Function normal_projection 

pub fn normal_projection(
    model: &mut Model,
    target: &Shape,
    wire: &Shape,
    stations: usize,
    tolerance: f64,
    tol: Tolerances,
) -> OgeomResult<(Vec<Projected>, Built)>

Project every edge of wire onto the faces of target.

stations is how finely each edge is sampled; the fit is held to tolerance against those samples. Both are the caller’s, because both are the answer’s accuracy and this cannot guess what it is for.

Errors

OgeomError::Construction if stations is under four or tolerance is not a usable distance, and whatever the fit refuses.