[OSM-dev] Storing way/relation start offset in PBF file
frederik at remote.org
Tue Nov 30 22:25:16 GMT 2010
Christian Vetter wrote:
> Wouldn't it be easier to just declare your PBF file sorted (maybe even
> topologically sorted)? That way you will always read the ways before
> the nodes and relations before ways.
1. Relations can have circular references
2. Such a sorted file would be much more expensive to create (remember,
Jochen's suggestion works in streaming mode)
3. There are situations where you *still* would like to e.g. skip
directly to the node section in your case, so sorting would not solve
all problems that Jochen's solution would address.
Frederik Ramm ## eMail frederik at remote.org ## N49°00'09" E008°23'33"
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