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[mkgmap-dev] type=multipolygon relations

From WanMil wmgcnfg at web.de on Sat Jan 18 15:36:55 GMT 2014

Hi Gerd,

I never thought about such a case. Does it cause trouble for you with 
the new shape merger?


> Hi all,
> from time to time I stumble over mp like this:
> http://www.openstreetmap.org/relation/3318482
> It contains way 135320941 three times.
> In other cases inner ways are duplicated, and that
> really causes trouble when calculating the areas.
> I wonder why we don't remove duplicate entries when
> we process the members of mp relations. Is there
> any possible constellation where this would
> cause trouble?
> Gerd
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