On Mon, Oct 20, 2008 at 2:43 AM, vegard <[EMAIL PROTECTED]> wrote: > On Sun, Oct 19, 2008 at 10:54:55AM -0700, Dave Hansen wrote: >> Has anyone looked at importing the TIGER 2007 data yet? I was going to >> start coding up the conversion utilities to get started. It appears >> that this shapefile format may have existing OSM converters out there. >> Anyone want to admit to having one? ;) >> > > I see it like this: What could be very useful to have, is a mapping > between tiger data (old set) and OSM data. It could be to late for this > round, but an external_id:tiger = XXXX that you'd *never* remove, is a > good thing. That'll help when updating. > > Then you'll need to to a diff between the old data and the new data, and > find out which ID's are candidates for updating. > > Then you could do a diff between old and OSM for those IDs. Anything > that's not touched in OSM --> update. > > Anything else, I'm sure you'll have to do more or less manually, but I'm > sure you could automatize bits of it - like road classification changes, > name changes etc. > > This is my rough proposal for how to handle large chunks of external > data.
Hello, So what tiger data are we talking about exactly? I have a script that loads zipcodes shp files into postgregis table? Not sure if that helps? It basically loops through a states and enters them to a postgis using shp2pssql. Lucas _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk