I sent this to the -users list a little over a week ago - now resending to -devel list against the latest svn.
best, -- Paul Ivanov 314 address only used for lists, off-list direct email at: http://pirsquared.org | GPG/PGP key id: 0x0F3E28F7 Paul Ivanov, on 2010-12-23 09:47, wrote: > Václav Šmilauer, on 2010-12-23 14:51, wrote: > > Hi there, > > > > when I use twinx() to have y1 and y2 axes and set ticklabel_format > > style to 'sci' on the y2 axis, ticks on the y2 are properly numbered, > > but the "1e-5" that is supposed to be atop y2 appears on the top of > > y1 instead. When both y1 and y2 use the exponents, they overwrite > > each other -- a minimal example (result attached in pdf): > > > > import pylab > > > > pylab.plot([0,1e-2,2e-2,3e-2],[1e3,5e3,6.1e3,1e3],'g-') > > > > pylab.ticklabel_format(style='sci',scilimits=(0,0),axis='both') # this is > > not necessary to show the bug > > > > pylab.twinx() > > > > pylab.plot([1e-2,2e-2,3e-2,4e-2],[2e-5,3e-5,0,-1e-5],'r-') > > > > pylab.ticklabel_format(style='sci',scilimits=(0,0),axis='both') # makes > > 1e-5 appear on the left instead of on the right > > > > pylab.show() > > > Hi Václav, > > thanks for the bug report. As a temporary workaround - use > > plt.gca().yaxis.set_offset_position('right') > > Committers: the patch attached fixes this problem. I thought that > there might be a similar problem for twiny() - but ax.xaxis does > not appear to have .set_offset_position() method. > > > I've had this issue with versions .99, 1.0.0, running on Linux > > (Ubuntu, versions 9.04 through to 10.10). > > me too, and I kept forgetting to report it. > > > PS. what's wrong with the sf.net bugzilla? I was not able to post the > > issue there -- > > this I do not know. >
Index: CHANGELOG
===================================================================
--- CHANGELOG (revision 8871)
+++ CHANGELOG (working copy)
@@ -1,3 +1,5 @@
+2011-01-02 Fixed twinx scientific notation offset being misplaced.
+
2010-12-29 Implment axes_divider.HBox and VBox. -JJL
2010-11-22 Fixed error with Hammer projection. - BVR
Index: lib/matplotlib/axes.py
===================================================================
--- lib/matplotlib/axes.py (revision 8871)
+++ lib/matplotlib/axes.py (working copy)
@@ -7391,6 +7391,7 @@
frameon=False)
ax2.yaxis.tick_right()
ax2.yaxis.set_label_position('right')
+ ax2.yaxis.set_offset_position('right')
self.yaxis.tick_left()
ax2.xaxis.set_visible(False)
return ax2
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