Multiplot Legend Item remains after line visible property put to "off"

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Jason
Jason 2024-6-18
编辑： Ayush Modi 2024-6-18
Hi, on a previous post I was kindly showed how to "disable a plot" on a set of plots. What I actually want to do is temporarily remove it and Steven Lord suggested using the "visible" parameter
So I use a checkbox to allow me to toggle on or off the last line plotted:
val = app.VisibleOFFlastplotCheckBox.Value;
ax=app.UIAxes;
t = ax.Children(1); % Get last plot
switch val
case 1
t.Visible='off';
case 0
t.Visible='on';
end
Whilst this works, it doesn't seem to remove the legend item, but instead Greys it out.
So to show this, the purple curve below is the one I want to remove / hide (note if remove it, I want the possibility of adding it back which is why Steven suggested the "visible" approach)
And here's what happens once I set the visible property of the line to "off" - notice the legen item is still present
So how can I hide / temporarily remove the last legend item?
Thanks
Jason

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采纳的回答

Jaynik
Jaynik 2024-6-18
Hi Jason,
Instead of just using the Visible property, you can set the IconDisplayStyle property of the Annotation object to 'off'. Here is how you can adjust the code accordingly:
switch val
case 0
t.Visible = 'off';
t.Annotation.LegendInformation.IconDisplayStyle = 'off';
case 1
t.Visible = 'on';
t.Annotation.LegendInformation.IconDisplayStyle = 'on';
end

更多回答（1 个）

Ayush Modi
Ayush Modi 2024-6-18
编辑：Ayush Modi 2024-6-18
Ran in:
Hi Jason,
From the previous post, I understand you are using the 'DisplayName' property in the plot function and passing the plot handles in the legend function.
f1 = figure;
a = plot(2:10,3:11, 'DisplayName','legend1');
% Current legend statement - passing plot handles
legend(a);
a.HandleVisibility = "off";
a.Visible = 'off';
As depicted, 'HandleVisibility' property doesn't hide the legend line in this implementation. As a workaround, you can enable legends visibility using 'show' parameter. Here is the example code for your reference:
f2 = figure;
b = plot(2:10,3:11, 'DisplayName','legend2');
% Setting the legend property to show.
legend show;
b.HandleVisibility = "off";
b.Visible = 'off';
Hope this helps!

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