摘要：The advances of computer graphics and imape processing have made it possible to design advertisements by computers. Presently, many commercial systems have come into being, such as CorelDraw and PhotoShop. All of them are developed out of the idea of graphics system or image system. For the ads designer, what is actually needed is a system developed from the point of view of ads design domain. In this paper, an object-oriented design model called OOADS is presented, around which five categories of operations, namely CMPDS (Clip / Modify / Paste / Draw/ Select ) are organized. Key approaches with the operations such as representation and organization of objects, virtual clipping, shadow images are demonstrated. In the end, the implementation of OOADS is discussed.

摘要：A cad system for the cylinder head is developed. As an integrated system, it can be used in 3 D modeling, 2 D drawing and finite element structural analysis and optimization. The key problems in system designing are introduced. Design flow, system structure and how to solve the key problems are focused on. All of those would form the base for more research on how to use the modern cad technology to design complex engine parts. And it is also a good example of using the modern cad technology.

摘要：This article aims to discuss the design process of the cad system dedicated for sport bike frame structure, introducing in detail its design concept and the scheme of implementation. Based on the different usages of sport bikes and the requirements on the system made out by Beijing Hanglun Sport Apparatus Company Limited. Structural analysis on two types of bikes frames is carried out. The system defines the basic design parameters and analyses the constraint *** calculating formulas with constraint conditions are derived. The system solves equations with Visual C++ program, realizes input of the original data and output of the results through interactive system. With Autocad14.0 as the platform, the system uses VC++ and ObjectARX to realize auto output of bike frame graphics. The system has been put into use. Practice has affirmed that the system抯 convenience, applicability and reliability all have reached the expected goal.

摘要：Under the constantly changing production and marketing conditions including globalization,the fashion apparel industries are frequently restructuring to maintain customers and sustain *** of the methodologies adopted by manufacturers includes mass customization,which attempts to produce near custom made product at near mass production *** swimwear requires tighter fit tolerance and still has fashion content,it has been used in this study to illustrate the ease of design change,design modification,and ***-style design of swimsuit is very demanding and time-consuming if traditional design methods are *** manufacturers require systems with the capacity to deal with garment design process as a whole,including possibilities to work directly within a 3D graphic ***,it is realised that one of the major challenges in garment design concerns the physically-based simulation of production and 3D *** innovation method consisting of a computer-aided design(cad)system,allowing the designer to perform multi-style swimsuit design on a customized virtual human body,is presented in this *** 3D visualization and personalization of the simulation results are presented to help the designers to preview and determine whether the design of the swimsuit is satisfactory and then obtain feedback to improve their designs *** new functions of the virtual system provide the abilities to perform intelligent design of various swimsuit styles and materials for different body parts according to individual design *** advantages of innovative design method for swimsuit have been discussed in this paper and examples have been provided to illustrate the ease of use cad in design simulation and innovation.

摘要：Part and Draft modules of SolidEdge are used to construct 3D solid models and generate part drawings, while ActiveX Automation of VB is used to access engineering database files to realize dimension-driven modification of the designed parts. Moreover, VB plays the enabling role of integrating all work processes of gear pump design, resulting in a comprehensive cad system.