Hi
This should be so simple, but I have been struggling for a long time trying
to create a square plot of exact dimensions (so a series of them can be
overlaid later), with x and y axis limits identical and set by me
(preferably without the plot limits updating automatically as I add or
delete data, but that is a separate issue), while working interactively on a
single plot using pyplot in ipython on OS X using the current enthought
distribution.
with pyplot imported as plt,
typical of what I have tried are many variations on
plt.plot(*args) with args a list of x,y
sets
fig = plt.gcf()
fig.set_size_inches(6,6,forward='True') to force a redraw
ax = plt.gca()
ax.grid(True)
plt.axis([1.0,10.0,1.0,10.0])
plt.draw()
Sometimes the x axis is set correctly, but the y axis is not, and is
typically showing more range (approximately 0.8-10.1 for example), possibly
because the plot is not square, though it is close, or because the scales
are not equal.
I have tried adding 'equal' to the plt.axis command,
and entering the values as
plt.axis(xmin=1.0,xmax=10.0,ymin=1.0,ymax=10.0)
and entering just the first three and then
plt.axis('equal')
and I have tried working with
ax.set_aspect('equal')
But, I am truly lost as I try to sort out which elements are in control.
Any help or leads would be greatly appreciated.
Scanning old archives and googling has not yet got me there.
kersey
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