Shima Seiki Manufacturing Limited

Noriyuki Suzuki

Tetsuji Maeiwa

Kazuko Takenaka

Yasuyo Kamikawa

An object of the invention is to provide a simulation method and a simulation apparatus of the image of a twisted yarn capable of forming an image close to the actuality. When the images of twisted threads () are inputted, abstracted models () of the twisted yarns having a constant elliptical cross-section are obtained as shown in (b). A projected image () of the twisted yarns as shown in (c) is obtained when the models shown in (b) are viewed from the right side and one of two abstracted models () located on the left side is concealed. The projected image () of the twisted yarns is formed by copying the images of the twisted yarns () on to parts corresponding to the abstracted models () of respective twisted yarns.

Method and apparatus for simulating image of twisted yarn

An object of the invention is to display an image having the feeling close to that of a knitted fabric actually knitted with a fuzzy knitting yarn. At least part of knitting yarn image data () on a knitting yarn with much fuzz () is divided into certain lengths in a length direction in which the knitting yarn image data () extends, and is divided into a mesh () in an intermediate yarn main frame region and meshes () in fuzz regions on both sides thereof in a width direction. Each of the meshes () is deformed in accordance with a stitch loop () constituting the knitted fabric to form deformed meshes () in the fuzz regions and a deformed mesh () in the yarn main frame region. In this deformation, the ratio of the deformed meshes () in the fuzz regions to the meshes () in the fuzz regions is set smaller than the ratio of the deformed mesh () in the yarn main frame region to the mesh () in the yarn main frame region.

Knit design method and apparatus

An object of the invention is to display an image giving a feeling close to the feeling of a knitted fabric actually knitted with a knitting yarn. Linear knitting yarn image datais divided into a plurality of meshes. The meshis made to match a transformed meshtransformed along the shape of a knitting stitch loop. The knitting yarn image datais subjected to an image drawing processing by a mesh transforming technique to create the image of the knitting stitch loop. A lower sectionand an upper sectionare defined in a portion where the knitting stitch loopsare overlapped, the portion where the knitting stitch loops are overlapped is synthesized as a knitted fabric, and displayed. Fluffiness or the like is also reproduced, and consequently the feeling like that of an actual knitted fabric can be given.

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Wakayama, Japan

Noriyuki Suzuki