Add a scale bar to my plot

Hello, I was just wondering if there would be any way to replace the axis line for some sort of a scale bar. I am quite convinced there is no built command for this in matlab, so I was wondering how you guys would tweak the plot in order to get this. Just for the sake of illustration, this is what I have:
This is (sort of) what I wanted to obtain:
Thank you in advance for your collaboration!

 采纳的回答

This was an interesting project!
You will probably have to experiment to get exactly the effect you want, but this will get you going:
% Create Data —
t = linspace(10,34); % ‘t’ (ms)
y = [20+5*sin(2*pi*3*t/24)+2*randn(1,100); 60+5*cos(2*pi*3*t/24)+2*randn(1,100)];
figure(1)
plot(t, y)
hold on
plot([12; 12], [-40; -20], '-k', [12; 22], [-40; -40], '-k', 'LineWidth', 2)
hold off
axis([[10 34] -60 140])
text(11.8,-30, '10 mA', 'HorizontalAlignment','right')
text(17,-45, '10 ms', 'HorizontalAlignment','center')
% set(gca, 'XTick', [10:2:34], 'XTickLabel', {[] 12:2:32 []}) % Used temporarily to get the ‘text’ positions correct
set(gca, 'Visible', 'off')
Produces:

2 个评论

Dear Star Strider,
Brilliant! By the looks of it this is exactly what I wanted. I haven't tested yet, but I will as soon as possible. Thank you for the quick reply!

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更多回答(2 个)

chen xinfeng
chen xinfeng 2016-9-6

1 个投票

Hi, maybe you can try this Code .
The SCALEBAR is dragable & resizeable , both GUI-operate & Commandline-operate are supported.
<<www-mathworks-com-matlabcentral-answers-uploaded_files-58857-687474703a2f2f7374617469632e7a7962756c756f2e636f6d2f6368656e78696e66656e672f6a7362347676756f3262706e746d347767326136693731652f696d6167655f316172756a397573623174337074723231386562726b3031397333392e706e67.png>>

1 个评论

HI Chen,
Your scalebar is amazing. There is something I want to change. when I pan the plot, the bar moves with the plot. How can I keep it steady?

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Lee Key
Lee Key 2020-10-2
编辑:Lee Key 2020-10-2

0 个投票

Hi,
How to add a scale bar to a map (plot) with lat and long cordinates?

2 个评论

https://it.mathworks.com/help/map/graphic-scales.html
Sim — Thank you. I do not have the Mapping Toolbox, so could have responded here.

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