This maybe a very basic query – how to flip a polysurface in grasshopper? I know there is a button to flip a single surface but how can we flip a polysurface?
You can explode the polysurface, flip the faces with regular flip surface, then join back together.
Or you an use this method from Rhinocommon: https://developer.rhino3d.com/api/RhinoCommon/html/M_Rhino_Geometry_Brep_Flip.htm
Or Pufferfish has a Flip Polysurface component.
Cool, thanks Michael!