I would expect that case (c) would still have the water flowing downhill. Even if you have a series of pumps, water in the sections between the pumps will still flow downhill, not uphill. About the only time I would expect any counterflow would be if water were to be added to a given section rapidly enough that its surface level was temporarily higher than in the upstream section, making that a downhill flow also.
-------Original Email------- Subject :Re: [Tagging] Non Proposed Features >From :mailto:nerou...@gmail.com Date :Mon Aug 30 20:44:53 America/Chicago 2010 On Mon, Aug 30, 2010 at 5:11 PM, Cartinus <carti...@xs4all.nl> wrote: > On Monday 30 August 2010 19:19:21 Nathan Edgars II wrote: >> How else would you tag water flow? > > Somewhere, probably lost in the depths of time, it was agreed that waterflow > is modeled by the direction of the waterway way without a oneway tag. > > Oops it's not lost. It's on the waterway=river and waterway=stream wiki pages. So how do you specify that (a) you mapped a waterway but don't know the direction of flow, (b) it's a stagnant channel with no real flow, or (c) it's an artificial drainage canal with flow changing based on rainfall and opening or closing of gates? _______________________________________________ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging -- John F. Eldredge -- j...@jfeldredge.com "Reserve your right to think, for even to think wrongly is better than not to think at all." -- Hypatia of Alexandria _______________________________________________ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging