Doubly curved brep | plane producing incorrect results

Grasshopper
,
23

And would you just look at that. It fixed all my other problems!

1
11722×498 47.9 KB
24589406d53ee38615422a0e47ab8daa

24

For anyone else out there. If you run to this issue with the Region Difference throwing a “1. Solution exception:Object reference not set to an instance of an object.”

I inserted the “original plane for boolean solution” (obvious) then Graft it and it fixed the issue.

2
21685×498 84.4 KB
1
11702×425 71.6 KB

25

Christopher,

How exactly do you do this? [quote=“christopher.ho, post:4, topic:96584”]
I used the centre of the circle as an attractor point to sort out the direction of the slit before taking the front or back.
[/quote]

26

The intersection between brep | brep is a curve that has no specific orientation.
By taking the end points of that curve and reordering them by distance towards the centre of the circle
image
I can create a straight line where they are all lined up in the same orientation.

27

Perfect! It worked.

Thanks again!

28

Hi @sethdefore,

with Bowerbirds Slice component you can get the same result and it takes only a fraction of the computational time compared to the custom solution:

image
image1107×855 91.5 KB

bowerbird-slice.gh (130.2 KB)

Could you describe your problems with larger models? It might help to improve the plugin.

Best
Thomas