Development And Research On The Continuous Garment CAD Platform

Garment CAD (Computer Aided Design) is an advanced computer technology to realize the design of product and engineering. The popularization and applying of CAD technology has an importance economic and strategic meaning for the acceleration of traditional industry. To accelerate the process of garment CAD and make it adapt to the situation of clothing industry's rapid development, this subject put forward the development and researching of CGCP(Continuous Garment CAD Platform)by the theory of object oriented.The development of CGCP is based on the theory of constraint-based parametric design. It sets up the all-dimension constraint to achieve parametric driven and provides a series of mathematics models to resolve constraint and establish the method base. Parametric design is also based on figure-feature. Owning to making the relationship of feature between figure and pattern by a powerful database of parametric characteristic, it ensures the continuity of figure and pattern during the all design process.CGCP is a platform for clothing pattern design and its nuclear is E.S. (expert system). The auto design of pattern utilizes the inference technology in the field of A.I. (Artificial Intelligence) To sum up the change rule from a large number of styles and set up the perfect knowledge base. Then express the relationship between the rule and dimension of the clothing structure design to the expert knowledge and inference mechanism. The research includes: at first, with the example of men-suit, sum up the change rule of its style and pattern, determine the pattern design rule, finish the knowledge acquisition of pattern design. After that, finish the knowledge representation and the discernment from style describe to pattern by reasoning. CGCP not only has knowledge base and inference mechanism, but provides the function of knowledge expanding and learning. It creatively applies the barcode technology to clothing pattern design and makes the user not only get the pattern from system rules, but draft his own rules and add to system's rule base. It offers a more flexible and effective way to operate pattern design.The development and researching of CGCP changes the traditional theoryand method of clothing pattern design. It combines the advanced CAD technology to clothing industry's professional skill, so it largely enhances the software's continuous property and intelligent degree. It has been proved that it is helpful to improve the special level of garment pattern CAD and it created a new way to popularize and apply, which adapts to the condition of our country.