Journal of the Korean Geographical Society (대한지리학회지)

The Korean Geographical Society (대한지리학회)
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An Integrated Approach to the GIS Data Reengineering for the New Korea Geodetic Datum

세계측지계 도입에 따른 공간데이터 재정비를 위한 통합모델 연구

  • Lee Yang-Won (Center for Spatial Information Science, The University of Tokyo) ;
  • Park Key-Ho (Department of Geography, College of Social Sciences, Seoul National University)
  • Published : 2005.06.01
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Abstract

The newly adopted Korea Geodetic Datum (a.k.a. KGD2002) calls for massive reengineering work on geospatial dataset. The main focus of our study is placed on the strategy and system implementations of the required data reengineering with a keen attention to integrated approaches to interoperability, standardization, and database utilization. Our reengineering strategy includes file-to-file, file-to-DB, DB-to-file, and DB-to-DB conversion for the coordinate transformation of KGD2002. In addition to the map formats of existing standards such as DXF and Shapefile, the newly recommended standards such as GML and SVG are also accommodated in our reengineering environment. These four types of standard format may be imported into and exported from spatial database via KGD2002 transformation component. The DB-to-DB conversion, in particular, includes not only intra-database conversion but also inter-database conversion between SDE/Oracle and Oracle Spatial. All these implementations were carried out in multiple computing environments: desktop and the Web. The feasibility test of our system shows that the coordinate differences between Bessel and GRS80 ellipsoid agree with the criteria presented in the existing researches.

세계측지계의 도입에 따라 광범위한 공간데이터의 재정비가 필요하게 되었다. 이 연구에서는 이를 위한 통합모델로서 상호운용성과 표준화 및 공간 DB 활용에 기반한 구체적인 전략과 시범시스템을 제시한다. 세계측지계를 위한 지도데이터 변환은 파일변환과 공간DB 변환, 그리고 파일-공간DB 상호간 변환의 형태로 이루어질 수 있다. 이 연구에서 개발한 통합모델은 기존의 파일형식(예컨대, DXF와 Shapefile)은 물론 새로운 표준으로 권장되는 파일형식 (예컨대, GML과 SVG)의 세계측지계 변환이 파일형식 상호간에 이루어지도록 한다. 이러한 지도파일들은 세계측지계 변환모듈을 거쳐 공간DB로 임포트되거나 공간DB로부터 익스포트 될 수 있다. 또한, 공간DB의 세계측지계 변환은 단일 DB 내부변환과 함께 이질적인 DB간의 변환 (예컨대, SDE/Oracle과 Oracle Spatial)을 포함한다. 이 연구의 세계측지계 변환시스템은 다중컴퓨팅 환경을 고려하여 데스크탑과 인터넷 기반에서 동시에 운영되도록 구현되었다. 시험운영과 평가를 통해 본 연구에서 제안한 통합모델의 상호운용성과 타당성이 검증되었으며 또한 좌표변환의 결과도 기존 연구의 결과물과 일치함을 확인하였다.

Keywords

References

  1. Altamimi, Z., Sillard, P., and Boucher, C., 2002, ITRF2000: A New Release of the International Terrestrial Reference Frame for Earth Science Applications, Journal of Geophysical Research, 107(B10), ETG2/1-ETG2/19 https://doi.org/10.1029/2001JC001251
  2. Cho, K. J., 1996, A Study on the Transformation of Coordinate on TM Projection, Journal of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography, 14(2), 119-126
  3. Choi, Y. S., 2004, A Datum Transformation in Island and Sea around Korea, Ministry of Construction and Transportation, Korea
  4. Chung, W. I. and Bae, H. Y, 2003, Efficient Publishing Spatial Information as GML for Interoperability of Heterogeneous Spatial Database Systems, Journal of Korea Multimedia Society, 7(1), 12-26
  5. Jung, M. S., Park, J. T., and Kim, J. H., 2004, Vision and Policy Issues for National Geographic Information System in Korea, Korea Research Institute for Human Settlements
  6. Lee, Y.J., Cha, D. K., and Kim, S. Y., 1999, Analyses of Coordinates Differences in GRS80 Transformation, Journal of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography, 17(3), 265-272
  7. Lee, Y. J., 2002, Guidelines on the Transformation and Utilization of the New Korea Geodetic Datum, National Geographic Information Institute, Korea
  8. Lee, S. M. and Cho, S. H., 2004, An Implementation Plan to Convert GIS Data under ITRF System, Seoul Development Institute
  9. McCarthy, D. and Petit, G., 2003, IERS Technical Note No. 32: IERS Conventions (2003), International Earth Rotation and Reference Systems Service
  10. National Geographic Information Institute, Korea, 2003, The Notification of National Coordinate Transformation Parameters, National Geographic Information Institute, Korea, Notification No. 2003-497
  11. Open Geospatial Consortium, 2001, Geography Markup Language (GML) 2.0, available at http://www.opengis.org/docs/01-029.pdf
  12. Park, S. H., 1999, A New Implementation Strategy and Conceptual System Architecture for the Seoul Metropolitan Government's GIS, The Journal of GIS Association of Korea, 7(2), 237-253
  13. Si, J. I., Lee, H. J., and Ha, S. W., 2002, A Study on Seruice Models Standardization for the National Geographic Information System (NGIS), National Computerization Agency, Korea
  14. Snyder, J. P., 1987, Map Projections - A Working Manual, U. S. Geological Survey Professional Paper 1395, United States Government Printing Office
  15. World Wide Web Consortium, 2001, Scalable Vector Graphics (SVG) 1.0 Specification, available at http://www.w3.org/TR/2001/REC-SVG20010904/REC-SVG-20010904.pdf
  16. Yoon, H. S., Cho, J. M., and Song, D. S., 2003, A Study on the Coordinate Transformation for Digital Maps (II), National Geographic Information Institute, Korea
  17. Yoon, H. S., Cho, J. M., Song, D. S., Kim, M. H., and Cho, H. M., 2004, Development of Coordinate Transformation Tool for Existing Digital Maps, Journal of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography, 22(1), 29-36