There’s been a long running request for better indicators of the U and V directions on a surface. In the Rhino WIP we’ve made it so when control points are turned on for surfaces (F10), we draw two arrows near the origin (0,0) control point. These arrows indicate the U and V directions of the surfa…

What i was able to do is this config [image] to get this [image] But we need the same for the “dotted lines” fixed color

Finally. These were requested for so long. I remember asking for these since the Rhino 5 and Rhino 6 times. I hope that the X/Y direction indicators will also show while running any command that’s related to them, such like “Rebuild”, “Rebuild UV”, “Direction”, “Change degree” etc

thanks @Joshua_Kennedy it’s very nice addition please allow a way to change/adjust the length of the indicators arrow. they are very/too long ATM

[image] Rhino_Bulgaria: . I hope that the X/Y direction indicators will also show while running any command that’s related to them, such like “Rebuild”, In that case, please also add a short arrow in the normal direction (W) so we can check if they are reversed.

[image] AlanMattano: And having dots color? I was thinking about this couple days ago thank you for bringing it up!

[image] CADARTZ: I was thinking about this couple days ago Great progress here. This kind of visual indicator opens the door to faster interaction methods—Gumball-style flip handles, small circular icons for U/V/W reversal, and quick visual feedback when flipping. Add auto-detection of incons…

That’s a great development! And please, add a color, or other indication when the weight of a control point doesn’t have a value of ‘1’. After all, the rational part of the NURBS abbreviation is the ability to control the weight. As I am not a fan of adjusting the weight and add more control poin…

Either use a different colour, or render square control points when the weight is not the default value of 1, and round control points if the value is 1. However, that may cause a confusion with the control points of surfaces and arcs of degree 2, because their default point weight is some random v…

@Gerard @Rhino_Bulgaria These appear to request a separate function than the surface direction indicators. Perhaps a topic for a new thread. A visual indicator of where control points have weights other than 1, including revolved surfaces, would be very useful when selecting the degree and number o…

Rhino WIP Feature: Surface Direction Indicators

Serengeti (Rhino WIP)

brian (Brian Gillespie) December 9, 2025, 11:51pm 17

RH-21211 is fixed in Rhino WIP

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Feature request: Appearance adjustments for U and V selected control point indicators Serengeti (Rhino WIP)	14	1072	November 19, 2025
Wish: Tune up MoveUVN Serengeti (Rhino WIP)	37	2008	March 4, 2025
Bug? Surface UV direction showing when selecting control point(s) on srf Rhino windows	8	128	November 7, 2024
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Rhino WIP Feature: Surface Direction Indicators

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