yyaxis limit for lines in one graph

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Filip Lekes
Filip Lekes 2025-3-26
回答： Adam Danz 2025-3-26
Hello,
I would like to ask you about the limitations of yyaxis plots in a single plot. I've noticed that if the number of lines is greater than four, the last line is plotted extremely bold, regardless of the settings. I am using MATLAB R2023b.
I've included an example below for testing.
x = -pi:0.01:pi;
figure(1)
lineColor = turbo(5);
for iSin = 1:5
yyaxis left
plot(x, sin(iSin * x), 'LineStyle', '--', 'LineWidth', 1.5, 'Color', lineColor(iSin, :))
hold on
end
The picture with 5 elements:
The picture with 4 elements:
Is this a bug or some limitations of yyaxis command?
Thanks in advance.
Best regards,
Filip Lekes.

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采纳的回答

Star Strider
Star Strider 2025-3-26
I doubt that it is a limitation, simply yyaxis doing its best to make the lines distinct. You can specify them yourself with the LineSpec options (although it would likely be best to not specify the colours, and let yyaxis define that).
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Filip Lekes
Filip Lekes 2025-3-26
I've just tried this approach with LineSpec and works as I would expected.
plot(x, sin(iSin * x), '--', 'LineWidth', 1.5, 'Color', lineColor(iSin, :))
It's funny that without 'LineStyle' it's working.
Thanks a lot for support.
Star Strider
Star Strider 2025-3-26
My pleasure!
If my Answer helped you solve your problem, please Accept it!
.

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Adam Danz
Adam Danz 2025-3-26
Ran in:
Specify Line Style and Color in axes properties instead of in plot(__)
Starting in R2023a, you can set the line style and line colors in axes properties and you can control how the axes cycles through those line and color properties as new objects are added to the axes.
The following block uses these axes properties to control the color and style of the lines.
  • LineStyleOrder
  • ColorOrder
  • LineStyleCyclingMethod
x = -pi:0.01:pi;
figure(1)
yyaxis left
ax = gca();
ax.ColorOrder = turbo(5);
ax.LineStyleOrder = '--';
ax.LineStyleCyclingMethod = 'withcolor'; % cycle through linestyle and color together
hold on
for iSin = 1:5
plot(x, sin(iSin * x), 'LineWidth', 1.5)
end

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