Shared edges prevent volume from displaying


#1

If I create a very simple component containing two cubes where the cubes share a line, the entity info won’t display volume.


#2

Yes. That’s normal and expected. Notice also the component isn’t considered Solid in your first screen shot. It must be solid to be able to get a volume. To be solid every edge must be shared by exactly two faces. No more and no less. There are a few more requirements but that’s the one that applies in this case.


#3

You have just displayed the requirement for a ‘solid’.
Only a solid has a ‘volume’…

A manifold solid must contain just faces and edges.
Every edge must support exactly two faces.
When your two cubes touch and thereby share a common edge, then that edge has four faces !
So it is no longer a manifold solid.
Separating the cubes or overlapping them by a tiny amount avoids the shared edge problem.

So you have sort of answered your own problem…

Don’t make geometry where edges do not have exactly two faces !


#4

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