topic Re: Folded roof/ sloped wall in Modeling

Folded roof/ sloped wall

Anonymous — Tue, 23 May 2023 13:11:23 GMT

Hi
Can someone please tell me the best way of modelling this form (images attached). I am trying to achieve a clean folded junction from a roof (sloped on 2 planes) to a sloping wall.
The wall is on an 80 degree slope, and the top of it is not horizontal. Both ends of the wall are angled down from roof to ground level. The roof is angled on 2 planes.

The method I have used so far hasn't worked well. The steps I have taken are as follows:

1. I Created the wall on an 80 degree slope
2. I Created the 2 planed roof
3. I Trimmed the wall to the roof (the roof had to be oversized to trim the sloped wall, otherwise it wouldn't trim properly
4. I resized the roof to try to snap to the top edges of the wall. I had trouble doing this, because there was no snap point on the top of the trimmed wall at its lowest end. Messy
5. To angle the walls at boths ends, I modelled a solid at each end of the wall, used solid element operations, and then put them on an invisible SEO layer. This was also messy.

Any suggestions about how to do this in a better way, so that the wall and roof can be snapped to each other, creating a clean fold. Should I be using complex profiles? Is there a way to snap to the top of trimmed walls (not just the highest point of a trimmed wall)?
Cheers

Re: Folded roof/ sloped wall

Thomas Holm — Tue, 29 Apr 2008 23:36:03 GMT

Instead of Trim, the roof-wall junction would probably be easier to clean using SEO (solid element operation) there too. First, make a copy of the roof , raise it exactly it's thickness, and put it on the hidden layer. Then, set the wall height so it goes higher than the (original) roof. SEO subtract with upwards extrusion with the wall as operator and the roof as target. Then unhide the roof copy, and SEO with the roof copy as operator and the wall as target. Then hide the roof copy again.

If you want the roof to overlap instead use a copy of the wall as hidden SEO operator like above.

Your solids look interesting. Was the messiness from creating them? You could have used two sloping walls or roofs as operators instead. Much easier.

Re: Folded roof/ sloped wall

Dwight — Tue, 29 Apr 2008 23:38:59 GMT

If you aren't poking any holes in the roof part, then make the entire section a complex profile, but no architect would make a detail like that.

Always have a lip of some kind so water drips clear of the lower wall - easily added to your complex profile.

If not, the grime accumulating on the roof will wash down and streak the wall in no time.

Re: Folded roof/ sloped wall

Anonymous — Tue, 29 Apr 2008 23:57:50 GMT

How would I use a complex profile in this situation? The shape that I am trying to make isn't just an extrusion of a 2d profile; the roof is sloped on 2 planes, and the wall is not horizontal at the top.
Am I missing something?
Cheers

Re: Folded roof/ sloped wall

Thomas Holm — Wed, 30 Apr 2008 00:01:25 GMT

Olivia wrote:
How would I use a complex profile in this situation? The shape that I am trying to make isn't just an extrusion of a 2d profile; the roof is sloped on 2 planes, and the wall is not horizontal at the top.
Am I missing something?
Cheers

It's not easy to see those shapes from your pictures. Still, I think my suggestions will work.

Re: Folded roof/ sloped wall

Anonymous — Wed, 30 Apr 2008 00:11:40 GMT

Thanks Thomas, it worked 🙂

Re: Folded roof/ sloped wall

Dwight — Wed, 30 Apr 2008 00:15:49 GMT

Can we please see the result?

Re: Folded roof/ sloped wall

Anonymous — Wed, 30 Apr 2008 01:37:36 GMT

sure.

Re: Folded roof/ sloped wall

Thomas Holm — Wed, 30 Apr 2008 11:18:21 GMT

Very nice! Thanks!

Re: Folded roof/ sloped wall

Anonymous — Thu, 01 May 2008 11:26:06 GMT

back again.
The 'subtracted' areas still seem to be showing up in plan view. All works well in 3d and section though. Is there a way to make it work in plan as well?
Thanks

Re: Folded roof/ sloped wall

Anonymous — Thu, 01 May 2008 19:30:25 GMT

Olivia wrote:
back again.
The 'subtracted' areas still seem to be showing up in plan view. All works well in 3d and section though. Is there a way to make it work in plan as well?
Thanks

yes SEO doesn't reflect in plans , thats why i prefer intersecting these ends with slanted walls and hide it ( some times a little extra lines are needed ) but thats all

or you can consider creating 3D cut away ( plan view) and change to internal engine - marquee select - copy ..then back to plan .. paste and start working with lines ... very cumbersome though

those are the ways i know at least

Re: Folded roof/ sloped wall

Anonymous — Thu, 01 May 2008 23:23:43 GMT

oh dear...what a shame...would be good if they could make that one work properly, would be very handy indeed

Re: Folded roof/ sloped wall

Djordje — Sat, 03 May 2008 12:40:59 GMT

That is why you should Trim to roof instead of SEO, and use Complex profile only for the inclined wall - the very steep "roof" that in any case is a wall, is built like a wall, and functions like a wall. In fact, a simple inclined wall would work a treat - no need for Complex profile at all.

Model it as you would build it. Model it so your construction documents are correct, not the pretty picture. That picture does not get your project built. It just helps to persuate the guy with the money to write the cheque. But that is only the beginning.

Re: Folded roof/ sloped wall

Anonymous — Mon, 05 May 2008 00:21:11 GMT

O thankyou wise one

Re: Folded roof/ sloped wall

Thomas Holm — Mon, 05 May 2008 09:17:22 GMT

Olivia wrote:
O thankyou wise one

Re: Folded roof/ sloped wall

Djordje — Tue, 06 May 2008 16:53:34 GMT

Olivia wrote:
O thankyou wise one

Ahem ...

Now you owe me a mocha, whenever we meet 😉

Re: Folded roof/ sloped wall

Thomas Holm — Tue, 06 May 2008 18:05:00 GMT

Djordje wrote:
Now you owe me a mocha, whenever we meet 😉

Well... I sensed just a bit of irony in Olivia's reply... whatever, I think the one who owes you a mocha is me. I'll ring when I get to Dubai!

Re: Folded roof/ sloped wall

Djordje — Sat, 10 May 2008 17:30:33 GMT

Thomas wrote:
Djordje wrote:
Now you owe me a mocha, whenever we meet 😉
Well... I sensed just a bit of irony in Olivia's reply... whatever, I think the one who owes you a mocha is me. I'll ring when I get to Dubai!

So did I!

Sorry if I came across aloof ... and the mocha is always welcome