topic Re: Trouble solving spiral curved vault in Modeling

Trouble solving spiral curved vault

Anonymous — Thu, 25 May 2023 15:06:28 GMT

Hi, I'm having this problem to model a curved spiral vault, i've been trying to model it whith the mesh tool but still I can't figure out how to do it properly:

Look at the screen shots

Re: Trouble solving spiral curved vault

Anonymous — Thu, 08 Jul 2010 22:42:59 GMT

this is how it looks like from a lateral view

Re: Trouble solving spiral curved vault

Anonymous — Thu, 08 Jul 2010 22:45:30 GMT

This is how it looks like in a 3d view, the thing here is that the orthogonal lines must become a curved lines just like in the lateral view. Any comments helping me to solve this will must appreciate

Re: Trouble solving spiral curved vault

Dwight — Thu, 08 Jul 2010 23:34:40 GMT

The only smoothly curved lines in a mesh can be at the outer edges.

You'll draw four separate but touching meshes to solve this problem.

Re: Trouble solving spiral curved vault

Dwight — Thu, 08 Jul 2010 23:46:53 GMT

OOOOPS!

I see now that you need straight edges with a curved slope:

Use a complex profile wall to do this - the horizontal scaling feature will allow for varied slopes.

Re: Trouble solving spiral curved vault

Anonymous — Fri, 09 Jul 2010 00:02:48 GMT

I cant even imagine what a 'spiral curved vault' needs to look like in real life! Anyone got a photo?

Surely the two triangles formed by the pink dashed lines in the second image are in the same plane as each other, and could be built with one four sided object?

Re: Trouble solving spiral curved vault

Anonymous — Fri, 09 Jul 2010 00:38:48 GMT

This actually is done by one of my college profesors, his name is Mario Larrondo Shiels, he builds down here in Mexico and this is how it looks like once it's done. Dwight you really are the archicad's guru!!! but can U explain me with more detail the process with the complex profiles please. I'll post a photos of the vault, it's just im having problems attaching it!!!

Re: Trouble solving spiral curved vault

Anonymous — Fri, 09 Jul 2010 00:41:59 GMT

Photo 1

Re: Trouble solving spiral curved vault

Anonymous — Fri, 09 Jul 2010 00:43:04 GMT

other photo

Re: Trouble solving spiral curved vault

Dwight — Fri, 09 Jul 2010 03:45:12 GMT

sort of like this, then?

Re: Trouble solving spiral curved vault

Anonymous — Fri, 09 Jul 2010 03:58:01 GMT

Dwight, actually i've already tryed to solve this kind of puzzle (LOL) with that method and the problem here is that each face of the vault has a diferent arc, with the method u suggest of the mesh i've already solved about 75% of the puzzle... because Im still having a lot of problems with the final part of the vault!!! jajajaja. Ok now its like a contest, the one who solves this puzzle of geometry wins... ermm a candy! Look at the image maybe you can suggest a way to end the vault in the correct way. Dwight??

Re: Trouble solving spiral curved vault

Anonymous — Fri, 09 Jul 2010 04:00:09 GMT

and the floor plan view, the big big problem here is the different position of the squares

Re: Trouble solving spiral curved vault

Anonymous — Sat, 10 Jul 2010 00:44:43 GMT

Wuxos,

I think if you get the schematic layout correct before you start anything else you will get it. Below is how I did it.

Schematic:
Draw up the overall plan view of the main elements, I elected to put the central hole at 45degrees to larger roof. Then draw straight line from A to b', then bend that line in an arc until the arc touches a'.

Polylines:
Use magic wand to make multiple offsets of the larger roof square. Then rotate each one using the center as rotation point, rotate until the corners touch the blue arc (A-b').

Meshes:
Create mesh as usual as if it were a site contour. This will go faster if you select the option "change all" when change the Z heights.
Then copy mesh, change layers, lower mesh2 a little bit, then use SEO to subtract Mesh2 form Mesh1, then hide layer containing mesh2.

Snap
Note: Still not what your prof is building, since he is using fixed size "bricks" his surfaces are warped. Curved in two planes and the degree of warpage increases as you near the top. So this is only an approximation. You could improve my version by increasing the height of the "contours" as you go up to the "chimney".

Re: Trouble solving spiral curved vault

Steve Jepson — Sat, 10 Jul 2010 05:26:15 GMT

?

By null at 2010-07-09

Re: Trouble solving spiral curved vault

Anonymous — Sat, 10 Jul 2010 16:04:01 GMT

You obviously have a solid knowledge of AC. However, ? falls short in the helpful explanation category.
Snap

Re: Trouble solving spiral curved vault

Erika Epstein — Sat, 10 Jul 2010 16:15:42 GMT

He has 4 meshes around the rotated square.

The rotated square in the center is X' high

The 4 meshes around it have the side along the rotated square raised to X; easy to do in the 3D window graphically or in the 2D plan window if you type in the X value.

Re: Trouble solving spiral curved vault

Anonymous — Sat, 10 Jul 2010 16:20:18 GMT

Thanks,
Very simple and effective solution indeed.
Snap

Re: Trouble solving spiral curved vault

Anonymous — Sat, 10 Jul 2010 18:07:35 GMT

Thanks Steve,Snap and Erika.
All great stuff.
lec

Re: Trouble solving spiral curved vault

Steve Jepson — Wed, 14 Jul 2010 21:08:01 GMT

For more information on this kind of construction google

Association of the Twisted Steeples of Europe
(A.C.T.E.)

URL=

Re: Trouble solving spiral curved vault

vistasp — Thu, 15 Jul 2010 05:28:33 GMT

Steve wrote:
... Association of the Twisted Steeples of Europe (A.C.T.E.)

There's actually something by that name???