[mkgmap-dev] Mkgmap dropping data

Tue Aug 2 08:31:35 BST 2011

I had another go with splitter this morning and it worked out. But it's
strange.
If I split Hungary into 3-4 pieces, the eastern part is usually OK. But even
if I split Hungary into 33 pieces I get bad areas on the western part or
near Budapest. I splitted it to 36 and it worked with this command:
java -Xmx1024m -jar splitter.jar --max-nodes=110000
c:\osm\osmdata\hungary.osm.pbf

But why is it that Eastern Hungary is OK with a million nodes? Is it because
it's not so well mapped and it has less relations and/or errors? Can I
somehow rejoin the parts to have less areas?

It would be useful if mkgmap would send a message which areas it couldn't
render and why.

Another question:
Was I totally wrong using Osmosis to split the data or is there a method
which works with routing? To have counties is a bit nicer. I used the
following (obviously breaks data):
call osmosis.bat --read-pbf c:\osm\osmdata\hungary.osm.pbf
--bounding-polygon file=c:\osm\osmdata\county_boundaries\pest.poly
completeWays=no completeRelations=no clipIncompleteEntities=true --write-xml
c:\osm\osmdata\counties\pest.osm

2011/8/1 Carlos Dávila <cdavilam at orangecorreo.es>

>  El 01/08/2011 22:36, Zsolt Bertalan escribió:
> > Hello
> >
> > I try to render a Garmin map of Hungary from OSM data with my own
> > rules and typ file. At first I used the Tile Splitter, but whatever I
> > did, I didn't manage to render a good map.
> splitter should work fine with Hungary data and you'll get inter-tile
> routing working. Can you provide the command you used to split the data?
> > Then I extracted county borders (Hungary has 19 counties), and used
> > Osmosis with polygon borders to split the data. I managed it. But
> > meanwhile CLC data was imported (I think this might be the culprit)
> > and I can't do it again. Four counties have only half the data in
> > Mapsource. They are not big, so I don't think that the size is the
> > problem.
> > I use MapSetToolkit with cgpsMapper to upload to MapSource. Here is an
> > example of how I use mkgmap:
> > java -Xmx1024M -ea -jar mkgmap.jar --charset=latin2 --route
> > --style-file=c:\osm\mkgmap\resources\styles\herrbert --family-id=5000
> > -c c:\osm\osmdata\counties\template.args --tdbfile --description="OSM
> > Hungary" 50000.typ
> If I remember right, -c option should be the last in you command line.
> >
> > I fI use the route option, cpreview crashes.
> >
> > I used osmosis with the following options:
> > completeWays=no completeRelations=no clipIncompleteEntities=true
> > I think this is not optimal for such a map, because I can't route
> > between two counties (ways are split without a common node). But what
> > are the best options?
> >
> > What am I doing wrong? If you need any more detail I'd be glad to
> > provide it.
>
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