[OSM-dev] Mapnik: black transparent tiles

Darafei Praliaskouski me at komzpa.net
Wed Mar 21 13:03:44 GMT 2012

В сообщении от 21 марта 2012 15:57:21 автор marqqs at gmx.eu написал:
> Hello,
> once in a while, Mapnik creates black tiles. For example:
> http://openfiremap.org/?zoom=14&lat=48.11357&lon=11.52722&layers=B0000
> Does anybody know the reason for this behaviour?
You need to either a) ues png instead of png256 compression or b) use hextree 
algorythm instead of default octree.

Komяpa, OSM BY Team

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