It adopts the way of objectgraphicsoriented to describe the system, and it supports the whole process of analysis, design and modeling.
它采用面向对象图形的方式对系统进行描述，支持从分析、设计到建模的全过程。
2
Combined with the characters of the graphics and variational parameters, a CAD system was developed, based on objectoriented method for designing tire bladder and its mould.
Traditional graphics standard is analyzed in the paper. Characteristics and developing guidelines of objectorientedgraphics core systems are discussed using objectoriented concepts and motheds.