20000925: Composing a vectory for GVECT

On Mon, 25 Sep 2000, J. Correia wrote:

> i am trying to display the deformation field using vectors...ie trying to
> plot the axis of dilitation...ive tried to do the raw calculation all at
> once but iget a "stack is empty" error...
> i used gdwind and wrote 1/2 * atan2(d2,d1) (only in gempak language) as
> the gvect. any idea?
> jimmyc
> 
> 
> 

Jimmy,
Without showing me what your GVECT equation is, I'd have no clue,
other than to say above that the output from ATAN2() is a scalar, not
a vector. So, the possible problem is you haven't composed a vector
to plot in GVECT.

Steve Chiswell
Unidata User Support