Function chamfer_edge 

pub fn chamfer_edge(
    model: &mut Model,
    solid: &Shape,
    edge: &Shape,
    distance: f64,
    tol: Tolerances,
) -> OgeomResult<Built>

Bevel a straight edge of a solid, cutting distance back along each of its two faces.

The edge must be straight, convex, and shared by exactly two planar faces; the distances are equal (the symmetric chamfer). The result is the boolean difference with a wedge whose legs run along the two faces, so the history reads as a cut: the two faces are modified into their trimmed pieces, the edge’s neighbourhood gains the bevel face.

Errors

OgeomError::Construction if the edge is not straight, not convex, not shared by exactly two planar faces of solid, or distance is not a usable length.