> I would like to plot the line which interconnects the GPS track points
> (latitude and longitude coordinates) recorded by GPS receiver. It is
> not so difficult. What I am not able to do is to change the color of
> the line according to the speed reached on the way from point to
> point. I would like to use the color of the line to differentiate the
> speed as following:
> speed <=50km/h
> speed >50 and <=90km/h
> speed >90 and <=130km/h
> speed >130km/h
It can be done, but not with a simple plot command. See the attached
demo; I think it is similar to what you want to do.
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