Waved Roofs

[Anonymous]

I want to build a waved/curved roof: it must work like a mesh because all points must be individually editable, and, at the same time, like a roof because I have to trim walls and slabs to it and the lower surface must follow the upper. Besides it must be solid: two bidimensional meshes with 0,30m elevation difference won't do...
I can't build a profile and extrude it because the roof is also complex in plan. I attach an image for you to see.

Thanks for your help.
[/img]

[Anonymous]

Rodrigo wrote:
I want to build a waved/curved roof: it must work like a mesh because all points must be individually editable, and, at the same time, like a roof because I have to trim walls and slabs to it and the lower surface must follow the upper. Besides it must be solid: two bidimensional meshes with 0,30m elevation difference won't do...
I can't build a profile and extrude it because the roof is also complex in plan. I attach an image for you to see.

Thanks for your help.
[/img]

You don't want to copy the mesh, lower the copy, SEO subtract it from the original to create the profile to the underside? Still remains solid, still SEO trims walls etc.

[Anonymous]

Rodrigo,
I think you can make what you want using a solid mesh.
Please see these two threads.

http://archicad-talk.graphisoft.com/viewtopic.php?p=62004&highlight=mesh+roof#62004

http://archicad-talk.graphisoft.com/viewtopic.php?p=43194&highlight=mesh+roof#43194

Trim the walls using SEO

Peter Devlin

[__archiben]

Rodrigo wrote:
I want to build a waved/curved roof: it must work like a mesh because all points must be individually editable, and, at the same time, like a roof because I have to trim walls and slabs to it and the lower surface must follow the upper.

it's already been pointed out that the double subtraction of meshes and SEO will give you what you want, but if you still really want to use roofs (for automatic skylight placement maybe?) you can use the 'Mesh to Roof' command . . . it's a downloadable add-on: go to your help menu and choose 'Archicad 10 Goodies'. you'll be taken to the goodies webpage . . .

create your mesh, select it, choose 'Create Roofs from Mesh' command. not sure just how great it'll turn out though . . .

~/archiben

[Anonymous]

Hello Ben,
I have tried to use the mesh to roof add-on but find that
often pieces of roof are missing and the thickness of the
rooflets vary with the pitch and often the rooflets don't
fit together correctly.
Have these problems been corrected in the latest version
of the add-on ?
The last time I tried using the add-on was in AC 9.
Peter Devlin

[__archiben]

Peter wrote:
Have these problems been corrected in the latest version of the add-on ?

no idea! the only time i used it was only experimentation. i just thought that rodrigo should know all of the options.

i assume that 'mesh to roof' just tessellates the mesh and calculates the roof from that. not something i would want in my model, but each to their own . . . it may work for some people . . .

~/archiben

[Anonymous]

s2art wrote:

Rodrigo wrote:
I want to build a waved/curved roof: it must work like a mesh because all points must be individually editable, and, at the same time, like a roof because I have to trim walls and slabs to it and the lower surface must follow the upper. Besides it must be solid: two bidimensional meshes with 0,30m elevation difference won't do...
I can't build a profile and extrude it because the roof is also complex in plan. I attach an image for you to see.

Thanks for your help.
[/img]

You don't want to copy the mesh, lower the copy, SEO subtract it from the original to create the profile to the underside? Still remains solid, still SEO trims walls etc.

I have tried that: the upper mesh is the target, the lower mesh is the operator, and I do a subtraction. I have tried with and without lower extrusion, but it doesn't seem to work. The upper mesh doesn't react to it and everything stays the same. I guess I must be doing something wrong...

Rodrigo

[Anonymous]

Rodrigo wrote:
all points must be individually editable

Olá Rodrigo, bem vindo ao ArchiTalk.

I would say that this special need asks for maxonform.
Not having tried it myself, I can not say if it is worth the effort, to learn a new program.
But I know people who have used it and say yes.
The glass cover of this mall was done with maxonform
http://concoursgraphisme.free.fr/gallery/index.php?fpp=10&did=0&fid=13
and it is editable.
The object is so heavy (50mb) it was transformed into a Artlantis object for rendering purposes, and still the radiosity was disabled.