Waveform graph:move cursor automatically to know coordinate

[ahmadtarmimikassim]

Good Day

Can i know how to move cursor automatically in the waveform graph

example: i have known Y =2 what is the value of  x is...

which properties in property node should i use?

attached also my vi (Coordinate of XY data using cursor)

Best Regards

Ahmad Tarmimi

[altenbach]

How does your data look like? In the most general case, ther can be many values where Y=2, so which one do you want?

What if no value is 2? (currently you are simulating a sine, which never exceeds 1!)

Why do you allow cursor drag?

In any case to move a cursor you would set the position property node to "write" and write the desired coordinates to it.

MAny times it is easier to lock the cursor to a plot. Now all you needs it set the "cursor index" property to move to the desired position.

[ahmadtarmimikassim]

Good Day altenbach 

Thank for your fast reply..

my data is in exponential waveform(sinewave is just example)

For my condition if i know the coordinate value of Y(amplitude),   but  unknown is the coordinate value  of X(time)

For my personal opinion the easy method automatically drag cursor with known coordinate value of y , thus get the coordinate value X

Can you please gave me an example in VI...?

Thanks for your strong support 

Best regard

Ahmad Tarmmi

[altenbach]

Is the exponential function increasing or decreasing with x? can you attach some typical data?

[ahmadtarmimikassim]

Hi

Atttach as per request

exponential waveform( double exponential waveform)

Best Regards

Tarmimi

[ahmadtarmimikassim]

Good Day

I was trying to program the cursor automatically but it does'nt seem working for me..

Can you please advise me on this matter... 

Attached also my study pupose vi

Best Regards

Ahamd Tarmimi

Spoiler

[altenbach]

You need to write to the position property instead of reading from it. Here's a quick draft.

[ahmadtarmimikassim]

Hi altenbach

Thank for the good vi example..

can i ask  question..? how can i get  value of X at the same Y value  with diferent intersection C(refer diagram)

Do i need to create an extra cursor and program  cursor automatically to that intersection?

Best Regards

Tarmimi

[altenbach]

Yes, just get a third cursor. Threshold array only works for nondescending segments, so you would start at the max, negate Y, and search for -0.1 or similar.

[ahmadtarmimikassim]

Good Day altenbach

Thanks for the information..

But i don't quite understand the statement "you would start at the max, negate Y, and search for -0.1"

Can you please give me some hint in VI example

Best Regards

Ahmad Tarmimi