How can I get correctly plotted lines when using Matlab in a Webbrowser?

Problem: When displaying a plot using the webbrowser, the result looks weird. Most points of the line are missing, only two straight parts are shown as in the appended image.

Tests until now: I tried to plot some random or fixed numbers (1d and 2d arrays) on different backend machines (

• Matlab R2021x with Matlab Proxy on Windows 10,
• Matlab R2022b within Docker container,
• https://matlab.mathworks.com/

) and web browsers browsers (

• Firefox and Chromium on Manjaro Linux for all cases;
• Firefox and Edge on Windows 10 for first case [Windows as backend])

Results: The simplified code used for the screenshot is

format compact
x = 1 : 10
y = randn( 1, 10 )
plot( x, y );

Some kinds of basic plots do not get displayed correctly, but this seems to be slightly inconsistent: plot(x) seems to work, but plot(x,y) with random y values seems to result in the wrong behaviour. plot3() and scatter() seem to work, but polar() does not.

In some cases, the plots do not get displayed at all.

Question: How do I fix this plotting error?

[Star Strider]

I cannot reproduce that problem. Your code works correctly for me in MATLAB Online (Firefox) and there is no problem with the figure.

Answer 1

[Cris LaPierre]

I suggest contacting support.

I was not able to reproduce in MATLAB Online using Edge or Chrome.

[Frithjof Splettstößer]

In a virtual machine, the plot on matlab.mathworks.com looks as intended. On the host machine, it still looks as in the uploaded screenshot. → It could be dependent on my installed hardware or software.

Could it be something OpenGL/WebGL related?

Do you have other ideas for where to search for the problem?

[Cris LaPierre]

I don't, but support might.