基于GIS的园区通信光缆管理可视化研究

研究将地理信息系统GIS(Geographical Information System)引入到园区通信光缆管理系统中实现可视化的主要技术问题.设计一个基于GIS的园区通信光缆管理系统并实现其初步开发,介绍该系统的整体设计架构和实现.     

基于XML与中间件技术的GIS空间数据存取

为将地理信息系统（Geographic Information System,GIS）的空间数据存储于关系数据库管理系统（Relational DataBase Management System,RDBMS）中,利用RDBMS中的XML扩展功能,研究在DB29中以XML方式存储GIS空间数据的方法,实现shape文件空间数据在DB29中的存储,设计并实现数据访问中间件．研究表明该方法对某些GIS应用具有实用价值．     

一种设施管理平台：FMS*

分析了AM/FM/GIS 系统所管理的设施对象的特征,设计了一种构建于通用GIS (Geographic Information System)基础之上的电信设施管理平台：FMS（Facilities Management System）, 对该设施管理平台的总体结构和特点作了阐述,对实现该平台的关键技术如规则库、设施对象的访问、图形接口的实现作了较为全面的说明。     

基于经济预测模型的SEMIS的设计

通过对某钢铁企业进行深入的业务调研和详细分析,从系统的组成、功能的要求、技术的实现等方面综合考虑,以经济预测模型和软件工程为基础,探讨了SEMIS(Steel Enterpnse Management Information System)的设计方法。现场的运行表明,该设计方法可使企业的经济效益提高4．16％,具有一定的推广价值。     

重大网络信息系统CUNMIS总体设计

重庆大学计算机网络信息系统 CUNM-IS(Chongqing University NetworkManagement Information System)的设计目标,是在大学校园环境范围内,以中、小、微异种计算机组成的高速局部网络为基础,建立为各系、各部处和校长、付校长服     

基于GIS的环境经济决策支持信息系统研究

基于环境经济大系统这一理念,把计算机技术和环境科学与经济发展问题结合起来;基于地理信息系统（Geographic Information System,简称GIS）的信息获取、处理、管理和分析系统地理空间数据,提出了环境经济决策支持信息系统的框架,解决了区域经济发展与环境保护的矛盾,实现了环境保护和经济活动决策的信息化。     

基于C/S与B/S混合模式的ZX-EIS设计与实现

从企业的实际需求出发，根据现代企业的信息化目标，应用三层C／S和三层B／S混合模式，设计了ZX-EIS(ZhongXiang Enterprise Information System，简称ZX-EIS)信息系统的网络结构、总体架构、功能模块。讨论了混合模式在ZX-EIS中的应用和实现，并对ZX-EIS中关键技术的实现做了详细的介绍。     

基于Linux的ARM9嵌入式车载信息系统的设计与实现

通过对嵌入式处理器分析研究,采用了基于ARM9处理器和嵌入式Linux操作系统的嵌入式系统作为车载信息系统（Vehicle Information System,VIS）的控制平台,详细设计了VIS硬件结构和VIS软件流程,并在ADS环境下进行V C＋＋编程,成功地实现了系统基本功能。该系统具有集成度高以及可扩展性特点。     

动态网页课程设计演示平台的设计与实现

应用泛域名解析和基于主机头的虚拟主机技术,设计和实现了以SQL Server为后台数据库,以Serv-U FTP为FTP服务器,以IIS（Internet Information System）为WEB服务器的＂动态网页＂课程设计演示平台。学生使用该平台拥有自己的次级域名和虚拟主机空间,可演示本课程的设计效果。     

管理信息系统的发展趋势与我国的现状及发展对策

本文分析了当前MIS(Management Information System)的开发环境,概述了MIS的发展趋势;讨论了我国MIS的现状、存在的问题以及发展对策。     

Matlab和C语言集成下的Oracle Spatial空间插值方法研究

基于Matlab提供的CAPI函数以及OracleSpatial空间数据管理模型,论文给出了在VisualC++环境下利用Matlab的插值函数对OracleSpatial下的离散点进行空间插值的详细步骤和应用实例。作者认为将C语言和Matlab结合起来实现对OracleSpatial空间对象的管理和操作,是实现快速开发GIS应用程序的一条有效途径。     

A 3D GIS-based interactive registration mechanism for outdoor augmented reality system

Registering virtual objects with reference to their corresponding real-world objects plays a key role in augmented reality (AR) system. Although there have been a lot of work on using vision-based method to perform registration for indoor AR system, it is very difficult to apply such registration method for outdoor AR system due to the inability to modify the objects in outdoor environment and the huge range of working area. 3D Geographic Information System (GIS) is capable of providing an outdoor virtual geographic environment where users are located at, which may provide users with a corresponding virtual object for the one in the physical world. In this study, a 3D GIS-based registration mechanism is proposed for outdoor AR system. Specifically, an easy-use interactive method for precise registration was developed to improve the performance of the registration. To implement the registration mechanism, an outdoor AR system built upon 3D GIS was developed, named Augmented Reality Geographical Information System (ARGIS). ARGIS has the capability of performing precise registration in outdoor environment without using traditional vision tracking method, which thus enables users to arbitrarily manipulate the system. A prototype was developed to conduct experiment on the campus of Peking University, Beijing, China to test the proposed registration mechanism. The experiment shows that the developed registration mechanism is feasible and efficient in the outdoor environment. The ARGIS is expected to enrich the applications of outdoor AR system, including but not limited to underground facility mapping, emergency rescue and urban planning.     

水质遥感信息与GIS集成方法与实现

讨论了RS和GIS技术及其集成的内在涵义、相互关系。以太湖流域的多源水环境监测信息为对象,将灰度图像数据与地面实测数据相结合,提出了基于RS、GIS集成技术的太湖流域动态监测分析方法。以RS、GIS和VisualBasic为工具,开发了太湖水环境监测信息管理系统,并简单地阐述了该系统的组成,通过对实际监测数据的处理和表达,说明了该系统在快速、高效、实时等方面具有明显优势。     

A virtual reality application for geometry classes

Abstract  In communicating information about geometric figures, one drawing may be worth many hundreds of words and, therefore, visualisation aids for complicated three-dimensional (3-D) solid objects are very helpful for both teacher and students. This paper describes the use of the Virtual Reality Modelling Language (VRML) to visualise 3-D objects for middle school geometry classes in a networked environment and shows its usefulness for both teacher and students. In class, the teachers use VRML objects retrieved from their server and students are allowed to explore these objects accessing the teachers' server via the world-wide web. A comparison of the test results from VRML-based geometry classes and traditional classes, that solely depend on verbal explanation with paper and pencil, show that the application of VRML-based 3-D objects has a positive affect on students' learning of geometric topics.     

基于ORDB的GIS空间数据组织与实现

分析了关系数据库和面向对象数据库对各类信息存储的适应性;根据GIS对空间复杂数据存储和管理的需要,设计和实现了基于对象关系数据库ORDB的GIS底层数据库;并对部分关键表的功能和对象的方法进行了较详尽的描述。     

Overview: The common lisp object system

The Common Lisp Object System is an object-oriented system that is based on the concepts of generic functions, multiple inheritance, and method combination. All objects in the Object System are instances of classes that form an extension to the Common Lisp type system. The Common Lisp Object System is based on a meta-object protocol that renders it possible to alter the fundamental structure of the Object System itself.     

基于固定网格划分和面向类对象的四分树空间索引机制

本文针对地理信息系统中的空间对象形态的不同规则性和空间查询区域的不规则性。提出了一种基于固定网格划分的四分树空间索引机制。     

Borland C^＋＋ for Windows下应用程序展示屏幕的设计与实现

本文介绍了用Ｂｏｒｌａｎｄ Ｃ＾＋＋开发Ｗｉｎｄｏｗｓ应用程序创建展示屏幕的一种通用方法，对实现展示屏幕有关的重要知识（如：位映像图等）也作了介绍。并给出了与创建展示屏幕有关的Ｂｏｒｌａｎｄ Ｃ＾＋＋源程序清单，对读者用Ｃ＾＋＋开发Ｗｉｎｄｏｗｓ应用程序界面具有重要意义。     

一个基于对象代理模型的多表现地理信息系统

文中提出了一种基于对象代理模型的实现多表现GIS的新方法。通过地理对象的代理对象来定义多表现,因此代理对象可以用来表示对象的视角多样性和角色多样性。通过对象更新迁移可以支持动态分类和系统一致性维护。另外,对象及其代理对象之间的双向指针使得跨类查询变得非常容易,从而可以扩展查询的范围。文中实现了一个基于对象代理模型的多表现GIS原型,性能测试表明该方法比传统的方法更加有效。     

Multimethods in C++ using recursive deferred dispatching

The author proposes a new approach for multimethod implementation in C++ based on recursive deferred dispatching. The proposed approach provides a partially broken dependency between target classes and a broken dependency between target classes and multimethods. This approach provides multimethods with strong type safety and constant execution time. A multimethod is a virtual method of several objects. Programming languages such as Dylan and the Common Lisp Object System (CLOS) allow for multimethods.