twinx makes a separate axes and zorders are only meaningful within a same axes. Because ax2 is added to the figure later than the original axes, artists in ax2 are always above others.
I don't think there is an easy way to make zorder work between several axes, unless you somehow merge them into a single axes. You may try my (a bit experimental) helper class made for this purpose. http://dl.getdropbox.com/u/178748/mpl/parasite_axes2.py import matplotlib.pyplot as plt from parasite_axes2 import SubplotHost f = plt.figure(2) ax = SubplotHost(f, 1, 1, 1) f.add_subplot(ax) ax.plot([20,30], [0, 5], color="red", lw=5, zorder=10) ax2=ax.twinx() ax2.grid(ls="-", lw=5, zorder=-1) ax2.set_axisbelow(True) plt.show() -JJ On Sun, Jan 18, 2009 at 7:48 AM, Olle EngdegÄrd <o...@fysast.uu.se> wrote: > > Hi, > > Does the zorder work between twin axis? I can't get lines on the first > axis to be on top of the second grid: > > > plot([20,30], [0, 5], color="red", lw=5, zorder=10) > ax2=twinx() > grid(ls="-", lw=5, zorder=-1) > ax2.set_axisbelow(True) > title("Why doesn't the read line go above the second axis?") > > Cheers, > Olle > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by: > SourcForge Community > SourceForge wants to tell your story. > http://p.sf.net/sfu/sf-spreadtheword > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users