Function divide_face 

pub fn divide_face(
    model: &mut Model,
    shape: &Shape,
    face: &Shape,
    line: IsoLine,
    tol: Tolerances,
) -> OgeomResult<Built>

Cut face of shape in two or more along line, and rebuild shape around the pieces. The edges the line crosses are cut where it crosses them, in every face that holds them.

Errors

OgeomError::Construction if the line does not cross the face, runs along one of its edges, or the surface has no closed-form iso-curve.