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Axes3D set_xbound() doesn't work on negative lower limit with rc_context(), "text.usetex": True when %matplotlib notebook is enabled #18110

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chudur-budur opened this issue Jul 29, 2020 · 5 comments
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Axes3D set_xbound() doesn't work on negative lower limit with rc_context(), "text.usetex": True when %matplotlib notebook is enabled #18110

chudur-budur opened this issue Jul 29, 2020 · 5 comments
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topic: text/usetex

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@chudur-budur
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chudur-budur commented Jul 29, 2020 •
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Bug report

Axes3D's set_xbound() (or set_ybound(), set_zbound()) doesn't work on negative lower limit while using with rc_context() and "text.usetex": True. It does not work when %matplotlib notebook is enabled, but it works on %matplotlib inline

However if the bounds are set in positives, it works, otherwise it won't.

Code for reproduction

%matplotlib notebook

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

A = np.random.random((1000,3))
with plt.rc_context({"text.usetex": True, "font.size": 12}):
    fig = plt.figure()
    ax = Axes3D(fig)
    ax.scatter(A[:,0], A[:,1], A[:,2])
    ax.set_xbound([-1,1])
    ax.set_ybound([-1,1])
    ax.set_zbound([-1,1])
    plt.show()

Outcome
A fail case

Another case

%matplotlib notebook

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

A = np.random.random((1000,3))
with plt.rc_context({"text.usetex": True, "font.size": 12}):
    fig = plt.figure()
    ax = Axes3D(fig)
    ax.scatter(A[:,0], A[:,1], A[:,2])
    ax.set_xbound([0,5])
    ax.set_ybound([0,5])
    ax.set_zbound([0,5])
    plt.show()

Outcome
The bounds work, however if you look at the axes tick-labels, you can see that only 0s are in tex, others are not.
Another fail case

Expected outcome
The bounds should work when the lower-bounds are negative, also all the axes tick-labels in the second case should all be in tex.

Matplotlib version

  • Operating system: posix Darwin 19.6.0
  • Matplotlib version: 3.1.3
  • Matplotlib backend (print(matplotlib.get_backend())): nbAgg
  • Python version: 3.7.5 (default, Nov 1 2019, 02:16:23) [Clang 11.0.0 (clang-1100.0.33.8)]
  • Jupyter version (if applicable):
    • jupyter core : 4.6.3
    • jupyter-notebook : 6.0.3
    • qtconsole : 4.6.0
    • ipython : 7.12.0
    • ipykernel : 5.1.4
    • jupyter client : 6.0.0
    • jupyter lab : not installed
    • nbconvert : 5.6.1
    • ipywidgets : 7.5.1
    • nbformat : 5.0.4
    • traitlets : 4.3.3
  • Other libraries:
@chudur-budur chudur-budur changed the title Axes3D's set_xbound() doesn't work on negative lower limit with rc_context(), "text.usetex": True when %matplotlib notebook is enabled Axes3D's set_xbound() doesn't work on negative lower limit with rc_context(), "text.usetex": True when %matplotlib notebook is enabled Jul 29, 2020
@chudur-budur chudur-budur changed the title Axes3D's set_xbound() doesn't work on negative lower limit with rc_context(), "text.usetex": True when %matplotlib notebook is enabled Axes3D set_xbound() doesn't work on negative lower limit with rc_context(), "text.usetex": True when %matplotlib notebook is enabled Jul 29, 2020
@WeatherGod
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I wonder if this bug and #18112 are actually the result of the same bug?

@timhoffm
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I wonder if this bug and #18112 are actually the result of the same bug?

Check by setting

ax._autoscaleXon = False
ax._autoscaleYon = False
ax._autoscaleZon = False

if that fixes the issue, it's most likely the same cause.

@chudur-budur
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chudur-budur commented Jul 30, 2020 •
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I wonder if this bug and #18112 are actually the result of the same bug?

Check by setting

ax._autoscaleXon = False
ax._autoscaleYon = False
ax._autoscaleZon = False

if that fixes the issue, it's most likely the same cause.

No, it does not fix the issue in this post, not sure about #18112 though.

@QuLogic
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QuLogic commented Jul 30, 2020

In the console for the first one, we see:

RuntimeError: latex was not able to process the following string:
b'$\\u22121.00$'

Here is the full report generated by latex:
This is pdfTeX, Version 3.14159265-2.6-1.40.20 (TeX Live 2019) (preloaded format=latex)
 restricted \write18 enabled.
entering extended mode

(~/.cache/matplotlib/tex.cache/ebebfc358d4c45dc8bf78a97d857a8f8.tex
LaTeX2e <2018-12-01>
(/usr/share/texlive/texmf-dist/tex/latex/base/article.cls
Document Class: article 2018/09/03 v1.4i Standard LaTeX document class
(/usr/share/texlive/texmf-dist/tex/latex/base/size10.clo))
(/usr/share/texlive/texmf-dist/tex/latex/type1cm/type1cm.sty)
(/usr/share/texlive/texmf-dist/tex/latex/base/textcomp.sty
(/usr/share/texlive/texmf-dist/tex/latex/base/ts1enc.def
(/usr/share/texlive/texmf-dist/tex/latex/base/ts1enc.dfu)))
(/usr/share/texlive/texmf-dist/tex/latex/base/inputenc.sty)
(/usr/share/texlive/texmf-dist/tex/latex/geometry/geometry.sty
(/usr/share/texlive/texmf-dist/tex/latex/graphics/keyval.sty)
(/usr/share/texlive/texmf-dist/tex/generic/oberdiek/ifpdf.sty)
(/usr/share/texlive/texmf-dist/tex/generic/oberdiek/ifvtex.sty)
(/usr/share/texlive/texmf-dist/tex/generic/ifxetex/ifxetex.sty)

Package geometry Warning: Over-specification in `h'-direction.
    `width' (5058.9pt) is ignored.


Package geometry Warning: Over-specification in `v'-direction.
    `height' (5058.9pt) is ignored.

)
No file ebebfc358d4c45dc8bf78a97d857a8f8.aux.
(/usr/share/texlive/texmf-dist/tex/latex/base/ts1cmr.fd)
*geometry* driver: auto-detecting
*geometry* detected driver: dvips

! Package inputenc Error: Unicode character − (U+2212)
(inputenc)                not set up for use with LaTeX.

See the inputenc package documentation for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.14 ...tsize{12.000000}{15.000000}{\sffamily $−
                                                  1.00$}
No pages of output.
Transcript written on ebebfc358d4c45dc8bf78a97d857a8f8.log.

I do not understand why this only triggers in the notebook, though.

@QuLogic
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QuLogic commented Jul 30, 2020

Ah wait, that was because my notebook wasn't from the environment and using older Matplotlib.

Current versions have \DeclareUnicodeCharacter{2212}{\ensuremath{-}} in the preamble and should work, except that set_xbound is broken due to #18112 (you can use set_xlim, et al, instead.) The second example also works correctly.

Please update to 3.3.0, but I believe this is fixed.

@QuLogic QuLogic closed this as completed Jul 30, 2020
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@WeatherGod @QuLogic @chudur-budur @timhoffm