The Research On Three-Dimensional Model Of Mold Bra Cup Based On Customer’s Demand

Seen bra designed not only to beautify the breast shape and also comfortable fit, and the fit of both bra cup and space surface morphology is closely related to the definition of the modern bra. The cup easily deformed, the fit is poor, model is not prone to mold bra. In this paper, we studied3D mold bra cup model construction method from the chest three-dimensional morphology to arrive at the beautiful fit bra cup.This article do some researched on bra consumption by consumer demand, explore the reverse engineering the software Bodyworks in human critical point method for determining and data extraction methods. Extraction of163samples of64chest measurement data, after excluding the12abnormal data samples, remaining151samples using SPSS17.0statistical analysis software to do measurement project analysis, factor analysis, to identify the measurement project that is closely related to breast shape, namely:Under the breast circumference and breast aspect ratio (DWR). The breast shape is classified according to the new bra type system, take the highest share of a class for example, using AutoCAD to break down the human chest three-dimensional model through the body-face-line-point, extracted the three-dimensional coordinates of the point, seeking sampling mean of the three-dimensional coordinates of the points as the three-dimensional coordinates of the point value of the intermediate model, and then through the reverse process of decomposition of the human body that is the point-line-surface-body to build intermediate three-dimensional model, and then designed and extracted according to the intermediate cup three-dimensional model. Explore the determination method of breast area and the measurement method of the volume of a breast by using reverse engineering software Bodyworks, with the gypsum method to obtain the plaster model of the breast, filled with plaster model with sand, to measure the volume of sand as the accuracy of the measurement values of true values, test the accuracy of the measured value of the software. Get the size of the value of the various types of the breast volume, and analysis of the relationship between the various types of breast shape and breast volume, using stepwise regression analysis method to obtain the regression model of the breast volume. Put breast volume factors in the structural design of the cup.The study innovation:First, using a three-dimensional breast shape to extract the three-dimensional model of the cup, so as to solve the problem that is difficult to control the two-dimensional design of the cup inside and outside space surface morphology. Make the cup extracted out fit bra type, improve bra fit comfort and shaping, the method can be used in bra custom. Second, using dimensional software to extract the volume of the breast, the derived value of the volume of the various bra type breast, take volume of the breast as one of the factors of the cup design, so that the volume of the brassiere cup and bra type matching, and to improve the fit and comfort of the cup. Third, obtained the plaster model of the breast through experiments, with sand filled with plaster model and measure the volume of the sand, to thereby obtain a volume of the breast.