An Approach to Computer-Aided Design for Making Vamp Pattern of Shoes

• Main Authors: Hao-Jen Chang, 張濠仁
• Other Authors: 黃銘智
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/v7jntq

碩士 === 國立臺北科技大學 === 創新設計研究所 === 93 === The procedure for making shoes is very complicated. The main steps include the pattern–making, leather lasting, and sewing…etc. The correct pattern is important to cut the appropriate vamp plates for making shoes. Traditionally, it is necessary for experienced shoe pattern designers to draw the vamp pattern, owing to man-made shoe pattern is easy to result error. In this paper, an approach to computer-aided design for making vamp pattern of shoes is proposed. By the proposed approach, the shoe pattern designers can quickly flatten the surfaces of vamps to obtain the correct patterns. The approach consists of several parts: (1) the surface model of the shoe last is rebuilt by the 3D scanning data; (2) sketching the outlines of individual vamps on the surface model; (3) generating the triangle-mesh model for the surface of the individual vamp; (4) determining the initial mesh and the direction to flatten the vamp surface; and (5) setting the margin of the vamp for lasting and sewing. The algorithm of surface flatten is developed by adopting the 「Orthogonal Properties of Rotation Matrices」method. Through the algorithm in this paper, the triangle meshes can remain the original neighbor relationship during flattening the surface. The proposed approach has been implemented by a real design case. The result of the case study proves the viability of the proposed approach for practical applications.