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Re: [ferret_users] Constant lenght for vectors
Hi Tony,
| I would like to plot vectors with a constant length, [...]
|
What you want is to scale the vectors according to
(us,vs) = (u,v) / |(u,v)| . In ferret,
let mag = (u*u + v*v)^0.5 !!<-- length of the vector
let us = u/mag !!<-- scaled
let vs = v/mag
vector us,vs !!<-- draw
A nice thing about this is that us and vs become "missing"
where mag == 0, so that the vector isn't drawn there.
Hope this helps,
Ryo
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