topic Door with parallel sides in circular wall in Modeling

Door with parallel sides in circular wall

Anonymous — Thu, 25 May 2023 16:12:03 GMT

I am trying to model a "medieval" tower in Archicad 11. But when I simply add a door to the circular wall, the sides of the door opening are not parallel to each other, but "vanish" towards the wall's center point. So, because the wall is very thick (around 3 metres), the door hole is significantly wider on the outside of the wall than on the inside.

How can I make a "rectangular" door in a circular wall? Thank you.

*Edit: It would be better to speak of a "tunnel" than a door.

Re: Door with parallel sides in circular wall

Dwight — Fri, 29 Feb 2008 20:48:09 GMT

A one step method would be to use a slab block placed behind to SEO the wall.

Re: Door with parallel sides in circular wall

Anonymous — Fri, 29 Feb 2008 21:32:06 GMT

Dwight wrote:
A one step method would be to use a slab block placed behind to SEO the wall.

Thank you, that works well for the 3D view (if I hide the layer with the operator element), but then the wall looks solid in the 2D view -- which makes this method a bit awkward, I think, when the building becomes more complex.

Is there another method?

Because the difficult part will be, when I try to model a spiral staircase inside the circular wall ...

Re: Door with parallel sides in circular wall

Anonymous — Fri, 29 Feb 2008 21:46:45 GMT

The doors and windows still don't like to play properly with curved walls yet. There are still lots of little bugs that occur, mainly the 2d representation is incorrect, or incomplete.

Personally the best way I have found to do what you require is to use an shaped empty window opening, ie 'W rectangular Opening 11' which allows you to specify parallel or radiused sides. Put a door in the same position, turn off the lines at the side (ganging) and it looks more-or-less* correct in 3d and 2d.

A tip for placing the empty window - place pointing inwards toward the inside of the curve otherwise the 2d symbol is incorrect.

*Which brings out another little bug, in that the door may now display a true cut-through showing all the panels regardless of whether its projected, symbolic or otherwise. Trying various combinations of symbolic / projected for the door and window may or may not solve this, so a patch might be necessary.

The 'W Splayed Reveal' empty opening may be useful to you as well, as you can adjust the angle of the four sides to create arrow slits etc.

Re: Door with parallel sides in circular wall

Anonymous — Fri, 29 Feb 2008 22:41:05 GMT

manfredkooistra wrote:
...Because the difficult part will be, when I try to model a spiral staircase inside the circular wall

No, spiral stairs are the easy part!

Using stairmaker - one of the presets is a spiral stair with a newell. Set the construction method to tread only, increase the thickness of a tread to the riser height, which gives a nice stepped underside.

Remember to post a picture when you're finished! I'd love to model an old castle or something in ArchiCAD, but its difficult to get the plans and photos to ensure you get a realistic model.

Re: Door with parallel sides in circular wall

Dwight — Fri, 29 Feb 2008 22:44:53 GMT

Peter wrote:
I'd love to model an old castle or something in ArchiCAD, but its difficult to get the plans and photos to ensure you get a realistic model.

Yeah. Those old dukes and them don't want you knowing about their secret passages.

We did a casino in architecture school and our professor wrote to Caesar's Palace in Las Vegas and asked for example plans. They just laughed.

Re: Door with parallel sides in circular wall

Anonymous — Sat, 01 Mar 2008 08:34:04 GMT

Thank you Peter. Your window tips worked wonderfully for me.

But:

Peter wrote:
manfredkooistra wrote:
...Because the difficult part will be, when I try to model a spiral staircase inside the circular wall
No, spiral stairs are the easy part!

I have not expressed myself well: I don't want the spiral stair in the empty space enclosed by the circular wall, but inside the body of the wall itself.

Here's a quick sketch to illustrate this:

Re: Door with parallel sides in circular wall

Dwight — Sat, 01 Mar 2008 08:37:55 GMT

And you just won't drop a cylindrical SEO down through the wall?

Re: Door with parallel sides in circular wall

Anonymous — Sat, 01 Mar 2008 08:48:07 GMT

Peter wrote:
Remember to post a picture when you're finished! 😄 I'd love to model an old castle or something in ArchiCAD, but its difficult to get the plans and photos to ensure you get a realistic model.

It will be a while until the final image is finished. I'm drawing a comic and want to use a 3D tool to construct the architecture. I have used Blender and now try ArchiCAD, Cinema 4D and Maya, to see what they can and cannot do. This is only my hobby, so I'm going real slow: a few half hours late in the evenings, when my family is asleep. But I'll post what I have, when I have it 🙂

Here's an outside view of an early version of the tower: manfredkooistra.deviantart.com/art/Page-24-47756988

The tower I build is from my imagination and only medieval-like. But there is some good documentation in archeological publications for some castles, usually the ones that are ruins today. Go to a university library and browse the archeological / historical publications. Don't forget the periodicals, they contain most of what you want.

Re: Door with parallel sides in circular wall

Anonymous — Sat, 01 Mar 2008 08:52:01 GMT

Dwight wrote:
And you just won't drop a cylindrical SEO down through the wall?

I guess by now you must have inferred that I am quite very new to ArchiCAD and 3D modelling in general. Thank you, Dwight. I will do that.

If you all ever come to Germany, let me know. I'll bake you a cake!

Re: Door with parallel sides in circular wall

Anonymous — Sat, 01 Mar 2008 14:35:25 GMT

Peter wrote:
'W rectangular Opening 11' which allows you to specify parallel or radiused sides

Peter, I have been overly quick with my reply that your tips worked well for me. I had tried the "W splayed reveal" and it did what you said, and then I went to bed. Today, when I tried to specify parallel sides for the "W rectangular Opening 11", I couldn't find where.

Can you describe, where you specify parallel or radiused sides, or post a screenshot?

Re: Door with parallel sides in circular wall

Anonymous — Sat, 01 Mar 2008 15:14:36 GMT

manfredkooistra wrote:
Today, when I tried to specify parallel sides for the "W rectangular Opening 11", I couldn't find where.
Can you describe, where you specify parallel or radiused sides, or post a screenshot?

I think this is what Peter was talking about (see attached image). Hope it helps.

Cheers.

Adrian Tudoreanu

Re: Door with parallel sides in circular wall

Anonymous — Sat, 01 Mar 2008 16:57:43 GMT

Adrian, thank you for that screenshot. Now I see the problem: I don't have that option in my version of ArchiCAD. Below is a screenshot of what I see when I access the window's settings. How do I access the other options?

Re: Door with parallel sides in circular wall

Anonymous — Sat, 01 Mar 2008 17:40:25 GMT

manfredkooistra wrote:
How do I access the other options?

I don't really know why you experience this. What library version are you using? Is it INT or maybe GER? (I am asking thinking there might be some differences between libraries) Have you updated your library? (Help > Check for Updates) If you haven't, you should, as the first version of AC11's library is known to be buggy.
This is all I can think of right now.

Cheers.

Adrian Tudoreanu

Re: Door with parallel sides in circular wall

Anonymous — Sat, 01 Mar 2008 21:37:43 GMT

Aha, it really is a difference between the different versions. The German version does not have the rectangular opening at all (although it has the splayed reveal), and the US version, though it has both objects, does not offer to set the 3d opening sides. Only the international version has all these options.

Re: Door with parallel sides in circular wall

Anonymous — Sat, 01 Mar 2008 23:00:41 GMT

manfredkooistra wrote:
Aha, it really is a difference between the different versions. The German version does not have the rectangular opening at all (although it has the splayed reveal), and the US version, though it has both objects, does not offer to set the 3d opening sides. Only the international version has all these options.

I see. Maybe someone on this forum can post a link from where you can download the INT library.

Cheers.

Adrian Tudoreanu

Re: Door with parallel sides in circular wall

Djordje — Sun, 02 Mar 2008 03:22:07 GMT

Try the consolidated libraries at archicad.ca

Andy went to great lengths to compose it ...

Re: Door with parallel sides in circular wall

Dwight — Sun, 02 Mar 2008 03:35:30 GMT

The INT library window functions go beyond the library - there is code in the application that addresses the special functions that we all want.

Re: Door with parallel sides in circular wall

Anonymous — Sun, 02 Mar 2008 04:55:52 GMT

Hello Dwight,
I suspected that the international version of the application
was different from the US version. I wonder if, as you say
there is internal code in the INT version of the application that
addresses special functions, there is likewise special code in the
US version of the application that does not exist in the
INT version of the application.

I also wonder if Andy has addressed the issue of differing localized applications.
Andy says that his office is using his new combined library
and says it works fine but if there is an issue with differing application
versions then I don't understand how he can say this.
As far as I know, one can't switch application versions depending on
which library part one wants to insert into a project.

Djordje says try the "consolidated libraries" but they are not available
because Andy can't find the authors of some lib parts he wants
to include to get permission to include them in his library.
So we can't test this issue.

Thanks for your attention Dwight,
Peter Devlin

Re: Door with parallel sides in circular wall

Dwight — Sun, 02 Mar 2008 05:03:15 GMT

After we learned of the special window function in the INT windows, I verified that I would need an INT version to run it.

You can put the INT windows into the USA library - and use the windows - but the chamfer function is inactive.

DANG!