[OSM-dev] Data download anomaly

[Peter Körner]

Thomas Emge schrieb:
> I am performing a GET request to download some data as in
> http://api.openstreetmap.org/api/0.6/map?bbox=7.14746,50.68080,7.16356,50.68613
> 
> Looking through the response I discovered that parts of the relations 
> are “missing”. Well, I guess they are not really missing but they are 
> not part of the original response. For example, one of the relations 
> that are returned is the following one
> http://api.openstreetmap.org/api/0.6/relation/13239
Did you read the docs on the /map call? It states

 >> Note that, while this command returns those relations that reference
 >> the aforementioned nodes and ways, the reverse is not true: it does
 >> not (necessarily) return all of the nodes and ways that are
 >> referenced by these relations. This prevents unreasonably-large
 >> result sets. For example, imagine the case where:
 >>  - There is a relationship named "England" that references every node
 >>    in England.
 >>  - The nodes, ways, and relations are retrieved for a bounding box
 >>    that covers a small portion of England.
 >> While the result would include the nodes, ways, and relations as
 >> specified by the rules for the command, including the "England"
 >> relation, it would (fortuitously) not include every node and way in
 >> England. If desired, the nodes and ways referenced by the "England"
 >> relation could be retrieved by their respective IDs.

> However if I take a look through the listed ways from the original GET 
> request I can’t find way id=23039372 in the returned osm file. And the 
> way does exist on the server as in
> 
> http://api.openstreetmap.org/api/0.6/way/23039372
This is returning the way for me, just as
http://www.openstreetmap.org/browse/way/23039372


Peter