Purpose

The purpose of this paper is to develop the relationship among the three-dimensional-shaped (3D) knitwear on the flat knitting machine in a three-dimensional (3D) design model and the corresponding knitting in a two-dimensional (2D) pattern.

Design/methodology/approach

To do this, map functions are defined to convert the expression of the 3D-shaped knitwear to the horizontal and the vertical knitting. When the inverse functions of the map functions exist, one type is knitting in the 2D pattern can be determined with the aid of the knitwear expression in the 3D design model, when another type of knitting is in the 2D pattern.

Findings

The simulations indicate that the proposed scheme can implement the conversion from the 3D-shaped knitwear in the 3D design model to the corresponding knitting in the 2D pattern. In addition, the generated knitting by the proposed method can meet the technological requirements, which means that the knitting in the 2D pattern, converted by the proposed scheme, can be implemented in reality and the differences between the real knitwear can also be obtained as same as the map functions.

Practical implications

The generated 2D pattern can facilitate accelerating the design development of the 3D-shaped knitwear. Meanwhile, after accomplishing the 3D design, the relationship between 2D patterns in the two knitting directions is established through map functions.

Originality/value

Map functions proposed in this paper can be used in the 3D design model of the 3D-shaped knitwear so as to obtain the relatively accurate 2D paper appropriate for machine-knitting direction, which omits the process of designer's single 2D pattern after accomplishing the 3D design and saves the developing time.

中文翻译：

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将3D形针织品从3D转换为2D图案算法

目的

本文的目的是在三维（3D）设计模型中开发横机上三维形状（3D）针织物与二维（2D）模式中相应针织物之间的关系。

设计/方法/方法

为此，定义了映射函数，以将3D形针织物的表达形式转换为水平和垂直针织。当映射函数的反函数存在时，当另一种类型的针织处于2D模式时，可以借助3D设计模型中的针织物表达式来确定一种类型的2D模式针织。

发现

仿真表明，提出的方案可以实现从3D设计模型中的3D形针织物到2D图案中的相应针织物的转换。另外，所提出的方法所产生的编织物可以满足技术要求，这意味着通过所提出的方案转换后的二维图案的编织物可以在现实中实现，并且真实编织物之间的差异也可以相同。作为地图功能。

实际影响

生成的2D图案可以促进3D形针织物的设计开发。同时，在完成3D设计之后，通过地图函数建立两个编织方向上的2D图案之间的关系。

创意/价值

本文提出的地图功能可用于3D形针织物的3D设计模型中，从而获得适合机器编织方向的相对准确的2D纸，从而省去了设计师完成3D设计后单一2D图案的过程。并节省了开发时间。