[OSM-newbies] Interior ring with Potlatch?

Steve Bennett stevagewp at gmail.com
Thu Dec 10 03:36:04 GMT 2009


On Thu, Dec 10, 2009 at 2:25 PM, David Fawcett <david.fawcett at gmail.com>wrote:

> I just added a building outline using Potlatch and drew a second area
> polygon to delineate an open area in the building.  I am not sure how
> to tie this second polygon to the first one to create the interior
> ring in the polygon.  When I drew them, I went clockwise with the
> exterior ring and counter-clockwise with the interior ring. I am not
> sure if this makes any difference.  Google didn't turn up any good
> answers.
>
> The building is at:
> http://www.openstreetmap.org/?lat=44.994395&lon=-93.30004&zoom=18
>
>
I'm curious too. The workaround I've used is to make the whole thing one
shape, by splitting through one bit. Hard to describe, but imagine a C
shape. Now make the ends of the C closer and closer until they touch - it
looks like an O, but it's actually a C.

Or, um, do what Richard said. :)

Steve
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/newbies/attachments/20091210/cb547166/attachment.html>


More information about the newbies mailing list