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[mkgmap-dev] render closed waterway polygons?

From Charlie Ferrero charlie at cferrero.net on Sat Oct 27 10:03:15 BST 2012


On 27 Oct 2012, at 09:26, Minko <ligfietser at online.nl> wrote:

> I understand it is not good tagging but please help me to tell Potlatch they are wrong: 
> https://trac.openstreetmap.org/ticket/4510
> 
> If I change it to correct tagging there will be someone else who notice this as "Lake" and again tag it to waterway=canal.
> There are dozens of mappers who are making this mistake and I'm tired of writing them or correcting them all.
> 
>> In general maybe it would also help to add the way-id to
>> problematic_polygons list. So mkgmap has the hole way and there is no
>> need to autoclose a way.
> 
> That is not the point. The point is that correct waterway=canals which are single lines
> are being closed too if I render it as polygons. I can think of other forms of lines that could either be polygons or lines.
> Think of highway=pedestrian or man_made=pier so I think this patch can help.
> 
Isn't the area=yes tag designed to help differentiate in these cases?


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