Brlcad/How to mged/draw a cuboid

The following program demonstrates how to draw a simple 2x3x4 cuboid:

opendb cuboid.g y           # Create a database to hold our shapes units cm                    # Set the unit of measure in cuboid.s rpp 0 2 0 3 0 4 # Create a 2 x 3 x 4 cuboid named cuboid.s