[mkgmap-dev] tile size?From Lambertus osm at na1400.info on Sat Mar 21 19:26:32 GMT 2009
I've added links to the template.args files on the routable Garmin map page (scroll a bit downwards). I use Mkgmap twice, once for creating the Garmin map tiles from the OSM data and once for generating the gmapsupp.img and tdb file. The first commandline is: java -Xmx2048M -jar /home/lambertus/garmin/utils/mkgmap-r983/mkgmap.jar --latin1 --description="OSM World Routable" --net --route -c template.args --series-name="OSM World Routable" The second: java -Xmx2048M -jar /home/lambertus/garmin/utils/mkgmap/mkgmap.jar --description="OSM World Routable" --product-id=53 --tdbfile --gmapsupp *324*.img Apollinaris Schoell wrote: > Hi Lambertus, > > Can you provide the splitter area.list you have used for your online > map? I have downloaded a view tiles and inter tile routing fails for a > route crossing more than 3 tiles. > I would like to compare it with my tiles based on exact same osm file to > make sure it's not the input data. > > which options are you using for mkgmap? > > thanks > > > On 20 Mar 2009, at 7:04 , Lambertus wrote: > >> I am planning to do manual splitting only if necessary and use a >> simple divide by half scheme but with horizontal or vertical selection >> when doing so (and thus have only some influence on the position of >> the split). I am certainly not planning on manually dividing the whole >> world by hand. >> >> Routing between tiles should "just work (tm)" imho so very careful >> tilesplitting should not be needed. >> >> Mirroring the maps is ofcourse no problem but they update each week >> and bandwidth is not a problem (yet, at least). So I don't know how >> effective mirroring actually is. >> >> >> Marko Mäkelä wrote: >>> Hi Lambertus, >>> On Fri, Mar 20, 2009 at 09:12:01AM +0100, Lambertus wrote: >>>> North and South America split fine with max-nodes set to 120000. >>>> Europe still gives a few errors with that setting though. See the >>>> results of a complete world splitted with the 120000 setting here: >>>> http://garmin.na1400.info/routable.html >>>> >>>> I plan to split the remaining failed tiles manually. >>> Are you planning to fine-tune the tile division by hand? If so, I would >>> suggest that you avoid splitting South Finland or North Estonia in the >>> west-east direction. Given that there could be some inter-tile routing >>> issues (suboptimal routes chosen), it would be better to have a tile >>> border >>> on the Baltic sea between Finland and Estonia. >>> I don't care which tile the Åland islands are on; they are roughly >>> halfway between Sweden and Finland anyway. Although they belong to >>> Finland, they are autonomous and tightly connected with Sweden. >>> For what it is worth, my Finnish Garmin map generated from >>> finland.osm.bz2 >>> at http://www.polkupyoraily.net/osm/ uses this areas.list: >>> 63240001: 2768896,890880 to 2916352,1472512 >>> # : 59.414063,19.116211 to 62.578125,31.596680 >>> 63240002: 2916352,890880 to 3020800,1472512 >>> # : 62.578125,19.116211 to 64.819336,31.596680 >>> 63240003: 3020800,890880 to 3266560,1472512 >>> # : 64.819336,19.116211 to 70.092773,31.596680 >>> The reasoning is that most of the population is located in the south, >>> and therefore the south must be a single tile. >>> Similarly for Estonia, most population should be in the mainland, near >>> Tallinn. You could put the Saaremaa and Hiiumaa islands on a separate >>> tile without losing any routing functionality. >>> I hope that you consider this suggestion. If it works out well, I'd >>> like to set up a mirror to your map tiles instead of generating the >>> tiles myself. (I only have a 32-bit machine on a 1 Mb/s ADSL line.) >>> Marko >>> _______________________________________________ >>> mkgmap-dev mailing list >>> mkgmap-dev at lists.mkgmap.org.uk >>> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev >> >> _______________________________________________ >> mkgmap-dev mailing list >> mkgmap-dev at lists.mkgmap.org.uk >> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev > > _______________________________________________ > mkgmap-dev mailing list > mkgmap-dev at lists.mkgmap.org.uk > http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
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