[OSM-talk] RFC: what are empty nodes and how should we use them?

[Peter Körner]

Am 16.08.2010 15:13, schrieb Maarten Deen:
> But that automatically means that if you upload in multiple chunks and
> something goes wrong after nodes have been uploaded, it can occur that
> the nodes will be created but the ways not.
> And since most nodes that belong to ways have no tags, you end up with
> a bunch of untagged nodes.

This can be solved by splitting the upload into spacial correlated 
pieces. A really smart unloader would cluster the data into tiles of 
1x1km and upload each one individually (nodes & ways in one diff).

Even for huge ways it is possible to upload 150 nodes and a way and then 
another 150 nodes and a new version of that way covering all 300 nodes.

I remember some garmin map creation software that even creates those 
tiles based upon the number of objects in it, so that in areas with less 
data there would be also a decreased number uploads.

Peter