# Pipe成圆管问题

**URL:** <https://cn.discourse.mcneel.com/t/pipe/1159>\
**Category:** Rhino for Windows\
**Created:** [2017年六月15日 04:04 UTC](https://cn.discourse.mcneel.com/t/pipe/1159 "2017-06-15T04:04:40Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![NARUTO](https://sea3.discourse-cdn.com/mcneel/user_avatar/cn.discourse.mcneel.com/naruto/32/3133_2.png) [@NARUTO](https://cn.discourse.mcneel.com/u/NARUTO)\
**Post date:** [2017年六月15日 04:04 UTC](https://cn.discourse.mcneel.com/t/pipe/1159/1 "2017-06-15T04:04:40Z")

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大家好  
想问下这根多重曲线，不知道为啥成不了圆管。谢谢

 ![](https://discourse-cdn-aws1.com/mcneel/uploads/mcneel_cn/original/2X/b/be4d9d5c1046b05bc0f3eea7ecdf67fa96e1e506.png)  
[pipe.3dm](https://cn.discourse.mcneel.com/uploads/mcneel_cn/original/2X/b/b7a5d9c015a20231f9716145267c75060df88c9b.3dm) (154.4 KB)

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**Author:** ![KelvinC](https://sea3.discourse-cdn.com/mcneel/user_avatar/cn.discourse.mcneel.com/kelvinc/32/3391_2.png) [@KelvinC](https://cn.discourse.mcneel.com/u/KelvinC)\
**Post date:** [2017年六月15日 12:49 UTC](https://cn.discourse.mcneel.com/t/pipe/1159/2 "2017-06-15T12:49:20Z")

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我想原因之一是，曲線轉角的位置兩個圓管的面相切，相切的曲面交集計算會有問題，曲面無法修剪。

 ![](https://discourse-cdn-aws1.com/mcneel/uploads/mcneel_cn/original/2X/7/7ba6d055c7070f795b13f4678ea877fb934add98.png)

如果你把這條曲線的每個轉角都倒圓角，圓角的半徑要大於 Pipe 的半徑就能做出來。

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**Author:** ![NARUTO](https://sea3.discourse-cdn.com/mcneel/user_avatar/cn.discourse.mcneel.com/naruto/32/3133_2.png) [@NARUTO](https://cn.discourse.mcneel.com/u/NARUTO)\
**Post date:** [2017年六月16日 02:52 UTC](https://cn.discourse.mcneel.com/t/pipe/1159/3 "2017-06-16T02:52:58Z")

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是的，测试了一下倒角的确实可以。谢谢KelvinC