[Mapbender-users] Re: [pgsql-www] [Freegis-list] Re: [GENERAL]

Bruce Momjian pgman at candle.pha.pa.us
Wed Dec 7 16:03:35 CET 2005


I like the idea that people can add themselves, but I also liked the
dynamic ability of seeing all email posters from the last few months. 
Can we have both?

---------------------------------------------------------------------------

Robert Treat wrote:
> On Wed, 2005-12-07 at 02:30, Arnulf Christl wrote:
> > Bruce Momjian wrote:
> > > Where are we on this?  Can we get it added to our web site?  Can we have
> > > usernames added to the map?
> > 
> > Hi,
> > yes, both can be done. But our server and connectivity are sort of slow, 
> > so I was talking to some people whether they could host the services. 
> > This will take a few more days. Anybody interested in operating a 
> > spatial data infrastructure on stable servers (preferrably FreeBSD or 
> > some Linux) with good connectivity feel free to contact us.
> > 
> 
> I'm fairly certain we can drum up some server space once we're ready to
> host this for the postgresql site. For now even slow connectivity is
> probably fine as it will only be a few people looking at it until we
> finalize what we really need. 
> 
> > Additionally we got lost in a few technical discussions about whether to 
> > implement the full scale service oriented standardized I-can-add-myself 
> > version using PostgreSQL with PostGIS (which I would really like to see 
> > as it promotes using PG as spatial data backend and also gives us GIS 
> > guys a chance to show off cool technology).
> > 
> 
> As a side note, we need folks to help out with the elephant database
> monitoring project. That seems like an ideal project to help show off
> postgis. http://pgfoundry.org/projects/wilddb/
> 
> > Claire favored an easy-to-use google-maps approach which would mean less 
> > effort getting to run (they have it all up and running) but less 
> > compatibility and unsolved copyright issues regarding the background maps.
> > 
> 
> Hmm...I thought this was all something that could be relatively easy to
> solve. I think the main problem here was that I needed to test whether
> the maps mirroring would work in the main site; I believe it would, but
> this should probably be confirmed, and I haven't had time to get back to
> it. The other side being that showing of postgis does have a nice
> political upside that seems worth following up on. 
> 
> > Give us a few more days, by the weekend I will post a link so that 
> > people can have a look at it. The link will ship with a list of which 
> > software is being used and how it is configured. Ideally someone "near" 
> > the PostgreSQL homepage could operate the service (we GIS folks never 
> > stop considering spatial proximity).
> 
> Yes, the plan would be to integrate it fully into the postgresql web
> infrastructure. We just need to figure out what that will take.  
> 
> > 
> > What has to be done anyway is collect the coordinates of the users. It 
> > would be nice to not start off with a blank map. We can provide some 20 
> > users in Germany (most of them spatial). Either the name of a city or 
> > the decimal degree coordinates of the position will do.
> 
> I see this as sort of a secondary thing, but I already have coordinates
> for most of the people listed on our developers page, so we can always
> start with that. I'm not against the idea of plotting other points
> though; we could have points for support companies, points for mailing
> list users, do some type of frapper style sign up; but that's secondary.
> The first step is figuring setting up a system to display the
> coordinates, then we can add more knobs on how to get the coordinates.  
> 
> > 
> > Best, Arnulf.
> > 
> > > Arnulf Christl wrote:
> > > 
> > >>Claire McLister wrote:
> > >>
> > >>>Good point. This might actually be a problem. Google Maps API requires 
> > >>>each server that is serving the map to be registered with Google, and 
> > >>>send the corresponding key when making the Javascript request.
> > >>>
> > >>>Unless the mirrors can each send their own keys, this will not work.
> > >>>
> > >>>Claire
> > >>
> > >>Hi, more cross posting...
> > >>
> > >>Sounds like this task should be solved using WMS and WFS services. 
> > >>Google is cool but in order to foster both Open Source and standards 
> > >>(OGC) we would suggest to use e.g. MapServer as WMS to produce the maps 
> > >>and GeoServer as WFS to manage geomtries. Those OWS services could then 
> > >>be included in any OWS client, web interface, etc. Everything is there 
> > >>and ready to go, the effort to get it to run should be minimal.
> > >>
> > >>Our clients usually operate PostgreSQL databases with several million 
> > >>geometries - those 500 to 600 markers could be hosted on any 
> > >>antediluvian box and still be fast. You will know what to about 
> > >>mirroring, we would probably suggest to implement P2P - read Ward 
> > >>Cunninghams ideas  int he keynote at the Wikimania conference this summer...
> > >>
> > >>We have done the user mmapping Mapbender users with tooltips, direct 
> > >>link to the website, etc. You can have a look at it on the project 
> > >>homepage http://www.mapbender.org
> > >>Its done Wiki-style so that users can enter their own position (use the 
> > >>blue flag) or remove or edit any position (use the i-button). No user 
> > >>accounts yet but security and authentication is in place and have just 
> > >>not yet been necessary (still waiting for spatial spam...)
> > >>
> > >>We will spread word about spatial data management using 
> > >>PostgreSQL/PostGIS with MapServer, GeoServer etc. at the 
> > >>http://www.opendbcon.net (database fundamentals) on Nov. 8. and 9. in 
> > >>Frankfurt/Main, Germany.
> > >>
> > >>This idea is on short notice but i would be really very excited if i 
> > >>could show the map there! We suggest the following alterantive actions:
> > >>
> > >>- It should be easy to add a geometry_column to the existing PostgreSQL 
> > >>database which alredy has the positions. Add a GeoServer WFS to access 
> > >>the geomtry and a MapServer for WMS display.
> > >>- Alternatively send Paolo or us or both the geo-positions and we add 
> > >>them to our existing OWS infrastructure (that will takt a few hours of 
> > >>work only).
> > >>
> > >>Beause there is not so much time until the conference this would just be 
> > >>be a prototype which should in the long run move to the PostgreSQL or 
> > >>PostGIS homepage or Wiki or both. Yet another idea:  Mediawiki (the 
> > >>Wikipedia software) is also right now introducing geometries to the Wiki 
> > >>database - obviously also using PostgreSQL/PostGIS. This would be 
> > >>another cool multiplier.. and there we also meet with Google again.
> > >>
> > >>Best, Arnulf.
> > >>
> > >>
> > >>
> > >>>On Oct 26, 2005, at 6:02 PM, Robert Treat wrote:
> > >>>
> > >>>
> > >>>>On Wednesday 26 October 2005 18:24, Claire McLister wrote:
> > >>>>
> > >>>>
> > >>>>>On Oct 26, 2005, at 2:08 PM, Brent Wood wrote:
> > >>>>>
> > >>>>>
> > >>>>>>There has recently been a thread on the Postgres user list about a web
> > >>>>>>based postgres user/developer map. Claire has built a Google map based
> > >>>>>>system, getting locations from IP addresses.
> > >>>>>
> > >>>>>
> > >>>>>Just so people know, this map can be found at:
> > >>>>>
> > >>>>>  http://www.zeesource.net/maps/map.do?group=456
> > >>>>>
> > >>>>
> > >>>>I'm going to loop in a few more people here :-), namely the pg web 
> > >>>>team who
> > >>>>will probably be able to give pointers on site integration. One thing 
> > >>>>to keep
> > >>>>in mind is that the postgresql website is statically mirrored onto a 
> > >>>>number
> > >>>>of different servers, so any solution we come up with will ideally allow
> > >>>>itself to that. I believe a google maps system can do this (we can 
> > >>>>mirror the
> > >>>>javascript code and the location/data file on all mirrors and the 
> > >>>>google map
> > >>>>will work with it as is), which is why I originally went with that 
> > >>>>type of
> > >>>>solution.
> > >>>>
> > >>>>-- 
> > >>>>Robert Treat
> > >>>>Build A Brighter Lamp :: Linux Apache {middleware} PostgreSQL
> > >>>
> > >>>
> > >>>_______________________________________________
> > >>>Freegis-list mailing list
> > >>>Freegis-list at intevation.de
> > >>>https://intevation.de/mailman/listinfo/freegis-list
> > >>
> -- 
> Build A Brighter Lamp :: Linux Apache {middleware} PostgreSQL
> 
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 1: if posting/reading through Usenet, please send an appropriate
>        subscribe-nomail command to majordomo at postgresql.org so that your
>        message can get through to the mailing list cleanly
> 

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman at candle.pha.pa.us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073




More information about the Freegis-list mailing list

This site is hosted by Intevation GmbH (Datenschutzerklärung und Impressum | Privacy Policy and Imprint)