group.invert

Group every element of the class that the group named by name leaves out. Written under as, which defaults to name: inverting in place. A name that is not a group of class is refused.

Inputs

• geometry (Geometry). The geometry carrying the group. A copy carrying its complement comes out.
• name (String, default ""). The group to complement.
• class (String, default "point", one of "edge", "point", "primitive", "vertex"). The element class the group lives on.
• as (String, default ""). The name the complement is written under. Left empty it is name, inverting the group in place.

Outputs

• geometry (Geometry). The input carrying the complement on class.

local tops = g.group.by_normal({ geometry = g.mesh.box({}), name = "top", class = "primitive", angle = 10 })
local sides = g.group.invert({ geometry = tops, name = "top", class = "primitive", as = "rest" })