Algodoo

A real-life plotter works by moving a felt-tip pen over a surface, much like how a human would write.
Aside from the fact that plotters don't usually draw curves- they make discrete segments, connected end-to-end.

This scene simulates a plotter where your mouse is the pen. At regular intervals, it draws a line on the screen from the end of the previous line to the current position of the mouse.

In the future, I may revise it so it can take in an array, or perhaps fixate the entire line together.