Modeling
About Archicad's design tools, element connections, modeling concepts, etc.

Will walls intersect walls in section?

Anonymous
Not applicable
I cant seem to get wall-to-wall intersection priorities to work in section view like below where I want to have the plywood and shingles come down below the concrete.

In plan wall to wall will only work if the reference lines intersect it seems and I dont know if this effects how they behave in sections

Floors -walls seem to always work without having to line up edges or reference lines at all

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18 REPLIES 18
James B
Graphisoft
Graphisoft
cdeorsay wrote:
What am I doing wrong?
You can also check that the Wall and Slab layers have the same intersection group numbers - if they are different then they will not collide.
James Badcock
Graphisoft Senior Product Manager
Anonymous
Not applicable
That was it thank you! Missed that one.
Anonymous
Not applicable
Thank you James for your help previously. I am still having difficulty. The priority based connections are not cleaning up consistently.

The second floor slab with first and second floor walls clean up nicely (see attached). The first floor slab, first floor wall and foundation show a projection of the floor slab through the higher building material priority of the concrete foundation.(see attached)

I have no overrides selected in my model display options, no cut surface overrides in the wall plan/section display, no overrides in the renovation filter either. The intersection numbers in the layer set are all the same.
Anonymous
Not applicable
Here is a screen shot of the same model where the walls and floor clean up correctly
James B
Graphisoft
Graphisoft
When the intersection occurs, can you select the Complex Profile and show selection in 3D. There are fills I can see in the Profile that don't have edges which is currently not possible.

Also, if the Complex Profile a Wall or Beam? (not that it should make a difference)
James Badcock
Graphisoft Senior Product Manager
Anonymous
Not applicable
The foundation is a complex profile wall, it includes a fill used to create an airspace.
Anonymous
Not applicable
Here is a screenshot of the walls and floor together
James B
Graphisoft
Graphisoft
cdeorsay wrote:
The foundation is a complex profile wall, it includes a fill used to create an airspace.
I still don't quite understand how your model is made up.

Try intersecting a beam through this Complex Profile (in an X intersection), and check the resulting Profile after the collision.

Try with another simple Slab (non-composite) and intersect with the Profile, and check the resulting Profile.

To check the intersection priorities of each of the skins, try selecting both the Profile and the colliding element then open the Building Materials dialogue - it will highlight the selected in the list.

Again, check if the Layers are the same. And check that they both have the same Renovation status.
James Badcock
Graphisoft Senior Product Manager
Anonymous
Not applicable
I double checked my settings and this was my oversight yet again! The complex wall in question was on a different layer with the wrong intersection number, the problem is now corrected. Thank you again for looking at this.