[Routing] How to create a routing data from planet.osm

flo florian_detig at yahoo.de
Thu Sep 18 23:15:02 BST 2008


Hi,
does someone know if the script 'normalises' edges?
ie remove nodes of degree two (which are nice for rendering but slow 
down routing)
may be that's the reason not to write to the db immediatelly
the whole dataset is needed to determine node degrees ?
flo


Daniel Kastl wrote:
> Oh, and there is one more thing:
> Don't try to import the complete planet. osm file at once (about 90GB
> uncompressed), because you will run out of memory (if you don't run a
> super computer).
> It's a current limitation of the tool, that it parses the complete XML
> first before writing it to the database. This could be improved by
> writing to the database once a certain portion has been parsed, but
> nobody implemented this yet.
> Contributions are always welcome!
>
> Daniel
>
> Yatzek schrieb:
>   
>> Hi.
>> Is there any software which will convert .osm data into SQL statments 
>> and than import it into Postgres with postGIS and pgrouting extension, 
>> so I can later use it for routing?
>>
>>     And if not pgroutning, do you know any good solutions I can apply to 
>> OSM for routing? I just beginning to learn about shortest path alg. and 
>> do not really know where to start from when wanting to apply them to 
>> large sets of data like OSM
>>
>>
>>
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>>   
>>     
>
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