topic Re: barrel- vaulted roof tool confusion in Modeling

barrel- vaulted roof tool confusion

Anonymous — Tue, 23 May 2023 13:31:30 GMT

Is there anyone who can better explain the barrel-vaulted roof tool better that the reference guide. it is so confusing i am totally lost. i have been reading the manual for a while and i justget more confused as i go so i thought i might ask ya'll. thanx

Re: barrel- vaulted roof tool confusion

Anonymous — Tue, 07 Feb 2006 19:38:11 GMT

Never had read the manual for "how to draw roofs in AC?".
But have checked [ArchiCAD 9 Reference Guide > Tools > Construction Elements > Roofs] after your post. I found all clear. Maybe you can describe your difficults with that type of roofs explicitly?

Re: barrel- vaulted roof tool confusion

TomWaltz — Tue, 07 Feb 2006 19:52:46 GMT

What's the problem you are having? Is there a specific step you are not getting correct? Or maybe you could show us a sketch of what you are trying to achieve?

Re: barrel- vaulted roof tool confusion

Anonymous — Tue, 07 Feb 2006 20:04:01 GMT

I am not sure where to start the roof drawing.
Do i start with the peak of the roof or the lowest point?
From there do i then go to the same process as the simple roof tool?
Which way does the curve go when you draw the curve for example to the right?

I need the roof to appear like a large bell over the top of a custom cuppala. Does this help?

Re: barrel- vaulted roof tool confusion

Dwight — Tue, 07 Feb 2006 22:35:46 GMT

For Orthodox churches and other elaborate tower caps, you should not use the roof tool. Rotate a profile to create a suitable form.

Re: barrel- vaulted roof tool confusion

Dwight — Wed, 08 Feb 2006 00:43:45 GMT

In case you were wondering how to make a profile with faces.....

defiine a path in the + + quadrant - upward and to the right from what the origin of the lement will be.

Re: barrel- vaulted roof tool confusion

Dwight — Wed, 08 Feb 2006 00:44:56 GMT

complete the segment by adding two lines

Re: barrel- vaulted roof tool confusion

Dwight — Wed, 08 Feb 2006 00:46:11 GMT

Make a fill using the magic wand set to a reasonable, uniform interval.

Re: barrel- vaulted roof tool confusion

Dwight — Wed, 08 Feb 2006 00:47:37 GMT

Preparing to make the rotate/Revolve/Profile mans making a slightly offset axis line. As small as you can.

Re: barrel- vaulted roof tool confusion

Dwight — Wed, 08 Feb 2006 00:48:33 GMT

The setting for magic wanding the fill

Re: barrel- vaulted roof tool confusion

Dwight — Wed, 08 Feb 2006 00:50:23 GMT

Change the magic wand to control the rotate/revolve/profile segments - in this case, an octagon.

Re: barrel- vaulted roof tool confusion

Dwight — Wed, 08 Feb 2006 00:51:30 GMT

and here's the final product.

Re: barrel- vaulted roof tool confusion

Anonymous — Wed, 08 Feb 2006 03:13:03 GMT

Dwight,
I'm curios about something you did with the setup for using Profiler.
Why did you make the axis line slightly off of vertical rather than
exactly vertical ?
Also, why did you make the dome a solid shape rather than
a shell with some thickness so in section the dome would
have an interior volume of empty space ?
I hope you don't mind me asking.
Peter Devlin

Re: barrel- vaulted roof tool confusion

Dwight — Wed, 08 Feb 2006 03:21:56 GMT

Peter wrote:
Dwight,
I'm curios about something you did with the setup for using Profiler.
Why did you make the axis line slightly off of vertical rather than exactly vertical ?

Peter Devlin

That is an old guy's trick. What you are seeing is a slight (as small as a millimetre) lateral offset for the axis of rotation line - still perfectly vertical - because ArchiCAD can't spin on itself. It is just my practice to do so... it could be obsolete.

Peter wrote:
Also, why did you make the dome a solid shape rather than
a shell with some thickness so in section the dome would
have an interior volume of empty space ?
I hope you don't mind me asking.
Peter Devlin

I am working on the drill press and in the paint shop today so I needed an escape - just did it to show the principle of doing a segmented or faceted shape. Who needs reality? Here in Vancouver, judging by the leaky condos and mildew failures, the architects like to build from full-size foamboard and plasticene.

Re: barrel- vaulted roof tool confusion

Dwight — Wed, 08 Feb 2006 03:28:16 GMT

Just checked it - you don't need the offset any more. Duh.

Re: barrel- vaulted roof tool confusion

Anonymous — Wed, 08 Feb 2006 03:49:58 GMT

Dwight,
Thank you for posting back.
This "old guys" trick reminds me of something that used
to happen with Profiler if you drew a profile that had it's
starting point on the axis and it's last point on the axis.
You would get some error message and Profiler would not work.
This would force you to either tilt the axis slightly or stop
the profile slightly short of the axis line.
Is this the origin of the "old guys trick ?
Peter Devlin

Re: barrel- vaulted roof tool confusion

Dwight — Wed, 08 Feb 2006 04:23:54 GMT

The other old guy trick is that they think things stay the same when they change.

Re: barrel- vaulted roof tool confusion

Anonymous — Wed, 08 Feb 2006 05:42:25 GMT

you can't unteach (is that a word...) an old dog.. erm.. old tricks?

Re: barrel- vaulted roof tool confusion

Dwight — Wed, 08 Feb 2006 05:46:02 GMT

Except through the public humiliation of having him post a wrong answer, with illustrations, even.

Sort of like that dog that fetched the grenade.

Re: barrel- vaulted roof tool confusion

Anonymous — Wed, 08 Feb 2006 05:49:12 GMT

Dwight wrote:
Sort of like that dog that fetched the grenade.

poor pooch... BTW Dwight, go to bed... I know for damn sure that's what I'm about to do.. ahh lovely working on a project , until 1am, that your BOSS neglected to do, and then pawned off on you the day before your client wants a drawing... isn't it ?!?!