Tracing real rays - Revision 2020 Wild compo entry

A bit "tongue in cheek" entry for Revision-2020 demoparty presenting scanning of a 3D-object using GNSS-Stylus with a laser distance measurement module. I'm really sorry I couldn't raytrace so much desired toilet paper for you. I tried, but laptop's battery died just after raytracing the seat. I had a car battery and inverter that I later used to power the laptop. However the inverter or laptop's PSU was too close to the RTK base's GNSS-receiver and apparently caused so much interference that measurements went haywire with it. Already dismantled the setup and had to raytrace them separately in different coordinates and so couldn't mix the tracing process with the seat.