| For the clothing industry,the dependence on human resources and low degree of automation make a huge gap from the goal of intelligent manufacturing.Among them,the complicated and tedious process of garment pattern-making is a big obstacle to the intelligent production.Therefore,many researches on the intelligent garment CAD system of patterns have been carried out in the academia.But nowadays in the field of garment pattern CAD,the lack of expert knowledge digitalization and the complexity of parametric modeling lead to the low intelligence of the patternmaking system.In order to solve the problem above,this paper designs and development an intelligent CAD system of pattern for womans’ trousers based on the analysis of style design of trousers and principle of pattern-making.Firstly,this paper analyzes the business requirements of the system from two aspects,style design and pattern-drawing,and designs the overall architecture and modules of the system.Then,based on the analysis of the expert knowledge of pattern-making for women’s trousers,designed the intelligent pattern-making function: the componentized style design and a domain specific language describing the pattern-making rules for the parameterized pattern-making process.The business logic related to expert knowledge is abstracted into data,and the system’s evolubility,expansibility and intelligence are realized by using the method of data-driven style design and pattern-making.Next,this paper introduces the technical details of the system implementation based on the graphic C++ framework QT,including the establishment of expert knowledge base,the interpreting of pattern-making rules and the conversion of standard garment pattern files.Finally,the practicability of the system is proved by testing,and the work of this subject is summarized and prospected.Using this system,the user only needs two steps,component-based garment style design and size input,to get a customized clothing pattern,and it obviously improves the efficiency of pattern-making process in garment enterprises.The development of intelligent garment pattern CAD system has broad prospects and great potential. |
