[Matplotlib-users] X axis layout differences between matplotlib 0.98.5.2 and 0.98.3

[Dave C. <cou...@ho...>]

Hi

I am developing on a Desktop install Ubuntu 9.04 machine with matplotlib 0.98.5.2, 
and running the scripts on a Server install Ubuntu 8.10 machine with matplotlib 0.98.3.

I have found that the X axis layout for the same script varies between the two machines.
Both have standard matplotlib installs using apt-get. I haven't made any tweaks.

Rather than go into great detail about the problem, please see the script below and links to the resulting png files.
I hope the png files tell the story.

http://waka.freehostia.com/python/date_axis_scaling_test.py

http://waka.freehostia.com/python/date_axis_scaling_test_0_98_3.png

http://waka.freehostia.com/python/date_axis_scaling_test_0_98_5_2.png

The plot produced by matplotlib 0.98.3 isn't what I want.
Id like the plot to go edge to edge on the x axis grid, as the matplotlib 0.98.3 version does.

Help and advise would be appreciated.
PS : I'm new to python & matplotlib  

######################################################################################
#!/usr/bin/env python
import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as plt
from datetime import datetime, timedelta

version   = matplotlib.__version__
HOURSBACK = 365 * 24
now       = datetime.now()
valueList = []
dateList  = []

for i in range(HOURSBACK):
    hoursBack = timedelta( hours = (HOURSBACK - i) )
    then = now - hoursBack
    valueList.append( i )
    dateList.append( then )

fig = plt.figure( figsize=(12, 9), dpi=100 )
ax  = fig.add_subplot(111)
ax.plot(dateList, valueList)
plt.title('Date axis scaling test for matplotlib version : %s' % ( version  ) )
plt.grid(True)
plt.ylabel('Widgets')
plt.xlabel('Date')
fig.autofmt_xdate()

plt.savefig( "date_axis_scaling_test_%s.png" % version.replace('.','_'), format='png' )    

quit()
######################################################################################


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