Hi,
When it comes to the time it takes to get all the features instead of just the
bounding box, I would do some measurements and collect some facts before saying
if it is faster to receive some extra data ot to launch some extra service for
ripping off the unnecessary feature geometries.
Do your getFeature by including a parameter &propertyname=the_geom (or whatever
you geometry is named). Then WFS server will send only the geometries and you
have avoided to download the attributes which are unnecessary for you.
GetFeature will contain the boundedBy element in the beginning or the GML
response and that is what you want to get,
Try this with 10 returned features
http://demo.opengeo.org/geoserver/ows?service=WFS&version=1.1.0&request=getfeature&typename=topp:states&maxfeatures=10&propertyname=the_geom
You will receive also the geometries of the features which you do not want but
with a bunch of feature IDs that is not necessarily so huge a amount of bytes
to download even the will be discarded immediately.
-Jukka Rahkonen-
Andrea Aime wrote:
On Thu, Feb 9, 2012 at 9:50 AM, Gottfrid Linge
<[email protected]<mailto:[email protected]>> wrote:
Hi there!
Is it possible to get the bounding box for a featurecollection using WFS in
GeoServer? I have a bunch of feature ids and would like to know the bounding
box so that I can make a WMS request for a map image containing all the
features. I don't want to get all the features in WFS since that will take more
time.
I think there should be a way using WFS Getfeature with resultType = hits and
somehow enabling feature bounding in GeoServer? I only want bounds for the
entire feature collection and not for every feature in the result.
WFS does not support getting just the feature bounds (as far as I know).
There is, however, a GeoServer WPS process that does just that
Cheers
Andrea
--
-------------------------------------------------------
Ing. Andrea Aime
GeoSolutions S.A.S.
Tech lead
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Italy
phone: +39 0584 962313
fax: +39 0584 962313
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