- Dimensioning was the first new feature installed in
AutoCAD after COMDEX 1982, and the first deliberately intended as an
extra cost add-on. The complete design of the initial dimensioning
facility is presented here as an example of the developer
documentation of the period. This very crude first cut at
dimensioning became the entire content of the ``Advanced Drafting
Extension'' (then called, ``with Dimensioning'') offered as a $500
option with AutoCAD 1.2 in April 1982.