[OSM-talk] TIGER 101

raphael Jacquot sxpert at sxpert.org
Thu Nov 30 17:28:30 GMT 2006


Andy Robinson wrote:
> Ben,
> 
> Thanks for the update. I think the key one to get right is the node reuse.
> Grouping individual street ways parts into a single street is less critical
> because it's a fairly easy task to do by hand if you need it. It's not
> feasible to merge nodes by hand though.
> 
> As you say the data is coarse and therefore its not really a problem to
> consider node combination similarly. However if I look at the San Francisco
> data I don't see node displacement at junctions exceeding 1 metre (in fact
> significantly smaller if not the same lat and lon) so I'm guessing that many
> of the street junctions do have the same lat/lon or at least very close to
> it. Its very unlikely that there is a problem combining points that are
> within that sort of radius anyway.
> 
> Cheers
> 
> Andy
> 
> Andy Robinson
> Andy_J_Robinson at blueyonder.co.uk 

I'll be trying to do something about this this week end...




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