/// <summary>
/// Returns the Euclidean length of the halfedge.
/// </summary>
/// <returns></returns>
public static double GetLength <V, E>(this Halfedge <V, E> hedge, Func <V, Vec3d> getPosition)
where V : HeVertex <V, E>
where E : Halfedge <V, E>
{
return(getPosition(hedge.Start).DistanceTo(getPosition(hedge.End)));
}
/// <summary>
/// Returns the Euclidean length of the halfedge.
/// </summary>
public static double GetLength <V, E>(this Halfedge <V, E> hedge)
where V : HeVertex <V, E>, IPosition3d
where E : Halfedge <V, E>
{
return(GetLength(hedge, IPosition3d <V> .Get));
}