extract y value from graph at any given time

[alanled]

I have a graph with a pre-plotted curve generated from a standard set of results. I need to extract the y value of the curve at any given point. My y value is pressure and my x value is stroke(hydraulic cylinder movement in mm). So for example at 10mm(x value) I need to extract the pressure(y value). Is there a property node I could use for this? any help would be much appreciated.

[GerdW]

Hi Alan,

instead of reading values from the graph you may use the interpolation functions from the array palette to do interpolation on the plotted values directly...

[alanled]

Many thanks for this, I will give it a go I have not used this function before so its going to be fun!!

[thinnker]

Hi,

Can you please example for this question.

Regards,

Hari