How to realize the function similar to the envelope of the press?

[matrixbug]

I want to realize the functions like envelope line and calculation inflection point of the press as shown in the figure below, that is, the curve needs to pass through one or more rectangular areas to be qualified for press mounting. How can I achieve this? Is there any algorithm that can be used for reference? Thank you.

[aeastet]

No there is no magic algorithm that come with LabVIEW to do this. I suspect that it will be unique to your process so you will have to make your own code to do this. It should not be to hard to do something like this. WHat have you tried so far? Do you have code to show?