If you're reading from Postgres, you can use de Extent function of postgis. something like: SELECT EXTENT(*geo_field*)) FROM *geotable * and you'll get de bbox. * * and you can also use de expand function to retrive the bbox expanded in all directions by an amount specified in the sql.
take a look at. *http://postgis.refractions.net/documentation/manual-1.3/ch06.html* * * *Regards,* *Luis * 2010/7/3 Rahkonen Jukka <[email protected]> > Hi, > > Sorry, I do not make code, but you should make your application to send the > getCapabilities request like > > http://localhost/cgi-bin/mapserv.exe?service=WMS&version=1.1.0&request=getCapabilities&map=c > :\ms4w\osm-mapserver.map > > and capture the extents from the returned document which will have this > kind of sections for each layer > > <Layer queryable="0" opaque="0" cascaded="0"> > <Name>landuse_layer5</Name> > <!-- WARNING: Mandatory metadata '..._title' was missing in this context. > --> > <Title>landuse_layer5</Title> > <SRS>EPSG:3067</SRS> > <LatLonBoundingBox minx="-7.18554e+205" miny="-90" > maxx="7.18554e+205" maxy="90" /> > <BoundingBox SRS="EPSG:3067" > minx="-3.40282e+038" miny="-3.40282e+038" > maxx="3.40282e+038" maxy="3.40282e+038" /> > <ScaleHint min="0" max="2494.51923117667" /> > </Layer> > > Please notice that the both bounding boxes in this example are nonsense and > I should obviously check my mapfile for correcting them. > > > -Jukka Rahkonen- > > > > Kiran Bandal wrote: > > > Hi, > > > Thanks for the reply. > > > Just to let you know, I am reading my vector data from PostgreSQL. So, > can I > use WMS GetCapabities request in that case. > > > It would be really helpful if you can paste any sample code for that if > you > have any. > > > Thanks and regards, > > Kiran. > -- > View this message in context: > http://osgeo-org.1803224.n2.nabble.com/How-to-get-full-extent-of-the-map-tp5248342p5250366.html > Sent from the Mapserver - User mailing list archive at Nabble.com. > _______________________________________________ > mapserver-users mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/mapserver-users > > _______________________________________________ > mapserver-users mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/mapserver-users >
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