[OSM-dev] osmtools first release - nodeID
Hendrik Siedelmann
hendrik.siedelmann at googlemail.com
Sun Apr 27 16:58:30 BST 2008
2008/4/27 Marcus Wolschon <Marcus at wolschon.biz>:
> | Nodes can still be identified by their lat/lon coordinates. As nodes
> | are not duplicated in the database this is possible. And routing still
> | needs to find which ways reference a node, so routing from one way to
> | another is still complicated. On the other hand checking if another
> | way uses the same points is fast on a spatial database (I will at some
> | time provide funktions provide routing)
...
> So the system cannot know the difference between 2 ways sharing the same
> node and 2 ways with 2 nodes that just share the same coordinates?
>
Yes for the database it's the same. On the other hands if two nodes
share the same coordinates they should be joined (Thats what I read),
so there will never be two nodes at the same coordinates. (At least in
theory)
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