[OSM-newbies] Polylines vs Polygons

John-Michael Wiley jmwiley at microsoft.com
Mon Dec 6 16:51:50 GMT 2010

What about feature types like natural or power which don’t seem to have a default type? For those should you always set the area='yes'.


-----Original Message-----
From: newbies-bounces at openstreetmap.org [mailto:newbies-bounces at openstreetmap.org] On Behalf Of Andre Engels
Sent: Monday, December 06, 2010 8:46 AM
To: newbies at openstreetmap.org
Subject: Re: [OSM-newbies] Polylines vs Polygons

On Mon, Dec 6, 2010 at 5:02 PM, John-Michael Wiley <jmwiley at microsoft.com> wrote:

> One of the things I am confused about is how to tell if a way is a 
> polyline with the last node simply equal to the first (track) vs a 
> polygon. Should all areas be tagged with areas="yes" or does it depend on the feature type.
> For example all highways should be polylines unless area="yes" and all 
> buildings should be considered polygons.

It depends on the feature type. If it is a feature that is normally either a point or an area feature, the area=yes is not needed (it's area, btw, not areas), if it is a feature that is normally a line feature, then it is.

André Engels, andreengels at gmail.com

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