Abstract
On industrial shape design, human designer establishes shape based on his/her own experiments and knowledge. In order to assist this process by artificial system, it is important to consider the individual factor of each designer. In this article, we propose an interactive design assistant system and show and example of bottle design. Human designer draw bottles' profiles on the window of this system. Profile curves are evaluated by the system with objective criterion based on the conventional structural analysis and by the human designer interactively with subjective his/her preference. At the next, profile curves are represented by the chain of local curvatures, encoded to chromosomes, assigned the fitness, which are evaluated by the system and the designer, and gathered to objective-and subjective-gene-pools in terms of the genetic algorithm. At the last, two chromosomes are selected from pools and new profile curve is generated through crossover and mutation operators as a design candidate. It is considered that the proposed system is capable to suggest the design candidate reflects the subjective preferences.
