[mkgmap-dev] Incorrectly interpolated numbers in small segment of a streetFrom GerdP gpetermann_muenchen at hotmail.com on Sun Feb 9 17:24:32 GMT 2014
Hi Paulo, FYI: Garmin format uses a grid with 24 bits. That means ~ 40000km / 2^24 => ~2.38 m is the highest possible resolution at the equator. OSM precision is a few cm. Gerd Paulo Carvalho wrote > Thanks, Steve. I just wanted to make sure mkgmap would find the numbers > by > keeping them as close as possible. I'll follow your advice to take the > numbers a few meters apart, just like they are the real world. If you're > using 32-bit floats for coordinates then we indeed have to take them > apart. > I think the 32-bit resolution is 7-digit, and that translates to about 5m > at the Equator (less at higher latitudes). > > all the best, > > Paulo > > > 2014-02-09 11:55 GMT-02:00 Steve Ratcliffe < > steve at .me > >: > >> >> Hi >> >> >> On 08/02/14 13:44, Paulo Carvalho wrote: >> >>> The attached OSM file is what I'm using in my tests. I'm now able to >>> compile the map with the house numbers ok. But there is a problem >>> (bug?). Only a street called "Rua Armando Santos" has street numbers. >>> >> >> Thanks for the good example. >> >> It seems that the house numbers are very close to the road and in this >> case mkgmap mistakes the side of the road for one or two of the numbers. >> When I moved the nodes in josm just so they were the same distance >> apart as the others on the road then it worked. >> >> This is I guess because they are less than 2m apart an so appear to >> be the same in mkgmap. The work that Gerd is doing on the >> high-prec-coord branch should make it possible to fix this. >> >> I would not normally suggest changing the data, but when viewed with >> the background imagery the points don't look to be on opposite sides >> of the road, so it would perhaps be appropriate in this case. >> >> Best wishes >> >> ..Steve >> >> _______________________________________________ >> mkgmap-dev mailing list >> > mkgmap-dev at .org >> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev >> > > _______________________________________________ > 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/Incorrectly-interpolated-numbers-in-small-segment-of-a-street-tp5795742p5795825.html Sent from the Mkgmap Development mailing list archive at Nabble.com.
- Previous message: [mkgmap-dev] Incorrectly interpolated numbers in small segment of a street
- Next message: [mkgmap-dev] Incorrectly interpolated numbers in small segment of a street
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
More information about the mkgmap-dev mailing list