Re: [Matplotlib-users] why legend does not show in matplotlib-1.2.1 & py2.7

[Jae-Joon L. <lee...@gm...>]

I do not have any access to mpl 0.98 so I cannot tell for sure. My guess is
that you have been using a feature that has not been intended, that has
fixed at some point. The first argument to legend should be a list of
artists. And pie2010 is a tuple of a list of patches and a list of texts,
i.e., they are not compatible with the current implementation of legend.
Maybe the below is what you wanted?

plt.legend( (pie2010[0]), ...)

Regards,

-JJ



On Fri, May 24, 2013 at 6:19 AM, Paul Hobson <pmh...@gm...> wrote:

> Sorry I have to be so brief, but just like the error says, you fed the
> legend function the wedges returned by the pie command. But legend can't
> handle wedges. As the proxy artist tutorial hints, you need to feed it
> rectangles created manually (i.e., outside of any plotting commands).
>
> Hope that gets you started,
> -paul
>
>
> On Wed, May 22, 2013 at 8:06 AM, oyster <lep...@gm...> wrote:
>
>> the following code runs ok with py2.4 and matplotlib.0.98.3
>> however no legend appears with py2.7.3 and matplotlib-1.2.1/1.3. and I get
>> [quote]
>> e:\prg\py\python-2.7.3\lib\site-packages\_matplotlib\matplotlib\legend.py:629:
>> U
>> serWarning: Legend does not support [<matplotlib.patches.Wedge object at
>> 0x03842
>> 0F0>, <matplotlib.patches.Wedge object at 0x03842530>,
>> <matplotlib.patches.Wedge
>>  object at 0x03842930>, <matplotlib.patches.Wedge object at 0x03842D30>,
>> <matplo
>> tlib.patches.Wedge object at 0x038B0150>]
>> Use proxy artist instead.
>>
>>
>> http://matplotlib.sourceforge.net/users/legend_guide.html#using-proxy-artist
>>
>>   (str(orig_handle),))
>> e:\prg\py\python-2.7.3\lib\site-packages\_matplotlib\matplotlib\legend.py:629:
>> U
>> serWarning: Legend does not support [<matplotlib.text.Text object at
>> 0x03842310>
>> , <matplotlib.text.Text object at 0x03842750>, <matplotlib.text.Text
>> object at 0
>> x03842B50>, <matplotlib.text.Text object at 0x03842F50>,
>> <matplotlib.text.Text o
>> bject at 0x038B0370>]
>> Use proxy artist instead.
>>
>>
>> http://matplotlib.sourceforge.net/users/legend_guide.html#using-proxy-artist
>>
>>   (str(orig_handle),))
>> [/quote]
>>
>> what's the matter? thanks
>>
>> [code]
>> #coding=utf-8
>> from pylab import *
>>
>> val2010 = [2, 10, 20, 15, 3]
>>
>> figure()
>>
>> pie2010=pie(val2010, labels=[u'%i persons' % i for i in val2010])
>>
>> plt.legend( (pie2010), [u'<60', u'60~70', u'70~80', u'80~90',
>> u'90~100'], loc = 'best', bbox_to_anchor = (0.90, 0.75) )
>> axis('equal')
>>
>> show()
>> [/code]
>>
>>
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