[mkgmap-dev] Problems with Russian landuse multipolygons

Sat May 1 21:32:41 BST 2010

Hi WanMil, all,

Someone has apparently started to import landuse multipolygons in 
Russia. I keep getting errors for them. Some multipolygons only have 
"outer" lines.  Here are a few examples:

http://www.openstreetmap.org/browse/relation/594151
http://www.openstreetmap.org/browse/relation/594273
http://www.openstreetmap.org/browse/relation/595581
http://www.openstreetmap.org/browse/relation/595858
http://www.openstreetmap.org/browse/relation/597112
http://www.openstreetmap.org/browse/relation/597218
http://www.openstreetmap.org/browse/relation/598234
http://www.openstreetmap.org/browse/relation/598527

These are fully within the Geofabrik extract that I have been using.  I 
recently edited the Geofabrik polygon so that no lake multipolygons or 
natural=coastline islands are severed.

Here is one example that is drawn over an existing island multipolygon:

http://www.openstreetmap.org/browse/relation/598998

If you download this multipolygon and some surroundings, you should soon 
get the idea what is wrong with these imports.

If the multipolygon handler cannot be made any more robust, then I would 
appreciate some option that would ignore certain types of multipolygons.

Best regards,

	Marko