http://imagej.273.s1.nabble.com/how-to-set-calibration-in-API-tp5018687p5018688.html
read and write the variables without getVariable or setVariable methods.
> I wrote a python script to import my AFM image files, and it works
> great. These are small text images, with some metadata prepended, so I
> used this example as a starting point:
>
>
http://imagej.net/Jython_Scripting_Examples#Creating_an_image_from_a_text_file>
>
> However, one of the things that I want to do is to set the spatial
> calibration of the imported image.
> Right now I am doing it this way:
> IJ.run(imp, "Properties...", "channels=1 slices=1 frames=1 unit=micron
> pixel_width="+str(xCal)+" pixel_height="+str(yCal)+" voxel_depth=1.0000")
>
> where xCal and yCal are previously found from the metadata.
>
> There must be a way to do it without this call to IJ.run
>
> I thought to use the Calibration class:
>
https://imagej.nih.gov/ij/developer/api/ij/measure/Calibration.html>
> and this let me set the units, but I did not see a method here to change
> the value of the calibration.
>
> ImagePlus has setProperty(java.lang.String key, java.lang.Object value)
>
> but for this I need to know the name of the key (which I suppose I can
> get from the popup window of the Properties... command).
>
> So my questions are:
>
> 1. What is the correct way to do this?
>
> 2. If setProperty() is the way to go, where in the API can I find a list
> of the predefined properties?
>
> Thank is advance.
>
> --aryeh
>