Browser CAD/CAM for a pen plotter

Import SVG paths; draw simple shapes; edit points

Path optimisation: order paths to minimise pen-up travel (a greedy pass is fine, a better one is bonus)

Generate G-code for a pen plotter with pen up/down as Z moves, configurable feed rates

A simulator that animates the pen and reports total travel and time

Export the G-code and the optimised SVG

Hatching: fill a closed shape with parallel lines at an angle

Requirements