Placing a cursor in multiplot graph

[08025040678]

We are currently using LABVIEW 7.1 to display multiple parameters such as speed, temperature, flow rate, pressure etc.in a single graph. All these parameters are being acquired using NI hardware.These parameters are displayed graphically in a single graph. We need to have a vertical cursor(not a cross-hair) such that the digital values of all the above parameters at the cursor location are displayed at the bottom of the graph. We also need that the digital values of all the above parameters should change dynamically when the cursor location is changed. Is it possible to have the above feature using LABVIEW 7.1?

[Brett_B.]

I do not know if you have a question about cursers or your issue in general so I will start with the graph and cursors. Right click on your graph and goto "properties". From here you will see a "cursors" tab. From here you can add cursors, name them, and select their line style to be only vertical.

To have the cursor display the data from multiple plots you will need to use a property node to pickup the X location of the cursor. With this X location you will be able to output the Y data for you different params...pressure, temp, flow etc. You can put these indicators somewhere close to your graph so as the user moves the cursor...the values of your params will change to indicate the current location.

let me know if you have further questions.

Brett Burger
Applications Engineer
National Instruments