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

Fri Feb 8 17:06:14 GMT 2013

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.
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> mkgmap-dev at lists.mkgmap.org.uk
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