Hi Larry,
We have used OpenJUMP for web GIS in a pilot project this summer. That's why
OpenJUMP wfs-plugin was developed.
The idea behind the pilot was to get background imagery (topo maps and aerial
photos) through WMS and original vectors from the central GIS database through
WFS. WFS should be a standard but in real life all servers and clients do not
necessarily work together, so the wfs-plugin was developed against GeoServer
1.5 and WFS version 1.0 (non-transactional).
We wished to use OpenJUMP as web GIS editor because we need to do things like
split and merge polygons and edit neighbouring features together. Keeping
topology clean is essential, and for all these things OJ is very good tool.
We did not use WFS-T for returning the edited data back to the database for
couple of reasons. For example, we need to do some validity checks for the
returned data and we had ready made database procedures already for doing that.
So our solution was to read source data through WFS on a base layer, make an
editable copy or that, and after edits find the differences with OJ spatial
operations. Finally the editet features were stored into shapefile that was
sent further by using our existing route.
I could well imagine that OpenJUMP downloaded by Java web start system could be
used together with WFS-T for a professional quality web GIS vector editing.
Unfortunately OJ wfs-plugin does not work in WFS-T mode with GeoServer and I do
not have deegree WFS installed.
If you want to see an extremely simple to use web editor, then have a look on
the Flash based editor used by the OpenStreetMap project at openstreetmapo.org.
-Jukka Rahkonen-
________________________________
Lähettäjä: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Puolesta Larry
Becker
Lähetetty: 7. marraskuuta 2007 18:26
Vastaanottaja: JUMP Users Discussion
Aihe: Re: [jump-users] Slightly off topic:The state of web GIS
Thank you all for your comments. They were very helpful. From what I
have seen, we may be on the crux of a new era of web GIS. Demos like
http://crschmidt.net/mapping/wpserverdemo/index.html (OpenLayers on top of
WPServer) show what can be done.
However, it all does still look a bit experimental from where I stand.
Since my project is going to last several years (forever in internet time), it
would appear to be wise to sit it out for a while and see what shakes out. It
is hard to know who the big players will be. The old guard of GIS, ESRI,
AutoDesk, and the like seem almost insignificant beside the likes of Google,
Microsoft, and the growing open source movement.
regards,
Larry
On Nov 7, 2007 8:01 AM, Nutsch, Bob D. <[EMAIL PROTECTED]> wrote:
Hi Larry,
I wonder if GeoServer, with it's transactional WFS
capabilities, would be of assistance? That, along with OpenLayers may provide
your client with some of the needed tools.
Regards, Bob
________________________________
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Larry Becker
Sent: Tuesday, November 06, 2007 4:40 PM
To: JUMP Users Discussion
Subject: [jump-users] Slightly off topic:The state of
web GIS
Hello all,
I'm in the early stages of a new, but long
anticipated software project involving GIS. My assumption has always been that
the role of the GIS client would be filled by SkyJUMP, and the role of the GIS
server would be filled by ESRI Arc-something. Recently, I've been pressured by
the clients to adopt a web 2.0 approach to the project for the usual reasons,
ease of deployment, maintenance, and certification.
Unfortunately, the client GIS definitely needs to
support fairly heavy data creation and editing capabilities, plus I need to
perform a good bit of customization to integrate it with another application
that will be a consumer of some of the GIS data. The direction that I have
been pointed by the clients is toward ArcServer's new Web Editing capability.
However, we have found that ESRI changes the direction of their platform every
three or four years, leaving frustrated early adopters in their wake. To
paraphrase Obi-Wan, "I would prefer to avoid any ESRI entanglements."
So my question for all of you GIS gurus out there is,
"What is the state of web GIS?" Can the current state of the art handle my
scenario, or is it still too soon?
And since this is a JUMP users discussion list, I'll
also pose the question, "Could JUMP be morphed into an editing web client?"
best regards,
Larry Becker
Integrated Systems Analysts, Inc.
--
http://amusingprogrammer.blogspot.com/
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