WFS GetFeature and GML data issue

[Kralidis,Tom [Burlington]]

Hi,

After offline email with Frank (thanks Frank!), it seems that this has
to do with  the fact that my GML document bounding box of the data is
outside of MAP/EXTENT in the mapfile.  If I change my MAP/EXTENT to -180
-90 180 90, I indeed get all the data back.

I guess the question is the behaviour of MAP/EXTENT for a WFS, and if a
LAYER has extents outside the bounds of MAP/EXTENT, what happens when a
client makes a blanket request and expects all the data?  Mind you if
LAYER extents are larger than MAP/EXTENT, this should trigger the
mapfile creator to think about whether they've applied the right
MAP/EXTENT.  On the other hand, how does MAP/EXTENT, something that
historically applies to the default extent of a mapping app for
MapServer CGI, apply to OWS approaches?

At the very least (as Frank suggests) the WFS server howto should warn
about this.  I would post a doc bug for this but not until there is
consensus that the way things behave now are the way they should.

Comments?

..Tom


> -----Original Message-----
> From: Frank Warmerdam [mailto:fwarmerdam at gmail.com] 
> Sent: Wednesday, 16 March, 2005 15:20
> To: Kralidis,Tom [Burlington]
> Cc: MAPSERVER-DEV at lists.umn.edu
> Subject: Re: [UMN_MAPSERVER-DEV] WFS GetFeature and GML data issue
> 
> 
> On Wed, 16 Mar 2005 15:15:02 -0500, Kralidis,Tom [Burlington] 
> <Tom.Kralidis at ec.gc.ca> wrote:
> > Hi,
> > 
> > I have a LAYER defined with a GML document as the native 
> data type.  
> > The GML document has 21 features.
> > 
> > When I run a WFS GetFeature against the entire dataset:
> > 
> > 
> http://devgeo.cciw.ca/cgi-bin/mapserv/ecows?version=1.0.0&service=WFS&
> > re
> > quest=GetFeature&typename=neis&
> > 
> > ...I expect to have returned 21 features.  However the 
> response only 
> > returns 4.
> 
> Tom,
> 
> How does this file look to ogrinfo?  Can you post this GML 
> file for me to inspect?
> 
> Best regards,
> -- 
> ---------------------------------------+----------------------
> ----------
> ---------------------------------------+------
> I set the clouds in motion - turn up   | Frank Warmerdam, 
> warmerdam at pobox.com
> light and sound - activate the windows | http://pobox.com/~warmerdam
> and watch the world go round - Rush    | Geospatial 
> Programmer for Rent
>