[Geoserver-devel] Adding a new "generic" built-in style

GeoServer GeoServer Developer
1

Hi folks,
as you know, in GeoServer we have four built-in styles, “point”, “line”, “polygon”, “raster”,
that GeoServer automatically associates to layers based on their geometry type.

I was considering adding a fifth built-in one, “generic”, which would paint the right
symbolizer based on the geometry’s nature, to be used when we have no clue of
what geometry type we’re dealing with.

It would be something like this one:
http://docs.geoserver.org/2.6.x/en/user/styling/sld-tipstricks/mixed-geometries.html#geometrytype-function

It would be nice to have a simpler function to use, something like isLinear, isPolygonal, instead
of listing all geometry types… I guess it would still fail for geometry collections though.
Maybe we could have a getPoints/getLines/getPolygons
functions instead, that would be used to extract the right bits from the data own geometry,
which would make it work even with the contents of a geometry collection, tearing it apart
in its constituent pieces.

Opinions?

Cheers
Andrea

···

==

GeoServer Professional Services from the experts! Visit
http://goo.gl/NWWaa2 for more information.

==

Ing. Andrea Aime

@geowolf
Technical Lead

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 339 8844549

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

AVVERTENZE AI SENSI DEL D.Lgs. 196/2003

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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.

2

Sounds like a great idea to me. I’m always seeing questions about why do my polygons come out as points?

Ian

On Wed, 13 May 2015 11:36 am Andrea Aime <andrea.aime@anonymised.com> wrote:

Hi folks,
as you know, in GeoServer we have four built-in styles, “point”, “line”, “polygon”, “raster”,
that GeoServer automatically associates to layers based on their geometry type.

I was considering adding a fifth built-in one, “generic”, which would paint the right
symbolizer based on the geometry’s nature, to be used when we have no clue of
what geometry type we’re dealing with.

It would be something like this one:
http://docs.geoserver.org/2.6.x/en/user/styling/sld-tipstricks/mixed-geometries.html#geometrytype-function

It would be nice to have a simpler function to use, something like isLinear, isPolygonal, instead
of listing all geometry types… I guess it would still fail for geometry collections though.
Maybe we could have a getPoints/getLines/getPolygons
functions instead, that would be used to extract the right bits from the data own geometry,
which would make it work even with the contents of a geometry collection, tearing it apart
in its constituent pieces.

Opinions?

Cheers
Andrea

–

==

GeoServer Professional Services from the experts! Visit
http://goo.gl/NWWaa2 for more information.

==

Ing. Andrea Aime

@geowolf
Technical Lead

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +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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Performance metrics, stats and reports that give you Actionable Insights
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3

May be able to make use of SemanticTypeIdentifier (and “generic:line”, “generic:polygon”, “generic:point”, “generic:text”, “generic:raster”).

···

On 13 May 2015 at 02:35, Andrea Aime <andrea.aime@anonymised.com> wrote:

Hi folks,
as you know, in GeoServer we have four built-in styles, “point”, “line”, “polygon”, “raster”,
that GeoServer automatically associates to layers based on their geometry type.

I was considering adding a fifth built-in one, “generic”, which would paint the right
symbolizer based on the geometry’s nature, to be used when we have no clue of
what geometry type we’re dealing with.

It would be something like this one:
http://docs.geoserver.org/2.6.x/en/user/styling/sld-tipstricks/mixed-geometries.html#geometrytype-function

It would be nice to have a simpler function to use, something like isLinear, isPolygonal, instead
of listing all geometry types… I guess it would still fail for geometry collections though.
Maybe we could have a getPoints/getLines/getPolygons
functions instead, that would be used to extract the right bits from the data own geometry,
which would make it work even with the contents of a geometry collection, tearing it apart
in its constituent pieces.

Opinions?

Cheers
Andrea

–

==

GeoServer Professional Services from the experts! Visit
http://goo.gl/NWWaa2 for more information.

==

Ing. Andrea Aime

@geowolf
Technical Lead

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +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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Widest out-of-the-box monitoring support with 50+ applications
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Deep dive visibility with transaction tracing using APM Insight.
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–
Jody Garnett

4

+1

This is only for vector data, right?

Mauro

···

2015-05-13 11:35 GMT+02:00 Andrea Aime <andrea.aime@anonymised.com>:

Hi folks,
as you know, in GeoServer we have four built-in styles, “point”, “line”, “polygon”, “raster”,
that GeoServer automatically associates to layers based on their geometry type.

I was considering adding a fifth built-in one, “generic”, which would paint the right
symbolizer based on the geometry’s nature, to be used when we have no clue of
what geometry type we’re dealing with.

It would be something like this one:
http://docs.geoserver.org/2.6.x/en/user/styling/sld-tipstricks/mixed-geometries.html#geometrytype-function

It would be nice to have a simpler function to use, something like isLinear, isPolygonal, instead
of listing all geometry types… I guess it would still fail for geometry collections though.
Maybe we could have a getPoints/getLines/getPolygons
functions instead, that would be used to extract the right bits from the data own geometry,
which would make it work even with the contents of a geometry collection, tearing it apart
in its constituent pieces.

Opinions?

Cheers
Andrea

–

==

GeoServer Professional Services from the experts! Visit
http://goo.gl/NWWaa2 for more information.

==

Ing. Andrea Aime

@geowolf
Technical Lead

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +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.

One dashboard for servers and applications across Physical-Virtual-Cloud
Widest out-of-the-box monitoring support with 50+ applications
Performance metrics, stats and reports that give you Actionable Insights
Deep dive visibility with transaction tracing using APM Insight.
http://ad.doubleclick.net/ddm/clk/290420510;117567292;y

Geoserver-devel mailing list
Geoserver-devel@anonymised.comsts.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/geoserver-devel

5

On Thu, May 14, 2015 at 10:03 AM, Mauro Bartolomeoli <
maurobartolomeoli@anonymised.com> wrote:

+1

This is only for vector data, right?

Thankfully we don't have mixed vector/raster data sources yet :slight_smile:

Cheers
Andrea

--

GeoServer Professional Services from the experts! Visit
http://goo.gl/NWWaa2 for more information.

Ing. Andrea Aime
@geowolf
Technical Lead

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +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,
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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.

-------------------------------------------------------

6

On Wed, May 13, 2015 at 11:37 PM, Jody Garnett <jody.garnett@anonymised.com>
wrote:

May be able to make use of SemanticTypeIdentifier (and “generic:line”,
“generic:polygon”, “generic:point”, “generic:text”, “generic:raster”).

I don't think SemanticTypeIdentifier is meant to be used that way. Going
from the javadocs of FeatureTypeStyle:

/**
     * The SemanticTypeIdentifiers is experimental and is intended to be
used
     * to identify, using a community-controlled name(s), what the style is
     * suitable to be used for.
     * For example, a single style may be suitable to use with many
     * different feature types. The syntax of the SemanticTypeIdentifiers
     * string is undefined, but the strings "generic:line_string",
     * "generic:polygon", "generic:point", "generic:text",
     * "generic:raster", and "generic:any" are reserved to indicate
     * that a FeatureTypeStyle may be used with any feature type
     * with the corresponding default geometry type (i.e., no feature
     * properties are referenced in the feature type style).
     * <p>
     * This method will be replaced by a live set semanticIdentifiers() in
2.6.x
     *
     * @return An array of strings representing systematic types which
     * could be styled by this instance.
     *
     * @deprecated this method is replaced by a live set
semanticIdentifiers()
     */

So, it seems to me, we could mark our point style as "generic:point" (and
so on for the others),
the one I'm talking about could be marked as "generic:any" (well sort of,
it would not cover raster).

That said, this is a label to identify what a style is suitable for, not as
a filtering tool inside the style (which was 99% of the
content of my first mail, how do we make the style generic in the first
place)... so an extra semantic
bit, but not a solution. Wondering, do you know anything (dunno, a client)
that's going to use SemanticTypeIdentifier?

Cheers
Andrea

--

GeoServer Professional Services from the experts! Visit
http://goo.gl/NWWaa2 for more information.

Ing. Andrea Aime
@geowolf
Technical Lead

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +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.

-------------------------------------------------------

7

Hi,
pull requests here:
https://github.com/geotools/geotools/pull/842

https://github.com/geoserver/geoserver/pull/1070

Cheers
Andrea

···

On Wed, May 13, 2015 at 11:35 AM, Andrea Aime <andrea.aime@anonymised.com> wrote:

Hi folks,
as you know, in GeoServer we have four built-in styles, “point”, “line”, “polygon”, “raster”,
that GeoServer automatically associates to layers based on their geometry type.

I was considering adding a fifth built-in one, “generic”, which would paint the right
symbolizer based on the geometry’s nature, to be used when we have no clue of
what geometry type we’re dealing with.

It would be something like this one:
http://docs.geoserver.org/2.6.x/en/user/styling/sld-tipstricks/mixed-geometries.html#geometrytype-function

It would be nice to have a simpler function to use, something like isLinear, isPolygonal, instead
of listing all geometry types… I guess it would still fail for geometry collections though.
Maybe we could have a getPoints/getLines/getPolygons
functions instead, that would be used to extract the right bits from the data own geometry,
which would make it work even with the contents of a geometry collection, tearing it apart
in its constituent pieces.

Opinions?

Cheers
Andrea

–

==

GeoServer Professional Services from the experts! Visit
http://goo.gl/NWWaa2 for more information.

==

Ing. Andrea Aime

@geowolf
Technical Lead

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +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.

–

==

GeoServer Professional Services from the experts! Visit
http://goo.gl/NWWaa2 for more information.

==

Ing. Andrea Aime

@geowolf
Technical Lead

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +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.