面向GIS的测量绘图软件设计

讨论了生产面向ＧＩＳ数字地图所需要解决的问题,提出面向对象的方法开发面向ＧＩＳ的测量绘图软件,给出用ＯｂｊｅｃｔＡＲＸ环境,ＯＤＢＣ技术进行软件开发的技术要点及空间数据结构模型,实践证明,该方法是可行的。     

GIS工程建设中的快速原型法实践

本文从分析ＧＩＳ工程建设的特点和要求入手，阐明了快速原型法在ＧＩＳ工程建设的软件开发的地位与作用，继而简述了原型法开发模型的思路，并对ＢＩＳ原型开发工具的使用与特点进行了分析。     

基于Windows的GIS多窗口图形编辑工具

Ｗｉｎｄｏｗｓ一推出，使得操作ＰＣ机和软件开发的过程发生了革命性的变化。Ｗｉｎｄｏｗｓ的应用软件同一般ＤＯＳ应用软件相比，推广更为容易，操作更为简便。Ｗｉｎｄｏｗｓ全新、漂亮的图形界面为广大使用计算机图形操作的用户所青睐。同样，以图形操作为主的ＧＩＳ也因这一新技术的问世，大大缩短了开发周期。但是Ｗｉｎｄｏｗｓ应用程序开发采用的是一种类似面向对象的方法，它是以消息传递机制完成各种操作的，因此软件开发初期难度较大。本文结合Ｗｉｎｄｏｗｓ的一些特点，探讨了在Ｗｉｎｄｏｗｓ环境下开发ＧＩＳ图形编辑工具遇到的一些问题，如ＧＩＳ数据在Ｗｉｎｄｏｗｓ下的管理，多任务、多窗口构造，各功能窗口设计的一些思想、特点，各窗口处理函数的构造，消息在Ｗｉｎｄｏｗｓ应用程序中的传递实现等，旨在推进Ｗｉｎｄｏｗｓ技术在ＧＩＳ软件开发中的应用。     

面向对象的GIS结构设计

本文提出了一种以地理实体为中心加空间数据结构模型－面向对象的ＧＩＳ结构模型。在此基础上，讨论了利用规范关系存贮ＧＩＳ中的各种基本数据，以及用ＮＦ２（Ｎｏｎ－ＦｉｒｓｔＮｏｒｍａｌ－Ｆｏｒｍ）的嵌套结构描述和构造面向对象的几何数据，从而实现了面向对象的ＧＩＳ结构设计与管理，提高了ＧＩＳ系统的生命力，简化了系统的开发进程。     

GIS工具软件可视化设计中的几个问题

本文从地理信息的可视化,可视化编程和可视语言,用户界面的可视化三个方面论述了ＧＩＳ工具软件的可视化设计,并阐述了ＧＩＳ工具软件可视化设计的色彩设计方法。     

基于面向对象数据模型（OODM）构建GIS一体化数据库的应用与实现初步研究

由于ＧＩＳ是集图形,图像,属性等多种数据源于一身的空间信息管理系统,因此当前该领域研究热点之一就是如何构建一体化的数据管理体制,本文首先分析了现有ＧＩＳ空间数据库机制的不足,然后介绍了目前数据库领域中一种新型的数据模型－面向对象数据数据模型,分析了采用面向对象数据模型建立ＧＩＳ空间数据库的现实意义和优势,对开发基于面向对象数据模型的ＧＩＳ一体化数据库技术路线进行了初步研究,并对有关实现方法进行了比     

地理信息系统软件GISID二次开发接口的设计

首先分析了现有基础地理系统软件二次开发接口的不足,提出在ＧＩＳ软件二次开发接口的设计中引入软件技术,介绍了它的技术内容和发展过程。最后给出了利用该技术为我校基础ＧＩＳ软件ＧＩＳＩＤ设计的一个全新的面向对象的开发环境,即面向对象的二次开发接口。     

九十年代GIS软件系统设计的思考

ＧＩＳ应用领域的拓宽与计算技术的进步，对ＧＩＳ的系统设计不断提出新的挑战。本文站在发展角度，讨论了矢－栅一体化的概念，数据结构的功能设计，ＳＱＬ语言局限性，面向对象技术的应用，ＧＩＳ全局检索以及ＧＩＳ智能化等问题，作者认为采用面向对象技术实现多数据类型的混合操作，是ＧＩＳ登越决策应用阶段的技术关键。     

面向对象GIS中地图符号组织的研究

用面向对象的方法对ＧＩＳ地图符号进行了抽象分类：对地图符号库的建立与输出形式作了设计,对面向对象ＧＩＳ中地图符号的组织实施过程作了论述。     

办公系统中图文一体化输出的设计与实现

目前 ,大多数管理信息系统仅是用于处理文字信息的ＭＩＳ(数据库管理系统 ) ,或是处理文字信息的ＭＩＳ系统和图形管理(ＣＡＤ)分开的系统 ,并不是真正的ＧＭＩＳ(ＧＩＳ与ＭＩＳ集成 )系统 ,这些系统的特点是图文分开办公、图文分开输出 ,办公效率低。当前组件式软件的理论和开发技术都已经比较成熟 ,使ＧＩＳ和ＭＩＳ的集成成为可能 ,使图文一体化的办公系统成为可能。一、组件式软件开发及ＧＩＳ组件ＯＯ(面向对象 )技术已进入到成熟的实用化阶段 ,促进了组件技术的发展。在组件技术的概念模式下 ,软件系统可以被视为相互协同的对象集合 …     

面向对象的配电GIS系统空间数据模型与组织

GIS在配网自动化系统中的应用越来越深入和广泛,随着配电网络各种设备的复杂性提高,传统的分析设计方式已很难满足现有配电网络的飞速发展。面向对象的分析与设计方法作为一种先进的系统设计方法,能很好地应用于规模较大、层次较复杂的配电网络设备管理。首先简要介绍配电网络的特点和面向对象的分析方法,然后结合面向对象的分析与设计方法对配电网络的对象模型和数据组织进行了详细阐述和分析,最后以一个应用系统作为实例结束本文。     

一种新的二进制地图矢量文件格式设计

比较了二制文件与文本文件的优点,以线状数据为例设计了便于文档序列化,易于面向对象ＧＩＳ进行了的二进矢量地图文件格式。     

面向对象的空间数据采集

本文主要介绍在Turbo C++支撑下,用面向对象的方法,对地图的空间数据进行采集、分类、编辑、净化。该系统利用C++中面向对象的概念及类的继承与地图数据的层次关系相吻合的特点,使得数据的输出能满足更多的要求,并且针对地图数据量大的特点,引入了多态和动态覆盖相结合的方法,以满足内存和速度两方面的要求。     

Geodatabase与公交网络数据建模

随着城市交通的迅猛发展,交通问题已成为各国政府面临的首要问题,建立智能交通系统,将先进的地理信息技术引入城市道路交通管理已是必由之路。论文对公交网络数据模型进行深入分析。论文介绍了一种全新的面向对象的空间数据模型——Geodatabase,并对公交网络数据进行建模。     

基于OGRE引擎的三维矿山爆破设计与实现

在三维矿山、爆破原理和爆破设计原则的基础上,采用Visual Studio 2010中的Visual C++环境,使用OGRE三维引擎、QT、三维GIS等技术手段,自主研发了三维可视化系统软件。对矿山巷道、岩层、炮孔进行三维建模,实现了爆破设计可视化、爆破二三维联动显示、炮孔布局与绘图、爆破效果预测,从而简化了爆破设计人员的设计工作,减轻了劳动强度,提高了爆破设计的准确性和矿山开采的数字化程度。     

Integrating spatial data analysis functionalities in a GIS environment: Spatial Analysis using ArcGIS Engine and R (SAAR)

Spatial data analysis (SDA) tools to efficiently handle and explore spatial data have become readily available. Although these SDA tools have their own strengths and purposes, they suffer from limited support in terms of a development environment offering easy customization and high extensibility, a strength of open source software. This article presents a standalone software package for SDA in a geographic information system (GIS) environment, called Spatial Analysis using ArcGIS Engine and R (SAAR), which provides an integrated GIS and SDA environment. A set of SDA tools in SAAR utilizes functions in R using R.NET, while other tools were developed in .NET independent of R. SAAR provides an efficient working environment for both general and advanced GIS users. For general GIS users with limited programming skills, SAAR furnishes advanced SDA tools in a popular ArcGIS environment with graphical user interfaces. For advanced GIS users, SAAR offers an extensible GIS platform to help them customize and implement SDA functions with relatively little development effort. This article demonstrates some functionalities of SAAR using census data for Texas counties.     

Towards a Participatory GIS: Evaluating Case Studies of Participatory Rural Appraisal and GIS in the Developing World

The recognition that local participation is a critical goal of development has contributed to the popularity in a set of techniques designed to increase local participation and knowledge in planning processes. Identified as participatory rural appraisal (PRA), this trend is marked by the use of a variety of high-end technologies, including geographic information systems (GIS). An interesting and related trend has come from members of the GIS community who argue that a "participatory GIS" is required to ensure local knowledge and participation in a variety of planning initiatives. This synergy of interests has resulted in a growth of research in the developing world that attempts to merge PRA methods with GIS tools. This paper examines the separate, but increasingly complementary, traditions of PRA and GIS. Ten case studies that combine participatory methods with GIS in Latin America, Africa, and Asia are evaluated to consider how these traditions are being applied by communities to protect ownership of territory, present local knowledge of natural resources, and to engage in long-term planning. This paper suggests that although GIS has the potential to increase participation in planning processes, a commonality of the majority of case studies is limited attention to the participatory process itself. It would address how access to information and GIS tools varies within communities, as well as the effectiveness of a participatory GIS in shaping policy outcomes. Although participation can be advanced through the use of GIS, this paper concludes by suggesting that research on the availability of these tools should not serve as a substitute for critical analyses of their use and effectiveness by local communities.     

Temporal data mining using genetic algorithm and neural network —A case study of air pollutant forecasts

This paper integrates genetic algorithm and neural network techniques to build new temporal predicting analysis tools for geographic information system (GIS). These new GIS tools can be readily applied in a practical and appropriate manner in spatial and temporal research to patch the gaps in GIS data mining and knowledge discovery functions. The specific achievement here is the integration of related artificial intelligent technologies into GIS software to establish a conceptual spatial and temporal analysis framework. And, by using this framework to develop an artificial intelligent spatial and temporal information analyst (ASIA) system which then is fully utilized in the existing GIS package. This study of air pollutants forecasting provides a geographical practical case to prove the rationalization and justness of the conceptual temporal analysis framework.     

GIS Tools for Freshwater Biodiversity Conservation Planning

The Nature Conservancy (TNC) has developed a set of customized GIS tools to help ensure that freshwater biodiversity is adequately incorporated into its regional conservation planning efforts. The tools generate GIS data and attributes that support a regional‐scale classification of freshwater systems and analysis of the potential integrity of these same systems. They have been implemented by TNC in more than 30 ecoregions across the U.S., and work is expanding to include other parts of the Americas. The tools are now in their second iteration. While the first version of the tools worked only with the RF3 hydrography dataset available in the U.S., the second version is more flexible and will function with a variety of datasets. Future improvements in the tools could include an improved interface and improved algorithms to reduce data pre‐processing needs. The GIS tools, documentation, and data from completed ecoregions are now publicly available on the Internet.