• Title, Summary, Keyword: Web GIS

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Design and Implementation of Java-based Spatial Web Database System (자바기반 공간 웹 데이터베이스 시스템의 설계 및 구현)

  • Kim, Sang-Ho;Nam, Kwang-Woo;Ryu, Keun-Ho
    • The KIPS Transactions:PartD
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    • v.11D no.1
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    • pp.1-10
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    • 2004
  • According to the evolution of the Internet and wireless mobile communication technology, techniques for mobile databases and wireless web services are issued for them. Recently, these changes of geographic application environment increase the needs for development of new GIS database system for the web services and embedded system. In this paper, we proposed a Jana-based web database systems that can be used in the web-based GIS and mobile databases. This proposed system has been implemented using the Java to be displayed easily into the portable computing devices and Java-based web application servers and using OpenGIS for web data interoperability. Also, it can efficiently process web-based spatial queries by developing a spatial query processor including schema manager and a spatial object storage module.

Developing a Hybrid Web-based GIS for Improving Access to Distributed Spatial Data and Spatial Modeling Tools (분산형 공간모델링을 구현하기 위한 하이브리드형 웹기반 GIS의 개발)

  • Jun, Byong-Woon;Park, Chan-Suk;Jo, Myung-Hee
    • Journal of the Korean Association of Geographic Information Studies
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    • v.3 no.2
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    • pp.61-72
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    • 2000
  • The maturation of the Web technology has reshaped the ways in which data are accessed, disseminated, and shared. Thanks to its popularity along with the advance of spatial information technology, four major changes have been further made in traditional geographic information systems (GIS) in relation to access to data, distribution of data, access to GIS functionality, and visualization of multimedia data. Although access to and dissemination of spatial data over the Web has in recent years been addressed in the literature, little research effort has addressed the issue of access to and processing of GIS analysis functions over the Web. This research explores the potential use of Web-based GIS in improving accessibility to distributed spatial data and spatial modeling tools. A prototype Web-based GIS developed in this study focuses on Web-based location-allocation modeling for spatial decision support, and employs a hybrid approach that uses the Arc/Info software as a GIS server and CGM viewer as a client-side plug-in. This research shows that Web-based GIS is a useful vehicle in conducting spatial modeling in the particular user community. In addition, this study represents the possibility of Web-based GIS in developing open spatial decision supporting systems.

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Design and Implementation of Web GIS Server Using Node.js (Node.js를 활용한 웹GIS 서버의 설계와 구현)

  • Jun, Sang Hwan;Doh, Kyoung Tae
    • Spatial Information Research
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    • v.21 no.3
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    • pp.45-53
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    • 2013
  • Web GIS, based on the latest web-technology, has evolved to provide efficient and accurate spatial information to users. Furthermore, Web GIS Server has improved the performance constantly to respond user web requests and to offer spatial information service. This research aims to create a designed and implemented Web GIS Server that is named as Nodemap which uses the emergent technology, Node.js, which has been issued for an event-oriented, non-blocking I/O model framework for coding JavaScript on the server development. Basically, NodeMap is Web GIS Server that supports OGC implementation specification. It is designed to process GIS data by using DBMS, which supports spatial index and standard spatial query function. And NodeMap uses Node-Canvas module supported HTML5 canvas to render spatial information on tile map. Lastly, NodeMap uses Express module based connect module framework. NodaMap performance demonstration confirmed a possibility of applying Node.js as a (next/future) Web GIS Server development technology through the benchmarking. Having completed its quality test of NodeMap, this study has shown the compatibility and potential for Node.js as a Web GIS server development technology, and has shown the bright future of internet GIS service.

Developing Coast Vulnerable Area Information Management System using Web GIS (Web GIS를 이용한 연안위험취약지역 정보시스템 구축)

  • Pak, Hyeon-Cheol;Kim, Hyoung-Sub;Jo, Myung-Hee
    • Journal of the Korean Association of Geographic Information Studies
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    • v.8 no.4
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    • pp.155-164
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    • 2005
  • The coast has been known as very vulnerable area. This area has nature disasters such as typhoon, tidal wave, flood and storm almost every year. In this study, coast vulnerable area information management system was developed to manage the coastal facilities and vulnerable area through Web GIS. This system is able to visualize the damage area and support the official work related to coast as efficient DSS(Decision Supporting System). Moreover, the foundation for domestic coast information management is expected by acquiring less cost and time. For this, GIS DB was first constructed by acquiring damage factor data such as typhoon, tidal wave, flood and storm. Then GIS analysis methods and high resolution satellite images are used to possibly present the results of retrieve as table, map, graph, inundation simulation in real time.

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Design and Implementation of 3D Urban Landscape Simulation System Based on Web GIS (Web GIS 기반의 3차원 도시경관 시뮬레이션시스템 설계 및 구현)

  • Jang Mun-Hyun
    • Spatial Information Research
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    • v.13 no.1
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    • pp.103-117
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    • 2005
  • Information can be visualized as information technology and computers have recently made dramatic improvements. Thanks to the brisk effects of providing information in 3D on the web with the technological developments of Web 3D and virtual reality implementation in the Internet, there has been the trend to present geographic information in images and 3D. In this study, the Web 3D GIS technique was adopted in analyzing the current state of urban landscape and examining and predicting the urban landscape affected by new urban development businesses. As a result, it was expected that the study would be able to help the government agencies to reduce their errors in making urban landscape plans and policies and implementing them to provide objective and visual data, and to come up with a simulation system that could be used to reflect the residents opinions in plans and policies.

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Geovisualization of Migration Statistics Using Flow Mapping Based on Web GIS (Web GIS 기반 유선도 작성을 통한 인구이동통계의 지리적 시각화)

  • Kim, Kam-Young;Lee, Sang-Il
    • Journal of the Korean Geographical Society
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    • v.47 no.2
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    • pp.268-281
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    • 2012
  • In spite of the usefulness of migration statistics in spatially understanding social processes and identifying social effects of spatial processes, services and analyses of the statistics have been restricted due to the complexity of their data structure. In addition, flow mapping functionality which is a useful method to explore and visualize the migration statistics has yet to be fully represented in modern GIS applications. Given this, the purpose of this research is to demonstrate the possibility of flow mapping and the exploratory spatial analysis of the migration statistics in a Web GIS environment. For this, the characteristics of the statistics were examined from database, GIS, and cartographic perspectives. Then, O-D structure of the migration statistics was converted to spatial data appropriate to f low mapping based on the characteristics. The interface of Web GIS is specialized the migration statistics and provides exploratory visualization by allowing dynamic interactions such as spatial focusing and attribute filtering.

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Effective 3D Inner Model Visualization for GIS Web Service (GIS 표준 웹 서비스 적용을 위한 3차원 실내모델의 효율적 시각화)

  • Jeong, Jang-Yoon;Yom, Jae-Hong
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.27 no.1
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    • pp.701-711
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    • 2009
  • The inner space of building is increasingly becoming complex as urban activities increase in variety, and the actual space size also increases. This trend necessitate the utilization of three dimensional position information within the inner space of buildings. Standard GIS web service technology and visualization technology are applied to 3D inner space building data to share these information for better decision making in building related applications such as fire evacuation, facilities management and market analysis. This study aims to effectively model and visualize the three dimensional space of building interiors in the GIS aspect, and to be able to share the information through standard GIS web service. The various elements of inner model was assigned and stored into pre-designed spatial database tables respectively. GIS web server was then configured to service the database which was populated with 3D inner model data. On the client side, 3D visualization modules was developed using a 3D graphic rendering S/W engine.

Interoperability of Spatial Data through Open Web Map Server

  • Cho, D.S.;Jang, I.S.;Min, K.W.;Park, J.H.
    • Proceedings of the KSRS Conference
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    • pp.488-490
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    • 2003
  • Over the past few years, a number of studies have been made on web map services, which enable the GIS user to access spatial data through the web. They, however, have focused on only implementation techniques separately, such as map client implementation, map server implementation, communication between client and server, and the map data representation. Therefore, it is hard to share and practical use the spatial data, because they does not ensure interoperability in heterogeneous map servers. In this paper, we have designed and implemented the web map server with open architecture, which complies with the standard interfaces proposed by OpenGIS Consortium (OGC). In particular, we have extended the OGC’s interfaces for a map server to support one or more data sources. This paper has contributed to construction and practical use of web map services by newly proposing the method of implementation of a map server, which could be reused regardless of the types of data sources.

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A Development of WebGIS System for Industrial waste water Trust Management in Industrial complex (공단지역의 공장폐수 수탁관리를 위한 WebGIS 시스템 구축에 관한 연구)

  • Choi, Byoung-Gil;Kim, Tae-Hoon;Na, Young-Woo
    • Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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    • pp.377-380
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    • 2008
  • 본 연구의 목적은 인천지역의 공단에서 발생하고 있는 공장폐수의 위탁 및 부탁관리를 위한 WebGIS 시스템을 구축하기 위한 방안에 대하여 연구하는데 있다. WebGIS 시스템은 공단지역의 위탁업체와 수탁업체의 공간정보를 사용자에게 제공하고 공단지역에서 발생되는 공장폐수 위탁량 및 수탁량 분포도를 시민들에게 제공하는 기능을 수행한다. 공장폐수에 대한 정확한 발생량을 관리함으로써 인천지역에서 발생되는 수질오염사고를 사전에 예방하고 오염사고 발생 시 신속한 대처방안을 도출 할 수 있을 것으로 판단된다. WebGIS를 이용한 공장폐수의 위탁량 및 수탁량 분포를 관리함으로써 시민들의 환경오염에 대한 생각을 고취시키고 지속적인 관리가 가능 할 것으로 판단된다.

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Information Management System for Construction Works using Web GIS (Web GIS를 이용한 건설공사 정보관리 시스템)

  • Woo, Je-Yoon;Koo, Jee-Hee;Na, Joon-Yeop;Pyeon, Mu-Wook
    • 한국공간정보시스템학회:학술대회논문집
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    • pp.3-8
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    • 2002
  • 기존의 건설지원시스템은 주로 문자정보를 대상으로 구축되어 지형이나 공간정보와 같은 실세계에 대한 정보를 제공하는데 취약점이 있으나, GIS(Geographic Information System)는 이러한 문제에 대해 공간정보의 제공뿐만 아니라 설계지원시스템과 연계하여 효율적이고 체계적인 정보의 분석 및 지원 기능을 제공해 줄 수 있을 것으로 기대된다. 이에 더하여 다양한 네트워크의 구축 및 이를 통한 정보서비스의 발전은 GIS의 제공방식과 내용을 변모시키고 있으며 네트워크 상에서 즉각적으로 사용자에게 다양하고 동적인 GIS 솔루션을 제공할 수 있는 Web GIS의 활용이 확산되고 있다. 본 연구에서는 건설진행상황을 즉각적으로 확인하고 실시간으로 업무보고 및 업무지시를 수행함으로써 원격공정관리를 가능하게 하고, 나아가 단지 문서적인 업무보고에만 의존하여 보고자의 의도에 따라 수동적으로 의사결정을 내리던 관행에서 벗어나 Web GIS에 기반한 건설공사 정보관리시스템을 개발함으로써 건설공사 현황을 직관적으로 판단하고 의사결정을 내릴 수 있는 시스템을 구축하였다.

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