[OSM-talk] (no subject)

[Thomas Walraet]

Bone Killian a écrit :
> What is the official method for creating a river? 

There is no official method for OSM tagging ;)


> The Susquehanna river runs
> through my city.  It is big and convoluted enough that I don't think marking a
> linear way with natural=river is going to be good enough.  Should I make it an
> area natural=water and treat is as though it is a very long, narrow lake?
> 
> I'm also not sure how to deal with the many islands on the river.  I assume I
> would create an enclosed way of some sort?

For the Seine river on Paris, I used a series of natural=water areas :
http://www.openstreetmap.org/index.html?lat=48.85335872098916&lon=2.3539768140772646&zoom=14

My areas are a bit small I think... It's not optimal, but you can't make 
a single area for the whole river.

You can look on the above link how area are connected. This way, there 
is a little overlapping surface, each way is "linear" (all segment in 
the same direction) and it's easy to merge two area as one.

It display good with osmarender but not in mapnick because area borders 
are shown...


This is an acceptable method for good-looking map, but not for 
navigation use...