> If you want to have a legend for PolyCollection, you may use a proxy
> artist.
>
> http://matplotlib.sourceforge.net/users/legend_guide.html#using-proxy-artist
>
Thanks for the link! Although, it seems that legend does not support
PolyCollection at all:
"Remember that some pyplot commands return artist not supported by
legend, e.g., fill_between() returns PolyCollection that is not
supported."
so that even trying to use a proxy artist results in an error (shown
at bottom), with the code here:
------------------------------
listOfThingsPlotted = []
listOfLegendLabels = []
for column in sorted(yValues):
temp = ax.fill_between(xValues, yValues[column], label=column)
listOfThingsPlotted.append(temp)
listOfLegendLabels.append(column)
legend = plt.legend
(listOfThingsPlotted,listOfLegendLabels,bbox_to_anchor=(1.25, 1),
shadow=True, fancybox=True)
------------------------------
Error:
------------------------------
Traceback (most recent call last):
File "/cms/cmsprod/bin/prodJobMonitorPlots_matplotlib.py", line
117, in <module>
plotStackedJobsVsTime(inputFile, outputFile, outputTitle)
File "/cms/cmsprod/bin/prodJobMonitorPlots_matplotlib.py", line 93,
in plotStackedJobsVsTime
legend = plt.legend
(listOfThingsPlotted,listOfLegendLabels,bbox_to_anchor=(1.25, 1),
shadow=True, fancybox=True) # Make legend
File "/afs/hep.wisc.edu/cms/sw/python/x86/2.5.4/lib/python2.5/site-
packages/matplotlib-0.99.1.1_r0-py2.5-linux-i686.egg/matplotlib/
pyplot.py", line 2437, in legend
ret = gca().legend(*args, **kwargs)
File "/afs/hep.wisc.edu/cms/sw/python/x86/2.5.4/lib/python2.5/site-
packages/matplotlib-0.99.1.1_r0-py2.5-linux-i686.egg/matplotlib/
axes.py", line 4044, in legend
self.legend_ = mlegend.Legend(self, handles, labels, **kwargs)
File "/afs/hep.wisc.edu/cms/sw/python/x86/2.5.4/lib/python2.5/site-
packages/matplotlib-0.99.1.1_r0-py2.5-linux-i686.egg/matplotlib/
legend.py", line 304, in __init__
self._init_legend_box(handles, labels)
File "/afs/hep.wisc.edu/cms/sw/python/x86/2.5.4/lib/python2.5/site-
packages/matplotlib-0.99.1.1_r0-py2.5-linux-i686.egg/matplotlib/
legend.py", line 582, in _init_legend_box
handlebox.add_artist(handle)
File "/afs/hep.wisc.edu/cms/sw/python/x86/2.5.4/lib/python2.5/site-
packages/matplotlib-0.99.1.1_r0-py2.5-linux-i686.egg/matplotlib/
offsetbox.py", line 475, in add_artist
a.set_transform(self.get_transform())
AttributeError: 'NoneType' object has no attribute 'set_transform'
------------------------------------------------------------------------------
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