Flint: Callibration for live image axes
For map scan it is sometimes needed to normalize the axes, for example specifying a mapping with an energy.
This could be implemented by description with something like:
add_image_plot(... image="mydata", x="energy, y="frameid")
The Flint implementation could use internally a scatter.
Requested by @berruyer
This still could be discussed to understand the wide of the use cases expected.
Edited by Valentin Valls