Can't divide Trimmed Surface properly

trimed surface problem.gh (9.3 KB)
trimmed surface problem.3dm (48.8 KB)
Hi everyone,
I have a problem with dividing this trimmed surface. I don’t know why when I use dividesurface or lunchbox it goes back to the surface before I trimmed. I’m planning to make quad windows on this trimmed surface. Is there anyone who can help?




Thousand thanks!

After searching other related posts, I know trimmed surface cannot be divide properly.
Then, is there anyone who knows how to create this shape in Grasshopper? >.<
Same file as I uploaded.
Thousand thanks.

See if this works for you:


trimed surface problem_v2.gh (9.3 KB)

Here I use Python to shrink the trimmed surface. There is also a Shrink Trimmed Surface component in Pufferfish.

You are really genius and you can use Python which I cannot understand even a little.
But it is not 100% the same as what I need. My task is to make quad windows for this tower and I must keep the shape as what it is. >.<

1 Like

Sorry, I looked at that far too quickly, and thought it had worked.

It looks like you might have to rebuild the surfaces to remove any reference to the original surface.

Here is one option:

trimed surface problem_v3.gh (12.6 KB)

That’s amazing!!! That’s what I really need and you saved me!!! I should spend more time learning grasshopper! Ten thousand thanks! ^.^

You might want to have a look at this discussion: