pub fn swept_disk_along_loop(
pieces: &[PathPiece],
radius: f64,
inner_radius: Option<f64>,
fillet_radius: Option<f64>,
chord: f64,
) -> Result<TriMesh, GeomError>Expand description
swept_disk_along_pieces round a loop (#248): the last piece ends
where the first starts, that joint is mitred, filleted or tangent like
any other, and the walls close on the first station without caps. A
frame that comes back turned is twisted back uniformly over the loop’s
clear length (see the module notes and PipePlan::twist).