翻译说明： 为了让大家更能理解这个教程，我并不翻译其中一些命令，这样可以让一些初学者 ( 不是很熟悉 Maya Nurbs 建模命令 ) 更快找到这些命令。另：我的英文不好，所以在翻译的时候会有一些不足之处，如果有让你发笑的地方，请你给我提醒，我将更改过来 , 我的 Email: chinacache@163.com.
希望可以和大家一同进步！
Create Tire Pattern
Open your Maya, from top vIEw, create these curves (Fig 1), and move them to 6 of y-axis (go up). Remember...you must use closed curves. And of course... you could create another tire pattern. :)
打开 Maya, 切换到前视窗 , 创建如 (fig 1) 一样的曲线，并将它在 y 轴向上移动 6 个单位 . 记住 : 曲线必须是闭合的 . 另外，你也可以创建你自己喜欢的曲线样式 .
Then from front view, create a NURBS cylinder (radius 5, sections 12, spans 6), rotate it to 90°, name this cylinder master_ tire (Fig 2).
回到前视窗，创建一个 Nurbs 圆柱体 (radius 5,sections 12,spans 6), 旋转 90 度，将其命名为 master_tire (fig 2).
Fig 1
Fig 2
Tire Detail
From side view, select these outer CV's (Fig 3) and scale them smaller (Fig 4). Note : use center pivot axis to scale.
切换到侧视窗中，选择外沿的 CV 点 (fig 3) 将它们拉伸如 (fig 4). 注意 : 使用中心黄点来拉伸 .
Fig 3
Fig 4
Now duplicate this master_ tire and name the new one master_ copy , then hide master_ tire (select Master_tire then hit CTRL-H)
复制一条 master_tire 曲面 , 将其命名为 master_copy, 将 master_tire 隐藏起来 ( 选择 master_tire 曲面按 Ctrl+H 组合键 ).
Go to top view, rescale and adjust your curves to this position (Fig 5) (don't overlap the "master_copy" body), and then Shift-select master_copy and edit nurbs > project curve on surface .
Note : you must do this projection from top view.
Then from persp view you will have these new projection curves (Fig 6)
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