pub fn exact_station_seams2(
curve: &Curve2,
) -> Result<Vec<StationSeam>, GeomError>Expand description
station_seams2, refusing a curve with a seam whose distance is not
read from stored data alone.
ยงErrors
As station_seams2, and GeomError::UnsupportedInput for a
B-spline with a corner knot or a chain whose parametric piece has one.