Journal of Textile Research ›› 2020, Vol. 41 ›› Issue (01): 131-138.doi: 10.13475/j.fzxb.20181202708

• Apparel Engineering • Previous Articles     Next Articles

Automatic generation of A-type skirt model based onAutoCAD parametric function

LOU Shaohong()   

  1. Art Institute, Hubei Polytechnic University, Huangshi, Hubei 435003, China
  • Received:2018-12-11 Revised:2019-06-19 Online:2020-01-15 Published:2020-01-14

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Abstract:

In order to better use AutoCAD parametric function for large-scale personalized plate making in the garment industry, a new method of fitting waist line with single arc and swing line with biarc is adopted aiming at problems in parameterizing A-type skirt pattern. Through analysis and comparison of constraint methods, the principle of parametric constraints proposed solved the problems when using AutoCAD parametric functions, such as slow operation, result disorder and system stuck. Using the parameterized function of AutoCAD, A-type skirt patterns can be achieved based on the automatically generated A-type skirt model, which had functions on specification alteration, bottom opening size adjustment, sweep shape change, doubling, and fabric radial selection. The results show parametric model of A-type skirt based on AutoCAD parametric function leads to simple operation and is intuitive, which significantly saves the model-making time, doubles the work efficiency, and meets the requirements for rapid plate-making of personalized clothing customization.

Key words: large-scale personalized plate making for garment, AutoCAD parameter function, parametric model, A-type skirt model, automatic generation

CLC Number: 

  • TS941.2

Fig.1

A-type skirt"

Fig.2

Structure of A-type skirt"

Fig.3

Parametric model of waist line"

Fig.4

Parametric model of swing line"

Tab.1

Parameter setting"

参数名称 表达式或取值
腰围线起翘角β 18°≤β≤45°
后腰围线下落量h下落 0≤h下落≤0.8 cm
前腰围 W+腰围放松量+缩缝量4
后腰围 W+腰围放松量+缩缝量4
前腰围线长LWF 前腰围
裙长 依据款式设计确定
前中线长调整量ΔCF 依据面料经向及特性确定
后中线长调整量ΔCB 依据面料经向及特性确定
侧缝线长调整量Δ侧缝 依据面料经向及特性确定
对称斜线长调整量Δ对称 依据面料经向及特性确定
前中线长LCF 裙长-腰头宽+ΔCF
后中线长LCB LCF-h下落+ΔCB
侧缝线长L侧缝 LCF +Δ侧缝
对称斜线长L对称 LCB+L侧缝2+Δ对称

Tab.2

Algorithm of relevant parameters for waist line"

参数名称 表达式
前腰围直线段长度L直线W h下落tanβ
前腰围线圆弧段弧长L弧F 前腰围- L直线W
前腰围线圆弧段半径RWF 180°×L弧F2πβ
前腰围线圆弧段弦长L弦F 2RWFsinβ
腰围斜线长L斜线W L弦F+h下落sinβ
后腰围线圆弧半径RWB L斜线W2sinβ
后腰围线长LWB πβRWBPO

Fig.5

Parameterization flow chart of A-type skirt model"

Fig.6

Comparison of constraint methods for biarc. (a)Method 1;(b)Method 2"

Fig.7

Comparison of constraint methods for seam edge. (a)Method 1;(b)Method 2"

Fig.8

Dimensional constraint parameters and labeling method for front skirt piece"

Fig.9

Constraint and debug flow chart of A-type skirt"

Fig.10

Dimensional constraints and labeling method of position relation between back skirt piece and front skirt piece"

Fig.11

Automatically generated A-type skirt components. (a) Two piece components; (b) Four piece components"

Fig.12

Adjusting circumference(a) and swing line shape (b) of A-type skirt"

Fig.13

Extension application of A-type skirt parametric model. (a) Pleated flared skirt;(b) Multi-section skirt; (c) Fishtail skirt"

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