Modify Graph with Trace Info during procedure

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Hello there Igor Community,
   

I am trying to write a procedure that will display a graph and then wait for another input before continuing the program. I have data that is semi periodic, and i need to fit each semi periodic section, and the start and end points are important to select correctly for the fit function. I need to be able to zoom in/find start and end points during a procedure. I was wondering if I could use the trace info tools without exiting the procedure.

Hopefully the question isn't worded too poorly.

Follow Up question: Can I somehow automatically assign the values of the "Show Info"  graph option value to a variable? I e when you use the small circle and square to select points on a graph.

I think the "programming with cursors" may solve my problem. I will try that first

May 2, 2019 at 11:23 am - Permalink

To get the value of a cursor, use pcsr( c name ) to get the trace point number, hcsr( c name ) to get the X value of the trace point, and xcsr( c name ) to get the scaled X value of the wave point the cursor is on. Note that xcsr() is NOT the same as hcsr()- xcsr() refers to the Y wave's X scaling, while hcsr() refers to the horizontal axis value. Confusing, eh?

Where I have written "c name" you need either "a" (round cursor) or "b" (square cursor), but without quotes: pcsr(a) for instance.

May 2, 2019 at 12:14 pm - Permalink