source files: xgtm.[ch], term/*.trm, gtplot.h
(GT-2D-DRAW '(2 3)) (SEND <gtm:terminal> :2D-DRAW '(2 3))
Draw a line segment from the driver/device's internal 2-D cursor to the given point, and leave the cursor at the new point. This is the basic 2-D drawing primitive.
This is an old-style call, not recommended for 3-D graphics.