On 19 August 2011 08:07, Schuyler Erle <[email protected]> wrote: > I would like to import the region and district boundaries from the OCHA COD > next. Does anyone have any thoughts on how to go about this? If I just import > the polygons as is, we'll wind up with a lot of redundant nodes and ways, I'm > guessing. I would really appreciate feedback.
Do want to import all three datasets, including the Mogadishu districts? I'll take a look at the files. As Toby said ogr2osm can create the multipolygons deduplicating ways and nodes, but you will need additional logic for setting the right admin_level on the ways and you probably want to leave out the country boundary which is already in OSM (so the border district relation will need manual fixing up). I have a python script that I used to do this for the Spanish borders which had 3 admin levels combined and uploaded together, including adding wikipedia= and population= tags iirc. > > Next, HOT has been been donated a decent looking highway dataset by > MadMappers as described on the data sources page on the wiki. > > I have reviewed this dataset on the HOT list: > > http://lists.openstreetmap.org/pipermail/hot/2011-August/000897.html > http://iconocla.st/hot/so/madmappers1.png > http://iconocla.st/hot/so/madmappers2.png > > There are 753 roads currently in the OSM database in Somalia. There are > 37,427 roads in the MadMappers dataset. The good folks on the #osm channel on > IRC were kind enough to brainstorm with me for a bit on how to proceed. My > current plan is to split the MapMappers road dataset into two pieces: One > which contains all the roads that are no closer than 500m to an existing road > in OSM. These I will import as-is, retaining information on provenance and > road surface wherever possible. > > All of the MadMappers road features within 500m of an existing road in OSM > will be split up geographically, and the chunks will be converted into OSM > files and posted on the wiki. I will put out a call for volunteers on the HOT > list to "check" out these files, and integrate them manually using JOSM, > taking care to attach the nodes at the edges. I would like to have all of > this work completed by Monday, provided that I can find the volunteers. I > will document everything on the wiki. Makes sense. Cheers _______________________________________________ HOT mailing list [email protected] http://lists.openstreetmap.org/listinfo/hot
