Sketchpad III: a computer program for drawing in three dimensions

  title={Sketchpad III: a computer program for drawing in three dimensions},
  author={Timothy E. Johnson},
  booktitle={AFIPS '63 (Spring)},
An important area of investigation for the M.I.T. Computer-Aided Design Project is the development of a facility for three-dimensional shape description. The heavy dependence of mechanical design upon three-dimensional objects makes such a facility an indispensable part of the full system which is envisioned. This paper describes the unique features required for three-dimensional graphics. Although the Sketchpad III System described here shares many features and routines with the Sketchpad… CONTINUE READING