topic Re: Will walls intersect walls in section? in Modeling

Will walls intersect walls in section?

Anonymous — Wed, 24 May 2023 07:10:36 GMT

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

Re: Will walls intersect walls in section?

Anonymous — Fri, 30 Aug 2013 02:14:12 GMT

Why not make the upper wall a complex profile?
Make it as short as you would ever use it, as you can
always stretch it vertically, (but not make it shorter as far as I know.)
Then you could also show the plate(s).
If you want that kind of detail in your section views
they would be there automatically wherever the cut is made.

Re: Will walls intersect walls in section?

Anonymous — Fri, 30 Aug 2013 12:59:18 GMT

the picture is a simplified example the problem I am having.

Often these walls are on different floor and have a floor in between

I make the foundation as a complex profile and have been including the shingle overhang -see picture in that profile. The problem with that is you can control the line weights because it id created with fills that dont have separator line that you can specify

So I would like to eliminate the shingle overhang from the foundation profile and just have the wall above come down to where I need ti to be . . . bit it wont intersect and clean up to another wall in section

Re: Will walls intersect walls in section?

Anonymous — Sat, 31 Aug 2013 12:51:57 GMT

Look at the building material you used for the wood sill plate, then increase its intersection priority. If your wood sill is "22-06 11 | Wood Framing", then change its Intersection Priority to something greater than the strength of the material you want it to override. In this case the upper wall uses a material of "22-06 11 | Wood Frame + Insulation" and it s priority is 550. So you need to increase your wood framing to at least 551. You will still need a patch for the remaining sheetrock or any other materials that are not covered by your wood sill plate. If need be create a copy of the material so that you do not affect other uses that require the lower intersection priority.

However there remains some weirdness I do not understand. If you look very closely you will see that the floor intersection overlap is off by a bit, no explanation in the materials geometry for this. ALso, even when you do get the override to work - there is some odd line weight change at that same irrational location.
Is this line work issue a bug?

Re: Will walls intersect walls in section?

Anonymous — Tue, 03 Sep 2013 16:28:49 GMT

I cant seem to get any wall to wall priorities to work at all

Is that what you have in your screen shot?

Re: Will walls intersect walls in section?

Karl Ottenstein — Tue, 03 Sep 2013 20:26:16 GMT

Is it possible that you have the "Use legacy intersection methods" box checked in Project Preferences > Construction Elements? See:

http://helpcenter.graphisoft.com/guides/archicad-17-int-reference-guide/virtual-building/construction-elements/element-intersections/legacy-intersection-mode-for-older-version-projects/

If checked, the file behaves as in 16 and earlier and you don't have the new connection features.

Re: Will walls intersect walls in section?

Anonymous — Tue, 03 Sep 2013 20:54:07 GMT

No i fixed that legacy thing.

Wall to floors cleans up but not wall to wall (you can see in the screen clip)

Re: Will walls intersect walls in section?

Anonymous — Wed, 04 Sep 2013 21:29:04 GMT

I have the same problem. I gave up and just used SEO.....

Re: Will walls intersect walls in section?

Anonymous — Thu, 10 Oct 2013 13:49:26 GMT

I am having difficulty making intersection priority stick as well. Sometimes it works sometimes it does not. The wall section I generated with carefully assigned building materials and intersection priorities will appear correct for a period of time then revert back to only partially correct.

I have Legacy Intersection methods un-checked.

Re: Will walls intersect walls in section?

Anonymous — Thu, 10 Oct 2013 14:58:14 GMT

Here is a screen shot with intersection priorities labeled showing the two walls and slab.

What am I doing wrong? The priority based connections do not clean up properly though I believe I have priorities assigned correctly.

Re: Will walls intersect walls in section?

James B — Thu, 10 Oct 2013 17:46:51 GMT

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.

Re: Will walls intersect walls in section?

Anonymous — Thu, 10 Oct 2013 18:28:34 GMT

That was it thank you! Missed that one.

Re: Will walls intersect walls in section?

Anonymous — Fri, 01 Nov 2013 13:27:49 GMT

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.

Re: Will walls intersect walls in section?

Anonymous — Fri, 01 Nov 2013 13:32:02 GMT

Here is a screen shot of the same model where the walls and floor clean up correctly

Re: Will walls intersect walls in section?

James B — Fri, 01 Nov 2013 14:48:05 GMT

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)

Re: Will walls intersect walls in section?

Anonymous — Fri, 01 Nov 2013 15:15:25 GMT

The foundation is a complex profile wall, it includes a fill used to create an airspace.

Re: Will walls intersect walls in section?

Anonymous — Fri, 01 Nov 2013 15:22:00 GMT

Here is a screenshot of the walls and floor together

Re: Will walls intersect walls in section?

James B — Fri, 01 Nov 2013 15:22:40 GMT

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.

Re: Will walls intersect walls in section?

Anonymous — Fri, 01 Nov 2013 15:44:57 GMT

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.