Is there a boolean split for surfaces?

[CalypsoArt]

Wondering if there is a boolean split for surfaces?

[theoutside (Kyle Houchens)]

that would just be split, no?

[CalypsoArt]

Perhaps I’m being stupid. But I was imagining that these two rectangles would split into three pieces based on the overlap.

[Tom_P]

check out some of the aspects already mentioned in this topic:

Bug: Boolean Difference creates weird Boolean Union instead

more inconsistency with booleans: nr 1 does the trick, but it leaves the rest marked grey behind. both surfaces are open so why would it not work like in case nr 2 where two closed polysurfaces interact? CurveBoolean just works without complaining, though the process is a bit more involving due to having to select which parts, which in this case is usually an advantage but one could argue if the result shown below is wished that it should not also just work like a boolean difference. [Bildsc…

there is also
PlanarUnion
PlanarDifference
PlanarIntersection

[theoutside (Kyle Houchens)]

ok, I see… thanks for the clarification.

for that, no… boolean split would most likely not work, but… you can use the crv switch for split and pick the edges of the surface as input and get a result. /

you would however, need to do it twice, in order to get the result you are looking for.

if you are not aware, you can run split, then type crv +enter to throw the curve switch… this allows you to pick surface edges as curves… work for trim too and is super useful.

[scottd (Scott Davidson)]

I use curveboolean in this case. Pick the two, then click inside each outline area. If the option is not set to combine you will get 3 outlines.

[tay.othman (tay.0)]

_Split
Select cutting objects: select the 8 edges of the surfaces
Select objects to split : pick the the two surfaces

[Helvetosaur]

I was curious to see if my script would work in this case - it does actually. As it splits all objects(curves/surfaces) mutually, it will leave two center rectangular surfaces - the result of each overlapping surface being split by the other.

If you shrink all the surfaces to edge after, the duplicate surface will select with SelDup.

SplitAllSelected.py (4.2 KB)

[CalypsoArt]

Thanks all. I learned some things. And Helvetosaur’s script is great for what I want.