# Rhino curve/surface anatomy

**URL:** <https://discourse.mcneel.com/t/rhino-curve-surface-anatomy/208108>\
**Category:** Rhino\
**Tags:** mac\
**Created:** [August 6, 2025, 9:48pm UTC](https://discourse.mcneel.com/t/rhino-curve-surface-anatomy/208108 "2025-08-06T21:48:54Z")\
**Posts on this page:** 10\
**Page:** 2

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**Author:** ![Alxen](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/alxen/32/695678_2.png) [@Alxen](https://discourse.mcneel.com/u/Alxen)\
**Post date:** [September 11, 2025, 2:13am UTC](https://discourse.mcneel.com/t/rhino-curve-surface-anatomy/208108/25 "2025-09-11T02:13:08Z")

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![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/1/4/8/148f914b3349d131e709ec78f816266c5938ebf6.png)

Hello Gijs, Thank you very much for writing this practical tool, it’s fantastic. If we could add a dot index in the u and v directions, it would be even more perfect. Sometimes we hope to see the sorting index of the dots to provide users with a better experience.

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**Author:** ![Gijs](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/gijs/32/769882_2.png) [@Gijs](https://discourse.mcneel.com/u/Gijs)\
**Post date:** [September 12, 2025, 12:40pm UTC](https://discourse.mcneel.com/t/rhino-curve-surface-anatomy/208108/26 "2025-09-12T12:40:22Z")

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> [@Alxen](#):
>
> If we could add a dot index in the u and v directions, it would be even more perfect. Sometimes we hope to see the sorting index of the dots to provide users with a better experience.

I’m not understanding. Here you’re showing a curve, so there is no v direction. Why would this help? To determine the curve direction, or something else?

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**Author:** ![Lagom](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/lagom/32/767418_2.png) [@Lagom](https://discourse.mcneel.com/u/Lagom)\
**Post date:** [September 12, 2025, 12:56pm UTC](https://discourse.mcneel.com/t/rhino-curve-surface-anatomy/208108/27 "2025-09-12T12:56:55Z")

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> [@Gijs](#):
>
> curve direction

That’s a great idea, Alias indicates curve-U and surface-U/V with a special CV, so you instantly see the direction of a curve or surface. Should be easy to implement.

 ![Untitled-43](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/9/6/a/96a870d50be694d22c66fb6193a33dff5bf5d556.png)

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**Author:** ![norbert\_geelen](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/norbert_geelen/32/476003_2.png) [@norbert\_geelen](https://discourse.mcneel.com/u/norbert_geelen)\
**Post date:** [September 12, 2025, 1:05pm UTC](https://discourse.mcneel.com/t/rhino-curve-surface-anatomy/208108/28 "2025-09-12T13:05:02Z")

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This actually is a clever, minimalist way to show that information.

Would love to see something like that implemented.

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**Author:** ![Rhino\_Bulgaria](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/rhino_bulgaria/32/505284_2.png) [@Rhino\_Bulgaria](https://discourse.mcneel.com/u/Rhino_Bulgaria)\
**Post date:** [September 12, 2025, 1:38pm UTC](https://discourse.mcneel.com/t/rhino-curve-surface-anatomy/208108/29 "2025-09-12T13:38:54Z")

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I would rather have proper circle control points and edge markings for the U and V directions. Some users also prefer to have square control points.

> [@Rhino urgently needs these tools!](https://discourse.mcneel.com/t/rhino-urgently-needs-these-tools/189325/20):
>
> If you take a look at my proposal, it’s about adding just one letter “U” and one letter “V” near the two corresponding surface edges of the surface. Note that this is not a substitute to the existing coloured line markings. It’s a request to add two additional letter markers to the edges of the currently edited surface(s). Check my image below. [[image] ](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/9/c/f/9cf3b1dd787f3288502b3c92b506302476dbdb68.jpeg) This particular image was also posted in another topic much…

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**Author:** ![theoutside](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/theoutside/32/473900_2.png) [@theoutside](https://discourse.mcneel.com/u/theoutside)\
**Post date:** [September 12, 2025, 9:00pm UTC](https://discourse.mcneel.com/t/rhino-curve-surface-anatomy/208108/30 "2025-09-12T21:00:35Z")

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I always liked that- Alias has some really nice UI stuff

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**Author:** ![brian](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/brian/32/504171_2.png) [@brian](https://discourse.mcneel.com/u/brian)\
**Post date:** [January 21, 2026, 7:06pm UTC](https://discourse.mcneel.com/t/rhino-curve-surface-anatomy/208108/31 "2026-01-21T19:06:44Z")

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[RH-91541](https://mcneel.myjetbrains.com/youtrack/issue/RH-91541) is fixed in Rhino [WIP](https://discourse.mcneel.com/t/welcome-to-serengeti/9612)

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**Author:** ![Gijs](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/gijs/32/769882_2.png) [@Gijs](https://discourse.mcneel.com/u/Gijs)\
**Post date:** [January 21, 2026, 8:57pm UTC](https://discourse.mcneel.com/t/rhino-curve-surface-anatomy/208108/32 "2026-01-21T20:57:12Z")

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FYI it was decided that this command needed to be turned back to test command shortly after it was changed to normal command.

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**Author:** ![Lagom](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/lagom/32/767418_2.png) [@Lagom](https://discourse.mcneel.com/u/Lagom)\
**Post date:** [September 2, 2026, 5:15pm UTC](https://discourse.mcneel.com/t/rhino-curve-surface-anatomy/208108/33 "2026-09-02T17:15:16Z")

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Still one of my “life savers”, so useful.

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**Author:** ![Rhino\_Bulgaria](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/rhino_bulgaria/32/505284_2.png) [@Rhino\_Bulgaria](https://discourse.mcneel.com/u/Rhino_Bulgaria)\
**Post date:** [September 3, 2026, 1:15am UTC](https://discourse.mcneel.com/t/rhino-curve-surface-anatomy/208108/34 "2026-09-03T01:15:31Z")

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I added “NoEcho” and “Echo” to remove the extra rows of text from the Command line history.

`NoEcho ConvertToBeziers Pause N Enter None Sellast -group temp enter Intersect None -selgroup temp enter delete Echo`

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