GSIP 130 - Layer Group Scale Ranges
https://github.com/geoserver/geoserver/wiki/GSIP-130
Extend the LayerGroupInfo interface and its implementations to store a
range of scales for each layer the same way as is done for style.
I brought this up at a PSC meeting a few weeks ago.
--
Kevin Michael Smith
smithkm@anonymised.com
Thanks Kevin, the approach you describe is actually a “best practice” for changing between generalized datasets within a layer group. After your change the layers would be able to use the same style which is nice.
+1
On 10 July 2015 at 12:53, Kevin Smith <smithkm@anonymised.com> wrote:
GSIP 130 - Layer Group Scale Ranges
https://github.com/geoserver/geoserver/wiki/GSIP-130
Extend the LayerGroupInfo interface and its implementations to store a
range of scales for each layer the same way as is done for style.I brought this up at a PSC meeting a few weeks ago.
–
Kevin Michael Smith
smithkm@anonymised.com
Don’t Limit Your Business. Reach for the Cloud.
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Jody Garnett
On Fri, Jul 10, 2015 at 11:10 PM, Jody Garnett <jody.garnett@anonymised.com>
wrote:
Thanks Kevin, the approach you describe is actually a "best practice" for
changing between generalized datasets within a layer group. After your
change the layers would be able to use the same style which is nice.
No objection, but I would not call that a "best practice", it's cleaner to
use the pre-generalized store and hide the fact there are the different
data sets behind
a single layer (assuming the meaning of the features did not change, but
just their representation).
Cheers
Andrea
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
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Agreed about pregeneralized store it would be nice to make a UI for that one.
On Fri, Jul 10, 2015 at 11:10 PM, Jody Garnett <jody.garnett@anonymised.com> wrote:
Thanks Kevin, the approach you describe is actually a “best practice” for changing between generalized datasets within a layer group. After your change the layers would be able to use the same style which is nice.
No objection, but I would not call that a “best practice”, it’s cleaner to use the pre-generalized store and hide the fact there are the different data sets behind
a single layer (assuming the meaning of the features did not change, but just their representation).
Cheers
Andrea
–
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.
And btw, +0
Cheers
Andrea
On Sat, Jul 11, 2015 at 3:00 PM, Andrea Aime <andrea.aime@anonymised.com> wrote:
–
On Fri, Jul 10, 2015 at 11:10 PM, Jody Garnett <jody.garnett@anonymised.com> wrote:
Thanks Kevin, the approach you describe is actually a “best practice” for changing between generalized datasets within a layer group. After your change the layers would be able to use the same style which is nice.
No objection, but I would not call that a “best practice”, it’s cleaner to use the pre-generalized store and hide the fact there are the different data sets behind
a single layer (assuming the meaning of the features did not change, but just their representation).
Cheers
Andrea
–
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
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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
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I can certainly see the value in this - it is a common one for use where we have geological maps at 1:50,000, 1:250,000, and 1:1,000,000.The generalization that goes on between scales is not trivial and certainly not automatic. It would be nice to have them in one service. I am interested in the Andrea's comments about a pre-generalized store. Can this be elaborated please? I assume this is something that wouldnt work of pretty dynamic layers?
--
Phil Scadden, Senior Scientist GNS Science Ltd 764 Cumberland St, Private Bag 1930, Dunedin, New Zealand Ph +64 3 4799663, fax +64 3 477 5232
Notice: This email and any attachments are confidential.
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Gere is the link: http://docs.geotools.org/latest/userguide/library/data/pregeneralized.html
You can configure it to swap between tables (or between geometry columns) based on scale. Swapping between tables is nice as when zoomed out you can use a smaller dataset. But even swapping between geometry columns is useful as you can use geometry with less points speeding everthing up.
The SLD does not know what is going on; it just gets different sets of geometry to draw.
It works great, something to keep in mind the next time you do performance optimization for GeoServer.
On 12 July 2015 at 14:32, Phil Scadden <p.scadden@anonymised.com> wrote:
I can certainly see the value in this - it is a common one for use where
we have geological maps at 1:50,000, 1:250,000, and 1:1,000,000.The
generalization that goes on between scales is not trivial and certainly
not automatic. It would be nice to have them in one service. I am
interested in the Andrea’s comments about a pre-generalized store. Can
this be elaborated please? I assume this is something that wouldnt work
of pretty dynamic layers?–
Phil Scadden, Senior Scientist GNS Science Ltd 764 Cumberland St,
Private Bag 1930, Dunedin, New Zealand Ph +64 3 4799663, fax +64 3 477 5232Notice: This email and any attachments are confidential.
If received in error please destroy and immediately notify us.
Do not copy or disclose the contents.
Don’t Limit Your Business. Reach for the Cloud.
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–
Jody Garnett
+1
On Mon, Jul 13, 2015 at 7:32 AM, Jody Garnett <jody.garnett@anonymised.com> wrote:
Gere is the link: http://docs.geotools.org/latest/userguide/library/data/pregeneralized.html
You can configure it to swap between tables (or between geometry columns) based on scale. Swapping between tables is nice as when zoomed out you can use a smaller dataset. But even swapping between geometry columns is useful as you can use geometry with less points speeding everthing up.
The SLD does not know what is going on; it just gets different sets of geometry to draw.
It works great, something to keep in mind the next time you do performance optimization for GeoServer.
Don’t Limit Your Business. Reach for the Cloud.
GigeNET’s Cloud Solutions provide you with the tools and support that
you need to offload your IT needs and focus on growing your business.
Configured For All Businesses. Start Your Cloud Today.
https://www.gigenetcloud.com/
Geoserver-devel mailing list
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Ing. Alessio Fabiani
@alfa7691
Founder/Technical Lead
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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.
–
Jody Garnett
On 12 July 2015 at 14:32, Phil Scadden <p.scadden@anonymised.com> wrote:
I can certainly see the value in this - it is a common one for use where
we have geological maps at 1:50,000, 1:250,000, and 1:1,000,000.The
generalization that goes on between scales is not trivial and certainly
not automatic. It would be nice to have them in one service. I am
interested in the Andrea’s comments about a pre-generalized store. Can
this be elaborated please? I assume this is something that wouldnt work
of pretty dynamic layers?–
Phil Scadden, Senior Scientist GNS Science Ltd 764 Cumberland St,
Private Bag 1930, Dunedin, New Zealand Ph +64 3 4799663, fax +64 3 477 5232Notice: This email and any attachments are confidential.
If received in error please destroy and immediately notify us.
Do not copy or disclose the contents.
Don’t Limit Your Business. Reach for the Cloud.
GigeNET’s Cloud Solutions provide you with the tools and support that
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Configured For All Businesses. Start Your Cloud Today.
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+0
Ing. Simone Giannecchini
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-------------------------------------------------------
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D.Lgs. 196/2003.
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On Fri, Jul 10, 2015 at 9:53 PM, Kevin Smith <smithkm@anonymised.com> wrote:
GSIP 130 - Layer Group Scale Ranges
https://github.com/geoserver/geoserver/wiki/GSIP-130
Extend the LayerGroupInfo interface and its implementations to store a
range of scales for each layer the same way as is done for style.I brought this up at a PSC meeting a few weeks ago.
--
Kevin Michael Smith
smithkm@anonymised.com------------------------------------------------------------------------------
Don't Limit Your Business. Reach for the Cloud.
GigeNET's Cloud Solutions provide you with the tools and support that
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On 13/07/2015 5:32 p.m., Jody Garnett wrote:
Gere is the link: http://docs.geotools.org/latest/userguide/library/data/pregeneralized.html
You can configure it to swap between tables (or between geometry columns) based on scale. Swapping between tables is nice as when zoomed out you can use a smaller dataset. But even swapping between geometry columns is useful as you can use geometry with less points speeding everthing up.
The SLD does not know what is going on; it just gets different sets of geometry to draw.
It works great, something to keep in mind the next time you do performance optimization for GeoServer.
Thanks Jody. I hadnt seen that plugin and I can certainly use it for switching between tables. (For the geology case, smaller polygons are eliminated as scale increases).
What about case where detailed geometry exists for some geometry but all? ie, I would like logic like " geom = (geom_20!=null)?geom_20:geom_50"
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+1.
One question: does it matter that your layers+visibleScales example uses semicolon to separate list items, and not comma as for other KVP parameters such as "bbox"? Everywhere else I see "layers" with a comma. I see that some other vendor parameters are documented as using semicolon.
Kind regards,
Ben.
On 11/07/15 07:53, Kevin Smith wrote:
GSIP 130 - Layer Group Scale Ranges
https://github.com/geoserver/geoserver/wiki/GSIP-130
Extend the LayerGroupInfo interface and its implementations to store a
range of scales for each layer the same way as is done for style.I brought this up at a PSC meeting a few weeks ago.
--
Ben Caradoc-Davies <ben@anonymised.com>
Director
Transient Software Limited <http://transient.nz/>
New Zealand