Shape grammars and shape rules

How to generate various graphics and how to produce patterns automatically according to the ideas, requirements and rules of the people (experts), are quite important problems in the computer aided design (CAD) and design automation (DA). This paper presents an approach, using shape grammars, on the basis of shape rules to design pictures, which is a preliminary practice of solving the problems artificially. SGIS2D-2D shape grammar and shape rule interactive system has been run on IBM3033 mainframe and IBM PC AT with graphic terminal in PASCAL. This practice has shown that rule—based generating graphics is a good design paradigm.