Adds a Bezier cubic curve to the receiver’s path.
The destination point of the curve segment, specified in the current coordinate system
The point that determines the shape of the curve near the current point.
The point that determines the shape of the curve near the destination point.
You must set the path's current point (using the
move(to:) method or through the creation of a preceding line or curve segment) before you invoke this method. If the path is empty, this method raises an
func relativeLine(to: NSPoint)
Appends a straight line segment to the receiver’s path starting at the current point and moving towards the specified point, relative to the current location.