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1.
The Potential of Maps APIs for Internet GIS Applications 总被引：2，自引：0，他引：2
T Edwin Chow 《Transactions in GIS》2008,12(2):179-191
Since the launching of Maps Application Programming Interfaces (APIs) in 2005, many web developers, including geographers and non‐geographers, applauded the freely adaptable tools and used them to spawn numerous Internet applications. The success of the Maps APIs is largely attributable to its no‐cost policy, the availability of global data coverage, dynamic navigation, query capability, and ease of implementation. Despite its versatility in dynamic exploration of geographic data online, the existing Maps APIs lack Geographic Information System (GIS) functionalities compared to other Internet Mapping Services. The goal of this research was to review the potential of the Maps APIs for Internet GIS applications. This research employed the Google Maps API and developed a web prototype that disseminates spatial information of urban sprawl in Mundy Township, Michigan. The results revealed that both vector and raster data could be effectively represented by using the Maps API. Moreover, the Geographic Markup Language (GML) approach illustrated great potential for developing Internet GIS solutions around open specifications. This research suggested several potential solutions to expand the spectrum of GIS operations of the Maps APIs by incorporating the XML‐related technology and extending the JavaScript library. 相似文献
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Laxmi Ramasubramanian 《Transactions in GIS》1999,3(4):359-380
Both Geographic Information Systems (GIS) implementation successes and failures can be attributed to many factors, some that have little or nothing to do with the technology. While the discourse in the developed world has shifted from examining GIS implementation in isolation, developing countries appear to be still bogged down by many institutional barriers that impede implementation. In this context, an integrative implementation framework that takes into consideration politics and policy issues is developed to understand, explain, and assess GIS implementation in developing countries. The uniqueness of country-specific problems is acknowledged and juxtaposed against a body of theory in order to evaluate GIS implementation efforts. Based on reflective accounts of implementation efforts in three developing countries, four overarching characteristics of successful GIS implementation across country contexts are identified. These include clarity in problem definition, forging strategic alliances, incremental planning, and developing local knowledge. GIS implementation is likely to occur only when individuals and organisations creatively challenge existing norms, organisational defensive routines, and inefficient bureaucratic practices. Therefore, successful GIS implementation in developing countries is a likely outcome of critical reflective practice that relies on the capacity of empowered individuals and groups rather than solely on organisational structures. 相似文献
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《地理信息系统科学与遥感》2013,50(4):333-357
A cross-platform Web-based Java development framework for Mobile Geographic Information Systems (Mobile GIS) and remote sensing (RS) applications is introduced for the notebook computer, Pocket PC, and mobile phone platforms. Using these platforms, Java software technology is examined for its crossplatform utility in the development of various Mobile GIS and map/image display functions. The three case studies developed with Java 2 Standard Edition (J2SE), Java 2 Micro Edition (J2ME), and Mobile Information Device Profile (MIDP) are examined within the context of mobile GIS. Significant challenges in developing cross-platform Mobile GIS applications are also discussed. These obstacles include heterogeneous operating systems, different wireless communications protocols, lowbandwidth network connections, and the general lack of usability. 相似文献
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当前的理信息系统(Geographic Information System,GIS)数据应用体系框架在数据更新、数据与需求一致性、数据质量保证等方面存在不少实际问题,在分析上述问题的基础上,探讨了具体的解决方法,构建了完整的GIS数据应用体系框架,为GIS工程建设和运行提供了理论依据和更具操作性的实践经验. 相似文献
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Wayne L. Myers 《国际地球制图》2013,28(2):49-54
Geographic Information Systems (GIS) technology has had its genesis in the sophisticated computational context of research laboratories and commerical computing. Proprietary packages and a plethora of peripherals present problems in propagating GIS technology, both in developing countries and in conventional classroom settings. GISTARS (Geographic Information STARter System) is a training package developed under the auspices of the Office for Remote Sensing of Earth Resources at Penn State University by the author with support from USAID/India to promte interest in and understanding of GIS technology. It runs on generic PC‐compatible microcomputers having one or more diskette drives and a CGA card. A simple analog overlay device has been developed for converting source maps to digital form, so that training can be conducted without an electric digitizer. Documentation/tutorials are self‐contained. The software in executable form is non‐proprietary and may be freely copied and redistributed. It has served as the basis for a series of introductory GIS workshops given by the author in India. 相似文献
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为了提高WebGIS响应效率,满足用户对高交互性和炫酷界面的需求,提出采用RIA（丰富互联网应用程序）技术改善WebGIS传统结构模式存在的问题,介绍各种RIA技术并对比总结其优缺点,详细分析新兴的微软Silverlight技术特点,针对应用系统功能需求,利用Silverlight技术在ArcGISServer10平台上设计并实现基于RIA的成都市工业经济GIS系统,验证Silverlight在WebGIS富客户端的可行性。 相似文献
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对地理信息系统中空间数据和属性数据的输入方法进行了探讨。针对CAD图形文件转入GIS系统中遇到的常见问题,开发了基于AutoCAD的GIS工具箱,提高了GIS系统空间数据输入的效率。基于SuperMapObject开发了GIS系统属性数据批量输入模块,为GIS系统的大数据量数据输入提供了一个切实可行的解决方法。 相似文献
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《International Journal of Digital Earth》2013,6(3):175-193
The hypermap concept was introduced in 1992 as a way to hyperlink geospatial features to text, multimedia or other geospatial features. Since then, the concept has been used in several applications, although it has been found to have some limitations. On the other hand, Spatial Data Infrastructures (SDIs) adopt diverse and heterogeneous service oriented architectures (SOAs). They are developed by different standard bodies and are generally disconnected from mass market web solutions. This work expands the hypermap concept to overcome its limitations and harmonise it with geospatial resource oriented architecture (ROA), connecting it to the semantic web and generalising it to the World Wide Hypermap (WWH) as a tool for building a single ‘Digital Earth’. Global identifiers, dynamic links, link purposes and resource management capabilities are introduced as a solution that orchestrates data, metadata and data access services in a homogeneous way. This is achieved by providing a set of rules using the current Internet paradigm formalised in the REpresentational State Transfer (REST) architecture and combining it with existing Open Geospatial Consortium (OGC) and International Organization for Standardization (ISO) standards. A reference implementation is also presented and the strategies needed to implement the WWH, which mainly consist in a set of additions to current Geographic Information System (GIS) products and a RESTful server that mediates between the Internet and the local GIS applications. 相似文献
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矢量图形与主数据库无缝连接万维网地理信息系统的设计和实现 总被引：7，自引：0，他引：7
首先介绍了万维网地理信息系统、Ｊａｖａ和ＪＤＢＣ，讨论了目前万维网地理信息系统的设计和实现方法以及存在的问题，提出了矢量图形与主数据库无缝连接模型，并使用Ｊａｖａ和ＪＤＢＣ设计实现了万维网地理信息系统软件，使客户在客户端实现放大、缩小、漫游、查询、统计和分析等地理空间分析功能。 相似文献
12.
王家耀 《武汉大学学报(信息科学版)》2022,47(10):1535-1545
在Geographic Information System（GIS）近60年的发展演进中,理论和技术都取得了长足的进步;应用领域扩大到社会的方方面面,社会影响力越来越大;体系结构、开发模式和服务模式等都发生了深刻的变化。为了推动GISystem进一步向前发展,在综述GIS中之“S”的三种含义即System（系统）、Science（科学）和Service（服务）以及GIS近60年来取得的丰硕成果的基础上,重点就以下三个问题进行了讨论:（1）如何认识地理信息系统（GISystem）。首先解析地理信息系统的三个关键词（系统、信息、地理信息）,据此论述了地理信息系统的内涵,分析了地理信息系统同地图、计算机地图制图、地图数据库的关系,认为地理信息系统源于又超越了地图、计算机地图制图和地图数据库,并认为地理信息系统具有装备的特性。（2）地理信息系统是怎样发展演进的。重点分析了由“地理信息系统”到“地理信息服务”的发展演进的社会需求背景、技术背景、学科背景,从应用领域、数据资源和功能的扩展及体系结构、开发模式和服务模式等方面,分析了地理信息系统发展演进的主要表现。（3）地理信息系统的未来发展将走向何方。首先,讨论了正确理解地理信息系统应用领域扩展的问题,认为应用领域的扩展不可能是“无边无际”的;地理信息系统的未来发展必须面向国家经济建设和国防建设急需;在分析比较现有三种GISystem服务模式的基础上,认为采用“网格集成”与“弹性云”的“混合式”技术体制是GISystem服务模式的最佳选择;提出了基于“网格集成”与“弹性云”的“混合式”的时空大数据平台技术实现必须解决的6个关键技术问题和“时空大数据平台”的应用模式。 相似文献
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Claudia Robbi Sluter Corné P. J. M. van Elzakker Ivana Ivánová 《The Cartographic journal》2017,54(1):77-90
Geo-information solutions can achieve a higher level of quality if they are developed in accordance with a user-centred design that requires definition of the user requirements in the first step of solution construction. We treat a geo-information solution as a system designed to support human-based activities in a specific context through which solutions to contextual problems can be achieved via geographic knowledge. Geographic knowledge is a result of geo-data exploration, analysis, interpretation and dissemination with a given geo-information system. Taking the characteristics of geo-information systems into account, existing methods and techniques of requirements engineering may be applied for the design and implementation of geo-information solutions. Based on these considerations, here we present a generic framework that can aid geo-information experts, geo-informaticians and cartographers in the design and construction of more efficient, effective and satisfactory solutions. 相似文献
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数字城市地理信息公共平台作为统一的、权威的空间信息公共服务平台,在许多行业将得到广泛应用。以黄山市旅游地理信息公众服务系统开发为例,基于数字黄山地理信息公共平台发布的OGC服务以及利用ArcGISAPI forSilverlight等开发技术,从系统的总体设计以及系统功能实现2个方面,提出了一套切实可行的行业设计方案。 相似文献
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随着地理信息系统在三维数字城市建设的广泛应用,更加逼真且信息更丰富的三维立体导航逐渐在导航领域占据主导地位。以A nGeo三维地理信息系统软件为基础,研究了三维导航系统的设计与实现,该系统不仅可以提供基本的信息查询功能,还能完成三维互动式浏览、三维地图导航以及最佳路径选择的功能。 相似文献
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交通地理信息系统（Ｇｅｏｇｒａｐｈｉｃ Ｉｎｆｏｒｍａｔｉｏｎ Ｓｙｓｔｅｍ ｆｏｒ Ｔｒａｎｓｐｏｒｔａｔｉｏｎ）简称 ＧＩＳ— Ｔ,它是 ＧＩＳ技术在交通领域的延伸,是ＧＩＳ与多种交通信息分析和处理技术的集成。动态分段是模拟和分析线性特征的有效方法,是交通管理信息系统中不可缺少的工具模块,本文以安徽省公路管理地理信息系统为例,研究动态分段功能的实际应用,实践取得满意效果。 相似文献
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在介绍地理信息系统（GIS）基本功能的基础上，阐述了GIS在消防工程中（包括城市消防站的选垃、城市消防调度指挥、消防管理等方面）的应用，指出应用中存在和需要解决的一些问题，最后展望GIS在消防工程中的发展趋势。 相似文献
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高校GIS教育方向探讨 总被引：2，自引：1，他引：1
郑朝洪 《测绘与空间地理信息》2008,31(5)
在分析了地理信息系统技术的现状和发展趋势,地理信息系统教育的意义以及高校GIS专业教育面临的问题,提出地理信息系统教育应做好地理信息系统专业课程组构建与课程体系优化、基于学习型组织理念的师资队伍建设、教学方法和内容形式的改进以及各层次学生的培养目标等工作. 相似文献