Maya Nurbs 汽车轮胎建模

　　from front view, delete bottom extruded objects (fig 11), we don%26#39;t need them anymore.

　　next, from side view,selectall of these objects (fig 12), then duplicate them.

　　回到前视窗 , 将下面的曲面删除掉 (fig 11), 我们不需要它 .

　　切换到侧视窗 , 选择所有的物体 (fig 12), 复制它们 .

　　fig 11

　　fig 12

　　then move these duplicated objects to about 1.5 of y axis (fig 13), and delete bottom extruded objects (fig 14)

　　将复制出来的物体在 y 轴上移动 1.5 的距离 (fig 13), 然后删除掉下面的物体 (fig 14)

　　fig 13

　　fig 14

　　select back all of duplicated objects, then put them back to 0 of y axis (fig 15)

　　选择所有复制出来的物体，将其在 y 轴上移回原位，即回归 0(fig 15).

　　fig 15

　　　the reason i copied and deleted the original object is i don%26#39;t want to have any trim information anymore (it could slow down our modeling times).

　　我复制出新的物体并将原物体删除掉的原因是因为我不想在关于 trim 的历史记录在物体上 ( 这样做可以加速我们的时间 ).

　　next, with new duplicated of object still selected, go to edit duplicate option box , and apply these duplicate settings (fig 16), hit duplicate, then you will have these duplicated rotation objects (fig 17)

　　接下来 , 将所有物体选择，复制它们，复制的属性如 (fig 16), 我们可得到如 (fig 17) 所示的物体 .

　　fig 16

　　fig 17