Jonathan, i think you can do what you want with Data Process-Z Basic
Operations->Dimensions and units.Then you alter "Z range" in "value range", by
the appropriate multiplication value, eg. 18/14.
Please remember, that its always better to have the instrument calibrated
BEFORE making measurements....but at a pinch you can do it this way.I
recommend you apply the correction to the image of your calibration step FIRST,
to be sure you get the expected result.Pete.
> I collected some step heights yesterday and then, just to double check, I
> measured a height reference standard. The standard is 18nm but was measured
> at about 14nm. Knowing that can I apply a correction to all the step
> heights I measured, and will Gwyddion make that correction easy to apply?
>
> Is the correction just an offset I need to add to all the data points, a
> multiplicative factor, or is it more complicated than that?
>
> --
> Jonathan Abbott
>
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