Rotate curved surface around centroid (perpendicular)

Grasshopper
3

DUPLICATE THREAD!!!

  1. Your Srf param is not internalized.
  2. Your slider is degrees but Rot3D expects radians unless you right-click the ‘A’ input and choose ‘Degrees’ .
  3. The Rot3D ‘X’ (Axis) input wants the ‘normal’ vector, not a point.

Rotate Surface_2020Dec14a
Rotate Surface_2020Dec14a1170×398 52.4 KB

P.S. Wait, sorry, it’s even worse. EvalSrf doesn’t want the Area ‘C’ (Centroid)… :man_facepalming:

Rotate Surface_2020Dec14a2
Rotate Surface_2020Dec14a21078×372 61.4 KB

Rotate Surface_2020Dec14a.gh (46.9 KB)

P.P.S. 50K units from the origin!? Why, oh why?