[mkgmap-dev] Bugs in r2478: Use outer polygon tags if the multipolygon is tagged with name only

Fri Feb 8 17:12:13 GMT 2013

Hi Gerd,

Precompiled boundaries could be a solution, but the main problem is mkgmap r2478 is messing things up.
rel.1338717 doesnt have any admin_level=2 tags at all but r2478 copies them somewhere 
from the international borders and puts them in the middle of the country.
If it happens with boundary relations it could happen to other relations too...?

> Onderwerp: Re: [mkgmap-dev] Bugs in r2478: Use outer polygon tags if the multipolygon is tagged with name only
> Hi Minko,
> 
> splitters keep-complete option doesn't care much about boundaries
> (means it doesn't keep them complete).
> I think you have to use precompiled boundaries.
> 
> Gerd
> 
> 
> 
> Date: Fri, 8 Feb 2013 18:03:17 +0100
> From: ligfietser at online.nl
> To: mkgmap-dev at lists.mkgmap.org.uk
> Subject: Re: [mkgmap-dev] Bugs in r2478: Use outer polygon tags if the
> multipolygon is tagged with name only
> 
> 
> I did some other tests, the geofabrik extract from Bulgaria didnt show
> those "borders",
> maybe because the international boundaries were incomplete.
> I also downloaded the border relation from Bulgaria as well as
> rel.1338717 (bg.osm)
> and process this file with mkgmap 2479, there were no issues at all.
> 
> In my first testmap I used the europe extract, and the strange thing
> is that not all ways
> from rel. 1338717 were converted into borders but only in one tile,
> see attachment.
> So maybe it is related to the splitter keep-complete process in
> combination with r2478?
> 
> I have uploaded this tile for further analysis:
> http://mijndev.openstreetmap.nl/~ligfietser/test/10133095.zip
> http://mijndev.openstreetmap.nl/~ligfietser/test/bg.osm
> 
> The splitter coordinates are
> 10133095: 1951744,1124352 to 1990656,1206272
> # : 41.879883,24.125977 to 42.714844,25.883789
> 
> 
> > I see on my maps that all ways from
> > http://www.openstreetmap.org/browse/relation/1338717
> > are rendered as country border now (mkgmap r-2479)
> >
> > This relation contains only two tags:
> > name = Hires coverage of Bing in Bulgaria
> > type = multipolygon
> >
> > No other tags, and yet it gets a admin_level=2 somehow.
> > I think the relation contains ways with admin_level2 borders and
> > gets
> > 'contamined' with those tags.
> >
> > Tested it with the default styles as well as mine, both render all
> > those lines as international border.
> > In mkgmap r2459 those lines were not rendered at all (as it should
> > be), so i think there is a serious bug here.
> >
> > I also get marine borders at some borders inland now (tagged with
> > maritime=yes but they dont have those tags at all).
> >
> > > Use outer polygon tags if the multipolygon is tagged with name
> > > only
> > >
> > > Quite a lot of mps are errorneously tagged with name only. This
> > > was
> > > ignored by the mp algorithm some time ago but at any point of time
> > > it
> > > disappeared. Fixing that now.
> > _______________________________________________
> > mkgmap-dev mailing list
> > mkgmap-dev at lists.mkgmap.org.uk
> > http://lists.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
> 
> _______________________________________________ mkgmap-dev mailing
> list mkgmap-dev at lists.mkgmap.org.uk
> http://lists.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev at lists.mkgmap.org.uk
> http://lists.mkgmap.org.uk/mailman/listinfo/mkgmap-dev