Horizontal reference line on waveform chart

[PatrickMiller]

I have a waveform chart which i'd like to add a reference line for setpoint and deadband. I can't seem to find any property nodes for markers which can easily set reference markers due to requiring a cluster for the waveform data.

How would I go about adding a reference line?

[GerdW · Accepted solution]

Hi Patrick,

you just found one of the limitations of charts when compared with graphs…

Just add some more plots to use them as reference lines!

[PatrickMiller]

Hello GerdW,

Thank you for the quick response. 

So essentially if i was charting a sine wave(amplitude from 0 to 10) and I wanted a reference point of 7 I would just chart the sine wave but also build a constant plot of 7's ontop of the sine wave? Merge them with a build array into waveform chart?

[GerdW]

Hi Patrick,

Merge them with a build array into waveform chart?

Just look at the context help for your chart: it will show you the datatypes expected by your chart…

(You don't "merge" with BuildArray, you just build arrays by prepending/appending.)