curved roof

[gokarch]

Hello folks,

I've been searching the forums and have found several topics regarding this, but I just can't seem to get it to work!!!

I want to make a section of curved glass roof (see picture attached). I've been trying to use nurbs, nurbs curves, 3D reshape etc and, I'm sure due to my lack of knowledge in VW 3D, it's just not workng. ie I cant get the right shape.

I'm assuming it's something to do with extruding a Nurbs curve the shape of the end elevation of it along a path or something???

Can anyone help?!!

Cheers in advance,

Joe

[Ray Libby]

Try drawing the profile from the side and extruding it.

[Vincent C]

Hi Joe!

I'll give it a try....it looks like its a semicircle in section, if so you can create a cylinder with the same height as the patio-width (draw in side view to avoid having to rotate the solid later) and then subtract a second cylinder which has a slightly smaller radius (ie creating the thickness of the glass) then split the remaining volume into the right circle segment and delete the parts you don't need = done, or (if it's not a circle segment) you'll have to create a polygon/shape which has the same shape as the glass section then extrude this (make sure the shape/polygon has a solid fill before extruding if you want the extrude to be a solid).

Good luck

[gokarch]

Honestly, you folks are brilliant!!!

It's always easier when you know how... Its just off an arc, but did a polygon and extruded; worked perfectly!!

Thanks yet again for taking time out to help.

Joe

BTW I ended up using Nurbs curves for the glazing bars... the best option?

Edited May 27, 2009 by gokarch

[panthony]

Curved glass using profile for extrude then multiple copy.

[Jonathan Pickup]

if you are using Vectorworks Architect, the chain extrude tool does a great job of making the glass and supports in one go:

http://web.me.com/jpickup1/Site/podcasts/Entries/2007/8/10_045_-_Chain_Extrudes.html

[Vincent C]

BTW I ended up using Nurbs curves for the glazing bars... the best option?

Well, to tell you the truth i've never used nurbs curves (yet) but i would have done the same procedure as before to create the glazing bars as well.

[mike m oz]

Vincent, if you have used Extrude along Path you have. The Path object becomes a nurbs curve and it is this which allows you to directly edit it with the 3D Reshape tool.

[Vincent C]

Well there you go, i'm not as ignorant as i first thought, always a nice thing to discover .

Thanks Mike