azimuthal_phase_conversion

[avadean]

azimuthal_phase_conversion has a recursion error bug with ImageExtractor2D if any of these evaluate to True:

• string_in_variable(variable, ['ETHETA'])
• string_in_variable(variable, ['J-THETA'])
• string_in_variable(variable, ['J-TH(MAG)'])

Seems to mostly just get caught by the return profile for now - so the code temporarily does only that.

[sjd549]

I will need to look at that more closely, it should just be checking if those strings exist within a variable name string and returning a bool. It'll use that to determine if a field and/or current should be positive or negative.

It's to do with the fact that HPEM (the code that makes the data) and HELENA have their axial orientation flipped. HPEM defines height = 0 at the top left of the image, whereas HELENA defines height = 0 at the bottom left, so some things need flipped...

In the future I'd quite like HELENA to just define height = 0 at the top left to agree with HPEM, but since it's not an explicit definition, rather lots of implicit swappings, it's a bit of a messy job.