Armin M. Warda schrieb: > Hi Andew, Hi all! > thanks for your Ruby-Script, this solves my problem! > > http://highearthorbit.com/projects/geolocation/gpx.rb > > To process one particular file generated by Maemo-Mapper I had to add abs() > to the sqrt() call, see: > > http://armin-warda.de/gpx.rb > http://armin-warda.de/Track-1 > > Btw. I removed the redundant count variable, added track segment length > output, and changed it from miles to km ;-)
I do not want to start nitpicking here but that solution is rather inaccurate. It might serve as a first rough estimation but it neglects the fact that the earth is not a perfect sphere. The used so called ellipsoid model in GPS is WGS84 and should be taken into account. There is no formula for calculating the distance on such an ellipsoid but there are several algorithms to do so - sorry I do not have one at hand right now... > regards, Armin. Cheers nils faerber -- kernel concepts Tel: +49-271-771091-12 Dreisbachstr. 24 Fax: +49-271-771091-19 D-57250 Netphen Mob: +49-176-21024535 -- _______________________________________________ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
