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On the y-axis it's possible to choose between elevation and speed but it would be possible to add the ability to choose between distance and time on the x-axis.
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(10.10.2013, 16:22)edvds Wrote: On the y-axis it's possible to choose between elevation and speed but it would be possible to add the ability to choose between distance and time on the x-axis.
It's quite some effort but doable. Why would you want to do it? What's the value of having the elevation or speed over time profile?
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Christian
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Interresting feature request...
x-axis by air-to-air distance is, let's say... 'non-linear'...
x-axis by time may be useful for photo taggers to sort their pictures based on a linear time based profile.
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Matthias
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Sorry for the late answer.
In a graph, with the distance in the x-as, data gets distorted because the lower the speed (the lower the increase in distance) the more that data gets shrunk compared to the parts where you moved with a higher speed.
For example: you walk one hour at 10km/h, then you rest (stay at the same place) for one hour and then again you walk for one hour at 10km/h.
In a graph with the distance in the x-as the part you rested for one hour won't be visible because the distance didn't increase.
In a graph with the time in the x-as it is clear that one third of the time you stayed at the same place.
ps: thx for the superb track editor !
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(27.10.2013, 13:01)edvds Wrote: In a graph, with the distance in the x-as, data gets distorted because the lower the speed (the lower the increase in distance) the more that data gets shrunk compared to the parts where you moved with a higher speed.
Ok, got it. Implementing time as x-axis has two difficulties
- good usability, precise naming on the surface (currently there is just 'Show profile', I'd like to find better names that horizontal and vertical axis when extending this)
- making backing structures more flexible while keeping the optimizations alive that make the profile view work for huge tracks
I could need some help there.
(27.10.2013, 13:01)edvds Wrote: ps: thx for the superb track editor !


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Christian
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I think I forgot to state that this feature has been implemented a long time ago.
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Christian