[Matplotlib-users] odd axis behavior

[Jin-chung H. <hs...@st...>]

When I do the following, the plot is doing something weird. It fills up a 
triangle area between first and second points, after the axis command:

>>> n = 5000.0
>>> plot([n,-49.9,-49.9,-49.99,-50,-50])
>>> axis([0,5,-50.1,-50+0.1])

This only happens at a very narrow window of boundary conditions.
If n is smaller (e.g. 4000) or if Y range is larger (e.g. set the min at -50.2 
instead of  -50.1), it becomes normal.

JC Hsu