[OSM-talk] OSM and Trackmaster

SteveC steve at asklater.com
Wed Jan 17 11:02:03 GMT 2007


* @ 17/01/07 10:29:26 AM nickblack1 at gmail.com wrote:
> Didnt reply to all...
> 
> ---------- Forwarded message ----------
> From: Nick Black <nickblack1 at gmail.com>
> Date: Jan 17, 2007 10:28 AM
> Subject: Re: [OSM-talk] OSM and Trackmaster
> To: Francis Augusto Medeiros <francis at mgate.com.br>
> 
> 
> The more layers the better, but after taking a look at the TAB you
> gave me, it should look pretty good in OSM.
> 
> Meanwshile, if any PostGIS/OGC gurus could point me in the direction
> of some docs that explain how the OGC Geometry specs deal with road
> intersections to maintain topolgy, it would speed up the import.

AFAIK, it doesn't. You have to maintain that yourself in other columns
so say your segment table would be

id, node_a_id, node_b_id, geomfromtext( line from a to b)

then you'd repeat that data in the node table (as a first pass at what
you'd do).

have fun,

SteveC steve at asklater.com http://www.asklater.com/steve/




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