I’d love to see a little more functionality for the Curvature Graph. My wishes are- Separate display scales for the U and V directions of a surface (see image1 for reason why - V is visible U is not). Ability to increase the number of graphs without having to increase the iso-curve display. Abil…

You are right about other applications of this functionality. Also other industries might need this as it is essential analysis functionality for freeform surfacing.

Hi Rob - here’s a start https://mcneel.myjetbrains.com/youtrack/issue/RH-36185 Is the display glitch the blank density setting? thanks, -Pascal

Brilliant, thank you Pascal! Yes, when the surface was selected a whole load of the properties went blank and were difficult to get back. It happened a bit randomly though. I’m also having some general display issues with the viewports not updating during interactive commands (like extend surface …

Thank you Pascal, What I miss in the myjetbrains post is the option to have only one single curvature graph on one isocurve, surface edge or xy plane for example. Otherwise we still see graphs like down below which are useless. In the marine industry, we judge the quality of surfaces often in one …

Hi Gerard - thanks - as a workaround in V6, and maybe a better solution since the location is completely up to the user, you can extract an isocurve with History on, so you can display the graph for just that curve. [image] -Pascal

Thanks Pascal, I didn’t knew that _ExtractIsocurve is able to have record history. That brings me to the amazing fact that still contour and section are not having ‘Record History’ possibilities. Can you please explain why it is not developed yet?

Hi Gerard, Good points. That said, it is very easy to set up a contour history, just make a line, duplicate with history on and project with history on, then put original curves on a hidden layer and the result from project on a locked layer and you are good to go. Maybe the reason history isn’t …

[image] Holo: Maybe the reason history isn’t implemented for contour is that it produces multiple results that are not linked to each other, and what should Rhino do if a user tries to delete one of the result curves? Shouldn’t matter. Currently if you use Copy with History on, and then you …

Thanks Jorgen, Your trick is something we do here too with _Intersect of a corrugated U-shaped surface object. I can imagine of several issues with the contour command. However, Orca3D has good functionality with their dynamic sections.

I’ve got a feeling the ‘wish’ pile has got a little low, so here are a couple more to top it up… Could there be a transparency slider for the coloured curvature analysis? This could allow us to easily ‘see through’ the coloured surface and select control points. Could the specular highlights b…

Curvature graph wishes

Serengeti (Rhino BETA)

brian (Brian Gillespie) August 26, 2026, 1:59am 33

RH-58729 is fixed in Rhino BETA

Topic		Replies	Views
Curvature Graph improvements for Surfaces Rhino for Windows	12	3821	December 23, 2020
SUGGESTION: Curvature Graph UX Serengeti (Rhino BETA) windows	10	257	August 26, 2026
Wish - New tools for surface shape analysis Serengeti (Rhino BETA)	4	1519	January 28, 2018
Curvature graph on every control points row Rhino for Windows windows , surfacing	14	566	January 22, 2024
V7-Wish for Curvature graph for surface improvements Serengeti (Rhino BETA)	8	1424	January 25, 2018

Curvature graph wishes

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