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An Interactive Simulation System consists chiefly of Graphics

交互式模拟系统主要由图形组成

基本信息

批准号：
61550266
负责人：
YAMAMOTO Yoshikazu
金额：
$ 0.83万
依托单位：
KEIO University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1986
资助国家：
日本
起止时间：
1986 至 1987
项目状态：
已结题

项目摘要

The purpose of the research was to design and implement an interactive system which consisted chiefly of graphics for discrete event simulation. The resulting system which is called GSS(Graphic Simulation System) highly utilizes a graphic display and supplies a user friendly simulation support environment.The GSS supports not only modelling but also simulation experiments and analysis of results. In this sense, the GSS is an integrated simulation support system. The GSS is an easy to use system even for untrained users because of its interactive capabilities based on graphic interface.The first object of this research was to design and implement a system for building a simulation model by making a component network which consisted of simple graphic primitives and specifying logical behavior of each component. The first version of the GSS was implemented on DEC-2020 by Simula as a system implementation language and transported to SIP1100 for improveng man-machine interface by Smalltalk-80.The capability of describing systems is a key factor of usability of discrete event simulation systems and/or languages. The author put generality on the logical specification part of the GSS to attain a general purpose simulation system. Thus the GSS has enough power to describe general purpose discrete event simulation models. The DEC version of the GSS was poor in man-machine interface for it used traditional interactive mode. The Smalltalk version improves this aspect to extend logical behavior specification by using object oriented programming paradigm.A transportation process to personal computers is not successful because of lack of processing power especially on multi-window handling. The capability for multi-window handling is essential in the structural model building phase. However, we plan to continue the effort at least on the model building part of the GSS for we can use colors on personal computers.

本研究的目的是设计并实现一个以图形为主的离散事件仿真交互系统。该系统高度利用了图形显示，提供了一个用户友好的仿真支撑环境，不仅支持建模，还支持仿真实验和结果分析。从这个意义上说，GSS是一个综合的仿真支撑系统。GSS具有基于图形界面的交互能力，即使对于未经培训的用户也是一个易于使用的系统。本研究的第一个目的是设计和实现一个建立仿真模型的系统，该系统由简单的图形元素组成的组件网络组成，并对每个组件的逻辑行为进行描述。GSS的第一个版本由Simula作为系统实现语言在DEC-2020上实现，并通过SmallTalk-80移植到SIP1100以改善人机界面。系统描述能力是影响离散事件仿真系统和/或语言可用性的关键因素。通过对GSS的逻辑描述部分进行通用性处理，实现了一个通用的仿真系统。因此，GSS具有足够的能力来描述通用离散事件仿真模型。DEC版的GSS由于采用传统的交互方式，人机界面较差。SmallTalk版本在这方面进行了改进，使用面向对象的编程范型扩展了逻辑行为规范。由于缺乏处理能力，特别是在多窗口处理方面，向个人计算机的传输过程是不成功的。在结构模型构建阶段，多窗口处理能力是必不可少的。然而，我们计划继续努力，至少在GSS的模型构建部分，因为我们可以在个人电脑上使用颜色。