[Qgis-user] scale dependend representation?

[a.neumann at carto.net]

 Hi Sven

 Each rule can also hold a scale range (min/max). You can have multiple 
 scale ranges per layer.

 In your case, one rule would contain the intended scale range and the 
 filter (like an SQL-WHERE part). In the recent trunk there is also a 
 graphical query builder now.

 The other rule would hold the consequent scale range and a different 
 filter/SQL-WHERE part.

 To enable the rule-based renderer, choose "New Symbology" and then 
 "rule based renderer". There is a button with a green "plus" to add a 
 new rule. In the new dialogue you can then define a scale range and the 
 SQL where part.

 Hope this helps?

 Andreas

 On Tue, 28 Dec 2010 12:39:14 +0100, Sven Bauhan wrote:
> Hi,
>
> I am trying to configure a layer, so that it shows different sized 
> objects
> related to the actual scale of the map. I saw that there is the
> possibility to
> configure a rule based representation. But I could not figure out how
> i can be
> used to act scale based.
> For example I have a layer with airports. When I see the whole layer 
> I just
> want to display the biggest airports. When I zoom into the map the 
> smaller
> airports up to all little heliports shall become visible depending on 
> the
> scale factor.
>
> Can someone tell me how i can configure a scale based representation?
>
> Thanks,
> Sven
> _______________________________________________
> Qgis-user mailing list
> Qgis-user at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/qgis-user