From: Eric Firing <efiring@ha...>  20060822 18:01:05

Flavio Coelho wrote: > Hi, > > I am tring to figure out how to use the c argument to the quiver2 function. > > I want to be able to color my arrows proportionally to their size. > > I have tried this and it doesn' t work as I imagined: > > c = sqrt((array(u)array(x))**2+(array(v)array(y))**2) The length of the arrow is proportional to sqrt(u**2 + v**2), not to sqrt((ux)**2 + (vy)**2). Is the reason you are not getting what you expect? Eric > > quiver2(x,y,u,v,c) > > the docstring on quiver2 is not clear on how c works, any help will be > appreciated. 