[Geoserver-users] GetFeatureInfo on nested layer groups

GeoServer GeoServer User
1

Hello,

i have a layer group containing 6 other layer groups that don’t overlap.

Now i start a getFeatureInfo request on my base layer group with a point that lies in one of my sub-layer groups and i can see in the log that all layers in all layer groups are queried.

Is this expected behavior? Or is there a way to configure geoserver that only the layers of the affected layer group are queried?

Regards,

Dirk Wilhelm

2

On Thu, Mar 6, 2014 at 9:51 AM, Wilhelm, Dirk <wilhelm@anonymised.com> wrote:

Hello,

i have a layer group containing 6 other layer groups that don't overlap.

Now i start a getFeatureInfo request on my base layer group with a point
that lies in one of my sub-layer groups and i can see in the log that all
layers in all layer groups are queried.

Is this expected behavior? Or is there a way to configure geoserver that
only the layers of the affected layer group are queried?

From your description, this is expected, in WMS a group is just a shortcut

way to get all the layers
that are contained in it, regardless of the nesting levels (basically the
sub-tree is flattened in
a long list)

Cheers
Andrea

--
== Our support, Your Success! Visit http://opensdi.geo-solutions.it 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
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-------------------------------------------------------

3

That said you are welcome to look at the GetFeatureInfo implementation and check the query against the bounds of each layer … and ignore queries that have no chance of hitting content.

The code is here:

···

Jody Garnett

On Thu, Mar 6, 2014 at 8:03 PM, Andrea Aime <andrea.aime@anonymised.com> wrote:

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On Thu, Mar 6, 2014 at 9:51 AM, Wilhelm, Dirk <wilhelm@anonymised.com> wrote:

Hello,

i have a layer group containing 6 other layer groups that don’t overlap.

Now i start a getFeatureInfo request on my base layer group with a point that lies in one of my sub-layer groups and i can see in the log that all layers in all layer groups are queried.

Is this expected behavior? Or is there a way to configure geoserver that only the layers of the affected layer group are queried?

From your description, this is expected, in WMS a group is just a shortcut way to get all the layers
that are contained in it, regardless of the nesting levels (basically the sub-tree is flattened in
a long list)

Cheers
Andrea

–

== Our support, Your Success! Visit http://opensdi.geo-solutions.it 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