Walls join problem

[adobris]

For some reason I need to split some walls at point of T intersection of two walls, so at the end I have 3 separate walls that are creating T. Problem occurs when Revit automatically rejoin those wall and split wall is horizontal. 
It works like I want on vertical split walls.

But on horizontal walls, vertical wall splits T walls, and this behavior is unwanted. I would like that it seems that two T walls are one, like Revit is doing with vertical T walls.

My question is how can I control Revit behavior on joining or change it later?

[jeremytammik]

Try using the wall LocationCurve JoinType property:

https://www.revitapidocs.com/2020/00b7a1a8-0e12-d02e-7e25-4716baf6dcdc.htm

[adobris]

Thank you Jeremy,

I tried this before by changing the JoinType on both T walls and it didn't work, maybe I need to change JoinType for the third wall also.
I will probably need to commit my wall splitting changes before I do that. I will try further.

In the meantime I have found a workaround that is visually satisfying, but I still want to solve this properly. Workaround is making one of T walls little longer (0.001 feet) so in reality the join is made only between two angled walls.

[adobris]

I did some additional experiments and I had some success with changing JoinType and only Miter gives acceptable results, but join is different from join that Revit automatically makes on "vertical" walls (looking at the floor plan). Problem with Miter join is that it makes the join line between T walls visible. Actually I need Butt join but in a different order than Revit makes it on "horizontal" walls.
I will document this with some additional pictures.

This is how Revit joins it automatically (Look at sweeps):

This is with JoinType changed to Miter:

This is my workaround:

[adobris · Accepted solution]

After taking some time off from this problem, I decided to give ElementsAtJoin property(in my case method  set_ElementsAtJoin) a second chance, because I did try this before also. Now it worked by just changing order of the elements of this array.

So I can say that this is a path to pursue if someone has a similar problem.

[Anonymous]

Hello @adobris,

could you share your code please?

greetings from germany

[whp.m.owens]

This can also be done with Dynamo and the Zhukoven (spelling?) package.

It might be in some other packages as well...

[adobris]

Sorry @Anonymous 
I missed your message. Here is a part of the code that I've used without complete logic:

            if (wall.Id == w[1].Id)
            {
                array = new ElementArray();

                array.Append(w[1]);
                array.Append(w[0]);
                array.Append(w[2]);
            }

            if (!WallUtils.IsWallJoinAllowedAtEnd(wall, end))
                WallUtils.AllowWallJoinAtEnd(wall, end);

                using (Transaction t = new Transaction(document))
                {
                    t.Start("Change join");

                    try
                    {
                        ((LocationCurve)wall.Location).set_ElementsAtJoin(end, array);
                    }
                    catch (Exception e) { }

                    t.Commit();
                }

[Anonymous]

@adobris Thank you, i will try it later on.

[JulioPolo]

Hello @adobris, could you share how are you finding the T instersections i nthe first place if possible?