The third party OCC graphic kernel uses it
I have no idea what this is about, so I'm unable to help.
How make Sketch like Épure (Monge's diagram) ?
O.T. - but maybe interesting:
Code: Select all
DRAWEXE Draw> Draw> source /usr/share/opencascade/samples/tcl/bottle.tcl Constructing bottle body... Constructing threading... Putting together and writing "Open CASCADE"... Showing result... Draw> mu4