3Dmed系统中主要提供了医学影像数据I/O、二维操作、医学影像分割、表面绘制、体绘制、虚拟切割、三维测量及医学图像配准等基本功能-3Dmed system mainly provides the medical image data I/O, two-dimensional operation, medical image segmentation, surface rendering, volume rendering, virtual Cutting, three-dimension