On Monday 03 February 2014, Dave F. wrote: > > When mapping canals I've always drawn a closed polygon & used the tag > waterway=riverbank when I've wanted to give them width. This is as > per the wiki recommendation: > http://wiki.openstreetmap.org/wiki/Tag:waterway%3Dcanal. > > A user has recently amended them all to natural=water & water=canal. > Is there a specific reason for this? Does it correct any problems or > give any advantages for rendering etc?
The advantage is that you can determine it is a canal from the polygon alone. With waterway=riverbank you have to find the corresponding centerline first (assuming it exists). -- Christoph Hormann http://www.imagico.de/ _______________________________________________ Tagging mailing list [email protected] https://lists.openstreetmap.org/listinfo/tagging
