This system supported by the general drawing program S-7k is carried out at Apllo DN3000 work-station. By means of space cttrve and curved-surface fitting

the 3D shoe pattern and upper are constructed in the shoe tree model space interactively. Varied vamps can be picked up from shoe pattern library and then be put together on the surface of shoe tree. Based on such a way the shoe style design can be corupleted and the 3D shoe pattern picture can also be generated.