Wondering how to use the BarbRenderer2D class

[adam douglas <adam.douglas@xxxxxxxx>]

Hi All,

I've just started to do some work involving the VisAD libraries and I 
was wondering how to properly construct and display the wind barbs as 
given in BarbRenderer2D.

I mangage to create data but I have NO idea how to add it ti my barb and 
then add this too a display and view it.

All help will be appreciated,

Adam.