[Gnuplot-info] variable colors possible with plot with vectors?

[markjoe <na...@ma...>]

Hi everyone,

For plotting wind direction above my plots I use something like: 

plot ....
  '20080416_wind.gpd' axes x2y2 with vectors lt -1 title 'Wind @60m'

which gives me nice black arrows. Now I want to extend this trying to show
the wind speed also by means of coloring the arrows (from white to black for
example). I experimented with 3dpm and by introducing something like:
linecolor variable and using an extra column but no luck.

Can somebody tell whether it is possible or not, and if so, give the magic
line. (I'm using 4.2)

Thanks! Mark


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