While CAD began with styluses and later moved to graphics tablets with tracing pucks, current software uses a mouse for interface (with some usage of 3D-specific tools such as Connexion's Spacemouse), with Moment of Inspiration 3D being notable as designed for a stylus.
This series of videos examines the UI of a CAD tool which uses a tablet/stylus and gestures.
This series of videos examines the UI of a CAD tool which uses a tablet/stylus and gestures.