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intersection on XY graph

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Hi, 

how to find intersection on graph entering   two points???

 

 

2.jpg

1.jpg

  

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Solution
Accepted by NikolaB

Two points make a line and the intersection is where the difference between line and data is zero. You probably need to interpolate. Seems simple geometry...

 

If you have a model for the data, you can do a nonlinear fit, and operate on the analytical curve, of course..

 

 

(Why are you doing "path to string" followed by "string to path"? Seems circular. Your VI uses 100% CPU when it is not doing anything)

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Of course in general there could be more than one intersection.

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