I want to mouse over an area on the graph and display the exact value

[NI guy intern]

I have a chart that displays 8 secs of data on a scale of 0 - 10 volts in relation to time. I do not want to use the 'graph pallete' to zoom in or out on the graph. I want to mouse over the data point I select on the graph and have a numeric display tell me exactly what that point is. How do i do that?

[GerdW]

Hi NI guy,

that's what cursors are good for!

Enable the cursor palette and move them around (maybe snapping to a plot...)!

Of course you can also:

- create an event structure

- check the mouse move event for the graph

- get mouse position

- convert mouse position to graph coordinates

- display them in numerical indicators

First option is ready to use

Message Edited by GerdW on 08-26-2008 11:01 PM

[NI guy intern]

Thanks very much for the reply. I'm going to try those things out.

[Prorok]

Hi,

how to use the "first option" i waveform chart ?

[Ben]

No cursors on Chart so options are;

1) Use a graph instead. You can search this site to see how people have used a graph like a chart to accumulate values

2) Use method #2

take care,

Ben