Re: [Geoserver-users] WFS getFeature and dwithin

[Justin D. <jde...@op...>]

Hi Christopher,

This post on the geotools users list will be of interest to you:

http://www.mail-archive.com/geo...@li.../msg04131.html

The short of it is that distance only really works in projected 
coordinate systems where things are flat.

-Justin

Christopher Condit wrote:
> I'm trying to query the GeoServer WFS service for all point records
> within some distance of a given point. My CQL_FILTER clause ends up
> looking something like:
> &CQL_FILTER=name LIKE 'foo' and DWithin(the_geom, POINT(-84.375
> 26.4312280645), 10, kilometers)
> 
> This, of course, does not work because I just found this:
> http://jira.codehaus.org/browse/GEOS-937
> 
> So I presume that the units in this case (epsg:4326) are dd. But I'm
> still getting very strange query results (returning huge numbers of
> results in some cases, and none in others). So I'm wondering if there's
> a preferred way to write this query in GeoServer...
> 
> Thanks,
> -Chris
> 
> -------------------------------------------------------------------------
> This SF.net email is sponsored by the 2008 JavaOne(SM) Conference 
> Don't miss this year's exciting event. There's still time to save $100. 
> Use priority code J8TL2D2. 
> http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
> _______________________________________________
> Geoserver-users mailing list
> Geo...@li...
> https://lists.sourceforge.net/lists/listinfo/geoserver-users
> 
> !DSPAM:4007,4818b85174635219720167!
> 


-- 
Justin Deoliveira
The Open Planning Project
jde...@op...