pub fn center_line_contour(
profile: &CenterLineProfile,
tolerance: Tolerance,
) -> Result<ContourProfile, GeomError>Expand description
Resolve a centre-line profile into an exact closed contour.
The boundary is the left offset walked forward, a butt end cap, the right offset walked back, and a butt start cap. Butt caps are used because the source states a width and an extent, not an end treatment: a round or square cap would add material the author never declared.