Abstract
In order to employ the designer′s sensitivity and realize high quality designs, CAD systems which can carry out analysis evaluation of design properties quantitatively, and improve design based on the results is required. If the form image of curves and curved surfaces can be evaluated quantitatively and the design form image can be controlled based on the evaluation parameters, this will provide effective design support. In this research, we proposed parameters by which the image of forms can be evaluated quantitatively, and developed a system which constructs design form using the proposed evaluation parameters.
