• Title/Summary/Keyword: 3D form study

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2D Lower Body Flat Pattern of the Women in Their Twenties Using 3D Scan Data (3차원 인체 형상을 이용한 20대 여성의 하반신 전개패턴에 관한 연구)

  • Yoon, Mi-Kyung;Nam, Yun-Ja;Choi, Kyeng-Mi
    • Journal of the Korean Society of Clothing and Textiles
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    • v.31 no.5 s.164
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    • pp.692-704
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    • 2007
  • Recently, Basic patterns with excellent body fitness and automation availability are required to be developed in order to automate the patterns of women's clothes. In this study, this reference points, reference lines and segments were fixed onto 3D scan data for the lower body the women in their twenties, they were directly spread out to be 2D flat pattern to facilitate development into the design of slacks adhered closely to the human body such as special and highly-functional clothes, and then slacks 2D pattern was developed for the purpose of seeking scientific approach to the development into basic form slacks and 3d emotional pattern. For conversion of 3D pattern into 2D flat pattern, reference points and segments were created by using Rapid Form of 3D shape analysis software, and triangle mesh of the body surface of the created shape was developed with Auto CAD 2005. The correspondence between slacks and human body was examined by the fixation of major reference lines. Specially, the wearing characteristics of slacks were considered by the fixation of side lines in consideration of posture. As a result of using the way of development to constantly maintain the length while 3D triangle mesh is converted into 2D flat mesh, the shape was shown to be excellently reproduced, and the area of flat pattern was increased compared to the shape of parting plane. Also, the sunk-in curve like the brief line of front crotch length needed a cutting line when it was closely adhered, when mesh was overlapped, and the pattern area was smaller compared to the actual shape.

A Study on the Feasibility of the 3D Scanning Method of Body Measurement and Wearing Evaluation (3D Scanner를 이용한 인체계측방법 및 플레어스커트의 착의형태평가방법에 관한 연구)

  • 김혜경;석은영;서추연
    • Journal of the Korean Society of Clothing and Textiles
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    • v.24 no.6
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    • pp.895-906
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    • 2000
  • The study planned to testify the accuracy of the 3D scanner through analyzing the human body measurement method and the evaluation of flare skirt with 3D scanner. The results obtained from this study were as follows; First, the results of measurement for the dress form and human body by 3D scanner were more accurate than one or two dimensional measurement method. Second, from the results of the scan for the flare skirts as worn the human body, we could obtain very accurate horizontal section map. Third, in the clothing ergonomics viewpoint, the accuracy of the 3D scanner was very excellent and its utility was higher than that of the moir photography method. Therefore, the 3D scanner is very useful for the human body measurement and the wearing evaluation. In a nutshell, this study illustrates that we have to develop a program of automatic human body measurement system which will enhance the application of the 3D scanner.

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A Study on the Use of 3D Human Body Surface Shape Scan Data for Apparel Pattern Making (의류 패턴 설계를 위한 삼차원 인체 체표면 스캔 데이터 활용에 관한 연구)

  • 천종숙;서동애;이관석
    • The Research Journal of the Costume Culture
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    • v.10 no.6
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    • pp.709-717
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    • 2002
  • In the apparel industry, the technology has been advanced rapidly. The use of 3D scanning systems fur the capture and measurement of human body is becoming common place. Three dimensional digital image can be used for design, inspection, reproduction of physical objects. The purpose of this study is to develop a method that drafts men's basic bodice pattern from scanned 3D body surface shape data. In order to pursue this purpose the researchers developed pattern drafting algorithm. The 3D scanner used in this study was Cyberware Whole Body Scanner WB-4. The bodice pattern drafting algorithm from 3D body surface shape data developed in this study is as follows. First, convert geometric 3D body surface data to 3D polygonal mesh data. Second, develop algorithm to lay out 3D polygonal patches onto a plane using Auto Lisp program. The polygon meshes are coplanar, and the individual mesh is continuously in contact with next one The bodice front surface shape data in polygonal patches form was lined up in bust and waist levels. The back bodice was drafted by lining up the polygonal mesh in scapula, chest, and waist levels. in the drafts, gaps between polygons were formed into the darts.

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A Research of Mock-up evaluation of Permanent Form in site (비탈형 영구거푸집의 시공성능 평가에 관한 연구)

  • 김형남;김우재;김성식;김영희;정상진
    • Proceedings of the Korea Concrete Institute Conference
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    • 1998.10b
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    • pp.906-911
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    • 1998
  • This study is about an application of permanent form to the field. The present problem of this country's building market in the face of 3D, in addition to construction cost increase, materials lack problems and opening a building market to foreign countries, is trying to find out the efficient ways of overcoming these problems. So the efficacy of form work to technical improvement will contribute a practical permanent form in field through scientific test of the design and construction of permanent form. According to the result of these experiments, they seemed to be a permissible error range of Permanent form ± 5mm and steel reinforcing of Permanent form seemed to be ±5mm. a modification of Permanent form is superior to any wooden form.

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A study on the System Process of Production pipeline of 3D animation (3D Animation 제작 파이프라인 연구 - 국내 소규모 3D애니메이션 제작을 중심으로 -)

  • Yang, sung-su
    • Proceedings of the Korea Contents Association Conference
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    • 2008.05a
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    • pp.198-202
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    • 2008
  • Manufacturing process of large-scale 3D computer animation is becoming sophistication, ramification because of development of manufacturing technique and extravagant budget. Form of manufacturing pipeline has been variously changed to production type, manufacturing scale, manufacturing form. But it is time that renewed discussion is needed because change and development for the organization is insufficient in small manufacturing company. The project aims to try to help understanding for manufacturing pipeline of internal small-scale 3D animation and to find a plan of organization for internal small-scale production of the real situation. Organization model and methodology of manufacturing pipeline of small manufacturing company is not absolute because it is enough possible to be changed to inclination of the project and its environment. People must fully understand the purpose for organization of manufacturing pipeline of 3D computer animation and it must be organized to the situation for small-scale production so that every worker in production can share the information perfectly.

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3D epigenomics and 3D epigenopathies

  • Kyung-Hwan Lee;Jungyu Kim;Ji Hun Kim
    • BMB Reports
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    • v.57 no.5
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    • pp.216-231
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    • 2024
  • Mammalian genomes are intricately compacted to form sophisticated 3-dimensional structures within the tiny nucleus, so called 3D genome folding. Despite their shapes reminiscent of an entangled yarn, the rapid development of molecular and next-generation sequencing technologies (NGS) has revealed that mammalian genomes are highly organized in a hierarchical order that delicately affects transcription activities. An increasing amount of evidence suggests that 3D genome folding is implicated in diseases, giving us a clue on how to identify novel therapeutic approaches. In this review, we will study what 3D genome folding means in epigenetics, what types of 3D genome structures there are, how they are formed, and how the technologies have developed to explore them. We will also discuss the pathological implications of 3D genome folding. Finally, we will discuss how to leverage 3D genome folding and engineering for future studies.

A Study on utilizing 3D model to input and display the information of structural inspection (3D 객체 모델을 활용한 점검 정보입력 및 표출에 관한 연구)

  • Jang, Jeong-Hwan;An, Ho-Hyun;Park, Sang Deok;Kang, Dong-Hyun
    • Journal of KIBIM
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    • v.3 no.3
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    • pp.1-8
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    • 2013
  • In general, a two-dimensional platform were used to manage the structural inspection information. But we performed a study on utilizing 3D model to input and display the information of structure inspection. Coarse and Fine model of structure were used to input the information. 3D model combined with database built from record plan and field inspections data and rating will provide more intuitive and effective environment for inspectors in bridge maintenance.

Preliminary Structural Configuration Using 3D Graphic Software (3D 그래픽 S/W이용 초기 구조계획)

  • Kim, Nam-Hee;Koh, Hyung-Moo;Hong, Sung-Gul
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2011.04a
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    • pp.504-507
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    • 2011
  • 3D graphic softwares have brought design spaces beyond the limitations of Euclidean space. Moreover, as computational geometry has been considered together with algorithms, generative algorithms are being evolved. Recently 3D graphic softwares with the embedded generative algorithms allow designers to design free form curves and surfaces in a systematic way. While architectural design has been greatly affected by the advancement of 3D graphic technology, such attention has not given in the realm of structural design. Grasshopper is a platform in Rhino to deal with these Generative Algorithms and Associative modelling techniques. This study has tried to develop a module for preliminary structural configuration using Rhino with Grasshopper. To verify the proposed concept in this study, a module for designing a basic type of suspension structure is introduced.

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A Study on the Pattern Making Theory for Steeve Cap Part of Sleeve Pattern Appropriate for the Characteristics of Arm Form (팔 형태특성에 적합한 소매패턴의 소매산부분 제도이론)

  • Cho, Kyeong-Hee;Machiko, Miyoshi
    • Journal of the Korean Society of Clothing and Textiles
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    • v.32 no.4
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    • pp.641-650
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    • 2008
  • In this study, seven models with distinctly different body types were researched and explanatory variables were reviewed. Review was done by using body measurements and the measurements of the appropriate bodice patterns in 1D, 2D, and 3D measurement methods in order to review the pattern making system and the equations for calculating the dimensions of the sleeve caps, which are readily available. Data on human bodies, which can be the criteria for each body part required for the new system for making sleeve cap part, were selected considering conditions such as items with a significantly high contribution rate from the results of regression analysis and the easiness of measurement. As a result of research, an explanatory variable required for the system for making sleeve caps with high general use was extracted. All items with the exception of the waist circumference and upper arm circumference were about the measurement of the form of human bodies, which were newly set in this study. As a result of this study, the equations for calculating the dimensions of each part of the sleeve caps showed distinct differences in comparison to the conventional system of construction.

Development of an Object-Oriented Initial Hull Structural Design System (객체 지향 초기 선체 구조 설계 시스템 개발)

  • Roh M.-I.;Lee K.-Y.
    • Korean Journal of Computational Design and Engineering
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    • v.10 no.4
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    • pp.244-253
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    • 2005
  • In the initial ship design stage of shipyards, the hull form design, the basic design (compartment modeling and ship calculation), and the hull structural design are being performed by different systems. Thus, the problem on interfaces between these systems occurs. To solve this, we developed the hull form design system 'EzHULL' and the compartment modeling and ship calculation system 'EzCOM-PART' for developing finally an integrated ship design system. And, in this study, we present an object-oriented hull structural design .system 'EzSTRUCT', which is developed recently. A structural design in an initial design stage can be frequently changed, because the design is not firmly determined yet. Therefore, designers perform the simplified structural modeling with bigger structural parts (or objects) such as deck, longitudinal bulkhead, etc. in the initial design stage, and the detailed structural modeling with smaller structural parts such as plate, seam, slot, etc. in the detailed design stage. However, the existing hull structural CAD system used in a shipyard is not efficient in generating a 3D CAD model in the initial design stage, because it has difficulty in handling frequent changes in design. Therefore, designers initially draw 2D drawings in the initial design stage, and generate the 3D CAD model from these 2D drawings in the detailed design and production design stages. In this study, the hull structural design system, which can efficiently generate a 3D CAD model through rapid modeling at an initial design stage, was developed in this study To evaluate the applicability of the developed system, we applied it to hull structural modeling of various ships such as a VLCC, a bulk carrier, etc. As a result, it could efficiently generate a 3D CAD model of a hull structure.