Finding every Intersections of 2 channels

[kmyan9]

Hello everyone!

I am trying to build a script that finds the intersecting points.

If you look at the "Example.png" image, you can see that I have 2 random curves.

I want to find the intersecting points and plot them.

Thus, in the report I save "automatically", I want to have both my original curves, and markers at the intersections. 

I thought this would be easy if I can use something from the "Event Search", but I am stuck with finding the right conditions. 

[I was expecting to get the points where designators A & B were equal to each other(A=B) would give me the x-coordinates of when the intersections occur]

I've looked though other threads, but I couldn't find what I want...

Any advice would help me greatly!

Thank you in advance, and I will not forget kudos!

[Walter_Rick]

Hello kmyan9

If you compare A and B whether they are equal, then both values have to be exactly the same. For measured values this is not very often the case.

So, it is better to use >=. In the result of the channel event function, are the Start-Index the values you are looking for.

Greetings

Walter

[kmyan9 · Accepted solution]

 Hey Walter!

Thank you for your suggestion!

I did realize that A & B can almost NEVER be equal just before you posted you response.

Then I just managed to get it, and will post my solution for future reference.

I subtracted the two graphs, found the range at where the difference was a very small value (ex. 0.5)

Then multiplied it with the smaller graph to get another "final channel"

Then used the calculator to do

"Ch("Final") = IIF(Ch("EventStatus") = 0, NoValue, Ch("Multiplied")) 

and got the result that I attached as "got it.png"

Thanks for the help Walter hope you have a good day!