[Qgis-user] Styling polygon borders: preventing double rendering between polygons

[Karl Magnus Jönsson]

Hi!
I had a similar problem. I’ve made a view ( in PostGIS) to transform the boundaries to lines and remove the duplicate lines. Should be doable in virtual layers as well. Quite complicated SQL since I have several different types of lines depending on the attributes.

Karl-Magnus Jönsson

Från: Qgis-user <qgis-user-bounces at lists.osgeo.org> För Christoph Jung
Skickat: den 11 juni 2020 13:11
Till: Jorge Gustavo Rocha <jgr at geomaster.pt>
Kopia: qgis-user at lists.osgeo.org
Ämne: Re: [Qgis-user] Styling polygon borders: preventing double rendering between polygons

Hi Jorge,

If it is just a visual thing, than you could transform your polygons to lines and delete the duplicate geometries.

Sincerely,
Christoph


Am 11.06.2020 um 12:45 schrieb Jorge Gustavo Rocha <jgr at geomaster.pt<mailto:jgr at geomaster.pt>>:

Hi QGisers,
I'm trying to style a polygon layer (districts) using a marker line (using the '+' sign). It works well for lines.
When I use it in polygons, the outer line is ok, but the lines between polygons are rendered twice.
To make this question more clear, I've attached the following print screen: https://nextcloud.geomaster.pt/index.php/s/e3ztdJ894RCf9j6
The line near the sea is rendered just once. The line going to east between the polygons is rendered twice. We can see double '+'  on that line.
How do I render all the lines exactly the same way, without this "double" rendering between polygons?
Regards,
Jorge Gustavo
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