MoI discussion forum
MoI discussion forum

Full Version: Boolean fail

From: Jfs (PAQUICINNO)
15 Dec 2023   [#1]
Hi, i don't undersand why i cannot cut the solid with the surface.
Paquicinno

Attachments:
Boolean diff fail.3dm


From: Michael Gibson
15 Dec 2023   [#2] In reply to [#1]
Hi Paquicinno, it's because your objects are located such an extreme distance away from the 0,0,0 origin point.

Try with the attached version where I have moved the objects closer to 0,0,0 .

Basically it's not good to have objects with large numeric values like x=400000 , it's part of how floating point arithmetic works that there will be less precision on numbers that are large. There is more space between representable numbers as you move far away from the origin so there gets to be more round off errors accumulated on every operation.

So try to keep things more like 1500 units or so and not in the hundreds of thousands.

- Michael

Attachments:
Boolean diff fail2.3dm


From: Jfs (PAQUICINNO)
15 Dec 2023   [#3] In reply to [#2]
OK, didn't saw that, and i didn't know.
thank you.