[mkgmap-dev] Optimizing MapSplitterFrom GerdP gpetermann_muenchen at hotmail.com on Sat Nov 15 20:01:31 GMT 2014
Hi Andrzej, thanks for testing. I also think that the possible improvements are rather small. I'll try a few more changes, e.g. splitting large objects earlier, but I don't expect any big improvements. A typical case where it would help is a long diagonal line. The bbox for it is very big, and a split in the middle would produce two much smaller bboxes. Splitting an rectangle like that for the background earlier will probably not help at all. Gerd popej wrote > Hi Gerd, > > patch v3 is working. I have done some speed test on nuvi but conclusions > aren't clear. My feeling is that your original settings is a bit slower > than standard mkgmap. I have tried some values and settled to: > > LARGE_OBJECT_DIM = 8192; > int wantedSize = MAX_RGN_SIZE / 4; > > This seems to be a bit faster than standard mkgmap, maybe about 10%, > sometimes more. But redraw times aren't always repeatable and my tests > are limited to single nuvi model. I would rather say, that there is no > significant improvements. > > -- > 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-tp5823702p5824476.html Sent from the Mkgmap Development mailing list archive at Nabble.com.
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