| 摘要: |
| ＸＹＺ系统是一套以线形时序逻辑为基础的ＣＡＳＥ环境系统，其核心是时序逻辑语言ＸＹＺ／Ｅ．ＸＹＺ／ＡＤＬ（ａｎｉｍａｔｉｏｎｄｅｓｃｒｉｐｔｉｏｎｌａｎｇｕａｇｅ）是ＸＹＺ系统在动画领域的应用．马华东博士采用基于时序逻辑的动画描述模型ＴＬＡＤ（ｔｅｍｐｏｒａｌ－ｌｏｇｉｃ－ｂａｓｅｄａｎｉｍａｔｉｏｎｄｅｓｃｒｉｐｔｉｏｎｍｏｄｅｌ），提出了动画剧本描述语言（ＳＤＬ／Ａ）．本文介绍的ＸＹＺ／ＡＤＬ语言是以ＸＹＺ／Ｅ的框架为基础扩充ＳＤＬ／Ａ而成．它使用ＸＹＺ／Ｅ中面向对象程序设计的基本结构——代理机构（Ａｇｅｎｔ）作为基本描述单元．代理机构由通讯进程和相应的包块构成，包块处理对象封装，进程处理通讯．从而能更方便地刻画动画过程中的复杂、多层次的角色（包括父子角色）的运动特征及多角色之间的同步协调关系，并且在统一的逻辑框架下实现了计算机动画中运动对象的行为抽象和运动的抽象描述，更具一般性． |
| 关键词: XYZ／E ADL 代理机构 角色 条件元 动画描述模型 |
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| 基金项目:本文研究得到国家863高科技项目基金、国家自然科学青年基金和国家“九五”攻关项目基金. |
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| The Application of XYZ System in the Animation Field |
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TANG Xiao ping,TANG Zhi song,MA Hua dong,ZHAO Chen
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| Abstract: |
| XYZ system is a CASE Environment based on the linear time temporal logic proposed by Manna and Pnueli, whose kernel is the temporal logic language XYZ/E. XYZ/ADL (animation description language) is its application in the animation field. Dr. Ma put forward the SDL/A (animation script description language) oriented towards the TLAD (temporal logic based animation description model). The XYZ/ADL language introduced in this paper is expanded from SDL/A on the base of the XYZ/E framework. It takes the object-oriented programming basic structure of XYZ/E-Agent as the main description unit.The agent is constituted of a process and a corresponding package.The package part serves for encapsulation and the process part for communication.Therefore it is more convenient to describe the action feature of the complicated actors (including the parent-child actors) and the concurrency among the multi-actors,and in a unified logic system it implements the actor's action abstraction and the movement's abstract specification,which is adaptive more generally. |
| Key words: XYZ/E animation description language agent actor conditional element animation description model. |
