The Research And Implementation Of Feature-based Forming Of Trunk Curved Surface And Three Dimensional Garment Exhibition

How to apply 3D technology to garment industry has become an important research direction. The 3D computer graphic's theory and technology has been used to apparel design,manufacture,management and selling.The research content of the thesis is the subprojects of "the national 11th-five-year science-technology support project" and "the Fujian new century elitist support project ".The thesis composes of two parts: one is feature-based human surface reconstruction; the other is three dimensional garment exhibition.The research content of the thesis is listed as follows:How to construct a three dimensional human surface quickly is the focus and difficulty of the three dimensional garment technology. The paper presents an easy way to construct personalized mannequin based on the requirement of the three dimensional apparel designs. This feature model is based on NURBS theories whose weight is set as 1. Aiming at the complicated characteristic of the human curved surface, this paper sets human body's six key curves as the datum line and applies curve interpolation to construct the three dimensional human model. The method of forming of trunk curved surface keeps the feature of the trunk curve surface and advances the efficiency of controlling trunk curve surface. By the three dimensional trunk curved surface, users can get the virtual trunk with its own characteristic. This paper also refers to some other arithmetic, such as: compressing three dimensional original human data, constructing human datum curve and fitting the curve surface. This forming method supply 3D human platform with theoretical foundation and key technologies.But this method does not behaves well when the feature size is altered too much.Aiming at the insufficiency of traditional exhibition mode, the paper explores how to exhibit garment in a three dimensional and interactive way. Traditional exhibition mode lacks facility or the interactivity between the users and 3D objects. The paper researches and designs the system of three dimensional garment exhibition which composes of three parts: the system based on computer, the system based on Internet, the system based on mobilephone.Users can browse three dimensional virtual garments and interact with it. This paper refers to many technologies, such as 3D modeling, OpenGL, Web3D, J2ME and JSR184. The computer-based 3D Garment Exhibition Subsystem chiefly uses the structure fo 3DS file and circularly reads the chunks of 3DS.The internet-based 3D Garment Exhibition Subsystem chiefly uses the API of Java3D and interacts with 3D objects by self-defining function.The mobilephone-based 3D Garment Exhibition Subsystem chiefly uses the JSR184 criterion which is specially used for 3D mobilephone development.And the effect indicates that the three dimensional garment exhibition has good performance. In future the relation between display quality and display speed must be balanced forward.Finally, the paper summarizes the research work and gives perspectives of technology and application of the project...