Equal axes using quiver

Hi folks,

I am trying to use quiver with equal axes. I have not been successful. I suspect it is something simple such as not grabbing the correct axes.

If I use figure(figsize(7,7)), the plot seems to be a square, but it is not. This is apparent when I run the script using:
  python quiver6.py -dPS
and make two printouts which I then overlay with one rotated by 90 degrees.

I am using matplotlib 0.87.1 with numarray and GTKAgg backend.

Here is my code:

from pylab import *

an = linspace(0,2*pi,100)

X,Y = meshgrid( arange(-pi,pi,.2),arange(-pi,pi,.2) )
U = cos(X)
V = sin(Y)

quiver( X,Y, U, V, color=True )
ax = gca() # Return the current axes
ax.set_xlim(-5, 5)
ax.set_ylim(-5, 5)

savefig('quiver6', orientation = 'landscape')


Ms. Carol A. Leger
SRI International Phone: (650) 859-4114
333 Ravenswood Avenue G-273
Menlo Park, CA 94025 e-mail: leger@...392...