How To Draw Irregular Plot in AutoCAD

This video will show how to draw irregular plot area in AutoCAD.
It will help students who are preparing for AutoCAD interviews.
for straight path, I can just do the arraypath with arcs to generate sine-wave-like wavy line. However, if I have some irregular path, this method is going to brake the line and the wavy line is not exactly follow the curvature of the path. Is there anyway to do this in autoCAD? Like bend the object along the path or deform the object along the path. In 3D case, I would like to have a helix following the path.
I need the exact geometry to be wavy not just the looking.
In inkscape, I can use pattern-along-path selecting with "single,stretch" or "repeat,stretch". It will be very surprising, if a professional CAD software does not have this function. @Doktoro Reichard, thanks! Please refer to the 2 PDFs, where you can zoom as much as you want.

[@Nuruzzaman189]

Helpful Post. So many Thanks.