[Openstreetmap] data explosion

Glen Barnes newsgroups at devour.co.nz
Thu Jul 7 08:13:13 BST 2005


Lars Aronsson wrote:

>
>Note how sparse the data are.  Just one or two dots per block.  
>Seems they are using less than one-sample-per-second.  Just 
>looking at the dots (and not the straight lines between adjacent 
>dots), it will be very hard to determine where the roads are. This 
>could be compensated by interpolating the missing one-second 
>samples when the files are converted to GPX, but that would create 
>very many more trackpoints.  Rethinking OSM from dots to lines 
>would be the better approach.
>  
>
Surely after several weeks of data the dots will be filled in more? For 
example if the same road was driven 20 times over several weeks then  
the dots would be a lot closer together making it easier to distinguish 
roads.

Glen




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