to solve #4819 in Jully ("Identify Features" tool is slow with complex/big features) and Matthias asked me to do the same thing for the rubber-band.
In polygon contours, points that are less than a pixel apart from the previous point are not drawn. That improved (dramatically) the rendering speed. Vincent On 12/09/2013 13:03, Sandro Santilli wrote: > On Thu, Sep 12, 2013 at 08:51:43AM +0200, Andreas Neumann wrote: >> Hi, >> >> As I understand, the feature to suppress small/large features would be >> optional. >> >> Another interesting thing would be to simplify features when you zoom >> out. Maybe simplifying would be quicker than rendering thousands of >> unnecessary vertices. Optionally this could also be "outsourced" to the >> database - many databases support simplification on the db level. I >> don't know if it would really speed up things. One would have to test. > I've done this for mapnik and it worked pretty nicely: > http://blog.cartodb.com/post/20163722809/speeding-up-tiles-rendering > > --strk; > _______________________________________________ > Qgis-developer mailing list > Qgis-developer@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/qgis-developer _______________________________________________ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer