topic Re: Arched empty doors in Libraries & objects

Arched empty doors

jarkwiat — Mon, 03 Feb 2025 16:55:06 GMT

Hi there,

why does the dashed line of an empty arch opening turn into a solid line when the arc radius is increased ?

Operating system used: Mac Intel-based

Re: Arched empty doors

KB-at-CWA — Tue, 04 Feb 2025 22:06:18 GMT

Hi Jarkwiat,

Are you using an opening or a door?

I'm assuming AC27

Re: Arched empty doors

jarkwiat — Wed, 05 Feb 2025 10:37:26 GMT

hi, i am using a door

Re: Arched empty doors

Barry Kelly — Thu, 06 Feb 2025 01:07:02 GMT

The arch line in plan is not a single curve (don't ask me why not).

If you explode the object. you will see it is a series of short line segments.

I think the line becomes more segmented depending on the curve, and as it will be trying to show the dash at the start and end of the segment, it will appear solid.

Also, if you choose a larger scale, you will probably see the dashes again because the line type is set to scale independently.

Use a shorter dash line style or a dotted one.

Barry.

Re: Arched empty doors

Lingwisyer — Thu, 06 Feb 2025 01:25:32 GMT

Expanding the image, you can see the ends of each line, and on the largre radius you can see that it does correspond to the start and end of a dash. Maybe the arch is drawn as a 3D projection instead of a simple curve?

Re: Arched empty doors

jarkwiat — Thu, 06 Feb 2025 10:38:23 GMT

Hi Lingwister, I simply used the available setting in the door settings palette. The same doors with a full arch display 2D as a solid line and doors with a smaller arch display with a dashed line

Re: Arched empty doors

jarkwiat — Thu, 06 Feb 2025 12:29:29 GMT

Wow !!!! thanks - it works ! Thank you Barry !

Arch opening - line type bug

RobiLMan — Fri, 26 Dec 2025 21:21:28 GMT

Hi, I'm having problems with changing the line type of arch opening in Archicad 29, I even tried it on a fresh projekt on different version and it still didn't work, it seems like it is a bug. All i wanted to do is change the linetype of arc line to the same as the opening linetype...

I think the problems is that the arc is made from many lines and not from 1 curved line.

Any ideas?

Operating system used: Mac Apple Silicon Tahoe 26,1

Re: Arch opening - line type bug

Barry Kelly — Sat, 27 Dec 2025 02:17:15 GMT

@RobiLMan wrote:

I think the problems is that the arc is made from many lines and not from 1 curved line.

Correct.

I have merged your post with one that already discusses this problem.

Barry.

Re: Arched empty doors

cuba — Sat, 27 Dec 2025 16:57:44 GMT

You can also make the opening with the opening tool... in any shape with correct 2d projection

Re: Arched empty doors

Barry Kelly — Sun, 28 Dec 2025 08:53:37 GMT

The arched opening is not the problem.

It is the projection of the arch in plan that is not actually a curve but made up of many small straight lines that is the problem.

Personally I would not show the arch in plan, just make sure there is an elevation of it in the documentation.

Barry.