[Tagging] Lakes, islands and multipolygons

Sam Vekemans acrosscanadatrails at gmail.com
Fri Oct 16 21:42:57 BST 2009

hi all,
I worked a little more off the coast of tofino


You can see where the error is..
The error was (hopefully) caused by the clock-wise/ counter clockwise switch
i did yesterday, just to see what happens.

. Its interesting to see the green islands just above it.  and just above
that.. take a look at the beach on Vargas Island.   I like how that shows

Any comments on it?


On Fri, Oct 16, 2009 at 3:45 AM, sly (sylvain letuffe) <liste at letuffe.org>wrote:

> On vendredi 16 octobre 2009, Jukka Rahkonen wrote:
> > Currently big lakes in Finland have been tagged as coastlines which is a
> > good workarounod and looks correct in slippy maps.  However, it is not
> > right, because they are not seas but just lakes.
> I would myself prefer to use something else to make it easier to tell
> appart
> sea/lake/river
> We have
> * natural=coastline
> * waterway=riverbank
> what about something like natural=lakebank or lakeline or waterline to
> define
> lake's bank
> (Then put all that in a multipolygon relation natural=water)
> > By the way, why do we call all polygons having holes as multipolygons,
> > even if they have only one outer ring? But of course they can be
> > considered as simple multipolygons.
> The "multipolygon" name of osm was probably not perfectly choosen ;-)
> It's a "describe them all" from 1 to n polygons. It's not multipolygon in
> the
> GIS sense but hey, does that matter ?
> --
> sly
> Sylvain Letuffe liste at letuffe.org
> qui suis-je : http://slyserv.dyndns.org
> _______________________________________________
> Tagging mailing list
> Tagging at openstreetmap.org
> http://lists.openstreetmap.org/listinfo/tagging
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/tagging/attachments/20091016/7e80104a/attachment.html>

More information about the Tagging mailing list