If you selected all the method fold points for the Employee class, you should see something like Figure 3.

如果选择employee类的所有方法的折叠点，则应当会看到类似图3所示的内容。

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First, the region of interest (ROI) is selected by interactive segmentation method. The boundary points of the ROI is extracted and ordered according to their positions.

首先通过交互式分割选择出感兴趣区域(R OI)，提取出roi的轮廓点并根据位置关系对轮廓点排序。

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