BD-GKS3D图形软件的设计与实现

THE DESIGN AND IMPLEMEN-TATION OF BD-GKS3D

BD-GKS3D是按图形国际标准GKS-3D(ISO 8805)开发的三维图形支持软件。本文讨论了该软件的设计原则:符合国际标准及尽可能高效率。还讨论了实现的策略,包括二维GKS与三维兼容问题,裁剪与变换,实现环境,图段的数据结构及三维输入等内容。最后对开发BD-GKS3D的工作量、与PHIGS,CGI的关系等作了说明。

BD-GKS3D is a 3D graphical support software developed according to the international standard GKS-3D (ISO 8805). This paper discusses the principles of designing this software: conforming to the international standard, and as fast as possible efficiency; the implementing strategies, which include the compatability of GKS and GKS-3D, clipping and transformation, implementing environment, data structure of the segment and 3D input, etc. Finally, the amount of work of developing BD-GKS3D, the relations between GKS-3D and PHIGS, CGI are discussed.