matplotlib-users Mailing List for matplotlib

Hello,

I'm running the following configuration 
Python 2.7.6 (default, Feb  5 2015, 00:21:43) 
IPython 3.0.0-b1 
matplotlib '1.4.2'
The version of the notebook server is 3.0.0-b1-ee6223a.
This is running on linux 3.16.0-0.bpo.4-amd64 #1 SMP Debian
3.16.7-ckt2-1~bpo70+1 (2014-12-08) x86_64 GNU/Linux

I set up matplotlib as follows:
import matplotlib as mpl
import matplotlib.pyplot as plt
%matplotlib nbagg


Then running this command:
>> plt.plot(range(100))
only displays a box (with resize, zoom, pan, etc controls)  - but does not
show the figure itself (see figure). 
<http://matplotlib.1069221.n5.nabble.com/file/n44812/Untitled.png> 
Also, when I click on any part of the figure, I get a slew of the following
message on stderr:
[IPKernelApp] ERROR | No such comm: 29281512bed24f259572bc6f0ea8d249


On the other hand,
>> plt.plot(range(100))
>> plt.show() 
shows nothing at all.

However, this 
>>%matplotlib inline
>>plt.plot(range(100))
displays the figure as expected.

What is going on ? How can I enable the new notebook backend for matplotlib
?

Thanks.




--
View this message in context: http://matplotlib.1069221.n5.nabble.com/Matplotlib-backend-nbagg-does-not-show-figure-in-iPython-Notebook-tp44812.html
Sent from the matplotlib - users mailing list archive at Nabble.com.

Bug report made under issue 4067
<https://github.com/matplotlib/matplotlib/issues/4067>.

Thanks for confirming the bug!
​

2015-02-05 22:43 GMT+01:00 Benjamin Root <ben...@ou...>:

> Yup, that is a real bug... self._facecolors2d doesn't get set until the
> first draw. It really shouldn't be accessing _facecolors2d because the
> elements can change order depending on the rotation of the display. Could
> you file the bug report, please?
>
> Thanks!
> Ben Root
>
>
> On Thu, Feb 5, 2015 at 4:32 PM, Oliver <oli...@gm...> wrote:
>
>> Greetings,
>>
>> before I submit an issue I usually try to confirm on the mailing list
>> that the issue I'm experiencing is not just on my system.
>> At the moment, I've tested this only on my personal laptop, but in
>> virtual environments.
>> One venv has mpl version 1.3.1, the other has just been installed (with
>> only numpy, matplotlib and ipython) and thus has mpl version 1.4.2.
>>
>> In both environments the following script fails:
>>
>> import numpy as np
>> import matplotlib.tri as mtri
>> import matplotlib.pyplot as plt
>> from mpl_toolkits.mplot3d import Axes3D
>>
>> y,x = np.ogrid[1:10:100j, 1:10:100j]
>> z = x**2-x*y
>> z2 = np.cos(x)**3 - np.sin(y)**2
>> fig = plt.figure()
>> ax = fig.add_subplot(111, projection='3d')
>> r = ax.plot_surface(x,y,z2, cmap='hot')
>> r.get_facecolors()
>>
>> It fails on the last line with the following traceback:
>>
>> ---------------------------------------------------------------------------
>> AttributeError                            Traceback (most recent call
>> last)
>> <ipython-input-13-de0f41d662cd> in <module>()
>> ----> 1 r.get_facecolors()
>>
>> /home/oliver/.virtualenvs/mpl/local/lib/python2.7/site-packages/mpl_toolkits/mplot3d/art3d.pyc
>> in get_facecolors(self)
>>     634
>>     635     def get_facecolors(self):
>> --> 636         return self._facecolors2d
>>     637     get_facecolor = get_facecolors
>>     638
>>
>> AttributeError: 'Poly3DCollection' object has no attribute '_facecolors2d'
>>
>> Can anyone confirm on their system that this is a bug?
>> I have the same error appearing for `get_facecolor()` (without the s) by
>> the way.
>>
>> Regards,
>>
>> Oliver
>>
>>
>> ------------------------------------------------------------------------------
>> Dive into the World of Parallel Programming. The Go Parallel Website,
>> sponsored by Intel and developed in partnership with Slashdot Media, is
>> your
>> hub for all things parallel software development, from weekly thought
>> leadership blogs to news, videos, case studies, tutorials and more. Take a
>> look and join the conversation now. http://goparallel.sourceforge.net/
>> _______________________________________________
>> Matplotlib-users mailing list
>> Mat...@li...
>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>
>>
>

Yup, that is a real bug... self._facecolors2d doesn't get set until the
first draw. It really shouldn't be accessing _facecolors2d because the
elements can change order depending on the rotation of the display. Could
you file the bug report, please?

Thanks!
Ben Root


On Thu, Feb 5, 2015 at 4:32 PM, Oliver <oli...@gm...> wrote:

> Greetings,
>
> before I submit an issue I usually try to confirm on the mailing list that
> the issue I'm experiencing is not just on my system.
> At the moment, I've tested this only on my personal laptop, but in virtual
> environments.
> One venv has mpl version 1.3.1, the other has just been installed (with
> only numpy, matplotlib and ipython) and thus has mpl version 1.4.2.
>
> In both environments the following script fails:
>
> import numpy as np
> import matplotlib.tri as mtri
> import matplotlib.pyplot as plt
> from mpl_toolkits.mplot3d import Axes3D
>
> y,x = np.ogrid[1:10:100j, 1:10:100j]
> z = x**2-x*y
> z2 = np.cos(x)**3 - np.sin(y)**2
> fig = plt.figure()
> ax = fig.add_subplot(111, projection='3d')
> r = ax.plot_surface(x,y,z2, cmap='hot')
> r.get_facecolors()
>
> It fails on the last line with the following traceback:
> ---------------------------------------------------------------------------
> AttributeError                            Traceback (most recent call last)
> <ipython-input-13-de0f41d662cd> in <module>()
> ----> 1 r.get_facecolors()
>
> /home/oliver/.virtualenvs/mpl/local/lib/python2.7/site-packages/mpl_toolkits/mplot3d/art3d.pyc
> in get_facecolors(self)
>     634
>     635     def get_facecolors(self):
> --> 636         return self._facecolors2d
>     637     get_facecolor = get_facecolors
>     638
>
> AttributeError: 'Poly3DCollection' object has no attribute '_facecolors2d'
>
> Can anyone confirm on their system that this is a bug?
> I have the same error appearing for `get_facecolor()` (without the s) by
> the way.
>
> Regards,
>
> Oliver
>
>
> ------------------------------------------------------------------------------
> Dive into the World of Parallel Programming. The Go Parallel Website,
> sponsored by Intel and developed in partnership with Slashdot Media, is
> your
> hub for all things parallel software development, from weekly thought
> leadership blogs to news, videos, case studies, tutorials and more. Take a
> look and join the conversation now. http://goparallel.sourceforge.net/
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
>

Greetings,

before I submit an issue I usually try to confirm on the mailing list that
the issue I'm experiencing is not just on my system.
At the moment, I've tested this only on my personal laptop, but in virtual
environments.
One venv has mpl version 1.3.1, the other has just been installed (with
only numpy, matplotlib and ipython) and thus has mpl version 1.4.2.

In both environments the following script fails:

import numpy as np
import matplotlib.tri as mtri
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D

y,x = np.ogrid[1:10:100j, 1:10:100j]
z = x**2-x*y
z2 = np.cos(x)**3 - np.sin(y)**2
fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')
r = ax.plot_surface(x,y,z2, cmap='hot')
r.get_facecolors()

It fails on the last line with the following traceback:
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-13-de0f41d662cd> in <module>()
----> 1 r.get_facecolors()

/home/oliver/.virtualenvs/mpl/local/lib/python2.7/site-packages/mpl_toolkits/mplot3d/art3d.pyc
in get_facecolors(self)
    634
    635     def get_facecolors(self):
--> 636         return self._facecolors2d
    637     get_facecolor = get_facecolors
    638

AttributeError: 'Poly3DCollection' object has no attribute '_facecolors2d'

Can anyone confirm on their system that this is a bug?
I have the same error appearing for `get_facecolor()` (without the s) by
the way.

Regards,

Oliver

Hi all,

I often have scripts that make a lot of plots, and I would like to be
able to create the plots and then have a UI tool that shows a list of
their titles, click on the title and have the plot be drawn in a
window.  So far, I have been able to use PyQt to create a UI with a
list box and a Widget to display plots.  What I can't seem to figure
out is how to make a bunch of plots and then have the Window update.

So, in psuedo code:

list of plots = []

Go through datasets:
        plots.append(plot(dataset))

For plot in plots:
       add plot title to UI list, position in list is reference back
into list of plots

On UI:
        click on plot name/title
        widget draws plot


So - basically like docked plots, except there is just a list to the
side instead (much cleaner IMHO)

I haven't been able to find any examples from googling.  Has any one
been able to do this or seen examples?


Any help or suggestions are appreciated!

Thanks!

:

Awesome work! Full credit to Tom who has driven this release.

The nbagg backend is looking great - some pretty swish new features thanks
to hard work from Steven Silvester and Thomas Caswell!

On 2 February 2015 at 10:58, Jens Nielsen <jen...@gm...> wrote:

> Thanks Tom,
>
> I ran the test suite on OSX 10.10 with both python 2.7.8 and 3.4.2
> including the tex and QT4 tests that are skipped on Travis.
> Everything passes as expected.
>
> Jens
>
> Mon Feb 02 2015 at 5:38:32 AM skrev Thomas Caswell <tca...@gm...>:
>
> Evening all,
>>
>> I have tagged the first release candidate for v1.4.3 (https://github.com/
>> matplotlib/matplotlib/releases/tag/v1.4.3rc1).
>>
>> Although this is a bug-fix release, a fair amount of work has gone into
>> making the nbagg (interactive figures in ipython notebooks) feature
>> complete compared to the other interactive backends.
>>
>> Please kick the tires and give it a try!  If there are no major issues,
>> the plan is to target 1.4.3 for next weekend.
>>
>> The mac build has been started and (if I understand how these things
>> work) should be available to install via
>> pip install -f http://wheels.scikit-image.org --pre matplotlib  soon.
>>
>> For linux anaconda users, packages for 2.6/2.7 python  on my binstar
>> channel (conda install -c https://conda.binstar.org/tacaswell
>> matplotlib). The py3k builds have some issue with invalid syntax in pyqt4,
>> if some knows how to build these, please let me know.
>>
>>
>> Tom
>>
>>
>> ------------------------------------------------------------
>> ------------------
>> Dive into the World of Parallel Programming. The Go Parallel Website,
>> sponsored by Intel and developed in partnership with Slashdot Media, is
>> your
>> hub for all things parallel software development, from weekly thought
>> leadership blogs to news, videos, case studies, tutorials and more. Take a
>> look and join the conversation now. http://goparallel.sourceforge.net/
>> _______________________________________________
>> Matplotlib-devel mailing list
>> Mat...@li...
>> https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
>>
>
>
> ------------------------------------------------------------------------------
> Dive into the World of Parallel Programming. The Go Parallel Website,
> sponsored by Intel and developed in partnership with Slashdot Media, is
> your
> hub for all things parallel software development, from weekly thought
> leadership blogs to news, videos, case studies, tutorials and more. Take a
> look and join the conversation now. http://goparallel.sourceforge.net/
> _______________________________________________
> Matplotlib-devel mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
>
>