HOLD IT! From what I read, you misunderstood Szilard’s answer. You don’t need different layers per class of city magnitude. Within one layer, you ca ncreate scalable visibilty according to a property (number of inhabitants).
But why not use a simpler way: use an existing background layer (OSM or other) that hat scalable visibility already in the layer? I personaly like "OSM Stamen toner” for its slick black&white rendering Joris > Op 3 apr. 2016, om 14:13 heeft Joe Stepansky <k...@comcast.net> het volgende > geschreven: > > Thank you Szilard. I knew about the scale dependent visibility, but hadn’t > considered creating layers with different size cities and different > visibility levels. That should work just fine. > > Joe > > From: szilard.alb...@gmail.com [mailto:szilard.alb...@gmail.com] On Behalf Of > Szilard Albert > Sent: Sunday, April 03, 2016 7:30 AM > To: Joe Stepansky > Cc: qgis-user@lists.osgeo.org > Subject: Re: [Qgis-user] Question about city layer density > > Joe, > what you seem to need is "scale dependent visibility". > To achieve this, go to "layer properties", "general" tab, and enable "scale > dependent visibility". > Set your scales as preferred. This will show or hide all your cities, > depending on the zoom level, > but you can make different layers with different classes of cities, and > enable/disable their > visibility at different zoom levels. > regards, > Szilard > > On 3 April 2016 at 21:01, Joe Stepansky <k...@comcast.net > <mailto:k...@comcast.net>> wrote: > I’m relatively new to QGIS, so forgive any naivete. > > I’m working on a project displaying severe weather outlooks on a map of the > US. It’s gone very well, but I have one issue. I’m using a layer which > displays city locations and labels on the map. When zooming in to a specific > state, all looks fine. But when I pull back to several states, the map can > look cluttered with city points and labels. > > The labels don’t run into each other, there are just so many of them when I > zoom out. Is there some way to get QGIS to automatically remove “random” > cities (I really don’t care which ones) as the map is zoomed out, and restore > them as the map is zoomed in? > > Right now I’m manually using a filter to remove “excess” cities, but I can’t > seem to find a nice, automated solution. > > Thanks for any help! > > Joe Stepansky > Harrisburg, PA > > _______________________________________________ > Qgis-user mailing list > Qgis-user@lists.osgeo.org <mailto:Qgis-user@lists.osgeo.org> > List info: http://lists.osgeo.org/mailman/listinfo/qgis-user > <http://lists.osgeo.org/mailman/listinfo/qgis-user> > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user > <http://lists.osgeo.org/mailman/listinfo/qgis-user> > > > > -- > Szilard Albert > www.dayborogeo.com <http://www.dayborogeo.com/> > Phone: +61 7 3889 9505 > Mobile: +61 403 860274 > > _______________________________________________ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: http://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user
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