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? Hamish _______________________________________________ grassuser mailing list [email protected] http://grass.itc.it/mailman/listinfo/grassuser
