How can I change the length of a line using the xline() function?

Recently, I was trying to make a graph wihich required a vertical line to be of a specific length (so it stops at a line plot, and not cut through). Coudn't find any functions. How can I do that?

xline([1336.5 648],"r--")

(The part that I want to remove)

[Umar]

Hi Md,

To control the width of the line so that it stops at the line plot instead of cutting through it, you can adjust the `LineWidth` property of the line. You can add this property as an additional argument in the `xline` function like this:

xline([1336.5 648],"r--",'LineWidth',2)

So,in this example, I have set the `LineWidth` to 2, but you can adjust it to your desired width. By incorporating the `LineWidth` property into your `xline` function, you can create vertical lines of specific widths in MATLAB that do not cut through your line plot.

I hope this explanation helps you achieve your desired graph visualization in MATLAB. If you have any further questions or need more assistance, feel free to ask.

[Md Affan]

sorry, there was a mistake in my question. it was the length, not width :/

[Umar]

It’s okay, Md. Sounds like your problem is resolved. Good luck with your project. If you still have any further questions, we are still here to help you out.

Answer 1

[Sam Chak]

Hi @Md Affan

Since you know the coordinates, you can directly use the plot() function.

% plot([x1, x2], [y1, y2]) creates a line between (x1, y1) and (x2, y2)
plot([1336.5 1336.5], [350 648], 'r--'), ylim([350 700]), grid on

[Md Affan]

Thank you for the answer. Also, I can't seem to change the color of the line using RGB triplets. Is there a way to do that?

[VINAYAK LUHA]

Hi Affan, check this out - 2-D line plot - MATLAB plot (mathworks.com)

[Md Affan]

Thanks

[Sam Chak]

Can specify the RGB Triplet as shown:

% [0.4940 0.1840 0.5560] is the RGB Triplet for violet (pastel purple)
plot([1336.5 1336.5], [350 648], '--', 'color', [0.4940 0.1840 0.5560])
ylim([350 700]), grid on

[Sam Chak]

@Md Affan, Maybe you forgot to divide by 255.

myColor = [126, 47, 142];   % color for violet
plot([1336.5 1336.5], [350 648], '--', 'color', myColor/255)
ylim([350 700]), grid on

[Umar]

Thanks for your contribution towards this problem, @Sam.

Answer 2

[Shreshth]

Dear Affan,

I can see that you are trying to introduce vertical lines in your graph with specific X and Y values.

There is not a direct line functionality that provides control over the vertical plot for your use case but one way of doing it is by using discrete data plots like "Stem Plots". You can find the functions associated with it in the following MathWorks documentation link, http://www.mathworks.com/help/matlab/stem-and-stair-plots.html.

Hope it helps.

[Umar]

Also, thanks for your help as well, Shreshth.