XY graph, can it return the plot under the mouse?

Hello All
How to get a plot number, which lies in the closness of the mouse cursor?
Lets assume we have three lines in the XY Graph numbered as Plot1, plot2 and plot3. When I press somewhere in their close vicinity, how to get information which line lies the closest.
thanks
Pawel

Pawel,
Take a look at the attached VI that I created as a follow up to Joe's great posting.
In the VI I take advantage of the example and then I calculate which plot is closest to the mouse click. One caveat is that the SubVI "Scale Values.vi" uses some numeric constants that will change when you convert this VI over to use your graph. Therefore you may need to play with the values.
Evan
National Instruments
Attachments:
Plot.llb ‏86 KB

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XY graph, can it return the plot under the mouse?

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