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

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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 (
) 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?
  1 Comment
Star Strider
Star Strider on 30 Jan 2023
I cannot reproduce that problem. Your code works correctly for me in MATLAB Online (Firefox) and there is no problem with the figure.

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Answers (1)

Cris LaPierre
Cris LaPierre on 30 Jan 2023
I suggest contacting support.
I was not able to reproduce in MATLAB Online using Edge or Chrome.
  2 Comments
Frithjof Splettstößer
Frithjof Splettstößer on 1 Feb 2023
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?

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