Sweep to create circular surface

Rhino Rhino for Windows
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1

I am trying to create a non trimmed circular surface by using sweep1.

For some strange reason Rhino creates 4 quarter circular surfaces, while Grasshopper can create one circular surface.

Why? Can I also create a single circular untrimmed surface without GH?

Sweep created in Rhino:

image
image2661×1015 188 KB

Sweep in GH:

sweep circle
sweep circle1988×790 195 KB

sweep_circle.gh (8.5 KB)

2

Hello- I would use Revolve here.

-Pascal

2 Likes
3

Fair enough. I’ll take that as an answer and not ask why its different :wink:

4

Using Rhino 7, 7.25.22326.19001, I swept a line around a circle and the result is one untrimmed surface which has the same isocurves like the one created in Grasshopper.

5

What settings are you using in the Sweep dialog?

I am using 7.24 and always getting a polysurface that explodes to 4 quarter circles:

6

I had the Refit rail option on.

7

Thanks, I will try that!