k127 at gmx.de
Sun Aug 22 17:55:55 BST 2010
I'd like to create a proposal about mapping whole (intermittent, )
river areas rather than just waterbodies. This enables the map user to
see which area is affected by regular maximum water level of a river as
well as the the area the river potentially moves crossways.
a cross section example of a river:
^ natural=* / landuse=*
- natural=gravel|scree|sand etc.
Please have a look at: http://scrapy.net/osm/river_channel.png [2,3]
(not yet perfect, though maybe good to start off)
About the proposal: ..never done that. Could somebody tell me which
templates how to use etc. or even wants to do that piece of work?
I think as a prerequisite it's necessary to know what terms to use as
tag names and values.
. (main) river|stream channel
. river bed
. river bank
. etc, Compare to 
After that, but not yet of importance, my style suggestion was:
contourless area, filled with transparent pattern 
"Large flood-prone rivers often have extensive braided streams with
large extents of river shingle, pebbles and bars above the normal
water-level. At the moment there is no means of showing this in OSM. The
existing tag natural=scree was used in the Philippines whilst mapping
after flooding. This shows a quick hack (based on changes to the
landuse=quarry render rules) to mapnik to show this tag." (SK53 )
Let me know what you guys think about that!
Sources and references:
More information about the Tagging