x-axis chart

[Primesh]

I am having trouble clearing a chart that read in a waveform from a analog daqmxbase read vi. I wired an empty array to the history node of the chart. It clears the the waveform on the chart, but it does not reset x-axis values to zero. It keeps starting from the last run. As of right now, the x-axis starts at 3196366917 if i start another run. I tried wiring the history node as a 2-D empty array, but the history node will only accept a 1-D empty array. Could someone please help me out? Thanks

[tst]

The history property will only accept a 1D array because that's the way a chart is built - it only keeps Y values. To reset the scale, you need to use the X-Scale>>Offset & Multiplier>>Offset property. Wire 0 into it.

[Primesh]

I tried using the offset property value node, but it still starts off from the last run. Is there any other way to reset the x-axis to 0? I've attached my code for reference. Thanks

[altenbach]

Your formula express vi generates dynamic data that contains the current timestamp, which is then used by the chart for the time axis. You need to convert it back to a single scalar to loose that extra information.

(see attached modification, LabVIEW 7.0)

[Primesh]

Thanks for the help. The modification of the code worked perfectly.