thanks Martin, I will consider both the solutions. Wouldn't it be usefull to have this implemented, at least as an option?
giovanni 2010/8/3 Martin Dobias <[email protected]>: > Hi Giovanni > > On Fri, Jul 30, 2010 at 6:34 PM, G. Allegri <[email protected]> wrote: >> In my application I need to let the user to select (from a table) and >> zoom to a specified feature >> The layer is made of a dense cloud of points, so even if the point get >> selected it happens to be hidden by other (unselected) points. >> Is it possible to ask the renderer to put the selected points on top >> of the others? > > I'm not aware of any straightforward way. > > You could create a temporary layer (using memory provider) and put the > selected features into it. If the temporary layer will be placed on > top of the original layer, the user will always see the selected > features. > > If using new symbology, you could implement a custom renderer which > would delay rendering of the selected features and render them at last > in stopRender() method. > > Regards > Martin > _______________________________________________ Qgis-developer mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-developer
