How can the overall calculation of the difference between the two sets of plane closed curves (regions)

zfq947254420 · September 6, 2021, 10:13am

参数条鱼wenda.gh (42.0 KB)
I don’t know how to use “Region Difference” to deal with this all together, I can only deal with it as a group.

zfq947254420 · September 6, 2021, 10:14am

I want to deal with it all together

ferry59 · October 15, 2021, 2:05pm

this?