to get values from graph in labview

[Moony]

Hi everybody.

Please help to solve my problem.

I need to get values from graph in labview. Is it possible?

[_Ian_]

The values at a single point selected by the user?  If so, look at cursors.

The values of all data points? If so either use the data that is wired into the graph, or (less desirable) read from a local variable.

Can you be a bit more specific about what you want to do?

[Moony]

Thanks for reply. Now I'm going to introduce my problem.

I have, for example, XY graph. I need to get the value of Y corresponding to given X value.

Thank you in advance. 

[_Ian_ · Accepted solution]

It still isn't quite clear how you want to provide the 'x' data. For example, the attached show two possible methods.

Ian

[Moony]

Look.

I plotted a graph with certain known X-axis values and its corresponding known Y-axis values. I need to find out the corresponding value on Y-axis for a specific value on X-axis. In other words, I want to input X-axis value and then to know corresponding Y-axis value.

Thanks for example. I'll study it.

[Moony]

Dear lan, 

Thaaaaaaaaaaaanks soooooooooo much!!!    

Your example is all I need...

Thanks once more. 

[casper747]

Hi

I have the same problem,Can you send a picture of the solution?my labview is 8.2 , It can not open the solution.

thanks

[_Ian_]

Ere ya go.

Note that you could also perform these operations within an event structure in order avoid the continuous while loop.

Ian

[casper747]

Thank you veryyyyyyyyy much! 

[Helpappreciated]

how would you do the same but knowing the y value and looking the x value?