• Title/Summary/Keyword: 도면 분석

Search Result 588, Processing Time 0.025 seconds

3D GIS Network Modeling of Indoor Building Space Using CAD Plans (CAD 도면을 이용한 건축물 내부 공간의 3차원 GIS 네트워크 모델링)

  • Kang Jung A;Yom Jee-Hong;Lee Dong-Cheon
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
    • /
    • v.23 no.4
    • /
    • pp.375-384
    • /
    • 2005
  • Three dimensional urban models are being increasingly applied for various purposes such as city planning, telecommunication cell planning, traffic analysis, environmental monitoring and disaster management. In recent years, technologies from CAD and GIS are being merged to find optimal solutions in three dimensional modeling of urban buildings. These solutions include modeling of the interior building space as well as its exterior shape visualization. Research and development effort in this area has been performed by scientists and engineers from Computer Graphics, CAD and GIS. Computer Graphics and CAD focussed on precise and efficient visualization, where as GIS emphasized on topology and spatial analysis. Complementary research effort is required for an effective model to serve both visualization and spatial analysis purposes. This study presents an efficient way of using the CAD plans included in the building register documents to reconstruct the internal space of buildings. Topological information was built in the geospatial database and merged with the geometric information of CAD plans. as well as other attributal data from the building register. The GIS network modeling method introduced in this study is expected to enable an effective 3 dimensional spatial analysis of building interior which is developing with increasing complexity and size.

A study on building outline simplifications considering digital map generalizations (수치지도 작성을 위한 건물외곽선 단순화기법 연구)

  • Park, Woo-Jin;Park, Seung-Yong;Jo, Seong-Hwan;Yu, Ki-Yun
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
    • /
    • v.27 no.1
    • /
    • pp.657-666
    • /
    • 2009
  • In GIS area, many line simplification algorithms are studied among generalization methods used for making the building data in the form of digital map from the original line data. On the other hand, there are few studies on the simplification algorithm considering the drawing rules of the digital map in Korea. In this paper, the line simplification algorithm based on the drawing rules is proposed as the methodology to create or update the building data of digital map by extracting the building outline from the CAD data used in construction. To confirm the usefulness of the algorithm, this algorithm and four other effective and general line simplification algorithms (e.g., Douglas-Peucker algorithm) are applied to the same building outlines. Then, the five algorithms are compared on five criteria, the satisfaction degree of the drawing rules, shape similarity, the change rate of the number of points, total length of lines, and the area of polygon. As a result, the proposed algorithm shows the 100% of satisfaction degree to the drawing rules. Also, there is little loss in four other mentioned criteria. Thus, the proposed algorithm in this paper is judged to be effective in updating the building data in digital map with construction drawings.

Digital Processing and Acoustic Backscattering Characteristics on the Seafloor Image by Side Scan Sonar (Side Scan Sonar 탐사자료의 영상처리와 해저면 Backscattering 음향특성)

  • 김성렬;유홍룡
    • 한국해양학회지
    • /
    • v.22 no.3
    • /
    • pp.143-152
    • /
    • 1987
  • The digital data were obtained using Kennedy 9000 magnetic tape deck which was connected to the SMS960 side scan sonar during the field operations. The data of three consecutive survey tracks near Seongsan-po, Cheju were used for the development of this study. The softwares were mainly written in Fortran-77 using VAX 11/780 MINI-COMPUTER (CPU Memory; 4MB). The established mapping system consists of the pretreatment and the digital processing of seafloor image data. The pretreatment was necessary because the raw digital data format of the field magnetic tapes was not compatible to the VAX system. Therefore the raw data were read by the personal computer using the Assembler language and the data format was converted to IBM compatible, and next data were communicated to the VAX system. The digital processing includes geometrical correction for slant range, statistical analysis and cartography of the seafloor image. The sound speed in the water column was assumed 1,500 m/sec for the slant range correction and the moving average method was used for the signal trace smoothing. Histograms and cumulative curves were established for the statistical analysis, that was purposed to classify the backscattering strength from the sea-bottom. The seafloor image was displayed on the color screen of the TEKTRONIX 4113B terminal. According to the brief interpretation of the result image map, rocky and sedimentary bottoms were very well discriminated. Also it was shown that the backscattered acoustic pressurecorrelateswith the grain size and sorting of surface sediments.

  • PDF

Design of Geothermal Resource Information System (지열자원 정보시스템의 설계)

  • Baek, Seung-Gyun;Kim, Hyoung-Chan;Park, Jeong-Min
    • 한국신재생에너지학회:학술대회논문집
    • /
    • 2008.05a
    • /
    • pp.646-649
    • /
    • 2008
  • 최근 유가 폭등으로 관심이 고조되고 있는 청정 재생에너지인 지열자원의 효과적인 개발 및 활용을 위하여 그동안 축적된 지열조사 및 연구정보를 체계적으로 저장,관리, 도시할 수 있는GIS기반의 지열자원 정보시스템을 개발하고자 하였다. 이를 위하여 열물성, 지온경사, 지열류량, 열생산율, 열부존량 등 지열조사 자료를 수집 및 분석하여 공간적 특성과 역할에 따라 기본정보, 참조정보, 분석정보, 부가정보의 4개 자료군, 39개 단위데이터로 분류하였고, 각 단위데이터의 속성 선정과 연계를 위한 GIS 데이터 모델링을 통하여 공간데이터베이스를 설계하였다. 지열자원 정보시스템은 도면표시, 자료조회, 분석/통계등 전반적인 GIS 기능을 이용하여 지열자료의 조회 및 분석이 용이하도록 설계하였다.

  • PDF

선박 구조가 인명 생존율에 미치는 영향에 대한 연구 -세월호 사고를 계기로-

  • Kim, Won-Uk;Hong, Jeong-Hyeok;Jang, Eun-Gyu
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
    • /
    • 2014.06a
    • /
    • pp.127-129
    • /
    • 2014
  • 이 연구에서는 세월호 사고를 계기로 선박의 구조가 인명 생존율에 미치는 영향에 대해 분석하고자 한다. 분석 기법은 피난전용시뮬레이터를 이용하여 선박의 다양한 구조 및 상황을 적용하여 분석한다. 향후 정확한 선박의 도면 및 실제 상황을 적용하여 정확하고 세밀한 분석 결과를 도출하면 승객 및 선박 승무원의 생존율 향상에 필요한 여러 가지 조건 중 하나로 사용될 수 있을 것으로 본다.

  • PDF

Analysis of Central Metropolitan Area of Daeieon City based on Land Values using a GIS (GIS를 이용한 지가(地價) 위주의 대전광역시 중심지 분석)

  • Kim, Sang-Soo;Kim, Kye-Hyun
    • Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
    • /
    • 2008.10a
    • /
    • pp.341-347
    • /
    • 2008
  • 본 연구에서는 대전광역시를 대상으로 지가의 중심성을 측정 하고 분포특성을 파악하여 도시의 계획 및 관리방안을 모색하는데 필요한 기초자료로 제공하고자 한다. 지가분포에 대한 관련이론 및 선행연구를 통해 지가가 중심지에 미치는 영향을 고찰하였으며, 지가의 분포특성에 따라 중심지가 어떻게 분포 되어있는지를 파악할 수 있었다. 분석방법으로는 ArcGIS 9.2버전 Spatial Analysis를 사용하여 공간내삽(interpolation)을 통해 등치선도를 작성하여 시각화 하였으며, 축별 3차원 경향도면을 작성하여 중심지 범위를 파악하였다. 그 결과 대전광역시의 중심부이자 신시가지인 둔산지역과 구시가지인 은행동 지역이 중심지역으로 나왔으며, 이 외에 부도심지역인 유성과 신탄진 그리고 주거중심지역인 노은동으로 나타났다. 중심지 범위는 신시가지가 상당히 넓게 분포되어 있었으며, 그 외 지역은 좁게 분포되었다. 도시의 계획적 관리를 위해서는 매년 지가를 분석하여 모니터링을 한 후 야기된 문제점을 보완해야 할 것으로 사료된다. 향후 시계열적 분석을 통한 중심지의 과거 변화특성을 통해 미래의 문제점을 미리예측하고 예방할 수 있는 연구가 필요하다.

  • PDF

서울시 1:1,000 수치지형도 갱신에 관한 연구

  • 김윤종;박수홍;이석민;최진무
    • Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
    • /
    • 1998.11a
    • /
    • pp.49-53
    • /
    • 1998
  • 서울시 수치지형도를 유지관리하기 유지관리의 제도적, 기술적 방안과 유통 및 공급방안이 수립되어야 한다. 본 연구에서는 제도적 방안을 위해 갱신주체, 대상 지형지물, 갱신주기, 공공 측량 승인 및 심사절차, 행정적인 절차 등의 요인을 분석하여 네 가지 방안을 제시하였고 기술적 방안을 위해 현재 수치지형도를 갱신할 수 있는 도면에 의한 디지타이징, 수정도화, 항공사진 스캐닝에 의한 방법, 수치정사사진에 의한 방법 등을 비교·분석하였다. 또한 유통 및 공급방안을 위해 공급대상, 공급내용, 공급형태, 공급방법 등을 분석하였다. 이러한 분석을 통해 현재 제작완료 단계에 있는 서울시 수치지형도의 유지관리 및 공급을 위한 최적의 방안을 제시할 수 있었다.

  • PDF

Actual Condition of Inconsistency at the Boundary Areas of Administrative Districts (행정구역 경계지역에서의 지적불부합지 실태분석)

  • Hong, Sung-Eon
    • Journal of Korean Society for Geospatial Information Science
    • /
    • v.16 no.1
    • /
    • pp.57-65
    • /
    • 2008
  • This research is aimed at offering a fundamental data for the adjustment of cadastral inconsistency of administrative boundary areas from this time onward by analyzing actual conditions of cadastral inconsistency at the study areas by the use of digital topographic map and digital cadastral map of si-gun-gu boundary area. As a result of examining the actual condition of cadastral inconsistency at the surveyed areas, the extent of cadastral inconsistency of the neighboring administrative boundary areas was assessed as ${\pm}3.15m$ of RMSE on X coordinates and also assessed as ${\pm}2.85\;m$ of RMSE on Y coordinates; in addition, RMSE of the neighboring district of the administrative boundary areas on X coordinates was assessed as ${\pm}1.33\;m$, and ${\pm}0.75\;m$ of RMSE on Y coordinates respectively-thus, this research could suggest the fact that there has arisen a lot of cadastral inconsistency areas at administrative boundary areas.

  • PDF

CAD Data Conversion to a Node-Relation Structure for 3D Sub-Unit Topological Representation (3차원 위상구조 생성을 위한 노드 - 관계구조로의 CAD 자료 변환)

  • Stevens Mark;Choi Jin-Mu
    • Journal of the Korean Geographical Society
    • /
    • v.41 no.2 s.113
    • /
    • pp.188-194
    • /
    • 2006
  • Three-dimensional topological data is essential for 3D modeling and application such as emergency management and 3D network analysis. This paper reviewed current 3D topological data model and developed a method to construct 3D topological node-relation data structure from 2D computer aided design (CAD) data. The method needed two steps with medial axis-transformation and topological node-relation algorithms. Using a medial-axis transformation algorithm, the first step is to extract skeleton from wall data that was drawn polygon or double line in a CAD data. The second step is to build a topological node-relation structure by converting rooms to nodes and the relations between rooms to links. So, links represent adjacency and connectivity between nodes (rooms). As a result, with the conversion method 3D topological data for micro-level sub-unit of each building can be easily constructed from CAD data that are commonly used to design a building as a blueprint.

Decision Making Support Tool for Master Architect in Design Development Phase of Mega-Project (메가프로젝트 기본설계단계의 Master Architect 의사결정지원 도구)

  • Cho, Dong-Hyun;Koo, Kyo-Jin;Park, Sung-Chul;Kim, Jong-Il
    • Proceedings of the Korean Institute Of Construction Engineering and Management
    • /
    • 2008.11a
    • /
    • pp.202-206
    • /
    • 2008
  • Recently, as high level of interest for the city regeneration, large-scale projects are planned or being performed such as reconstruction project. These mesa-projects have different characteristics from a single project in the design phase. It is a number of companies involved in design phase of mega-project and principal decision-making entity manage the project from the initial stage of an ongoing business by coordinating an opinions between design companies. The absence of a decision making support system reflected those characteristic causes a variety of problems such as a loss of cost and schedule. Therefore the final object of this paper is to propose a decision making support tool and system interface.

  • PDF