Undefined behavior for polygon labels with line placement, filling that hole

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Undefined behavior for polygon labels with line placement, filling that hole

geowolf
Hi,
currently the rendering code does not notice "line placement" at all when the 
geometry is a polygon.
The specification does not seem to say anything either.

I've noticed this while working on TextSymbolizer export from QGIS, and over there
they allow to label the perimeter of a polygon instead of its centroid.

So... given that we have no current useful behavior for that, how about we extract
the polygon outline and label that as a line, when a line placement is specified?

Anyone sees problems with filling the current behavior hole this way?

Regards,

Andrea Aime

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Ing. Andrea Aime
@geowolf
Technical Lead

GeoSolutions S.A.S.
Via di Montramito 3/A
55054  Massarosa (LU)
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39  339 8844549

http://www.geo-solutions.it
http://twitter.com/geosolutions_it

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The information in this message and/or attachments, is intended solely for the attention and use of the named addressee(s) and may be confidential or proprietary in nature or covered by the provisions of privacy act (Legislative Decree June, 30 2003, no.196 - Italy's New Data Protection Code).Any use not in accord with its purpose, any disclosure, reproduction, copying, distribution, or either dissemination, either whole or partial, is strictly forbidden except previous formal approval of the named addressee(s). If you are not the intended recipient, please contact immediately the sender by telephone, fax or e-mail and delete the information in this message that has been received in error. The sender does not give any warranty or accept liability as the content, accuracy or completeness of sent messages and accepts no responsibility  for changes made after they were sent or for other risks which arise as a result of e-mail transmission, viruses, etc.



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Re: Undefined behavior for polygon labels with line placement, filling that hole

Ian Turton
That seems like a reasonable idea. Plus anything that increases GeoServer QGIS interoperability is a good thing.

Ian

On 5 July 2017 at 18:34, Andrea Aime <[hidden email]> wrote:
Hi,
currently the rendering code does not notice "line placement" at all when the 
geometry is a polygon.
The specification does not seem to say anything either.

I've noticed this while working on TextSymbolizer export from QGIS, and over there
they allow to label the perimeter of a polygon instead of its centroid.

So... given that we have no current useful behavior for that, how about we extract
the polygon outline and label that as a line, when a line placement is specified?

Anyone sees problems with filling the current behavior hole this way?

Regards,

Andrea Aime

==
GeoServer Professional Services from the experts! Visit http://goo.gl/it488V for more information.
==

Ing. Andrea Aime
@geowolf
Technical Lead

GeoSolutions S.A.S.
Via di Montramito 3/A
55054  Massarosa (LU)
phone: <a href="tel:+39%200584%20962313" value="+390584962313" target="_blank">+39 0584 962313
fax: <a href="tel:+39%200584%20166%200272" value="+3905841660272" target="_blank">+39 0584 1660272
mob: <a href="tel:+39%20339%20884%204549" value="+393398844549" target="_blank">+39  339 8844549

http://www.geo-solutions.it
http://twitter.com/geosolutions_it

AVVERTENZE AI SENSI DEL D.Lgs. 196/2003

Le informazioni contenute in questo messaggio di posta elettronica e/o nel/i file/s allegato/i sono da considerarsi strettamente riservate. Il loro utilizzo è consentito esclusivamente al destinatario del messaggio, per le finalità indicate nel messaggio stesso. Qualora riceviate questo messaggio senza esserne il destinatario, Vi preghiamo cortesemente di darcene notizia via e-mail e di procedere alla distruzione del messaggio stesso, cancellandolo dal Vostro sistema. Conservare il messaggio stesso, divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo, od utilizzarlo per finalità diverse, costituisce comportamento contrario ai principi dettati dal D.Lgs. 196/2003.

The information in this message and/or attachments, is intended solely for the attention and use of the named addressee(s) and may be confidential or proprietary in nature or covered by the provisions of privacy act (Legislative Decree June, 30 2003, no.196 - Italy's New Data Protection Code).Any use not in accord with its purpose, any disclosure, reproduction, copying, distribution, or either dissemination, either whole or partial, is strictly forbidden except previous formal approval of the named addressee(s). If you are not the intended recipient, please contact immediately the sender by telephone, fax or e-mail and delete the information in this message that has been received in error. The sender does not give any warranty or accept liability as the content, accuracy or completeness of sent messages and accepts no responsibility  for changes made after they were sent or for other risks which arise as a result of e-mail transmission, viruses, etc.



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