[Matplotlib-users] detect axes belonging to a colorbar

[Joseph Fox-Rabinovitz]

On a related note, I was thinking that doing something like
`fig.findobj(mpl.colorbar.ColorbarBase)` would help you, but it raises an
error instead:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File
"/home/jfoxrabi/miniconda3/lib/python3.5/site-packages/matplotlib/artist.py",
line 975, in findobj
    if matchfunc(c):
  File
"/home/jfoxrabi/miniconda3/lib/python3.5/site-packages/matplotlib/colorbar.py",
line 307, in __init__
    self.set_label(label)
  File
"/home/jfoxrabi/miniconda3/lib/python3.5/site-packages/matplotlib/colorbar.py",
line 459, in set_label
    self._set_label()
  File
"/home/jfoxrabi/miniconda3/lib/python3.5/site-packages/matplotlib/colorbar.py",
line 448, in _set_label
    self.ax.set_ylabel(self._label, **self._labelkw)
AttributeError: 'Rectangle' object has no attribute 'set_ylabel'

What is wrong about the way I am trying to use `findobj`?

Here is the code I was testing with, for reference:

import numpy as np
import matplotlib as mpl
from matplotlib import pyplot as plt
x = np.arange(10)
y = np.arange(10)
X, Y = np.meshgrid(x, y)
z = X * Y
ax = plt.pcolor(X, Y, z)
plt.colorbar()
fig = ax.figure
fig.findobj(mpl.colorbar.ColorbarBase)



    -Joe


On Fri, Aug 19, 2016 at 10:26 AM, Benjamin Root <ben.v.root at gmail.com>
wrote:

> No, I don't think there is a way, really. From the perspective of the
> figure object, the colorbar looks just like another axes object. There
> might be a trick that might work in some cases, but they would be highly
> fragile. It would be better to just capture the colorbar object directly,
> somehow.
>
> Ben Root
>
> On Wed, Aug 17, 2016 at 5:01 AM, <aeuii at posteo.de> wrote:
>
>> Hi,
>>
>> I would like to iterate over fig.axes and apply some changes to regular
>> axes and skip those belonging to colorbars.
>>
>> What's the best way (having only fig object) to detect if an axis
>> belongs to a colorbar or not?
>>
>> Thanks for an advice.
>>
>> Best regards,
>> Stefan
>>
>> _______________________________________________
>> Matplotlib-users mailing list
>> Matplotlib-users at python.org
>> https://mail.python.org/mailman/listinfo/matplotlib-users
>>
>
>
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