On 11/07/2010 6:02 PM, Blammo wrote:
More info,
Using this service call:
https://www.sharedgeo.org/MNGEO-ro/public/ows?SERVICE=wfs&VERSION=1.1.0&REQUEST=getFeature&TYPENAME=layer_3&FILTER=%3CFilter%3E%3CDWithin%3E%3CPropertyName%3EGeometry%3C/PropertyName%3E%3Cgml:Point%3E%3Cgml:coordinates%3E-93.093,44.955%3C/gml:coordinates%3E%3C/gml:Point%3E%3CDistance%20units=%27f%27%3E0.0438%3C/Distance%3E%3C/DWithin%3E%3C/Filter%3E
I tried, FT, FEET, Ft, ft, Feet and f, (this last, the "f" is the only
thing that changed the results, but it only increased the return from
three to six points):
I used the same unit distance of 0.0438, which the majority of time
returns three points. These points in ground units are actually within
~2360ft of each other. I have no idea how the 0.0438 number relates
to that. Is it possibly related to the LAT/LON coordinate system?
This is working enough for me to get through my current stage of
development, I'm just trying to get a handle on how the filter units
are supposed to relate to the map units. Maybe DWithin has a PROJ
option or something??
When the units in unrecognized (like "f" in this case), It should be
ignored the and distance is assumed to be the same units as the gml
element that was part of the query. You can add a projection to the gml
element using the srsrName element.
best regards,
--
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Assefa Yewondwossen
Software Analyst
Email: [email protected]
http://www.dmsolutions.ca/
Phone: (613) 565-5056 (ext 14)
Fax: (613) 565-0925
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