x-y graph cursor moving

[PaulG.]

I have an application that uses cursors to "zoom" onto user-selected portions of a waveform that can be acquired at different sample rates. Everything works fine except I cannot keep my cursors on the same portion of the graph when I change the sample rate. Everything else works fine. I've tried everything I can think of and what I've seen posted here: saving the cursor list before I change the sample rate then re-inserting it after the scope refreshes, saving the x locations in shift registers, functional globals, etc. This is extremely confusing. I save the cursor positions in an ini file and can program them into the cursor list with no problem when I start the application, but can't do it internally in the program! Why do the cursor x values change and how can I solve it?

PaulG.

7.1.1/2000

[altenbach]

Can you attach a simple example? What is your version of LabVIEW?

[PaulG.]

I think I got it .... but don't ask me how. I was setting the XScale.Offset/Mulitiplier/Maximum properties after I reset the cursors. If I reset the properties before I reset the cursors it seems to  be working. I'm stumped for an explanation. The cursors don't care what the scaling factors are, do they? I thought x position 55.5 usec should be 55. 5 usec regardless of multiplier and array size.

PaulG.

7.1.1