[Geoserver-users] dynamical change of SLDs and Styles

GeoServer GeoServer User
1

dear all,
I want to let users insert and symbolize their own point data;
to get it I let insert CSV in postGIS. What I need then is to create (via
PHP) for each user a new SLD, taking some parameters previously inserted in
postGIS.
Here begin the problems; even if the Style is previously defined for this
featureType, if I change it externally (via php or ajax/javascript or
whatever), do I have to "reload" the featureType with the "new" style? (the
name hasn't changed!).

I've tried to manually change ( symbol from star to circle) the SLD and
refreshing the mapBuilder viewer it doesn't change; I've to go the GeoServer
interface and refresh the FeatureType.

Do I need to reload the Catalog ??
http://docs.codehaus.org/display/GEOSDOC/Alternative+for+reloading+the+Geoserver+catalog

Thanks!
Pere
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2

Not directly answering your question, but if it's for each user then you
may want to consider using an external SLD, like so

http://geoserver.org/display/GEOSDOC/SLD+Intro+Tutorial?focusedCommentId=1278609#comment-1278609

(Sorry, couldn't find the page where I learned about this feature, maybe
someone else remembers)

-Arne

pere roca wrote:

dear all,
I want to let users insert and symbolize their own point data; to get it I let insert CSV in postGIS. What I need then is to create (via
PHP) for each user a new SLD, taking some parameters previously inserted in
postGIS.
Here begin the problems; even if the Style is previously defined for this
featureType, if I change it externally (via php or ajax/javascript or
whatever), do I have to "reload" the featureType with the "new" style? (the
name hasn't changed!).

I've tried to manually change ( symbol from star to circle) the SLD and
refreshing the mapBuilder viewer it doesn't change; I've to go the GeoServer
interface and refresh the FeatureType.

Do I need to reload the Catalog ??
http://docs.codehaus.org/display/GEOSDOC/Alternative+for+reloading+the+Geoserver+catalog

Thanks!
Pere
  

3

Hi Pere,

Yes, any changes to the underlying SLD file will not take place until they are loaded from disk again, which only occurs when you load the catalog.

I am not sure if you have seen this:

http://geoserver.org/display/GEOSDOC/Alternative+for+reloading+the+Geoserver+catalog

But its really the only way we currently have to do this automatically from a script.

Hope that helps.

-Justin

pere roca wrote:

dear all,
I want to let users insert and symbolize their own point data; to get it I let insert CSV in postGIS. What I need then is to create (via
PHP) for each user a new SLD, taking some parameters previously inserted in
postGIS.
Here begin the problems; even if the Style is previously defined for this
featureType, if I change it externally (via php or ajax/javascript or
whatever), do I have to "reload" the featureType with the "new" style? (the
name hasn't changed!).

I've tried to manually change ( symbol from star to circle) the SLD and
refreshing the mapBuilder viewer it doesn't change; I've to go the GeoServer
interface and refresh the FeatureType.

Do I need to reload the Catalog ??
http://docs.codehaus.org/display/GEOSDOC/Alternative+for+reloading+the+Geoserver+catalog

Thanks!
Pere

--
Justin Deoliveira
The Open Planning Project
jdeolive@anonymised.com

4

  dear Andrea and Justin,
  thanks for your comments. Justin, you are right external SLDs are
the best option in this case. I've created a php script that takes
database info and "echoes" the SLD file; my GetMap request points to
this PHP, passing some parameters.
  A much more simple example of this can be checked in : (you can
change for any US state)
http://edit.csic.es/geoserver/wms?bbox=-127.61,23.73,-64.0,50.59&format=image/png&request=GetMap&width=800&height=317&srs=EPSG:4326&sld=http://edit.csic.es/gmap/states_filter.php?state=Florida

cheers,
Pere

2008/3/13, Justin Deoliveira <jdeolive@anonymised.com>:

Hi Pere,

Yes, any changes to the underlying SLD file will not take place until
they are loaded from disk again, which only occurs when you load the
catalog.

I am not sure if you have seen this:

http://geoserver.org/display/GEOSDOC/Alternative+for+reloading+the+Geoserver+catalog

But its really the only way we currently have to do this automatically
from a script.

Hope that helps.

-Justin

pere roca wrote:
> dear all,
> I want to let users insert and symbolize their own point data;
> to get it I let insert CSV in postGIS. What I need then is to create (via
> PHP) for each user a new SLD, taking some parameters previously inserted in
> postGIS.
> Here begin the problems; even if the Style is previously defined for this
> featureType, if I change it externally (via php or ajax/javascript or
> whatever), do I have to "reload" the featureType with the "new" style? (the
> name hasn't changed!).
>
> I've tried to manually change ( symbol from star to circle) the SLD and
> refreshing the mapBuilder viewer it doesn't change; I've to go the GeoServer
> interface and refresh the FeatureType.
>
> Do I need to reload the Catalog ??
> http://docs.codehaus.org/display/GEOSDOC/Alternative+for+reloading+the+Geoserver+catalog
>
> Thanks!
> Pere

--
Justin Deoliveira
The Open Planning Project
jdeolive@anonymised.com