Why is it combined in 3D but not in 2D?

[LeeJaeYoung]

 

 

 

[ESK · Accepted solution]

This question is properly answered in beginner Graphisoft's Youtube tutorials.
The (blue) references lines have to meet in order for the walls to merge. The walls building materials defines which walls will merge.

I will recommend using a Graphic Override for your plan drawings to achieve the precise appearance.

[LeeJaeYoung]

[LeeJaeYoung]

What you're saying is connect it like this and drop it down into Display order?

[Barry Kelly]

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@LeeJaeYoung wrote:

What you're saying is connect it like this and drop it down into Display order?

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That is what I would do.

This is awkward as the walls do not meet at an exact corner.

The thin wall overlaps a bit and send it backwards in plan.

3D should be good.

Barry.

[LeeJaeYoung]

This phenomenon appears on floor plans viewed from four or more floors above.
The strange thing is that it produces results like this later: ^^

But this doesn't seem to be the answer.
So I gave up and replaced it with the same polyline wall.