Hi, Here is a testcase :

> a=range(10) b=rand(10) plot(a,b,'x') axis([0.,1e-7,0.,1.])

> Segmentation fault

Ouch -- I can repeat this with the minimal example

from pylab import *

plot([1,2,3], 'o')

xlim(0.,1e-7)

show()

In GTK you get

File "/home/jdhunter/debs/matplotlib/usr/lib/python2.4/site-packages/matplotlib/backends/backend_gdk.py", line 95, in draw_arc

self.gdkDrawable.draw_arc(gc.gdkGC, True, x, y, w, h, a1, a2)

OverflowError: long int too large to convert to int

and in *Agg you get the segfault, though PS and SVG work. It looks

like the data points are being transformed out to infinity, which is

breaking agg badly somewhere. I'll look into it.

> Thanks for your job on matplotlib Xavier.

Thanks for the report.

JDH