New configs for GF 3.1

[JayPro]

I seem to have resolved an issue wherein the atan2 func in this flowfield can be accurately simulated in pre 3.1 builds, to wit:

"D3=atan(D1/D0)"

I cite this based on what the field is supposed to look like as shown in Rovie's screen caps.

I mentioned earlier before that the atan2 funcs work for me on the other fields, but not on this.

Maybe more appropriately...how do you get a *circular* (ostensibly polar) field by plotting strict cartesian????

EDIT: Matter of fact, I'm now finding that with *all three of them*, if you set the D3 param to the same argument (if that's the right terminology), they're truer to form than what I had been seeing before.

Maybe I've discovered a workaround to atan2?