- Spline( <List of Points> )
- Creates a cubic spline through all points.
- Spline( <List of Points>, <Order ≥ 3> )
- Creates a spline with given order through all points.
The result of the spline command is a curve. Spline algorithm is used for x and y coordinates separately: first we determine values of t that correspond to the points (based on Euclidian distances between the points), then we find cubic splines as functions t->x and t->y.