On Mon, Aug 20, 2012 at 09:13:10AM -0400, Michael Droettboom wrote: > I've filed an issue for this here: > > https://github.com/matplotlib/matplotlib/issues/1110 >
I think I have sussed out what's going on here. See PR: https://github.com/matplotlib/matplotlib/pull/1145 Basically, on creating a new Axes object, if a shared axes was passed in, a copy of the current axes scale is executed. This overwrites the current formatter. > > Mike > > On 08/19/2012 05:55 PM, Eric Firing wrote: > >On 2012/08/19 10:31 AM, Christopher Graves wrote: > >>Hi > >> > >> > >>I do not think this is the expected behavior. First, run the following: > >> > >> > >>from pylab import * > >> > >>plot([0,3],[0.2,0.7]) > >> > >>ax1 = gca() > >> > >>ax1.set_yscale('log') > >> > >>gca().yaxis.set_major_formatter(FormatStrFormatter('$%g$')) > >> > >>#ax2 = ax1.twiny() > >> > >>#ax2.set_xlim(ax1.get_xlim()) > >> > >>show() > >> > >> > >>You will see that the y-axis is log10rithmic and axis labels are 0.1 and > >>1 rather than 10^-1 and 10^0, due to the use of set_major_formatter(). > >> > >> > >>Now uncomment the 2 commented lines and run it again. It seems that upon > >>applying a twiny(), the set_major_formatter() action is removed and the > >>y-axis is now displayed as 10^-1 and 10^0. Or more likely, the y-axis is > >>"overwritten" with a new y-axis present in ax2. One can add another > >>gca().yaxis.set_major_formatter(FormatStrFormatter('$%g$')) before the > >>show() and it works as intended. However, it seems like unexpected > >>behavior to "lose" the formatting when twinning the axis to add a > >>secondary x-axis. Any advice or agreement that this could be a bug? > >Yes, I think this is a bug. > > > >Eric > > > >> > >>Best, > >> > >>Chris > >> > > > >------------------------------------------------------------------------------ > >Live Security Virtual Conference > >Exclusive live event will cover all the ways today's security and > >threat landscape has changed and how IT managers can respond. Discussions > >will include endpoint security, mobile security and the latest in malware > >threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > >_______________________________________________ > >Matplotlib-users mailing list > >Matplotlib-users@lists.sourceforge.net > >https://lists.sourceforge.net/lists/listinfo/matplotlib-users > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Damon McDougall http://www.damon-is-a-geek.com B2.39 Mathematics Institute University of Warwick Coventry West Midlands CV4 7AL United Kingdom ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
