三维纬编提花织物的计算机仿真及系统实现

Computer simulation and system realization of 3-D weft knitted jacquard fabric

针对三维纬编提花织物在仿真速度及真实感模拟等方面的不足,提出从曲面模型入手建立基于Unity3D平台的织物计算机仿真系统。通过三维织物的曲面数据采集和坐标数据统一,实现三维模型、纹理数据的建立和导入,针对复杂提花织物提出一种三因素模拟算法控制织物模型凹凸效果。确定下陷深度、迭代次数和影响范围3个参数,最大限度地与实际织物真实数据进行拟合。在此基础上结合三维引擎Unity3D实现三维模型数据与二维空间数据整合和三维虚拟展示。与线圈仿真相比较,该系统以织物真实数据为基础,可较好地实现具有三维效果的纬编提花织物的预测与仿真,且效率较高。

Aiming at solving the shortage of weft knitted jacquard fabric in 3-D simulation speed and realistic simulation aspects,a computer simulation system of 3-D weft knitted jacquard fabric is established based on the 3-D virtual fabric Unity3 D platform with curved surface model.Firstly,the estalishment and import of 3-D model and texture data were realized by data acquisition and union for the curved fabric surface.Secondly,a three factors simulation algorithm for complex jacquard fabric was put forward to control the effect of the fabric model.Three factors including subsidence depth,number of iterations and sphere of influence were determined to maximize fitting with the real data of actual fabric.Based on this and combined 3-D engine Unity3 D platform,the integration of 3-D model data with 2-D spatial data and 3-D virtual simulation was realized.In comparison with the simulation of the loop model,this experiment based on the real data of fabric and could be proved to be more effective for the prediction and simulation of 3-D weft knitted jacquard fabric.