摘要
为真实模拟纬编针织物的结构,通过分析纬编针织物的物理模型,在三维Pierce线圈模型基础上,引入B样条及椭圆描述线圈,从而建立三维几何线圈模型.根据纱线线圈的中心线走向,将线圈分为两个部分:弧段和圈柱,弧段(如针编弧、沉降弧)用椭圆描述,圈柱用三次B样条曲线模拟.最后利用OpenGL结合VC++模拟针织物的结构,并实现光照效果.试验结果表明:采用该模型及实现方法,模拟效果比单独采用三维Pierce模型、B样条模型更加逼真.
A three-dimensional geometrical loop model was built to simulate the weft knitted fabric by analyzing the weft knits physical model.B-spline curve and ellipse were used to describe the loop based on the three-dimensional Pierce＇s loop model.The loop was divided into two parts through the centre line：the arc（such as needle loop or sinker loop） was described by ellipse,and the loop pillar was described by cubic B-spline curve.Knitted fabric＇s simulation and illumination effect was implemented with OpenGL and VC＋＋.The experimental result indicate that the presentation achieved by this model appear more vivid than that by only 3D Pierce＇s loop model or B-spline model.
出处
《东华大学学报（自然科学版）》
CAS
CSCD
北大核心
2011年第2期210-214,共5页
Journal of Donghua University(Natural Science)
