Hi Marko, thanks for the feedback. Did you use r2888 or later together with the patch? I think the warning is produced long before it comes to the point where mkgmap decides if the polygon is big enough. I am not very familiar with the SeaGenerator algo, but I think this message is produced when incomplete data is processed and mkgmap once decided that way 242824968 encloses sea and later detects that it must be an island. A bigger problem would be the other case (island changed to sea)
Gerd > Date: Wed, 18 Dec 2013 17:17:46 +0200 > From: [email protected] > To: [email protected] > Subject: [mkgmap-dev] Bogus anti-island warnings for tiny natural=coastline > polygons > > On Tue, Dec 17, 2013 at 12:18:23PM -0800, GerdP wrote: > >@Marko: Please check if the "converting anti-island" messages are gone > >now. > > There are 20 of them for Finland after applying my filter. There could > also be valid warnings, because I have been ignoring these errors and > not adding them to my filter either. > > I checked one example: > > 2013/12/18 16:28:01 WARNING (SeaGenerator): 63240002.osm.pbf: Converting > anti-island starting at > http://www.openstreetmap.org/?mlat=60.20405&mlon=25.49942&zoom=17 into > an island as it is surrounded by water > > It looks like this is referring to the 1.5m wide islet or rock > > http://www.openstreetmap.org/way/242824968 > > which is a closed polygon, with land on the left. I think that the > proper action would be to shrink this to a single point and then discard > it, because it would be a polygon with zero area. > > Best regards, > > Marko > _______________________________________________ > mkgmap-dev mailing list > [email protected] > http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
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