A NEW CONCEPT OF SUPPORTING COMPLEX MODEL BUILDING IN VAGUE DISCRETE INTERVAL MODELLING
To support shape conceptualization vague discrete interval modelling is proposed. Dedicated operators (i.e. positioning and constrained instantiation operators) are being developed to assist the designer in building complex products that cannot be parameterized. Position operators facilitate specification, maintenance and modification of positional relations between interval shapes. Constrained instantiation operator supports selecting various product alternatives and at the same time maintaining positional and geometric constraints of the product. This paper presents the fundamentals of positional relations between vague shapes, the concept of position and constrained instantiation operators, and their application to industrial design.