• Title/Summary/Keyword: 3D 도면

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The Digital Drawing Production Using Digital Camera (디지털 카메라를 이용한 수치도면작성)

  • Choi, Seung-Pil;Park, Jong-Sun;Choi, Chul-Soon
    • Journal of Korean Society for Geospatial Information Science
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    • v.12 no.3 s.30
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    • pp.91-97
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    • 2004
  • As for the former analogue method of photogrammetry, We have obtained final digital drawing by creating the stereo model from overlapped images through orientation process using plotting instrument and processing restitution procedure. However, digital photogrammetry batch processes such using small computer system thus We make an attempt automatization of the procedures. And without the production of stereo model, We could obtain 3D digital data through analysis method. Therefore, an objective of this study was to implement a surveying system that could 3D surveying positions using the digital image to reduce limitations of control point surveying and photographing conditions more efficiently to produce digital drawing. By the result, photogrammetry can practice and make out digital drawing to a computer by digital camera of a comparative low-cost. Small scale area can become practical use to drawing production etc. for facilities management because area can make out digital drawing economically than general surveying.

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A Study on Calculation of Interior Construction Area Using 3D Modeling Program (3D 모델링 프로그램을 활용한 인테리어 공사면적 산출에 대한 연구)

  • Ha, Seung-Beom
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.1
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    • pp.531-537
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    • 2023
  • Interior construction is required to estimate the quantity of material and the cost expected from 2D drawing in design phase and look for the reasonable method of work. Therefore, exact estimation for quantity and budgeting are very important processes, as a measure of judging the profitability of interior construction. These processes are mostly based on 2D drawing, so time and experienced staff are required. Error and omission can occur because the experienced staff also calculates the area using 2D based drawing. Interior market is currently based on 3D modeling from planning to final design. Accordingly, estimating quantity based on 3D modeling is emerging as a way of reducing error and omission. This paper will present the methodology on calculating area, the basic element of estimating quantity based on 3D Modeling in interior field.

Analysis of Georeferencing Accuracy in 3D Building Modeling Using CAD Plans (CAD 도면을 활용한 3차원 건축물 모델링의 Georeferencing 정확도 분석)

  • Kim, Ji-Seon;Yom, Jae-Hong;Lee, Dong-Cheon
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.25 no.2
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    • pp.117-131
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    • 2007
  • Representation of building internal space is an active research area as the need for more geometrically accurate and visually realistic increases. 3 dimensional representation is common ground of research for disciplines such as computer graphics, architectural design and engineering and Geographic Information System (GIS). In many cases CAD plans are the starting point of reconstruction of 3D building models. The main objectives of building reconstruction in GIS applications are visualization and spatial analysis. Hence, CAD plans need to be preprocessed and edited to adapt to the data models of GIS SW and then georeferenced to enable spatial analysis. This study automated the preprocessing of CAD data using AutoCAD VBA (Visual Basic Application), and the processed data was topologically restructured for further analysis in GIS environment. Accuracy of georeferencing CAD data was also examined by comparing the results of coordinate transformation by using digital maps and GPS measurements as the sources of ground control points. The reconstructed buildings were then applied to visualization and network modeling.

A Study on Optimal Laser Scanning method for Reverse Engineering at Interior Remodeling Project (리모델링 프로젝트의 역설계 적용을 위한 최적 3차원 레이저 스캐닝 정보 획득 방안에 관한 연구 - 실내 리모델링을 대상으로 -)

  • Lee, Sangseol;Kwon, Soonwook
    • Korean Journal of Construction Engineering and Management
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    • v.15 no.3
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    • pp.3-11
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    • 2014
  • Recently, remodeling construction project has been prevalently conducted in major city areas in Korea. However, remodeling construction project has a difficulty in conducting a construction because of non-existing drawing or lack of drawing information. To solve these problems, modeling techniques by using reverse engineering have been widely studied in other industries such as aerospace and automobile industry. But reverse engineering techniques have not been used in remodeling construction projects because those technology haven't supplied less accuracy during required time for surveying. So, this study suggests optimal method of acquiring accurate 3D laser scanner information for reverse engineering at interior remodeling project.

3D Architecture Modeling and Quantity Estimation using SketchUp (스케치업을 활용한 3D 건축모델링 및 물량산출)

  • Kim, Min Gyu;Um, Dae Yong
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.7 no.6
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    • pp.701-708
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    • 2017
  • The construction cost is estimated based on the drawings at the design stage and constructor will find efficient construction methods for budgeting and budgeting appropriate to the budget. Accurate quantity estimation and budgeting are critical to determining whether the project is profitable or not. However, since this process is mostly performed depending on manpower or 2D drawings, errors are likely to occur and The BIM(Build Information Modeling) program, which can be automated, is very expensive and difficult to apply in the field. In this study, 3D architectural modeling was performed using SketchUp which is a 3D modeling software and suggest a methodology for Quantity Estimation. As a result, 3D modeling was performed effectively using 2D drawings of buildings. Based on the modeling results, it was possible to calculate the difference of the quantity estimation by 2D drawing and 3D modeling. The research suggests that the 3D modeling using the SketchUp and the calculation of the quantity can prevent the error of the conventional 2D calculation method. If the applicability of the research method is verified through continuous research, it will contribute to increase the efficiency of architectural modeling and quantity Estimation work.

Mobile Augmented Reality for Teaching Bar Placing (철근 배근 교육을 위한 증강현실 컨텐츠 개발)

  • Park, U-Yeol
    • Journal of the Korea Institute of Building Construction
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    • v.18 no.5
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    • pp.471-477
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    • 2018
  • The purpose of this study is to develop an mobile augmented reality for students to learn bar placing work, which is increasingly utilized in the construction field. In order to improve the understanding of the structural drawing, a structural drawing is used as a marker image, and an augmented reality is realized by superimposing a virtual 3D bar placing model that is placed according to the structural drawing on the screen. In addition to the 3D modeling, the contents are developed so as to help students to learn the interpretation method of 2D drawings, the development and splices of reinforcing steel, bar fabricating practice according to KCI structural concrete design code, and the process of bar placing. The results show that the augmented reality is positively evaluated in terms of interface style, perceived usefulness, perceived ease of use, perceived enjoyment, attitude toward using, and intention to use. The augmented reality is worth to be introduced because it has advantages of visualization and interaction in terms of education.

Development of Virtual Reality Multi Screen Simulation System based on BIM (BIM 기반의 가상현실 다면투사 시뮬레이션 시스템 구축)

  • Seo, Myoung-Bae;Park, Hyung-Jin
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.30 no.3
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    • pp.231-238
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    • 2017
  • Using 3D based BIM(Building Information Modeling) enables a variety of construction simulations. The is no case to simulate BIM demonstration experiment on deeply immersed virtual reality environment in korea. This paper develops a multi screen based simulation system to enable 3D based immersed environment to diverse decision making and virtual construction simulation. In a developed simulation laboratory, we can carry out BIM drawing review, disaster evacuation simulation, constructability review on wild land and design urban planning using haptic device on 3-side space with 4K resolution . Also, It can review large amount of drawings without data conversion because of compatibility with BIM software.

3D Digital modeling Method for Concept Developing Process in Architectural Design & Drawing (설계 및 도면작성단계에서의 디지털모델링방법연구 I)

  • Koh, In-Lyong;Dong, Jae-Uk
    • Journal of The Korean Digital Architecture Interior Association
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    • v.1 no.1
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    • pp.39-45
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    • 2001
  • The purpose of this study is to suggest the possibility which can use as instrument of design by CAD system. And it proposes how makes 3D object model through 2D Drawings in Design process. This study has review the 'Study Drawing' in design process, and application method of CAD as the Architectural Design Integration System. The Architecture can work in ani of the traditional 2D representations as well as in 3D and immediate visual feedback of his work in isometric and perspective projrctions.

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Generation Model for BIM Elements based on Architectural Drawings (2D 건축도면기반 BIM 엘리먼트 생성 모델)

  • Bae, Chang-Joon;Park, Sang-Hun;Cho, Dong-Hyun;Koo, Kyo-Jin
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2018.05a
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    • pp.68-69
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    • 2018
  • The construction drawing is a collection of knowledge that has accumulated knowledge and experience of designers and is highly valuable for recycling in the future. BIM is a process and technology that acquires and manages the information needed for the whole life cycle of a building. In order to recycle digitalized 2D drawings in BIM Tool, it is required to use 3D information based on the drawing information to save and reuse them, but there is little research on related methods or system development. In this study, 3D elements are created based on 2D drawing information, and libraries are constructed, and BIM Tool is used to improve the recyclability of drawing information.

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Improved Link System of Schedule and 3D Object for Visualizing Effective 4D Model on Plant Project (플랜트 4D의 효율적 공정연계체계를 위한 일정 및 도면의 개선된 연계방법론 구축)

  • Kang, Leen-Seok;Moon, Hyoun-Seok;Park, Seo-Young;Yoon, Sun-Mi
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2006.11a
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    • pp.559-562
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    • 2006
  • Existing 4D systems are using the 1:1 link system that directly links a schedule and a 3D model object. But considering that plant facility includes various kinds of schedule and 3D model object, this study suggests an improved link methodology of multi-selected objects and two-way link system for minimizing link errors which generated in case of multi-selected objects. For the link system, this study introduces a new concept called as interface board. Interface board can be used as an information center for representing all information of link items in the current project. It may be expected that 4D model can build an effective and rapid link system of plant project by this new approach.

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