Virtual sewing is one of the key techniques in the realization of 3D computer aided garment design. After analysis and comparison, this article brings forward a method of virtual sewing based on draping knowledge. Two new concepts are introduced. One is the conversion of garment pattern pieces’ attributes and the other is the "clothes shell"—a middleware to simplify the mapping process. Meanwhile, the method implements the mapping process and completes virtual sewing by setting anchor points and lines on the virtual model. The method has been applied to a simulation system and proved to be successful.
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