[OSM-newbies] Hollow buildings

[Stefan Sassenberg]

Hello,

I have the same problem.

The wiki page tells me to "Create the outer way for the area in the 
clockwise direction.", but the outer way (of the forest) already exists. 
How can I find out if it is clockwise or anti-clockwise if I don't know 
which point is the starting point?

Stefan


Thomas Wood schrieb:
> Hi,
> This is a quite common question, since no specific polygon type exists
> currently in the OSM database, we use a relation to describe polygons
> with holes.
> http://wiki.openstreetmap.org/index.php/Relations/Multipolygon
> This wiki page gives a nice walkthrough on how to create holey polygons
> for each of the editors.
> 
> 
> On Mon, 2008-06-09 at 12:45 +0100, Russ Phillips wrote:
>> Hi,
>>
>> I'm trying to map Southsea Castle [1], but I'm not sure how best to do it,
>> because it consists of an outer keep/wall with an inner courtyard. (think
>> of a ring doughnut)
>>
>> How should I mark it up so that it is rendered as a building with a hollow
>> core?
>>
>> Russ
>>
>> [1]
>> http://www.openstreetmap.org/?lat=50.778145&lon=-1.088634&zoom=18&layers=B00FT
>>
>>
>>
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>