[mkgmap-dev] mkgmap creates polygons that break Mapsource panning and also routing in some zoomlevels as well as crashing the GPS

Thu Sep 3 13:29:18 BST 2009

No it did not fix it.

However I think the bug lies elsewhere. I think mkgmap is putting too 
much information into one tile/small area (even though total tilesize is 
only 7.4MB).

Following on the tries from yesterday I found several possibilities to 
not have the bug:
1. delete the first half of my lines style-file and then compile. Bingo 
map working
2. delete the second half of my lines style-file and then comile. Bingo 
map working again.
--- So something here is very strange. If I don't delete about 1/3 off 
all lines it will not work.

3. delete 1/3 of the lines in my polygons style-file or delete this last 
section:
leisure=*  & fixme!=yes & import!=*                            [0x2a 
resolution 24]
tourism=*  & fixme!=yes & import!=*                            [0x2b 
resolution 24]
sport=* & fixme!=yes & import!=* &sport!=skiing &sport!=ski        [0x2c 
resolution 24]
landuse=* & landuse!=commercial     & fixme!=yes & import!=*     [0x2d 
resolution 24]
natural=*  & fixme!=yes & import!=*                            [0x2e 
resolution 24]
amenity=*      & fixme!=yes & import!=*                        [0x2f 
resolution 24]

4. Use a typfile with fewer Polygon definitions.

Therefore I am currently completely clueless about the reason for the crash.

Please find here: 
http://openmtbmap.org/downloads/mkgmap_overload_bug.zip (22MB)

1. a style including mkgmap.jar (with some patches, but essentially you 
only need the continue patch plus the make routable relations patch). If 
I use Thilo's mkgmap.jar from here ( 
http://osm.arndnet.de/20090902/radkarte-style.zip ) the same problem 
appears:
My commandline for mkgmap is written in commands.txt. The osm data 
splitted from geofabrik austria tile with splitter.jar is also attached. 
So you can compile yourself to find the bug.

Not this style is quite heavy, it needs about 5x as much calculation 
time compared to default style-file. So if you're on a old computer it 
might need 15minutes for compiling (like my old laptop), on new quadcore 
it should be done in around 1-2min.

2. there is also a mapsource installation in the subfolder, just install 
by doubleclicking (with admin rights) install_openmtbmap_at.bat
Or create a gmapsupp with gmaptool for your gps by doubleclicking on 
create_gmapsupp.bat

Felix

Mark Burton wrote:
> Hi Felix,
>
> Just committed a bug fix that could be relevant. Please see if 1165
> behaves any differently.
>
> Cheers,
>
> Mark
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