1

I use python to draw a lot of contourplots which I export to a tikz figure. However, when exporting the tikz figure the labels are not exported. And it does not matter whether I insert labels on the lines or add them to a colorbar they are not exported. I tried to find a solution but unfortunately python exports the contourplots with the \path method instead of the contourmethod meaning that most methods to add a colorbar or labels inside the plot do not work.

There are too many plots and labels to add them all by hand, so I was wondering if anyone knows a solution to add plots. I added an example python export.

This file was created by matplotlib2tikz v0.5.15.

\begin{tikzpicture}

\definecolor{color1}{rgb}{0.161290322580645,1,0.806451612903226}
\definecolor{color0}{rgb}{0,0.3,1}
\definecolor{color3}{rgb}{1,0.407407407407408,0}
\definecolor{color2}{rgb}{0.806451612903226,1,0.161290322580645}

\begin{axis}[
title={Simplest default with labels},
xmin=-3, xmax=2.80000000000001,
ymin=-2, ymax=1.8,
axis on top
]
\path [draw=blue!50.0!black] (axis cs:0.718531200553679,-0.0767608872850903)
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--(axis cs:2.66453525910038e-15,-0.962571874201965)
--(axis cs:-0.199999999999998,-0.941213000786582)
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--(axis cs:2.66453525910038e-15,0.239321434365805)
--(axis cs:0.0267921823889057,0.235036123267517);

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--(axis cs:-0.199999999999998,0.47512354764157)
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\path [draw=color3] (axis cs:0.30983895688028,1.22166775912527)
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\path [draw=red!50.0!black] (axis cs:1.46411784156425,1.25794018233102)
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--(axis cs:2.07367124095886,1.05107686936407);

\end{axis}

\end{tikzpicture}

This should export as the following image:enter image description here

But does instead export as the following: enter image description here

2
  • matplotlib2tikz made no attempt to export the labels, otherwise there would be a node somewhere. Dec 22 '16 at 15:13
  • Is there a possibility to make matplotlib2tikz export those labels? Or another way to add them except for adding them individually by hand? (hence adding \node[label,rotate=-20,color3] at (axis cs:0.5,0 ) {-1000}; for every label and figuring out the position by hand). Or is there an option to export the position and rotation of the labels in python such that I can easiliy add the labels to the pgfplot? Dec 22 '16 at 15:37
0

To add labels by hand, just copy the last and first point of a continuous contour, or the last and first point in the gap between two halves of a discontinuous contour, into a new path with a node in the middle.

\documentclass{standalone}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}[font=\scriptsize]

\definecolor{color1}{rgb}{0.161290322580645,1,0.806451612903226}
\definecolor{color0}{rgb}{0,0.3,1}
\definecolor{color3}{rgb}{1,0.407407407407408,0}
\definecolor{color2}{rgb}{0.806451612903226,1,0.161290322580645}

\begin{axis}[
title={Simplest default with labels},
xmin=-3, xmax=2.80000000000001,
ymin=-2, ymax=2,% changed ymax from 1.8 to 2
axis on top
]
\path [draw=blue!50.0!black] (axis cs:0.718531200553679,-0.0767608872850903)
--(axis cs:0.800000000000003,-0.179470474200398)
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--(axis cs:0.0267921823889057,0.235036123267517);

\path (axis cs:0.0267921823889057,0.235036123267517)
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   node[midway,sloped,above,inner sep=0pt] {500};

\path [draw=color2] (axis cs:1.46226876810439,1.77513221330229)
--(axis cs:1.4,1.77428316926718)
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--(axis cs:2.71373184502007,0.399999999999999)
--(axis cs:2.80000000000001,0.421094767411591);

\path [draw=color3] (axis cs:2.80000000000001,1.03640584482182)
--(axis cs:2.71439495102587,1.2)
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--(axis cs:1,1.48627528858315)
--(axis cs:0.926958185545041,1.4722384724419);

\path (axis cs:0.926958185545041,1.4722384724419)
   --(axis cs:0.30983895688028,1.22166775912527)
   node[midway,sloped,above,inner sep=0pt] {1000};

\path [draw=color3] (axis cs:0.30983895688028,1.22166775912527)
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--(axis cs:2.70019673404058,0.799999999999999)
--(axis cs:2.80000000000001,0.966902368918258);

\path [draw=red!50.0!black] (axis cs:1.46411784156425,1.25794018233102)
--(axis cs:1.4,1.25922455781096)
--(axis cs:1.2,1.2393333143328)
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--(axis cs:2.12086162875271,0.999999999999999)
--(axis cs:2.07367124095886,1.05107686936407);

\path (axis cs:2.07367124095886,1.05107686936407)
   --(axis cs:1.46411784156425,1.25794018233102)
   node[midway,sloped,above,inner sep=0pt] {1500};

\end{axis}

\end{tikzpicture}
\end{document}

demo

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