Rotating Geometry on Surface

Grasshopper
1

Hey guys,

I was trying to rotate circles from horizontal to vertical in the surface’s respective outward axis, on a lofted surface (please see image). I tried 3D rotation but apparently the axis was not what i wanted. So i am curious what I can do to achieve that ?

1
11418×704 232 KB

What I am ultimately trying to do is Attractor points on this surface.

Thank your for your help in advance
Attractor Points.gh (14.7 KB)

2

where is the rhino file?

3

you can use faces as normals

cir
cir1634×611 135 KB

or this

cir2
cir21532×652 112 KB

Attractor Points.gh (11.9 KB)

2 Likes
4

OMG… I feel so stupid… I went such a long way with closest point on srf and orient when you can just plug normal to normal… :sweat_smile:

My next question is with cutting out the holes on the lofted surface. I tried with Solid difference, but it only did cut a couple, not all the holes, I am wondering what is going on.

random%20list
random%20list1524×655 43.2 KB
Random List.3dm (486.8 KB)
Random%20List
Random%20List1435×713 93.5 KB

Random List.gh (10.0 KB)

Thank you Khaled for the help ~~ very much appreciated. :+1:

5

you can use Surface split

split
split.JPG1512×626 112 KB

split.gh (8.9 KB)

1 Like
6

So the Split surface only cuts the original surface with the circles, then whatever behind is selecting the cut surface ?

7

i don’t understand you ; it’s simple cut a surface with curve

8

Erm, what i meant is the portion with the area, sort, reverse list, list item.

9

area and sort list than reverse to find the big surface and separate it
cull index 0 which is the big surface to separate circles only

1 Like
10

I see. Thanks Again Khaled ! :love_you_gesture:

1 Like