针织毛衫CAD中范本尺寸设定

Size setting on production list model of knitted sweater CAD

针对针织CAD中范本尺寸设定规则进行分析,从"尺寸变化可调点""定点设定""尺寸设定效率"和"调整尺寸"等方面,提出在毛衫范本的尺寸设定时,所采用的特定方式和方法。指出同一方向尺寸设定必须保证有2个尺寸可变调整点,所有交点无论对横向还是直向而言,都必须成为"定点",说明利用"定点设定传递性"将交点转化为"定点"的方法以及定点不可重复设定特性,指出设立某些局部不对称款式,充分利用局部左右下数不对称的设定手法,以提高范本制作效率;分析调整尺寸的作用和曲线部位调整尺寸控制方法。

The article analyzed the special rules used for size setting on production list model of knitted sweater CAD, It puts forward the special ways from aspects including size change adjustable points, setting established point, size setting efficiency and deviation size. It points out that two size change adjustable points in the same direction must be assured when setting size. All points in either vertical or horizontal direction must be turn into established points. Several methods on how to transform the un-established points to established points by transmitting characteristic and non-repetitive characteristic of setting established points are illustrated. It presents that we can improve efficiency by using local left-right asymmetric production list method for local asymmetric styles products of knitted sweaters. The effects and control methods of deviation size in the curve parts of model are analyzed.