Offset surface edges

[tigerpix]

Hi,

I want to offset a surface edge inside a surface. I have two problems doing that. First, in the corners, it gives me weird edges and second the inner curve offset outward instead of being inside the surface.
I appreciate if you can guide me on how to solve it.

Best,

offset.gh (163.2 KB)

[dowazura]

Offset surface edges_re.gh (160.4 KB)

hope it helps~

[tigerpix]

Thanks a lot, I didn’t expect to have this long process

[emilien]

@dowazura Thanks ! it works very well but is there a way to keep all the curves ?

[dfytz1]

offset_dfytz.gh (156.6 KB)