Fill the patch between 2 X limits

Hello, I got Picture 1 and my goal was to create Picture 2 ideally, if not possible Picture 3. My objective is to create a legend for the red part of the plot, ideally, an arrow between the 2 limits would be awesome. Thanks

I am open to other suggestion to make a legend of that specific part. Thank you

figure
%Plot something
plot(1:10)
% Add lines
h1 = line([2 2],[1 10]);
h2 = line([5 5],[1 10]);
% Set properties of lines
set([h1 h2],'Color','k','LineWidth',2)
% Add a patch
patch([2 5 5 2],[1 1 10 10],'red')

Answer 1

[Walter Roberson]

You could consider using annotation('doublearrow'). But watch out: the coordinates by default are normalized to the figure, so you can have to go through some steps to get them relative to the axes (and then you have to re-calculate if the axes gets resized or panned.)

[Tiago Dias]

yeah, I know the points where I want to draw the "arrow", but I can't get the points like I want

[Walter Roberson]

https://www.mathworks.com/matlabcentral/fileexchange/10656-data-space-to-figure-units-conversion

Answer 2

[Sagar Shah]

@y Tiago Dias ,

Did you get proper answer or code for that? Currently, I need the same arrow indication as you needed.

Can you please share information?

[Tiago Dias]

i tried the "annotation" tool, but its normalized so i couldn't work properly so i dropped it

[Walter Roberson]

The File Exchange contribution I posted a link to converts coordinates to make it possible to use data coordinates instead of figure coordinates.