How to create a similar volume

[Владислав_Фандеєв]

Hello everyone, please tell me how to create such a volume on a curved surface. I tried to do something similar, but it overloads Rhino and does not look like the reference (

654.gh (11.2 KB)

[Eef_Weenink]

when uploading a .gh file, please internalise data first. (right click on object. here the Curve) and choose internalise data).

regards, Eef