[Tilesathome] Large multipolygon relation rendering

Dirk-Lüder Kreie osm-list at deelkar.net
Fri Dec 4 18:40:32 GMT 2009


Matthias Julius schrieb:
> It just came up on talk-us that some of the large riverbank relations
> imported from NHD are rendered incorrectly by t at h.  One example is
> relation 304245.  This is somewhat huge, there are 110 outer ways with
> 500 nodes each and a couple of hundred inner ways.
> 
> AFAICT it is tagged correctly.  There is waterway=riverbank on the
> relation and no relevant tags on the ways.  As a bonus, the outer ways
> are ordered.  There were a couple of duplicate nodes that I have taken
> care of.
> 
> How does or/p deal with incompletely downloaded multipolygon relations?
> The rendering seems to be OK when there is only one gap.  But, if there
> are more osmarender seems to have problems.

Yes. One solution would be to automatically fetch the full multipoly 
relation. However getting that into the client is nontrivial.

-- 

Dirk-Lüder "Deelkar" Kreie
Bremen - 53.0901°N 8.7868°E







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