On Fri, 2007-07-13 at 13:19 +1200, Hamish wrote: > Jannis Achstetter wrote: > > I wanted to import data from the OpenStreetMap-project to GRASS. I > > found a bash-script written by Hamish some (long) time ago and tried > > it that way. His script has 3 disadvantages for me: > > - It somehow had X and Y swapped (maybe worked correctly for earlier > > version of GRASS?) > > - It didn't work with OSM-files written by JOSM (Files written by > > server/API were OK) > > - It's slow (Spawns lot of procs, used tempfiles very often) > > So I quite rewrote the script in TCL (using similar techniques but > > improved ;) fixing some stuff. > > When I had the thing done, I tried to rewrite it, so it now became a > > module for GRASS (though written in TCL). > > The script reads the file line-by-line and stores the important stuff > > in arrays and then imports the data as vector map using 1 polyline for > > each way. Since TCL uses quite a bit of memory for arrays (it's not C > > after all), you might not want to import the whole planet.osm. > > Since this is my first module for GRASS and things can always be > > improved, feedback is very welcome and wanted. > > You can find the script here: > > http://kripton.kripserver.net/software/v.in.osm > > Written for GRASS 6.2.1, not tested for other versions. > > > Excellent stuff Jannis. I look forward to trying it out. > Yes, mine was a quick hack just to get it working. I was mostly > interested in building a connected network from all the OSM segments to > try out GRASS's v.net.* and d.path routing modules with real data. > Hopefully OSM has standardized some on road types (dirt, residential, > highway, etc.) since then. I remember correcting for that taking most of > the time. I'll update my google page to list your script once I get my > Debian upgrade finished ;) Until then perhaps you could add it to the > GRASS Wiki add-ons page?
I would recommend adding it to the SVN repository, but the script requires tcsh. :( I'd like to use OSM, but I've found it horribly lacking in both consistency and metadata. -- 73, de Brad KB8UYR/6 <rez touchofmadness com> _______________________________________________ grassuser mailing list [email protected] http://grass.itc.it/mailman/listinfo/grassuser
