[OSM-talk] different results returned via various APIs

Simon Hewison simon at zymurgy.org
Fri May 29 22:33:11 BST 2009


I know that Potlatch uses a different API than the main XML based API.. 
but I've noticed something really quite weird.

http://www.openstreetmap.org/?lat=51.85278&lon=-4.89509&zoom=15&layers=B000FTF

If you look at the railway line heading to the southwest from Clarbeston 
Road, in Potlatch it's a nice curve that follows the NPE maps nicely, 
but in JOSM - and what gets rendered via mapnik, tiles at home and so on is 
containing far less nodes.

The way in question is 33116814. JOSM thinks it's only 4 nodes, yet if 
if use the data overlay, and view the data that way, it's a good number 
of nodes in it.

It looks like somehow most of the nodes used are in someway invalid, and 
only potlatch's AMF api is able to return them from the database.

--
Simon Hewison




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