XYGraph Secondary Axis

[murchak]

Very simply problem: I have a few curves on a single XYGraph. How can I make the Y-axis for one of the curves a secondary axis?

See the attached VI.

I did give it a try, but I get Invalid Property Value error. My unerstanding is Plot.YScaleIdx = 0 for primary Y-axis and 1 for secondary Y-axis. Is this not the case?

[RavensFan · Accepted solution]

You need to duplicate the scale before you can write to it.

I did it manually, then your code worked without error.  I don't know if there is a programmatic way to duplicate the scale.

EDIT:  According to this http://forums.ni.com/t5/LabVIEW/how-to-show-duplicate-scale-programatically-on-chart-indicator/m-p/1... you can not programmatically create the scale.