LaTeX matplotlib pgf shows no colorbar - instead shows colorbar png image filename

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I'm producing various plots with matplotlib and save them as PGF files. These are then imported in my LaTeX file and compiled using the pgf package.

The problem is, I can't seem to render colorbars for some reason. Also web searches came up empty so far, as I'm not quite sure what I'm looking for in terms of bug.

I produce my plot like this

fig = plt.figure()
gs  = gridspec.GridSpec(10, 1)
ax1 = plt.subplot(gs[:7, :])
ax2 = plt.subplot(gs[7:, :], sharex=ax1)

[...]

# plot
sc = *scatter plot of my data*
# colorbar
divider = make_axes_locatable(ax2)
cax = divider.append_axes("right", size="5%", pad=0.05)
plt.colorbar(sc, cax=cax)
# save
fig.set_size_inches(8, 5)
plt.savefig('isotropy-raw.pgf', bbox_inches='tight')

Then I get this

File Output

but upon including that in my tex file

\begin{figure}[h!]
  \centering
  \input{path/to/file/isotropy-raw.pgf}
  \caption[x]{x}
  \label{x}
\end{figure}

it compiles this

LaTeX Output

I'm a bit baffled at this point. Any help is appreciated!

EDIT:

Providing an MWE

\documentclass[11pt, a4paper, twoside, openright]{book}
\usepackage{pgf}

\begin{document}
\begin{figure}[h!]
  \centering
  \input{isotropy-raw.pgf}
  \caption{A nice caption}
 \end{figure}
\end{document}

PGF File

PNG File

Colorbar PNG

The colorbar png file is created by LaTeX upon compiling.

Can you make a minimal working example (MWE)? Are you able to share the .pgf and .png file? — samcarter_is_at_topanswers.xyz, Jun 21 '18 at 17:02
@samcarter Thank you! I will provide the files and an MWE, give me a sec. — Felix Henningsen, Jun 21 '18 at 17:03
Thanks! I just tested and your code works fine for me ( https://i.stack.imgur.com/8Vx5Q.png). Can you compile the little document from your question and share the .log file? — samcarter_is_at_topanswers.xyz, Jun 21 '18 at 17:15
OK, at the end of your log file it says Package pgf Warning: File "isotropy-raw-img0.png" not found when defining image "pgflastimage". Tried all extensions in ".pdf:.jpg:.jpeg:.png:" on input line 44183. ) — samcarter_is_at_topanswers.xyz, Jun 21 '18 at 17:20
Can you test if `\documentclass{book} \usepackage{graphicx}
\begin{document}

\includegraphics{isotropy-raw-img0.png}

\end{document}` works? — samcarter_is_at_topanswers.xyz, Jun 21 '18 at 17:22
I see that. What causes this if it compiles fine on your machine? In my case, the image is in a subfolder, that might be valuable information. — Felix Henningsen, Jun 21 '18 at 17:22
This wont compile, as it is in /subfolder/isotropy-raw-img0.png — Felix Henningsen, Jun 21 '18 at 17:24
I see, this explains the problem. Open isotropy-ray.pgf in a editor and replace \pgfimage[interpolate=true,width=0.220000in,height=1.210000in]{isotropy-raw-img0.png} by \pgfimage[interpolate=true,width=0.220000in,height=1.210000in]{path/to/file/isotropy-raw-img0.png}. — samcarter_is_at_topanswers.xyz, Jun 21 '18 at 17:25
@samcarter genius! (if you put in the right subfolder) it works! — Felix Henningsen, Jun 21 '18 at 17:31
@samcarter now, that being a kind of dirty solution, any way to automatize this? — Felix Henningsen, Jun 21 '18 at 17:32
To automate maybe this thread could help: https://tex.stackexchange.com/q/127667/36296 — samcarter_is_at_topanswers.xyz, Jun 21 '18 at 17:33

LaTeX matplotlib pgf shows no colorbar - instead shows colorbar png image filename

0 Answers0