This class is missing documentation.
PolySpline.new( ... points)
.add(item, c1, c2)
.addAll( ... items)
.at(index)
.calcControls(depth: 1, func, loop: true)
.drawControls(dotRadius: 3, controlColor, pointColor)
Copy and paste the text below and save to HelpSource/Classes/PolySpline.schelp
link::Classes/PolySpline::