Select points in a plot

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Hi, I'm using the app designer and i want to select some points from a plot.
in the UIAxesButtonDown function I'm using this notation to "capture" the mouse position:
C = get (app.UIAxes,'CurrentPoint');
app.UITable.Data = C(1,1:2);
the problem is that I don't know how to store the X and Y values of the point I just clicked, because if I click again on the plot it will overwrite the previous point.
Thanks

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Mario Malic
Mario Malic 2023-1-10
编辑:Mario Malic 2023-1-10
Hello,
It would be the best if you put data tips on the points you want to select then you can get them with these lines
dataTips = findall(fig, 'type', 'datatip'); % where the fig is your figure handle
pointCoords = cell2mat([get(dataTips, 'X'), get(dataTips, 'Y'), get(dataTips, 'Z')]);

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