58 巻 (1992) 548 号 p. 1297-1303
This paper presents a high-functional 2-D CAD (Computer-Aided Design) system which is novel and quite different from conventional 2-D CAD (Computer-Aided Drafting) systems. This is the first report preceding the second one which mainly deals with the realized powerful functions called dimension-matching functions. In this paper, we first discuss the insufficiency of the present 2-D CAD systems. Based on the discussion, we then propose a structural model of a mechanical drawing, i. e., both attribute and relation representation models, for representing the highly organized information which mechanical drawings have. Finally, We show a method of automatically generating a relation representation model using knowledge processing.