WFS GetFeature and GML data issue

[Kralidis,Tom [Burlington]]

Any other comments here?  Should we things be as they are and put a
warning in the docs?  Or do we want to think about a more elaborate way
to handle this?

..Tom


> -----Original Message-----
> From: Paul Ramsey [mailto:pramsey at refractions.net] 
> Sent: Wednesday, 16 March, 2005 16:46
> To: Kralidis,Tom [Burlington]
> Cc: MAPSERVER-DEV at LISTS.UMN.EDU
> Subject: Re: [UMN_MAPSERVER-DEV] WFS GetFeature and GML data issue
> 
> 
> Hooray for the bounding box, our cruel task master! Let no query go 
> unbounded, and let the masses gnash their teeth, and quake in fear!
> 
> :)
> P
> 
> Kralidis,Tom [Burlington] wrote:
> 
> > 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&se
rvice=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
> 
>