Hi
I am trying to use autofmt_xdate() on graphs with more than 1 y-axis. But it
seems that even calling twinx() causes errors. On python 2.5 matplotlib 0.98
a call to twinx() seems to switch off the functioning of autofmt_xdate()
(and the labels are horizontal and mashed up). On python 2.6 and matplotlib
1.0.0 it causes a ValueError.
The following script illustrates the issue (in real life I obviously want to
do things with ax2, but it seems that even creating it causes problems). Is
there a simple working example of rotated data formats and twinx()?
robert
import datetime
import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as plt
date=[datetime.datetime(2010,1,1), datetime.datetime(2010,12,1)]
data=[1,2]
fig = plt.figure()
ax = fig.add_subplot(111)
# uncommenting the following line will lead to the problems
# ax2=ax.twinx()
ax.plot(date, data)
fig.autofmt_xdate(rotation=90)
fig.savefig("test3.png", dpi=400)
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