I am trying to export a 3D diagram from Matplotlib to TikZ, using import tikzplotlib. This is the code executed in Jupyter NoteBook:
from mpl_toolkits import mplot3d
import numpy as np
import matplotlib.pyplot as plt
fig = plt.figure()
ax = plt.axes(projection='3d')
z = np.linspace(0, 1, 100)
x = z * np.sin(20 * z)
y = z * np.cos(20 * z)
ax.plot3D(x, y, z, 'gray')
ax.set_title('Intentando con 3D')
plt.show()
import tikzplotlib
tikzplotlib.save("papon.tex")
tikzplotlib.Flavors.latex.preamble()
The resulting papon.tex file shows the following when compiled:
% This file was created by tikzplotlib v0.9.8.
begin{tikzpicture}
end{tikzpicture}
Missing any configuration or code modification? Or, simply, is it not possible to correctly export a 3D chart -with these characteristics- to TikZ?
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Answer
The answer is yes to both questions.
The first problem is that you save the figure after show, which consumes the plot, and you save an empty new plot thereafter. The plot gets exported when you remove the following line:
plt.show()
However, the second problem is that 3d plots are indeed not supported. See the tikzplotlib documentation:
Of course, not all figures produced by matplotlib can be converted without error. Notably, 3D plots don’t work.
The output of your example above looks like the following, and the tikz output is a 2d plot. So there is no quick solution to turn that into the desired plot:
