• 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.

• 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.

• 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.

• Spatial Information Research
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• v.13 no.1 s.32
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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.

• Journal of Korea Spatial Information System Society
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• v.3 no.2 s.6
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• pp.45-51
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• 2001

It is difficult for existing construction support system to provide real-world information such as geographical and spatial data, geographic information system is expected to be able to supply efficiently analyzing and supporting function as well as actual data by connecting construction support system. Furthermore, the providing method and content of GIS are varied by building various network and information service, and use of web GIS which can offer diverse and dynamic solution on network is spreaded. In this study, information management system for construction works(CIMSGIS : Construction Information Management System on Web GIS) based on web GIS is developed, which can confirm instantly state of advance and manage construction progress by real-time reporting and instruction. Also CIMSGIS can support decision making on intuitive understanding and manifold operation reporting.

• 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.

• Proceedings of the KSRS Conference
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• 2003.11a
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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.

• 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.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2008.06a
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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.

• Proceedings of the KIEE Conference
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• 2007.11b
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• pp.217-219
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• 2007

GIS 부분방전 진단 시스템은 가스 절연개폐장치(GIS: Gas Insulated Switchgear) 내부에서 발생하는 UHF 대역의 부분방전 신호를 측정하며 이상신호가 발생하면 위상에 대한 부분방전 패턴을 분석하고 원인을 진단한다. 이러한 GIS 부분방전 진단 시스템은 다수의 변전소에 설치되어 운전되며 중앙제어센터에서 통합하여 관리하고자 할 경우 네트워크와 데이터베이스에 병목현상이 발생한다. 이에 본 논문에서는 Web을 통한 시스템의 분산화와 정보의 구분을 통한 정보의 분류로 병목현상을 줄이는 Web기반 GIS 부분방전 진단 시스템의 개발에 대하여 기술하고자 한다.