Function segmented_reference_curve3 

pub fn segmented_reference_curve3(
    model: &Model,
    alignment: EntityId,
    units: AlignmentUnits,
) -> AlignmentResult<Curve3>

The exact cant-carrying centreline of alignment, an IfcAlignment.

The composition lower_segmented_reference_curve uses, returned directly so a caller can hand it to an evaluator; this crate never evaluates it.

Errors

As lower_segmented_reference_curve.