How to get a plot handle by ginput

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S H
S H 2019년 3월 23일
답변: Walter Roberson 2019년 3월 23일
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 2019년 3월 23일
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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