Abstract

CAD or computer aided design is an indispensable technology in industry today. However, output of CAD can be obtained only through two dimensional devices, though three dimensional data are handled in it. This requires operators to convert two dimensional data into three dimensional in their brain. Although several researches on CAD systems are carried out that provide environment in which operators can handle three dimensional objects in three dimensional space with three dimensional display, they need operators to wear special glasses or a head-mounted display.; besides their displays are not natural because they are based on only parallax.

© 1995 IEEE