That is perfectly normal. The speed in GPX has 'm/s' as its unit. To find back the km/h value you have to multiply by 3.6 . Hence, we have to perform the following operation:
0,044 m/s * 3.6 s.km/(h.m) = 0,1584 km/h.
Perfectly in line with your findings ;-).
Kind regards
Mario
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Hi Mario,
thx for your "ultra-fast" answer :-))
Unfortunally, there is no GPX unit-indicator for the speed. In other applications the field is used as km/h.
Have you any Links for GPX-Standards ?
greetings from Germany
Joe
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Hi Mario,
when using Export GPX, the Speed-Field content is strange. 0,159 km shows as 0,044. What goes wrong ?
greets Joe
Hi Joe
That is perfectly normal. The speed in GPX has 'm/s' as its unit. To find back the km/h value you have to multiply by 3.6 . Hence, we have to perform the following operation:
0,044 m/s * 3.6 s.km/(h.m) = 0,1584 km/h.
Perfectly in line with your findings ;-).
Kind regards
Mario
Hi Mario,
thx for your "ultra-fast" answer :-))
Unfortunally, there is no GPX unit-indicator for the speed. In other applications the field is used as km/h.
Have you any Links for GPX-Standards ?
greetings from Germany
Joe
Sure, here is the documentation explained:
http://www.topografix.com/gpx_manual.asp#speed
I meant: specification explained.
Also, in GPX1.1 there is no speed field - there is only one in GPX1.0!
Extensions allow adding other fields but since I do not know of a commonly used public extension, I am not using extension any myself.
Hi Mario,
thx a lot !
m/s means = meter per second I had mistakenly miles in mind.
With this info I get on well more - much more success with BT474.
Joe