[Matplotlib-users] Possible bug in axvline

[Tony M. <Ton...@jp...>]

axvline does not appear to work correctly. It appears to change the plot axes.

For example:

import matplotlib
import pylab as PLT
>>>  x
array([ 0.,  1.,  2.,  3.])
>>>  y
array([ 2.,  3.,  5.,  6.])
>>>  PLT.plot(x,y)
[<matplotlib.lines.Line2D instance at 0x51aa828>]
>>>  PLT.axis([0.0,3.0,0.0,5.0])
[0.0, 3.0, 0.0, 5.0]
>>>  PLT.axvline(1.5)
<matplotlib.lines.Line2D instance at 0x51c1300>
>>>  PLT.axis()
[0.0, 3.0, 0.0, 6.0]

***NOTE changed plot axes!

>>>  matplotlib.__version__
'0.87.2'

The call to axvline changes the axis values. Seems to me it should not do that.

-Tony

-- 
Tony Mannucci
Supervisor, Ionospheric and Atmospheric Remote Sensing Group
  Mail-Stop 138-308,                     Tel > (818) 354-1699
  Jet Propulsion Laboratory,              Fax > (818) 393-5115
  California Institute of Technology,     Email > Ton...@jp...
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  Pasadena, CA 91109