From trimmed surface to untrimmed surface

Grasshopper
1

Hi all,
can someone help me to transform a trimmed surface into an untrimmed surface?

2

from trim to untrim.gh (4.5 KB)

this is the case I need to solve!!!

Thanks

3

Unfortunately, you can’t. The trimmed parts are just hidden for you, but they are still there.

4

is not there a way to do it? time ago I did it but now I don’t remember how I did :frowning_face:

5

is not there a way to do it? time ago I did it but now I don’t remember how I did

Not possible, that can never be an untrimmed surface. It has holes.

Capture
Capture1459×408 61.5 KB

6

I understand! So starting from 3 curves, is there a way to create an untrimmed surface?

7

IF there are holes then no. Untrimmed surfaces have 3 or 4 outside edges and no internal edges (holes)

1 Like
8

Why do you need it as untrimmed?

9

I need to create a grid on that surface

10

Create grid on untrimmed surface. Cut the wholes atferwards into the grid.

11

In fact in the rare occasion where trims are short paths (in a way the case with planar stuff and convex 3-4 edge holes) you can approximate the underlying surface as an untrimmed one using short paths, division pts etc etc.

Screen%20Shot%20034
Screen%20Shot%200341529×654 539 KB

But this is a rather rare case anyway.

2 Likes