Yarn float light intensity distribution based fabric appearance simulation method
A light intensity distribution and simulation method technology, which is applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of low efficiency of simulation methods
Active Publication Date: 2016-01-13
山东如意毛纺服装集团股份有限公司 +1
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[0005] The purpose of the present invention is to provide a fabric appearance simulation method based on the light intensity distribution of the floating length of the yarn, which can realize the rapid simulation of the fabric appearance and solve the problem of low efficiency of the existing fabric appearance simulation method
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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[0067] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0068] The principle of the method of the invention is: the surface of the fabric is formed by the interlaced arrangement of warp floats and weft floats perpendicular to each other. Above the fabric, only these buoyant lengths can be seen. From the perspective of the axial section, the buckling shape of the buoyant length on the surface of the fabric is sinusoidal (or approximately sinusoidal). By analyzing the light intensity distribution of the floating long line on the surface of the fabric, it is found that the diffuse reflection light intensity of each point decreases with the increase of the distance along the axial or cross-sectional direction, and the attenuation coefficient is the cosine of the incident angle. The corresponding mathematical model for the calculation of the light intensity distribution coefficient of the floating long...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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The invention discloses a yarn float light intensity distribution based fabric appearance simulation method. The method comprises: establishing a yarn surface geometric model; selecting a simple light reflection model, analyzing a light intensity change state of a yarn float in a fabric, and determining a light intensity change coefficient; then determining light intensity of a central point of the yarn float; and finally performing fabric appearance simulation. According to the method, the light intensity distribution state of the surface of the yarn float is analyzed and a corresponding mathematic model is established, so that a relatively accurate light intensity distribution coefficient of each point on the yarn float is obtained; on the basis of ensuring fabric appearance reality effect simulation, the difficulty of a fabric appearance simulation algorithm is greatly lowered and the efficiency of the fabric appearance simulation algorithm is improved; and the fabric appearance simulation effect is improved and the simulation effect of the fabric in a computer is closer to a real fabric effect, so that the sample-making work is replaced as far as possible and physical samples are replaced with simulated samples.
Description
technical field [0001] The invention belongs to the technical field of fabric appearance simulation, and in particular relates to a fabric appearance simulation method based on light intensity distribution of yarn floating lengths. Background technique [0002] Fabric appearance simulation is to use computer graphics technology to quickly, vividly and intuitively display the designer's design intention on the display in the form of fabric simulation. The application of fabric computer simulation technology is of great significance for improving the design efficiency of textile products, reducing product design costs, improving enterprise benefits and rapid response capabilities. However, because the yarns that make up the fabric have the characteristics of flexibility, low linear density and hairiness, the simulation of fabric appearance is a relatively difficult problem, and it is also one of the important problems to be solved by the textile CAD system. [0003] The fabri...
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Inventor 祝双武赵辉石美红
Owner 山东如意毛纺服装集团股份有限公司