topic 3 Unique Wall Intersection in Modeling

3 Unique Wall Intersection

Anonymous — Wed, 24 May 2023 06:21:31 GMT

I have an intersection of 3 walls and at point 4, I really want the purple to connect. It has higher priority, but it still won't work. Any pointers what I can read up on to tackle such a wall. I have quite a few such walls.

Re: 3 Unique Wall Intersection

Anonymous — Thu, 14 Jun 2018 20:35:25 GMT

I also want the green to connect.

Re: 3 Unique Wall Intersection

insideru — Thu, 14 Jun 2018 22:34:20 GMT

You just need to play with both priorities and wall reference lines. Here it is in action (the dashed lines are the wall reference lines):

Re: 3 Unique Wall Intersection

Anonymous — Fri, 15 Jun 2018 00:22:18 GMT

Can you also do it like this?

I don't want to have 2 walls next to each other (parallel) , if it's really supposed to be 1 wall

Re: 3 Unique Wall Intersection

Lingwisyer — Fri, 15 Jun 2018 01:14:50 GMT

Where are your reference lines?

Re: 3 Unique Wall Intersection

Anonymous — Fri, 15 Jun 2018 13:56:01 GMT

Here are the reference lines

Re: 3 Unique Wall Intersection

Lingwisyer — Mon, 18 Jun 2018 01:28:53 GMT

So the reference line of wall 3 does not intersect with the reference lines of either of the other walls?

Auto-intersections will not occur unless the reference lines intersect, so you will have to change your reference lines to a option that allows for this. Once this is achieved, the skins of your wall should connect/clip each other based on their building material priority. The easiest way would be to change the reference line for wall 1 and wall 3 to the top surface. ~~Depending on your composites, you could also reference to one of the bottom reference lines of wall 3 and one the of the top reference lines of wall 1.~~

Ling.

Re: 3 Unique Wall Intersection

Anonymous — Thu, 21 Jun 2018 12:34:37 GMT

Lingwisyer wrote:
So the reference line of wall 3 does not intersect with the reference lines of either of the other walls?

Auto-intersections will not occur unless the reference lines intersect, so you will have to change your reference lines to a option that allows for this. Once this is achieved, the skins of your wall should connect/clip each other based on their building material priority. The easiest way would be to change the reference line for wall 1 and wall 3 to the top surface. Depending on your composites, you could also reference to one of the bottom reference lines of wall 3 and one the of the top reference lines of wall 1.

Ling.

You said: "The easiest way would be to change the reference line for wall 1 and wall 3 to the top surface". I did that to wall 1 and 3 and this happened.

Re: 3 Unique Wall Intersection

Anonymous — Thu, 21 Jun 2018 12:41:03 GMT

Or this, which has identical outer layer

Re: 3 Unique Wall Intersection

Lingwisyer — Fri, 22 Jun 2018 02:43:46 GMT

I do not get why your internal materials are not joining up now unless you inadvertently inversed the Intersection Priorities...
Material 6 has a lower IS then Material 5. You can just duplicate the material and adjust the new material to have an IS that is just lower than that of the original. Material 3 also needs to have a higher IS than Material 6 otherwise you will get a wedge from Wall 3 protruding into the wall intersection.

If Material 5 and Material 6 on the top edge of the wall are different materials, I'm not sure how you would join them without getting a chamfered corner from Wall 3...

So the BMs would be:
5 > 3 > 6

Ling.

Re: 3 Unique Wall Intersection

David Collins — Fri, 22 Jun 2018 06:51:01 GMT

Just as a point of clarification (and hoping not to derail the discussion too much) Does the Model / Junction Order number in the wall settings menu come into play here at all? I've never been able to get that to behave in a predictable manner.

Re: 3 Unique Wall Intersection

Barry Kelly — Fri, 22 Jun 2018 07:30:59 GMT

David wrote:
Just as a point of clarification (and hoping not to derail the discussion too much) Does the Model / Junction Order number in the wall settings menu come into play here at all? I've never been able to get that to behave in a predictable manner.

Possibly, but my understanding is that this only has an effect if all 3 (or more?) reference lines end at exactly the same point.
Then those walls with the higher junction orders trim first.

Barry.

Re: 3 Unique Wall Intersection

Barry Kelly — Fri, 22 Jun 2018 07:44:48 GMT

Barry wrote:
Possibly, but my understanding is that this only has an effect if all 3 (or more?) reference lines end at exactly the same point.
Then those walls with the higher junction orders trim first.

Actually it does affect just 2 walls as well - but they will always trim each other anyway.
Now in 22 the plan trims based on the building material strength rather than just mitring the corner as it did in 21 and before.
So now if you have 2 walls and the building material strengths are the same, you can determine which wall will cut which.
We could never see the difference before with just a mitre.

Barry.

Re: 3 Unique Wall Intersection

Lingwisyer — Fri, 22 Jun 2018 08:30:02 GMT

I find that Junction Order is only relevant between objects/parts that have the same Intersection Priority and only becomes noticeable when you have different finishes and/or have a junction consisting of more than 2 entities and/or when you have End Surfaces toggled off.

Ling.

Re: 3 Unique Wall Intersection

Anonymous — Sun, 22 Jul 2018 21:41:22 GMT

Ok, great; thanks, I've gotten closer. They now intersect, but somehow there's a triangle in there, which I'm not sure why it's there.

The blue material has the lowest priority of them all.