Douglas,

I use the slice function in IRIS to get the data and then use gnuplot to
plot it.

IRIS is very old now (2010 I think) but it has lots of useful fuctions
and it can be scripted.

http://www.astrosurf.com/buil/iris-software.html

Nick.

On 18/11/2023 09:40, Douglas Heggie wrote:
> Very interesting. What software was used for the profiles?
>
> Douglas