How to get a plot handle by ginput

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S H
S H le 23 Mar 2019
Réponse apportée : Walter Roberson le 23 Mar 2019
Would you please tell me what should be added to the following code in order to get one of the plot handles ah, bh or ch if the mouse is clicked on the corresponding plot?
figure
ah=plot(10:-1:-10);
hold on
bh=plot(-5:0.5:5);
ch=plot(-3:0.25:4);
[x,y]=ginput(1);
.....

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Walter Roberson
Walter Roberson le 23 Mar 2019
What should be added is ButtonDownFcn callbacks on ah, bh, ch .
Otherwise you have to do a bunch of work figuring out which line segment is closest to where you clicked, and deciding whether you are within tolerance of it.

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