topic Re: Another Floor Plan Cut Plane Problem in Modeling

Another Floor Plan Cut Plane Problem

Anonymous — Thu, 25 May 2023 16:12:36 GMT

It may well be user error.

I'm drawing an old masonry fort with lots of vaults, etc. The first image is the model view of the parade side. As you can see there's a large vaulted opening in the front wall.

In the second image (next post) is the plan view - and the wall appears solid despite the fact that it's been cut. I've set the floor plan cut plane to 3', which is definitely below the arch. Why is it still showing solid?

Re: Another Floor Plan Cut Plane Problem

Anonymous — Mon, 10 Dec 2007 23:53:57 GMT

Here is the plan view - and the wall appears solid.

Re: Another Floor Plan Cut Plane Problem

Dwight — Tue, 11 Dec 2007 00:28:35 GMT

How is the arch defined?

Re: Another Floor Plan Cut Plane Problem

Anonymous — Tue, 11 Dec 2007 00:30:06 GMT

What have you used to form the opening? Empty door / window? SEO? Something else? If it's a door or window what are its display options?

Re: Another Floor Plan Cut Plane Problem

Anonymous — Tue, 11 Dec 2007 00:37:48 GMT

Looks to me like the arch is not exactly an "arched opening" in a super-thick wall. If it were, it would probably show up OK on the floor plan with the wall displayed as "symbolic cut." It appears that you're using some sort of curved roof object to make the arch and/or using solid element operations to produce the archway. That's cool and all, but in plan view it would probably produce a result like in your second image.

Though I wouldn't recommend this universally, you could try raising your cut plane to 4' or 5' to see if it shows up....

In any case, if you haven't already done this, I would suggest that you model the wall that the arch is in as being 6' thick (or however deep the arch is) and insert an arched opening (it's a door type) into the super-thick wall.

good luck
Zolli

Re: Another Floor Plan Cut Plane Problem

Dwight — Tue, 11 Dec 2007 00:46:21 GMT

Yes. Some users might not be aware of these parametric window openings

Re: Another Floor Plan Cut Plane Problem

Link — Tue, 11 Dec 2007 03:52:12 GMT

Be sure your model view options are correct too:

Document> Set Model View> Model View Options...> Door Options> Show On Plan.

Cheers,
Link.

Re: Another Floor Plan Cut Plane Problem

Anonymous — Tue, 11 Dec 2007 05:20:17 GMT

Well - I modeled everything using SEO ...

I form the vault (which is 40 feet from front to back) using the roof tool. The front wall is only about a foot thick.

Inside the thick vault I build a super thin shell and use that as the operator in the SEO - I need to post a picture of the whole thing ... I'll work on that - it takes a minute or two to render.

The vault needs to be what it is (I'm pretty sure) because I want to study the drainage systems above it.

I'll work on posting that picture.

Re: Another Floor Plan Cut Plane Problem

Dwight — Tue, 11 Dec 2007 05:26:30 GMT

And of course SEO's don't show, so there's your answer.

I am certain that you can exactly match your vault with a window opening vault.

However, if not, you can achieve a smoother and more controllable vault using the Custom Profile Beam option where you exactly define your vault as a beam shape.

Re: Another Floor Plan Cut Plane Problem

Link — Tue, 11 Dec 2007 05:30:28 GMT

And if that doesn't cut it, you could always leave the SEO there and just insert a short empty opening the same width as the SEO, so it shows up in plan.

Cheers,
Link.

Re: Another Floor Plan Cut Plane Problem

Anonymous — Tue, 11 Dec 2007 13:56:28 GMT

Okay - got the renderings done - it takes a while for it to render so I left it overnight.

I need to give more thought to everyone's comments,but wanted to show you more of the context. Guess I'm worried a bit about the cross vaulting, but I think what's being recommended won't necessarily affect that?

Re: Another Floor Plan Cut Plane Problem

Anonymous — Tue, 11 Dec 2007 13:58:44 GMT

This is a second view - I haven't done the SEO on the second opening of the front wall yet

Re: Another Floor Plan Cut Plane Problem

Anonymous — Tue, 11 Dec 2007 15:00:57 GMT

Link wrote:
And if that doesn't cut it, you could always leave the SEO there and just insert a short empty opening the same width as the SEO, so it shows up in plan.

Cheers,
Link.

That works!

Re: Another Floor Plan Cut Plane Problem

Anonymous — Tue, 11 Dec 2007 15:09:38 GMT

Zolli wrote:
Looks to me like the arch is not exactly an "arched opening" in a super-thick wall. If it were, it would probably show up OK on the floor plan with the wall displayed as "symbolic cut." It appears that you're using some sort of curved roof object to make the arch and/or using solid element operations to produce the archway. That's cool and all, but in plan view it would probably produce a result like in your second image.

Though I wouldn't recommend this universally, you could try raising your cut plane to 4' or 5' to see if it shows up....

In any case, if you haven't already done this, I would suggest that you model the wall that the arch is in as being 6' thick (or however deep the arch is) and insert an arched opening (it's a door type) into the super-thick wall.

good luck
Zolli

Several peeps recommended using the window/door opening and I tried that. It's appealing because it would be easier AND might cut down on the file size. So I tried that.

Unfortunately neither the arched window opening nor the arched door opening allows you to specify the spring point of the arch nor the radius - or if it does, I don't know where to find these. Also, it doesn't show the thickness of the masonry arch - it's really an outline opening.

The first view shows an SEO of the rear wall. You can see that it's a relatively flat arch using 2 courses of brick. Also the side walls of this opening are skewed (it's an opening for shooting a cannon). I do the SEO then add in those side walls as a separate item.

Re: Another Floor Plan Cut Plane Problem

Anonymous — Tue, 11 Dec 2007 15:13:00 GMT

This was a test to see if I could simplify this thing and just use an arched opening - but as you can see the radius and spring point of the arch don't correspond to the real arch. Or I just don't know how to do that.

I sure wish it would work this way because to build this thing to be the way it's supposed to be takes a lot of pieces and parts.

Re: Another Floor Plan Cut Plane Problem

Anonymous — Tue, 11 Dec 2007 15:34:32 GMT

Here's something else I found while exploring everyone's suggestions ...

I was re-examining how I built this and started looking at it in wireframe to see how many pieces are in there. A lot of my motivation is to simplify the file so that it's not so cumbersome to render, etc. Also, I initially built this in AC9 and am transferring it to AC11 - not sure if that has any bearing. But, I'm essentially having to rebuild the whole thing. And while I'm at it, it seems like a good time to clean it up because this is one piece that will get repeated in the overall drawing 45 times.

In looking at it in wireframe, there are these weird little objects that I don't understand. They are a part of the larger side walls.

Anyway, I'm as usual confounded and was hoping that the good folks here could shed some light.

Re: Another Floor Plan Cut Plane Problem

Thomas Holm — Tue, 11 Dec 2007 21:33:19 GMT

mc0m wrote:
Unfortunately neither the arched window opening nor the arched door opening allows you to specify the spring point of the arch nor the radius - or if it does, I don't know where to find these. Also, it doesn't show the thickness of the masonry arch - it's really an outline opening.

True. A real problem sometimes. But if you want to re-use this assembly, you should save a lot of time by making your own custom opening (window/door). The procedure is described in the docs (Help menu) and has been mentioned several times the last week.