A Graphic Database for Interactive CAD Development

This paper is concerned with a graphic database, which plays a central role in computer aided design for very complicated and structured objects like mechanical products. A new approach is proposed here to answer the question of how to manipulate it intcractively in the design process. This graphic database enables the CAD system to be set up as a well-defined organization, and also greatly helps improve the man-machine interface between the system and the designers.