John,

I noticed that when plotting sine waves (simple_plot.py for example)

with the gtk backend that the lowest points are not plotted.

So I wrote a test script to plot a square, the result is that the left

and top edges are plotted and the bottom and right edges are clipped off

(I can pan the view to display the missing lines). I can't think of any

reason why you would plot data points and then expect them to be clipped

off, so to me it looks like an off-by-one error.

Test program:

from matplotlib.matlab import *

figure(1)

x = arange(0, 10+1, 1)

plot(x, x*0+10, 'r-',

x, x*0, 'r-',

x*0, x, 'r-',

x*0+10, x, 'r-')

show()

Regards,

Steve