Considering PixScale vs DPI

[andydotxyz]

Currently we have PixScale which defaults to 1 meaning that we draw 72DPI into the images.
A value of 2 would be effectively 144 DPI.

Is this intuitive? If someone wanted to do print, and for example 300DPI we would need PixScale as 300/72.
Should instead the field be DPI and default it to 72?

[whereswaldon]

I honestly don't know which is most intuitive. Hopefully we can get someone with more experience in that area to chime in here. :D

[andydotxyz]

I've just realised we could have both. That way everyone should be happy. Defaulting to 72/1.0.