[Tagging] trees and waterways

[John F. Eldredge]

I am using my phone at the moment, not my PC, so I can't test this.  What happens if the way, or section of a way, that you have selected has a portion mapped in one direction, and another portion mapped in the opposite direction (which could easily happen if different parts of the way had been mapped by different people)?  Do you get an error message, or do JOSM and Potlatch go by the majority direction?

-------Original Email-------
Subject :Re: [Tagging] trees and waterways
From  :mailto:pdorange at mac.com
Date  :Sun Sep 12 12:39:02 America/Chicago 2010


John F. Eldredge <john at jfeldredge.com> wrote:

> What properties of a way do you look at to determine whether it was mapped
> in the proper direction?  Do you have to check whether the node IDs
> increase in the desired direction, or is there an easier way?  Also, if
> it turns out that part or all of a way was mapped in the wrong
> direction, what is the best way of correcting that direction, short of
> deleting the problem section and remapping it?

Using JOSM it's a one click.
JOSM show the drawing direction of ways (with arrows when selected or
always depending on settings) and a simple button reverse the selected
way(s).

Potlach has a little icon with an arrow that show he "global direction"
of the selected way and the same icon reverse the way.
Not so easy but not difficult.

--
Pierre-Alain Dorange
OSM experiences : <http://www.leretourdelautruche.com/map/>


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-- 
John F. Eldredge -- john at jfeldredge.com
"Reserve your right to think, for even to think wrongly is better than not to think at all." -- Hypatia of Alexandria