Roof Faces 3D View

[Hakman]

Can Someone tell me why these faces dont connect properly according to the roof Slop in the plan?

Attached is the file

[Christiaan]

I'd say it's purely down to the fact that you're having to trace off an imperfect plan. Short of getting the exact dimensions of the actual roof you may need to adjust ridge line positions and valley/hip angles to suit.

That's a devil of a roof you have there.

[Hakman]

I just can't get it to line up,

I've tried adjusting the pitch, rise and run, no luck!

[CipesDesign]

With a roof like that, who needs enemies? I would suggest that you break it down into manageable pieces. If it was me I would begin by determining the structural requirements (i.e.: where does each roof face bear, are these trusses, or stick framed, what are the pitches of the various parts, etc) then draw/model the 'primary' pieces first. After that I would add in all the little over-framed portions, sheds, etc.... Also, I think Christiaan is correct in his assumption that the 'plan' is not perfect. In order to "prove" the roof, I would need to model it...

[Hakman]

CipesDesign,

if you hide the roof faces layer you will see each various parts pitch.

I agree with you guys that the givin plan is not perfect.

[Christiaan]

Have you seen the built roof? If you can it may be worth getting on it and having a look. You may find it was built slightly differently to the roof plan you have. Or perhaps even Google maps, although that's a long shot.

[Hakman]

No this house is not built yet,

I was givin the plan to model the roof and get the proper sq ft so the roofing co. can order the material.

[Christiaan]

Ah I see. In that case I would start completely afresh and make your own design decisions about pitches, angles, etc. if you need to.

[Hakman]

I just tested again the Roof faces on another project I worked on, in the project I originally used the create roof command rather roof faces, it was fine, then I had to ungroup it for other reasons, anyhow, I just took these faces that was generated by the create roof command and duplicated them then changed them to polygons trying to do the roof again as in recreating the faces again, I am facing the same issue.

[Christiaan]

hmm, so why don't you want to use the create roof command and stop there?

[Hakman]

VW can not create this roof, it says it is too complex to build

[Christiaan]

That's either because it can't be built or because Vectorworks is too dumb. I suspect the later.

[CipesDesign]

Actually if one of the wall lines is *slightly* out of true (e.g.: 89.5?) it can casuse this failure. Also, as I said earlier, you may need to break that thing down into a few pieces to model it.

[Hakman]

Even trying piece by piece, it is the same issue, the 1st face is ok the 2nd out of alignment and so on...

I've tried taking the second floor plan as the roof plan to use the create roof, still no luck,

I've checked all the lines they are all good as 90? from line to line. umm,

I am almost given up on this project...

[Hakman]

I've done that, like I said before if you hide the roof layer you will see the pitch for each polygon.

[VincentCuclair]

That roof looks wrong in a couple of places......basically if all pitches are the same then all diagonal lines will be 45?. Sorry missed the pdf below in your file that includes the pitches and wall outlines, however these comments still stand

Still you'll need to make some basic decisions before starting.

(1. Do I want all pitches equal? If so roof tops and/or gutters will end up at different heights.)

2. Do I want Roof tops and Gutters respectively at the same height? If so you will need to calculate all the different roof pitches.

3. Do I want equal eave overhangs? If so you need to have floor plans.......

It looks in some cases as if there are roof faces at a lower level than the main roof....

If you don't have more info than this........good luck!

Edited July 5, 2012 by Vincent C

[VincentCuclair]

I pity the guys that have to build this......and the guy that has to pay for it too :grin:

Your almost there though.......some of the roofs need to be at a lower level me thinks......

If you're going to use it for a basic material take-off I don't think it needs to be much more accurate than this anyway.......you'll need to have a certain margin for error anyway.

Edited July 5, 2012 by Vincent C

[VincentCuclair]

Some more tips and queries........tracing this will never give exact results (especially in VWs) there are still too many question marks......

Edited July 5, 2012 by Vincent C

[Dieter @ DWorks]

It's not that difficult, the pdf just isn't that clear, but it is correct. You can do this with roof faces and the connect command, it's easy to put it together. I do find it a strange roof.

This is what I can make of the roof:

Edited July 5, 2012 by DWorks

[VincentCuclair]

Nice Dieter but you missed this (strange) solution.....

Edited July 5, 2012 by Vincent C

[Dieter @ DWorks]

Nice Dieter but you missed this (strange) solution.....

True, thx Vincent.

I found it so strange, but now it makes sense.

[Hakman]

based on the plan, this is what the house should look like

Edited July 5, 2012 by Hakman

[Hakman]

DWorks,

Did you use the pdf pitch?

how did you get them to connect?

I've tried with the Connect/Combine tool. I've gotten weird results.

[Dieter @ DWorks]

DWorks,

Did you use the pdf pitch?

how did you get them to connect?

I've tried with the Connect/Combine tool. I've gotten weird results.

I used the pdf pitches, and they work. It can be that they aren't exactly correct because I set the units to cm and ? because we work that way. I'll upload the file:

[Hakman]

Dworks,

Did you use the same roof faces I had or did you re-trace the pdf file?