[mapserver-users] querying to getting bounding box coordinates

[Rahkonen Jukka]

Hi,

One alternative is to make first a WFS request with attribute filter for finding the feature and let the client to catch the bounding box from the result.
These examples should work, first is Geoserver and another Mapserver. The latter is pointing to a point layer and therefore I queried two features for getting a reasonable bounding box.

http://sigma.openplans.org:8080/geoserver/wfs?service=wfs&version=1.1.0&request=getfeature&typename=states&maxfeatures=1
http://188.64.1.61/cgi-bin/osm-mapserver_i?service=wfs&version=1.1.0&request=getfeature&typename=POI_pub_restaurant&maxfeatures=2

These are just crude examples without the property filter. Queries can be build also so that they do not return attributes. I hope you'll see the idea and think if it could make sense for your use case.

-Jukka Rahkonen-


-----Alkuperäinen viesti-----
Lähettäjä: mapserver-users-bounces at lists.osgeo.org puolesta: David Hildebrand
Lähetetty: ti 23.11.2010 22:48
Vastaanottaja: mapserver-users at lists.osgeo.org
Aihe: [mapserver-users] querying to getting bounding box coordinates
 
I am running a WMS service with Mapserver in a Windows environment.  I
want to be able to run a non-spatial query on a parcel layer to return
the bounding box (in re-projected coordinates) for a particular parcel.
The bounding box and projection will then be used in a WMS query to
return a map image.

I've never coded server-side functionality with Mapserver so any
suggestions would be welcome.

Thanks to all.


===========================
David V. Hildebrand
Agriculture Financial Services Corporation
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