# 关于SubD选择UV方向CP

**URL:** <https://cn.discourse.mcneel.com/t/topic/2124>\
**Category:** Rhino for Windows\
**Created:** [2022年六月4日 20:57 UTC](https://cn.discourse.mcneel.com/t/topic/2124 "2022-06-04T20:57:13Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![anon667555](https://sea3.discourse-cdn.com/mcneel/user_avatar/cn.discourse.mcneel.com/anon667555/32/3067_2.png) [@anon667555](https://cn.discourse.mcneel.com/u/anon667555)\
**Post date:** [2022年六月4日 20:57 UTC](https://cn.discourse.mcneel.com/t/topic/2124/1 "2022-06-04T20:57:13Z")

</div>

为什么Sub-D不能用指令选择selectUV方向的点？

测试档案：  
[subuv.3dm](https://filedn.com/lEbiFUSMYNTzT9lvX8meXUR/%23aboutRhino/function/subuv.3dm)

---

<div class="post-metadata">

**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:** [2022年六月4日 22:11 UTC](https://cn.discourse.mcneel.com/t/topic/2124/2 "2022-06-04T22:11:24Z")

</div>

SubD 不像曲面一定有 U 和 V 方向，但有 Loop 和 Ring。

相關說明主題:

1. [SelEdgeRing](https://docs.mcneel.com/rhino/7/help/en-us/index.htm#commands/seledgeloop.htm)
2. [SelFaceLoop](https://docs.mcneel.com/rhino/7/help/en-us/index.htm#commands/selfaceloop.htm)
3. [SelEdgeLoop](https://docs.mcneel.com/rhino/7/help/en-us/index.htm#commands/seledgeloop.htm)
4. [用 Ctrl+Shift 選取 SubD 點、線、面](https://docs.mcneel.com/rhino/8/help/en-us/index.htm#popup_actions/select_objects.htm#EdgeLoopSelection)
5. [Make control polygon pickable](https://docs.mcneel.com/rhino/8/help/en-us/index.htm#options/mouse.htm#MakeControlPolygonPickable)

---

<div class="post-metadata">

**Author:** ![anon667555](https://sea3.discourse-cdn.com/mcneel/user_avatar/cn.discourse.mcneel.com/anon667555/32/3067_2.png) [@anon667555](https://cn.discourse.mcneel.com/u/anon667555)\
**Post date:** [2022年六月4日 22:15 UTC](https://cn.discourse.mcneel.com/t/topic/2124/3 "2022-06-04T22:15:44Z")

</div>

明白了。

未来注明：这个会联系到建模时“怎样调整试图到Sub-D 法向方向去看，然后继续建模“的问题。

#gumball