[Qgis-user] problem with cartographic label placement

[Andrew Harfoot]

Hi Uwe,

I've not attempted to deal with this issue before, but it occurred to me 
that you might be able to use two labelled layers (duplicates) one 
locked to each position, using the labelling priority weighting to apply 
the ranking. the only issue is that in sparse data areas both labels 
might be drawn, so you may need to ensure that there is sufficient 
overlap between the two positions to prevent this.

Cheers,

Andy

On 19/01/2023 13:14, Uwe via QGIS-User wrote:
> *CAUTION:* This e-mail originated outside the University of Southampton.
>
> Hello Andreas and list,
>
> I am sure I’m not the first one to encounter the problem described 
> below. So I would like to ask again. Maybe someone has an idea?
>
> thanks a lot, the solution from Andreas is working.
>
> But the result is not as desired. I was hoping to be able to define a 
> ranking of placement alternatives. That is (in case of ‘B,R‘): place 
> all the labels at the bottom and only if there is a conflict (overlap) 
> with something else place a label at right.
>
> But what I get is: most oft he labels are placed right, even without 
> overlap problems (although I put ‘R‘ at the second place of the list). 
> And only a few labels are placed at bottom.
>
> However, the overlap problem is solved.
>
> Is there something I could improve?
>
> Thank you and best regards, Uwe
>
> *Von:* Andreas Neumann <andreas at qgis.org>
> *Gesendet:* Donnerstag, 12. Januar 2023 22:18
> *An:* gisfisch at t-online.de
> *Cc:* qgis-user <qgis-user at lists.osgeo.org>
> *Betreff:* Re: [Qgis-user] problem with cartographic label placement
>
> Hi Uwe,
>
> I just tried it. 'B,BR' worked for me. Just don't use quotes before 
> and after the separator.
>
> Greetings,
>
> Andreas
>
> On Thu, 12 Jan 2023 at 22:02, Uwe via QGIS-User 
> <qgis-user at lists.osgeo.org> wrote:
>
>     Hello list,
>
>     for cartographic label placement, according to the help docs it
>     should be possible to define position priorities in a ranking.
>
>     But when I open the editor and enter a comma separated list like:
>
>     ‘B‘ , ‘BR‘
>
>     I get an error message. Entering just one value it works. But that
>     doesn’t make sense because I need at least two values to let the
>     label move when it collides with a feature.
>
>     What can be wrong with my input? I use 3.28.
>
>     Thanks a lot for help.
>
>     Uwe
>
>     _______________________________________________
>     QGIS-User mailing list
>     QGIS-User at lists.osgeo.org
>     List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>     <https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.osgeo.org%2Fmailman%2Flistinfo%2Fqgis-user&data=05%7C01%7Cajph%40geodata.soton.ac.uk%7C7525097e62754e2b0c9808dafa1f1616%7C4a5378f929f44d3ebe89669d03ada9d8%7C0%7C0%7C638097308670905094%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=f91qzwHtiXrG4jyidtaQkfeK1kD1MKNpZH8SSxZ9ZT8%3D&reserved=0>
>     Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>     <https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.osgeo.org%2Fmailman%2Flistinfo%2Fqgis-user&data=05%7C01%7Cajph%40geodata.soton.ac.uk%7C7525097e62754e2b0c9808dafa1f1616%7C4a5378f929f44d3ebe89669d03ada9d8%7C0%7C0%7C638097308670915048%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=Wu6%2Fh%2F3mcCLNt4fgXGfqA8uFzAObeRfK%2BR%2FFHldwr3s%3D&reserved=0>
>
>
>
> -- 
>
>
> --
> Andreas Neumann
>
> QGIS.ORG 
> <https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fqgis.org%2F&data=05%7C01%7Cajph%40geodata.soton.ac.uk%7C7525097e62754e2b0c9808dafa1f1616%7C4a5378f929f44d3ebe89669d03ada9d8%7C0%7C0%7C638097308670925016%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=FDpGBxJCZtkl2dRxkIhEONOvbZDbW5EsbrQf%2B9AZAvM%3D&reserved=0> 
> board member (treasurer)
>
>
> _______________________________________________
> QGIS-User mailing list
> QGIS-User at lists.osgeo.org
> List info:https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe:https://lists.osgeo.org/mailman/listinfo/qgis-user


-- 
Andy Harfoot

Skype: gdi_ajph
Teams:ajph at soton.ac.uk

GeoData Institute
University of Southampton
Southampton
SO17 1BJ

www.geodata.soton.ac.uk
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20230123/73fb6522/attachment.htm>