The recent version of the mpl now supports multi-column legend. http://matplotlib.sourceforge.net/examples/pylab_examples/legend_demo3.html
Thus, it would be great if you to try the new version, and if your problem is still not solved, please report it again. Regards, -JJ On Sun, Apr 12, 2009 at 11:12 PM, Vasileios Kontorinis <bkontori...@gmail.com> wrote: > Jae-Joon hi, > > I am a newbie with matplolib. I need a horizontal legend because my > figures are pretty wide and I need to automate the process of generating it. > > Since matplotlib does not support horizontal legends I am hacking around it. > > I modified your example below. So the following works: > > from matplotlib.pylab import * > from matplotlib.legend import Legend > from matplotlib.patches import Rectangle > > #fig = figure() > ax = gca() > pl_list = [] > for i in range(10): > pl, = ax.plot(random(10)) > pl_list.append(pl) > > xleg,yleg= 0.5,0.5 > > l1 = Legend(ax, pl_list[0:1], "0", loc=1) > hg1, wd1 = l1.get_frame().get_height(), l1.get_frame().get_width() > l2 = Legend(ax, pl_list[1:2], "1", loc=1) > hg2, wd2 = l2.get_frame().get_height(), l2.get_frame().get_width() > l3 = Legend(ax, pl_list[2:3], "2", loc=1) > hg3, wd3 = l3.get_frame().get_height(), l3.get_frame().get_width() > l4 = Legend(ax, pl_list[3:4], "3", loc=1) > hg4, wd4 = l4.get_frame().get_height(), l4.get_frame().get_width() > > total_height = hg1 > total_width = wd1+wd2+wd3+wd4 > > print total_height, total_width > > l1 = Legend(ax, pl_list[0:1], "0", loc=(xleg, yleg)) > l2 = Legend(ax, pl_list[1:2], "1", loc=(xleg+wd1/5, yleg)) > l3 = Legend(ax, pl_list[2:3], "2", loc=(xleg+(wd1+wd2)/5, yleg)) > l4 = Legend(ax, pl_list[3:4], "3", loc=(xleg+(wd1+wd2+wd3)/5, yleg)) > l1.get_frame().set_visible(False) # make background frame of legends > invisible > l2.get_frame().set_visible(False) > l3.get_frame().set_visible(False) > l4.get_frame().set_visible(False) > > # make a large background frame > rect = Rectangle((xleg, yleg), 0.45, 0.05, # adjust these values (in > normalized axes coordinate) > fc="w", ec="k", > transform=ax.transAxes, zorder=4) > ax.add_artist(rect) > ax.add_artist(l1) > ax.add_artist(l2) > ax.add_artist(l3) > ax.add_artist(l4) > > > The basic idea is to create a legend with the line and label I need and then > use its dimensions to create the background frame. > > The problem is that the height and width I get are in different units that > the normalized axes coordinates and I do not know how > > to properly transfrom them which leads to the hacky /5 , otherwise the > legends are off the figure. > > Any suggestions on how I can automate this part? > > Thanks in advance. > > > Jae-Joon Lee > Thu, 09 Oct 2008 12:21:56 -0700 > > Although I think it is possible to calculate the bounding box of the > all legends automatically, > Here is a manual way. > > > from matplotlib.patches import Rectangle > > l1.get_frame().set_visible(False) # make background frame of legends > invisible > > l2.get_frame().set_visible(False) > > # make a large background frame > rect = Rectangle((0.05, 0.75), 0.3, 0.2, # adjust these values (in > normalized axes coordinate) > fc="w", ec="k", > > transform=ax.transAxes, zorder=4) > ax.add_artist(rect) > > I hope this help, > > -JJ > > > > > On Thu, Oct 9, 2008 at 2:43 PM, José Alexandre Nalon <[EMAIL PROTECTED]> > wrote: >> Hello, > >> >> Em Thursday 09 October 2008 13:46:52 Jae-Joon Lee escreveu: >>> Meanwhile, you may try to make multiple legends as a posible workarounds. >> >> Thanks for your answer. That did the trick, and the figure > >> looks more or less as I wanted. It would look exactly as I >> wanted if I could remove the border from the legends and >> draw a box around the legends. How could I do that? >> >> (I apologize if this seems trivial. I use matplotlib a lot, > >> but standard functions always seem to do what I need, so I >> don't go deep in its behaviour). >> >> -- >> José Alexandre Nalon >> [EMAIL PROTECTED] >> >> ------------------------------------------------------------------------- > >> This SF.Net email is sponsored by the Moblin Your Move Developer's >> challenge >> Build the coolest Linux based applications with Moblin SDK & win great >> prizes >> Grand prize is a trip for two to an Open Source event anywhere in the >> world > >> http://moblin-contest.org/redirect.php?banner_id=100&url=/ >> _______________________________________________ >> Matplotlib-users mailing list > >> Matplotlib-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/matplotlib-users > >> > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great > prizes > > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by: > High Quality Requirements in a Collaborative Environment. > Download a free trial of Rational Requirements Composer Now! > http://p.sf.net/sfu/www-ibm-com > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > > ------------------------------------------------------------------------------ This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. 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