3D garment surface design using sketch-based modelling method

This paper focuses on 3D garment surface generation, modelling and design-reuse method in GCAD system. Firstly, the garment mesh is generated by piecewise technique, and a method is presented to enhance the mesh quality by using alternative cutting plane normal in getting the slice data. Secondly the garment sketch can be extracted from the boundaries of the garment sub-meshes. By making the loops below bust convex in horizontal and vertical direction, the garment surface and sketch can be quickly adjusted into the initial status of loose garment design. Thirdly, a constraint solution including constraint definition, classification and solving rules is given for enhancing the stability and friendliness during editing the garment sketch. The garment surface patches can be deformed as bilinear Coons surface model after the garment sketch updated there boundaries. Finally, an encoding/ decoding method based on the garment sketch is presented for garment surface design-reuse. Encoding the garment sketch curves, the design information can be saved as a template, and when decoding this template on a new body, it automates the garment surface generation for made-to-measure apparel products