Maps-l June 2010

maps-l@lists.wikimedia.org

9 participants
14 discussions

Render Request
by Thomas Ineichen 20 Aug '10

20 Aug '10

Hi, I put a little work in my access map and created some new styles for quality assurance. I tried to keep it as simple as possible, so the drawing scheme is down to six colours and two line types: http://access.t-i.ch/qa-map.html Each of the different (most important) means of transport has its own layer in which *only* explicit acces-Keys (e.g. bicycle=*) are rendered. The second map uses inheritance according to the following tree: http://wiki.openstreetmap.org/w/images/3/3b/Access_hierarchy_simple.png http://access.t-i.ch/qai-map.html AFAIK it's the first map to draw, what routing algorithms already should rely on. I belive that this map will increase the quality of routing information in OSM and therefore enhance OSM a lot. Unfortunately, the result is 17 different styles, but they should not change much in the future. (Hopefully, they don't change at all!) :) The Styles for the first map are: /home/ti/styles/qa/qa-access.xml /home/ti/styles/qa/qa-foot.xml /home/ti/styles/qa/qa-horse.xml /home/ti/styles/qa/qa-vehicle.xml /home/ti/styles/qa/qa-bicycle.xml /home/ti/styles/qa/qa-motor_vehicle.xml /home/ti/styles/qa/qa-motorcycle.xml /home/ti/styles/qa/qa-motorcar.xml /home/ti/styles/qa/qa-hgv.xml The styles for the second map are: /home/ti/styles/qai/qai-foot.xml /home/ti/styles/qai/qai-horse.xml /home/ti/styles/qai/qai-vehicle.xml /home/ti/styles/qai/qai-bicycle.xml /home/ti/styles/qai/qai-motor_vehicle.xml /home/ti/styles/qai/qai-motorcycle.xml /home/ti/styles/qai/qai-motorcar.xml /home/ti/styles/qai/qai-hgv.xml @Peter: I have deleted the old access.xml and bicycle.xml because they are integrated into this new structure. I don't know yet if there will be other *_combined-styles; for the moment bicycle_combined is unchanged. As soon as the styles are rendered, I will post it on the international list. Thanks again, Thomas

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How to connect renderd to own renderer?
by Kay Drangmeister 30 Jun '10

30 Jun '10

Hi. I wrote a render script that (similar to the compositing that hike&bike map does) does things that mapnik is not capable of. My script is written in python and can render bboxes into arbitrarily sized images, as well is able to serve tiles (e.g. http:localhost/bla.../12/345/678.png) However it is probably the utmost slow renderer there is, it takes about 3 minutes for a simple tile. (Which is ok, because it's experimental only at the time. :)) How can I make renderd (or tirex, or tilecache) call that script, I found no documentation on that. I want to create metatiles of course, too, because I have a thin lines of garbage at the tile boundaries. Can you please give me a hint/link on how/where to start? Thanks a lot, Kay

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New Planet-Import with extra hstore columns
by Peter Körner 27 Jun '10

27 Jun '10

Hi I'd like to start a new planet import using the new --hstore-column feature of osm2pgsql. It would allow us to have a "name:" column, containing all translations and thus allow better rendering of translated objects. I'll run it directly on ptolemy into the existing osm_mapnik database but with a different prefix. The exact command is time ./osm2pgsql \ --slim \ --cache 2000 \ --style default.style \ --prefix planet_hc \ --host sql-mapnik \ --database osm_mapnik \ --hstore \ --hstore-column "name:" \ --hstore-column "addr:" \ --hstore-column "wikipedia:" \ $HOME/data/planet/planet-100623.osm.bz2 Peter

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Simpler psql statement
by Thomas Ineichen 25 Jun '10

25 Jun '10

Hi, to see what keys there are for rendering on my bicycle map, I query the db for %cycle%: SELECT key, count(*) FROM ( SELECT (each(tags)).key FROM planet_osm_line ) AS stat WHERE key LIKE '%cycle%' GROUP by key ORDER by count DESC As this is rather slow, I was trying to take the %cycle% to the inner query. But how can I trigger the keys in 'tags'? And would that be really faster? Thanks for any hint, Thomas

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Fitness Trails
by Thomas Ineichen 24 Jun '10

24 Jun '10

Hi, With the help of Peter's Post-Box-Guesstimator[1] I finaly created my first vector map, a map of Fitness and Running Trails: http://toolserver.org/~ti/ftm/ I allready started this before with self rendered tiles[2], but because there are only about 50 routes in the OSM-database; it was not worth the trouble. Regards, Thomas [1] http://toolserver.org/~mazder/pboxguesstimator/ [2] http://osm.t-i.ch/fitness_map.html

2 1

rendering own style
by Stephan Knauss 18 Jun '10

18 Jun '10

Hi, I was asked to assist in rendering some special purpose maps for a referendum coming in Bavaria. I looks like I ended up doing all the work ;) http://de.wikipedia.org/wiki/Volksbegehren_%E2%80%9EF%C3%BCr_echten_Nichtra… Currently I'm using an overlay that can not be minutely updated. I would like to switch that to toolserver. http://toolserver.org/~stephankn/?zoom=7&lat=49.0436&lon=11.32592&layers=BTF Is there an infrastructure in place that makes it easy to add a new style to the tiles being rendered? Or is it neccessary that an admin manually edits renderd.conf? Can I simply provide a style file in my home dir? Do scripts exist to expire tiles of my style in case I adjust the style? Stephan

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Live Map-Rendering-System
by Peter Körner 18 Jun '10

18 Jun '10

We've ben running ptolemy as the maps toolserver for a while now and I think it's quite stable. Over the past months a lot of people sent requests for the multilingual maps that were running on cassini. Ad far as I see things, this is a task for the live rendering system that will drive the maps later published in our wikipedias. I feel it's time to do the next one step in this direction and get up the live rendering system now. I read that ortelius has been repurposed as webserver and cassini has been renamed to adenia. From searching jira it seems that also adenia is now running other tools. So: do we have a live maps rendering server? Or should we use ptolemy, not only as toolserver but also as live rendering system? Peter

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First steps to my overlay
by Thomas Ineichen 17 Jun '10

17 Jun '10

Hi there, As you may have seen on toolserver-l, I'm new here and I'd like to improve OSM-data by displaying access rights on different layers (as I'm doing here: http://access.t-i.ch/ ). As far as I understand the discussion at [1], first thing would be to apply for getting added to the OSM-Prject-Group, right? This shall be done hereby. :) Is there any documentation what I have to do thereafter to get my tiles rendered at eg. http://toolserver.org/tiles/ti/<vehicle_type> or is more or less 'copy-paste' from existing projects? If so, I will try to set up a wiki-page with all your collected tipps on how to use mod_tile so the next newbie doesn't have to bother you that much. ;) (Maybe for some little-used keys like 'hgv' I will also try to set up a Query-to-map..) thanks, Thomas (ti) [1] http://lists.wikimedia.org/pipermail/maps-l/2010-May/000623.html ff.

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Re: [Maps-l] [Toolserver-l] OSM on Toolserver
by Peter Körner 16 Jun '10

16 Jun '10

Marcus Buck schrieb: > How much work is it? Half an hour? A day 9am-5pm? A month 9am-5pm? I do > not even have a vague idea about the problems that need to be solved. > Perhaps somebody can shed some light on it? Setting up th styles it not an issue, let's say around 1 hour. Th think I'm not sure about is, if we should do it on our development / toolserver. My original Idea was to have the toolserver there for the people to play around, test crazy or useful styles ans such. The multilingual maps should go on the live system (what previously was cassini). But there have been no pretensions to set up cassini with an render stack. Maybe we just have to open a ticket in jira to get it done [1]. Once the system is set up, I'd go on importing another clone of the database [2] and set up the multilingual rendering again - and that's it. Peter [1] http://... [2] i'M unsure about this one. Should we use ptolemy for live rendering or should cassini carry it's own, local copy?

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Planet-Import with hstore
by Peter Körner 15 Jun '10

15 Jun '10

Hi Folks, i started a planet import with the additional hstore column. It allows us to retrive and search in all tags used in osm. I used a combined hstore/column scheme, as our tests on the german devserver showed that hstore-value-conditions are much slower than the column-conditions of the classic database layout. If the import is over, i'll come back with some sample queries. The import is running on ptolemy using the following command: $HOME/src/osm2pgsql/osm2pgsql \ --slim \ --cache 3000 \ --merc \ --prefix planet \ --style $HOME/src/osm2pgsql/default.style \ --host sql-mapnik \ --database osm_mapnik \ --hstore \ --extra-attributes \ $HOME/data/planet-100505.osm.bz2 2>&1 | \ tee $HOME/planet_osm_hstore_import.log I'm planning to switch the ddiff update process to this database after the import and to drop the old, classic database. Peter

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Maps-l June 2010