How to view the values of points on a plot?
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Suchita
el 5 de Sept. de 2014
Comentada: Gilles Desvilles
el 18 de Feb. de 2024
I am plotting a circle based on list of x and y co-ordinates in a .txt as input.How can I view the points on the circle once it is plotted?
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Geoff Hayes
el 5 de Sept. de 2014
Suchita - you could can enable the data cursor mode on the figure. For example, suppose we plot the sine wave as follows
close all;
x=-2*pi:0.0001:2*pi;
y=sin(x);
h=figure;
plot(x,y)
You can then enable the data cursor mode as
datacursormode(h,'on');
Now when the cursor moves across the figure, it has the shape of the plus symbol (cross-hairs). Clicking near a point on the sine curve snaps the cross-hairs to that point and text box appears displaying the x and y coordinate.
To turn the data cursor mode off, just type
datacursormode(h,'off');
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Gilles Desvilles
el 18 de Feb. de 2024
Do you know how to go to the next point on the plot without clicking on it, just starting from the initial point and using a key ? The arrow keys don't make it unfortunately.
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