Hi there, it looks like our talks for Wikimania 2009 have been scheduled:
http://wikimania2009.wikimedia.org/wiki/Schedule#Day_2
I won't be around for much of August so I'm trying to do all the work
of working on software / my talk now before the end of July.
So before that time I'd like to coordinate with you two (and other
people?) how we're going to:
* Do this pre-conference OSM workshop that we've signed up for
* Split up our talks so that we make sure we don't have overlapping
subjects and don't miss anything important.
Basically what I'm interested in presenting for the latter is what I
blathered about at the Wikimania hacking days:
* A technical overview of how this OSM on Wikimedia thing works, i.e.
Planet.osm -> Database -> Rendering -> Embedding in MediaWiki
* Demos on using the extension for things I'm working on that'll
(hopefully!) be finished at that time, e.g.:
* Static map generation: https://bugzilla.wikimedia.org/show_bug.cgi?id=19654
* Multilingular map generation:
https://bugzilla.wikimedia.org/show_bug.cgi?id=19668 (I'm going to do
this by e.g. showing the West Bank in both Hebrew & Arabic)
* Whatever else fits into that general criteria that I'm forgetting
when writing this hurried e-mail
For the latter it would be nice to:
* Get in contact with that local Argentinian
OpenStreetMapper/Wikipedian that someone mentioned and get him in on
this
* Find out what our audience will be, what are they likely to want?
* Schedule some sort of outline for what we want to do .*I* can
blather about GPS collecting -> editing -> map generation or whatever
and answer questions, but it would be nice if we had something more
focused than that :)
Hello there, long time no see:)
In the last few days I've been working on the project of getting
OpenStreetMap onto Wikimedia as outlined here:
http://techblog.wikimedia.org/2009/04/openstreetmap-maps-will-be-added-to-w…
Unfortunately I wasn't able to hack on it sooner (but of course other
people have been working on it too!) and the project has been somewhat
held up by the WM-DE servers being delayed.
Anyway, one thing standing between us and world domination is
rendering those static maps, I'm going to implement this but first I'd
like to get comments on *how* we'd like to do it, so I've written a
plan for doing it:
http://www.mediawiki.org/wiki/Extension:SlippyMap/Static_map_generation
Would generating static images like that be fine for Wikimedia
purposes or is this totally crazy? I think it would be just fine, but
then again I did write the Cite extension so take that with a grain of
salt:)
And to spam a bit: if getting pretty OpenStreetMap maps deployed is
something you'd like to happen sooner than later head over to our
development page:
http://www.mediawiki.org/wiki/Extension:SlippyMap#Development
I'm working off the Bugzilla tasklist which should be an approximate
indication of stuff that needs to be done.
The fun! project of getting OpenStreetMap maps deployed on Wikimedia
servers (e.g. Wikipedia) is grinding forward at a healthy pace, here's
the original announcement for those who have no idea what I'm talking
about:
http://techblog.wikimedia.org/2009/04/openstreetmap-maps-will-be-added-to-w…
Unfortunately the project has been somewhat delayed by the
Wikimedia.de servers mentioned in that posting taking a bit longer to
arrive than expected (the DB server is still not up).
I've personally had some much needed time to work on it recently,
right now I'm hacking static map generation as outlined here:
http://www.mediawiki.org/wiki/Extension:SlippyMap/Static_map_generation
(see the RFC at wikitech-l:
http://lists.wikimedia.org/pipermail/wikitech-l/2009-July/044027.html)
If you'd like to help here's the bug list I'm working on:
http://tinyurl.com/nh62xy
There are lots of tasks to be done. One very interesting task that I'm
sure someone would be happy to work on is seeing how this setup scales
to >200 languages or so:
https://bugzilla.wikimedia.org/show_bug.cgi?id=19668
Ideally Wikimedia will have static map generation / a tileserver
that'll render maps in the locale of the target wiki, so it'll e.g.
use name:de tags for de.wikipedia.org.
The SlippyMap extension code has been updated on the MediaWiki svn.
It's very much a work in progress, but the code is now split up into class
files:
* SlippyMap.class.php - a general slippy map class
* SlippyMap.worldwind.php - extends the general slippymap class; this is
still in development
* SlippyMap.hooks.php - put the hooks here
* SlippyMap.php - the main extension file; configuration options can be put
here
Other files:
* SlippyMap.js
* SlippyMap.css
I'm also working on some special pages:
* One is Special:MapServices - It's not ready to commit, but it allows
configuration of what map types are allowed on a wiki, and which sources.
For Wikipedia, it will be restrictive, probably just to our own OSM
servers. For other, smaller wikis, one might like to include maps from
other WMS sources. On one of my own projects, I have GeoServer and PostGIS
setup, generating my own custom maps and want to include them in my own
wikis.
* Another could be Special:CreateMap to allow users to determine the map
parameters (e.g. bounding box, center point, zoom level) and generate wiki
code. Or this could be done as a popup window or some other
implementation. I know there already is a "get wiki code" button on the
SlippyMap, but that requires one to add a slippy map to the page, then
zoom/pan around, get the wikicode via the button, then update the wikicode.
I don't think that's the best approach.
Also to be done is configuration of OpenLayers, to include just the
JavaScript files that are needed for the particular map types we are using,
rather than the entire OpenLayers code.
There are plenty of other things to be done.
-Aude
What's the current status of the DB server?
I'm hacking the SlippyMap extension and it would be useful to work on
one of the hard parts soon. I.e. how we want to generate a static map
image from the database and having a working OSM -> OSM DB -> Mapnik
DB -> Tileserver is required for that.
We'll have to figure out what's the best way to do this. One option
would be to merely use this:
http://svn.openstreetmap.org/sites/tile.openstreetmap.org/cgi-bin/export
It's very resource intensive to render like that but perhaps we can
stick a cache in front of it (with an expiry of e.g. 1 week) and get
away with it.
Another option is to use something like this:
http://dev.openstreetmap.org/~ojw/StaticMap/
That's a script that generates a static map by assembling tiles. It
has some neat features like adding a marker to the final image which
we might want to adopt.
But we can use the cgi-bin/export script and just post-process its
output to get the same results.
But generating a lot of tiles *first* and then generating static map
images is something I'm not at all convinced is a good idea. You'd
have to deal with all sorts of uncomfortable cases like the tiles you
want to use not existing at the moment you're generating the map.
Besides, unlike OSM Wikimedia's primary application (at least for now)
is going to be biased towards static maps as opposed to tiles. The
opposite of what OSM itself is doing really.
Note that we can use the cgi-bin/export script and just post-process
its output to get the same results.
Daniel suggested that perhaps we could just stick our generated maps
in the thumbnail cache. This is a very interesting idea and something
I'll have to look at further.
It's simple, and we automatically have a per-project namespace so we
can do per-project renderings, i.e. German tiles for dewiki, English
for enwiki, as determined by name:CODE tags in the OSM DB.
However we end up generating things we're going to have to cache them
somehow, and do cache expiry. The latter being the hard part.
I'm not at all convinced that coming up with some elaborate caching
system that can automatically expire our generated tiles once the OSM
data they're generated from changes, that would require all sorts of
complexity.
Instead it might be much easier just to assume that everything we
generate can be put in the cache for a set amount of time, and after
that period we'll have some method of automatically expiring
everything.
What do you think?
Oh, and here's the new buglist: http://tinyurl.com/kuv9v8
Please add stuff that needs to be worked on.
Hello,
*I added some lines to our geohack-script so that it can catch a page
from OSM-Wiki if it get the parameter project=osm and give you back
links to many osm-maps for your position.
The new osm-geohack is in the moment integrated in the german and
english old-geohack. Please feel free to add maps or make a better
descriptions:
http://stable.toolserver.org/geohack/geohack.php?project=osm&pagename=Alber…http://wiki.openstreetmap.org/wiki/Template:GeoTemplate-en
(Openroutemaps and cloudmade seems to have problems to get coordinates
via url.)
*@Jens: Please don't forget to give also 80n access to the db-server for
XAPI. Whats the actual schedule for Cassini (maps-toolserver)?
*The new elevation map from the NASA sounds good. For hiking and biking
maps we could really need a better resolution in some regions like Saxon
Switzerland.
But it seems really complicate to get the datas and we need to control
that we have a compatible licences. Also the data volume is very huge,
so perhaps it is better to make it later.
Greetings Kolossos
Hi,
just a smal status mail:
I have mailed Mark and Brion to get access on 14th of June. But they don't
answer. I send an reminder now.
I have no access to the Server, so I can not install or help in any way.
Best Regards
Sven
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Dear subscribers Wikimedia Maps-L,
Buongiorno cari amici,
.
Maybe obsolete, however I enclose recent other Listserver communications in respect of thermal analyse of NASA most complete map ever published.
.
I trust this information is sufficient for your purposes, in case you require any additional details, please do not hesitate to contact the undersigned.
.
Yours sincerely,
Cordiali Saluti
.
.
.
Marzio Veneman
The Netherlands
ICQ: 377511089
.
Click here to visit my profile!
<http://www.hotfrog.nl/Companies/Rythmos-Creative-Advisory>
<http://delicious.com/tags/rythmomachy?setcount=100>
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%B0%F9%91%B3%09%60%02%0F%A8%E8I%E3%07%3D%B4pWgBP%7C%14%90K%3A%ED%B4%8C%F9%D7%DB%ABH%9B%CD%DD%DE%E7_%FB
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----- Forwarded Message ----
From: Maps-L Moderator <acope(a)uwm.edu>
To: MAPS-L(a)LISTSERV.UGA.EDU
Sent: Wednesday, July 1, 2009 2:27:09 PM
Subject: Re: 'Most Complete Earth Map Published' *NASA links*
-------- Original Message --------
Subject: Re: 'Most Complete Earth Map Published' *NASA links*
Date: Wed, 1 Jul 2009 04:29:07 -0700 (PDT)
From: MARZIO VENEMAN <max.rythmos(a)yahoo.com>
To: maps-l(a)listserv.uga.edu
-----INLINE MESSAGE FOLLOWS-----
Dear Brian, Mr. Bach,
..
The original NASA publication also mentioned the weblinks pertaining to
thermal analysis, which I herewith state, firstly xtra information.
.<http://en.wikipedia.org/wiki/Calorimetry>
<https://lpdaac.usgs.gov/> at writting unaivalable
<http://asterweb.jpl.nasa.gov/>
.*Aster is one of five Earth-observing instruments launched on Terra in
December 1999. Aster acquires images from the visible to the thermal
infrared wavelength region, with spatial resolutions ranging from about
15 to 90 meters (50 to 300 feet). A joint science team from the U.S. and
Japan validates and calibrates the instrument and data products. The
U.S. science team is located at JPL.
For visualizations of the new Aster topographic data, visit:
*http://www.nasa.gov/topics/earth/features/20090629.html .*
Data users can download the Aster global digital elevation model at:
*https://wist.echo.nasa.gov/~wist/api/imswelcome
<https://wist.echo.nasa.gov/%7Ewist/api/imswelcome>* and
*http://www.gdem.aster.ersdac.or.jp <http://www.gdem.aster.ersdac.or.jp/> .*
For more information about NASA and agency programs, visit: *http://www.nasa.gov <http://www.nasa.gov/> *.*
Yours sincerely,
/Cordiali Saluti/
Marzio Veneman
The Netherlands
ICQ: 377511089
.
**
------------------------------------------------------------------------
*From:* Maps-L Moderator <acope(a)uwm.edu>
*To:* MAPS-L(a)LISTSERV.UGA.EDU
*Sent:* Tuesday, June 30, 2009 9:11:12 PM
*Subject:* 'Most Complete Earth Map Published'
-------- Original Message --------
Subject: 'Most Complete Earth Map Published'
Date: Tue, 30 Jun 2009 11:57:43 -0700
From: Brian Bach <Brian.Bach(a)cwu.EDU <mailto:Brian.Bach@cwu.EDU>>
To: MAPS-L(a)listserv.uga.edu <mailto:MAPS-L@listserv.uga.edu>
From the BBC:
http://news.bbc.co.uk/2/hi/science/nature/8126197.stm
Brian P. Bach
Documents/Maps
Brooks Library
Central Washington University
400 E. University Way
Ellensburg, WA 98926-7548
USA
bachb(a)cwu.edu <mailto:bachb@cwu.edu>
http://www.amazon.com/Calcuttas-Edifice-Buildings-Great-City/dp/8129104156
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