A System for Creating a Curve Using Visual Language : An Attempt for Developing a Designer like CAD System (1)

Abstract

Designers create forms of products, they combinate "Visual Language (V.L.)" of form's basic elements which correspond to "words", and create forms which correspond to "sentences" for expressing formal semantics. However, studies on abstraction of V.L. for making product's curves and surfaces scarcely exist. So, inefficient and inhuman method of making them has been the main current yet. For example, designers control the curvature and make curves one by one by CAD systems. In this paper, at first we abstracted the points at issue of making curves and surfaces by existing CAD systems. Secondly we created V.L. and developed "a system for making curves using V.L." for solving the issue. We discuss its implementation on a computer, and show results of simulations by the system. By using our system, we can make curves by intuitional operations, without indicating the loci of a curve and controlling the curvature.