[Openstreetmap-dev] Nodes considered identical

[SteveC]

At the moment, nothing is done if you create a node in the same place as
another.

I would propose that when creating a new node the server responds with
another node if it's within some epsilon distance. The API would not
have to change at all.

Similarly with creating a line that already exists...

or it could just thrown an error. *shrug*

is this a problem yet?

* @ 30/09/05 07:46:56 PM immanuel.scholz at gmx.de wrote:
> Hi,
> 
> when does the server (when importing/exporting GPX) consider two nodes
> to be the same node?
> 
> 1) When they have almost the same lat/lon (delta of ??? is considered
> "the same")
> 
> 2) When they have exactly the same lat/lon
> 
> 3) When they have almost the same lat/lon and either none of them has an
> <ele> tag or both have one and it is almost the same.
> 
> 4) like 3), but "almost" skipped ;)
> 
> 5) When they have the same 'xxx' in <extension><property key="id"
> value="xxx" /></extension>.
> 
> 6) like 3), but if one of the nodes has an property "id", both must have
> an id and it must be the same, elsewhere the nodes considered different.
> 
> 
> Personally, I'd use 6). But I doubt it is implemented ;-).
> 
> Ciao, Imi.
> 
> 
> 
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have fun,

SteveC steve at asklater.com http://www.asklater.com/steve/