[mkgmap-dev] Optimizing MapSplitterFrom GerdP gpetermann_muenchen at hotmail.com on Fri Nov 14 21:03:37 GMT 2014
Hi Andrzej, the 1st patch removed too much, attached is a 2nd version. It also contains a few rows to create smaller sub divisions for dense areas. You may experiment with the value in wantedSize. It is an estimate for the number of bytes in one sub div. Gerd mapsplit-mini-v2.patch <http://gis.19327.n5.nabble.com/file/n5824396/mapsplit-mini-v2.patch> popej wrote > Hi Gerd, > > I have compiled the same map with your patch, file is here: > http://files.mkgmap.org.uk/download/225/29483020.7z > > Map is a bit smaller and really has less subdivisions, see comparison: > fist compilation 29483019.img > level 4: resolution 17, subdivisions 1 > level 3: resolution 18, subdivisions 4 > level 2: resolution 20, subdivisions 35 > level 1: resolution 22, subdivisions 221 > level 0: resolution 24, subdivisions 367 > > patched 29483020.img > level 4: resolution 17, subdivisions 1 > level 3: resolution 18, subdivisions 4 > level 2: resolution 20, subdivisions 33 > level 1: resolution 22, subdivisions 202 > level 0: resolution 24, subdivisions 340 > > I can measure a small increase in zoom speed in my nuvi, like 5-10%, but > this could be measurement error. > > -- > Best regards, > Andrzej > _______________________________________________ > mkgmap-dev mailing list > mkgmap-dev at .org > http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev -- View this message in context: http://gis.19327.n5.nabble.com/Optimizing-MapSplitter-tp5823702p5824396.html Sent from the Mkgmap Development mailing list archive at Nabble.com.
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