A unified reference model for CGM/CGI and its implementation

摘要

In this paper, we suggest a unified reference model for implementing the Virtual Device Interface (VDI) level ISO computer graphics, Computer Graphics Metafile (CGM) and Computer Graphics Interface (CGI). Most of previous works have taken a hierarchical approach. In contrast, we realize the mutual dependency between CGM and CGI. After analyzing the common parts of CGM and CGI. We design a set of sharable modules and clear interfaces between these Modules. Through combining these modules, the functionalities of both CGM and CGI are provided.