matlab2tikz generates empty tikz-File when creating polarplot

Hallo all,

since several month I'm working with matlab2tikz and made good experiences. Right now, im trying to do a polarplot and convert it into a tikz-File to include it in Latex. The problem is, that matlab2tikz generates an empty tikz-File when creating a polarplot (see minimum example code). Does anyone have an idea how to solve the problem?

Kind regards

• Minimum example code, that does not work:

clear all

close all

theta = 0:0.01:2*pi;

rho = sin(2*theta).*cos(2*theta);

polarplot(theta,rho)

matlab2tikz('C:\Users\Name\Desktop\Polarplot.tikz', 'height', '5cm', 'width', '5cm');

• The file Polarplot.tikz without content looks like that:

% This file was created by matlab2tikz.

%

%The latest updates can be retrieved from

% http://www.mathworks.com/matlabcentral/fileexchange/22022-matlab2tikz-matlab2tikz

%where you can also make suggestions and rate matlab2tikz.

%

\begin{tikzpicture}

\end{tikzpicture}%

• The output from the matlab-console loosk like that:

*** (To disable info messages, pass ['showInfo', false] to matlab2tikz.)

*** (For all other options, type 'help matlab2tikz'.)

***

***

*** This is matlab2tikz v1.1.0.

***

*** The latest developments can be retrieved from our development branch.

*** You can find more documentation on our GitHub page and wiki.

*** If you encounter bugs or want a new feature, go to our issue tracker.

*** Please visit FileExchange to rate matlab2tikz or download the stable release.

***

*** You will need pgfplots version 1.3 or newer to compile the TikZ output.

Answer 1

[Rohit]

The issue here is that when using the "polarplot" function in MATLAB, it generates a specific type of "PolarAxes" object that is not compatible with "matlab2tikz", resulting in the object not being translated properly.

However, there is a workaround possible: instead of using "polarplot", one can use the older "polar" syntax. "polar" creates a regular "Axes" object, which is then customized to resemble a polar plot.

Refer to below documentation links for these functions-

https://www.mathworks.com/help/matlab/ref/polarplot.html

https://www.mathworks.com/help/matlab/ref/polar.html