[OSM-dev] Ways with 40k nodes, was: osmosis pgsql schema

Frederik Ramm frederik at remote.org
Fri Oct 31 10:44:44 GMT 2008


Florian Lohoff wrote:
> Its 2^15 because it signed - and yes - somebody managed to get abovE:

This definitely has to stop. We need to (a) find all ways with more than 
a few thousand nodes and break them down, and (b) educate users that 
they shouldn't do such evil things. Imagine the poor sod who opens a 
little rectangle in JOSM just to find he has to wait for ages to 
download 40k nodes! This slows down so many things.

(And what's more, once someone creates a way with 50.001 nodes, no 
bounding box containing even one node of that way will be downloadable 
through the API.)

I know that shortcomings in the renderers still make it attractive for 
mappers to create giant polygons but we cannot allow this to get out of 

Any comments? JonB perhaps ;-)?


Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00'09" E008°23'33"

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