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Re: [udig-devel] general purpose client to WFS 1.1
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Jens,
The WFS client code (most of it, anyways) resides in the Geotools
code base. The main issue with moving to WFS 1.1 is not the WFS 1.1
specification, it's the GML 3.1.1 specification. So if you're
interested in helping, hop over the the geotools side of the fence
and start talking there about what needs to be done for GML 3.1.1
support. Some of it is already being done by the geoserver team
(working in the geotools code base (we really should have a simple
architecture diagram at the top of our developers page)) for an
opengis project they are on right now. But it is a limited subset of
GML3.
Sorry to give you a research project when all you wanted was a simple
answer!
P
On 2-Nov-06, at 6:03 AM, Jens Stutte wrote:
Hi again,
I found this mail with regard to the WFS 1.1 question, are there
any updates to the stated?
Best regards,
Jens
On 10 Oct 2006 at 1:30, Jody Garnett wrote:
Upendra wrote:
Hello everybody,
I am new to UDIG. I want to use udig with WFS. I was able to
use it
with WFS 1.0, but not with WFS 1.1. My question:- Is it even
possible
to develop general purpose client for any WFS 1.1?
Of course. We did one for the OWS-3 project that you can take a
look at,
we did not roll it out into the codebase as we only managed to parse
points as far as geometry went. But now geotools has picked up the
work
so we could do better - just need time / money / volunteers
(preferably
all three)
What if my WFS schema is very complicated?
This is why we had to develop our own parser (our WFS 1.0 support is
done with the generation 3 geotools parser, the WFS 1.1 mentioned
above
using generation 4). The feature model used has also been a blocker,
but that has gotten some research attention since this time last
year,
now we need some development time to bring it home. Currently the
ground
work will be ready to do this for next year, but we make work on
funding
for that :-)
I got a geotools steering document to present to their project
management committee about that.
In case of WFS 1.0 schemas are usually very simple, one just has to
look at a geometry field in the schema and use it for rendering.
What
if there are multiple geometry fields or if there is topological
complex instead of a geometry field? Is it possible to create a
general purpose client without knowing the WFS application schema
beforehand? Any answers will be greatly appreciated. Thank you.
Sure, and we do this. So far we have been limited by data sources
presenting interesting content (so our current tools have not been
tested with more then one geometry field per feature etc...).
Um I have lots of links to this work ... what are you interested in?
Anything beyond it can be done?
Cheers,
Jody
_______________________________________________
User-friendly Desktop Internet GIS (uDig)
http://udig.refractions.net
http://lists.refractions.net/mailman/listinfo/udig-devel
--
Jens Stutte, Project Manager
Planetek Italia srl
Via Massaua, 12 - 70123 Bari, Italy
Tel. +39 080 5343750
Fax +39 080 5340280
e-mail : stutte@xxxxxxxxxxx
web : http://www.planetek.it
_______________________________________________
User-friendly Desktop Internet GIS (uDig)
http://udig.refractions.net
http://lists.refractions.net/mailman/listinfo/udig-devel
