Maya Nurbs 汽车轮胎建模

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From front view, delete bottom extruded objects (Fig 11), we don't need them anymore.
Next, from side view, select all of these objects (Fig 12), then duplicate them. AOE3 STUDIO

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 . 中国教程网

Fig 11



Fig 12
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Then move these duplicated objects to about 1.5 of y axis (Fig 13), and delete bottom extruded objects (Fig 14)

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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

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Select back all of duplicated objects, then put them back to 0 of y axis (Fig 15) 中国教程网

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).

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Fig 15

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The reason I copied and deleted the original object is I don't want to have any trim information anymore (it could slow down our modeling times). 中国教程网

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) edu-cn.com

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