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 to start with; the fit is held to tolerance against the feet at those samples and between them, the sampling refined where it misses, and states what it reached where it cannot. 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.