Graphic Disposal Subsystem Of Packaging CAD System

Packaging upholster design is very important in packaging field. Designing graph professionally is primary mask of packaging upholster. At present, much software, which is applied in packaging upholster design based on engineering application, these software do not aim at packaging engineering. There are a lot of limitations when these software are applied in packaging upholster. Therefore, it is very necessary to design packaging upholster CAD system which is special characteristic. The graphic disposal subsystem which is designed by packaging CAD subassembly will resolve these limitations of current software.This article recounts characteristics of packaging upholster design, definition, attribute and characteristic of packaging CAD subassembly. Design abstract basic class of subassembly, data members and member functions of every idiographic subassembly class that derive from basic class. After forming every subassembly class successfully, bring forward some means of resolving key techniques, which are subassembly select, geometry transform, save, layer technique and data exchange etc.The article that is compiled with Visual C++ and Object Oriented methodarrives at expectable aim. We can draw simple packaging structure drawing and complex decoration drawing using this system. It strengthens sales promotion of packaging, reduces design cycle and improves design quality.