Hi,
I don't have Qgis front on me but you can use expressions for scale
rendering of labels. ($scale). I think we can also do that with
conditional formats objects properties. You could set object to become
transparent depending on the expression. The below link is for labels but
the same should apply to object formating... (I am pretty sure this is not a
figments of my Imagination.) This way, you could use only one
layer.
http://lists.osgeo.org/pipermail/qgis-user/2013-November/024825.html
Nicolas
On Apr 3, 2016 08:00, "Joe Stepansky [via OSGeo.org]"
<ml-node+s1560n525936...@n6.nabble.com> wrote:
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: [hidden email]
[mailto: [hidden email] ] On Behalf Of Szilard Albert Sent: Sunday, April 03,
2016 7:30 AM To: Joe Stepansky Cc: [hidden email] 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 < [hidden email] >
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 [hidden
email] List info: http://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user -- Szilard
Albert www.dayborogeo.com Phone: +61 7 3889 9505 Mobile: +61 403 860274
_______________________________________________
Qgis-user mailing list
[hidden email]
List info: http://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe:
http://lists.osgeo.org/mailman/listinfo/qgis-user
If you reply to this email, your message will be added to the
discussion below:
http://osgeo-org.1560.x6.nabble.com/Question-about-city-layer-density-tp5259360p5259366.html
To start a new topic under Quantum GIS - User, email
ml-node+s1560n4125267h38@n6.nabble.com
To unsubscribe from Quantum GIS - User, click here .
NAML
--
View this message in context:
http://osgeo-org.1560.x6.nabble.com/Question-about-city-layer-density-tp5259360p5259367.html
Sent from the Quantum GIS - User mailing list archive at Nabble.com._______________________________________________
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
