[Gnuplot-info] Vector plot, sample length

[Mathieu P. <mat...@or...>]

Hello,

I am using gnuplot in the following way :

plot a map background using a country coastline datafile.
plot a vector field at some latitude/longitude points on the map.
Up to the point, everything is ok...

My issue is to have a scaled sample for the vector field key...

e.g. : I want to display a sample with for example "5 cm" displayed next to it, and the displayed length match a "5 cm" vector on the map... (not on the screen of course)

What would be the better way to do that ?

Regards,

Mathieu