matplotlib-users Mailing List for matplotlib

I have slightly modified the example from
http://matplotlib.sourceforge.net/faq/howto_faq.html#automatically-make-room-for-tick-labels
in order to demonstrate what I mean.

It works with the manual string tick labels but not with regular
auto-generated numerical ones.

Maybe someone knows how to fix this? And I *really* think this should
work automatically. As a compromise, maybe an rcParam would help in
order to keep the current dumb behavior...

Thanks in advance,
Daniel



import matplotlib.pyplot as plt
import matplotlib.transforms as mtransforms

fig = plt.figure(figsize=(5,3))
ax = fig.add_subplot(111)

#ax.plot(range(10))
#ax.set_yticks((2,5,7))
#labels = ax.set_yticklabels(('really, really, really', 'long', 'labels'))
ax.plot(range(100),[100000]*100)
labels = ax.get_yticklabels()

def on_draw(event):
   bboxes = []
   for label in labels:
       bbox = label.get_window_extent()
       print bbox
       # the figure transform goes from relative coords->pixels and we
       # want the inverse of that
       bboxi = bbox.inverse_transformed(fig.transFigure)
       bboxes.append(bboxi)

   # this is the bbox that bounds all the bboxes, again in relative
   # figure coords
   bbox = mtransforms.Bbox.union(bboxes)
   if fig.subplotpars.left < bbox.width:
       # we need to move it over
       fig.subplots_adjust(left=1.1*bbox.width) # pad a little
       fig.canvas.draw()
   return False

fig.canvas.mpl_connect('draw_event', on_draw)

plt.show()

On Fri, Feb 25, 2011 at 5:34 PM, Philipp A. <fly...@we...> wrote:

> 2011/2/25 Philipp A. <fly...@we...>
>
> 2011/2/25 Benjamin Root <ben...@ou...>
>>
>>> On Fri, Feb 25, 2011 at 8:09 AM, Philipp A. <fly...@we...> wrote:
>>>
>>>> hi,
>>>> Axes3D from mpl_toolkits.mplot3d does not override set_*ticklabels.
>>>> this bug<http://sourceforge.net/tracker/index.php?func=detail&aid=2874110&group_id=80706&atid=560720>is about the issue.
>>>> to get a crude replacement, i have to do the following:
>>>>
>>>> for x, s in enumerate(ticks):
>>>>> ax.text3D(x, -.1, -.5, s)
>>>>> for a in ax.w_xaxis.get_ticklabels():
>>>>> a.set_visible(False)
>>>>>
>>>>
>>>>  is there a way to do better and hack my values into the real tick
>>>> labels (i bet they are drawn internally the same as text3D, but there is no
>>>> way to access the values)?
>>>>
>>>>
>>> In matplotlib in the development branch, I am able to call
>>> ax.w_xaxis.set_ticklabels() (or ax.w_yaxis, or ax.w_zaxis) and have the
>>> ticks show up appropriately.  I have not tested earlier versions of
>>> matplotlib, though.  Which version are you using?
>>>
>>> Admittedly, the control of the ticks is very poor in mplot3d.  I hope to
>>> improve that over the next several months.
>>>
>>> Ben Root
>>>
>>
>> i use 0.99.3 both in university and at home, but somehow at home,
>> matplotlib complains about ValueError: Unknown projection '3d' at home.
>>
>> i’ll try 1.0.1 and report if it works.
>>
>
> update: i’ll see if a dev build does the trick tomorrow, as a local build
> of 1.0.1 doesn’t show the x/yticklabels and there doesn’t exist a function
> named set_zticklabels.
>

Phillipp,

The ability to call ax = fig.gca(projection='3d') was new for version
1.0.0.  This morning, I also noticed that functions like "set_zticklabels()"
did not exist.  I currently have a patch submitted for that and it should be
merged into the git repository tonight.  In the meantime, you can always do
something like:

ax.w_zaxis.set_ticklabels()

The functions like ax.set_zticks() merely call that function for the
appropriate axis.

Ben Root