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*Complex *roof tuto. (with multiple Gables/Hips&Dormers and at different plate H.?


archkre
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Solids modelling, rather than faces makes this task a little easier. I did this one with solids, (see images below)it has one at a different plate height, but multiple slopes, at different intersecting angles, and it was not too hard. But looking for a tutorial, not sure about that.

 

I just build them, and then move them up or down in their "Z" height to where they need to be. I usually will make the main roof, or the largest piece first, then the smaller ones, making them extend beyond where they need to, and subtract the main roof from the secondary ones. It gives clean breaks, and good intersections. Hope it helps, at least a little.

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Hey archre,

 

To roof model, anyway you choose.... You need to find the common (most common) roof at the 10' plate hieght. (floor plan view would help) This will be the width of the structure spaning from the entry to the back wall, not of the additional room/s at 13' plate hieght. This will have a hip on the front (entry side) and a gable on the back. This roof slab will cut through the 13' clieling space.

 

All of the other roofs will intersect (slice), extend from or be built on that common roof. Hope I not being too basic, because it's really not that hard even with roof slabs in ADT. The roof faces that intersect give you three pionts on the roof plane that you can use the roof slab slice command on to elimate uneeded goemetry.

 

The hardest part, if the 10' and 11' 4" plate hieghts don't jive with the 5/12 common pitch lining up the common roof slope with the 13' hieght wall intersecting and built on roof...... you will need to vary the "HAP" hieght above the plate for the roofs.

 

 

I have Adt open and I'll take a crack at it, do you have a floor plan?

 

 

WDA

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But *no *a *complete *tutorial *over *there *after* having *spent *thousands *of **bucks** in ADT 2005?

Not that I've seen, at least covering complex single family residential roof layouts. Kind of makes one think that the AutoDesk certified training is worth $1200 for 3-4 days to cover all of this? I was furtunate to have a surplus of $$$ to take the training for ADT & Viz when I first moved to CAD/Viz for work. I think it can be advantages, but either way it's part of the marketing strategy- generally giving resellers another avenue to more income ensuring they stay a resellers/partners (software alone don't alwyas cut it), IMHO. It's a high quality "Firm" oriented approach and costs $$$$ to the consumer.

 

 

I'm starting on the back roofs. I'll see if I can whip something out to help you along. Have not messed with with roofs since upgrading to 2005, it's good practice!!!

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2005 is much better than 3.3's roofs!

 

A quick summary tut.

 

Used "ROOFS" to get the basic 'roofs'. Drew a rectangle/s for the wall outline, for both actual and "projected" (implied by the roof)

 

Roofs command- 5/12 pitch and set the proper wall height and selected the four corners of the poly hit enter. For the gable at the first vertex (of gable) right click and select gable, second vertex repaet and select overhang.

 

After 'Massing' all of the roofs and adjusting the 'built' on roofs. Convert roof to slabs. Using the cut function right click with slab to be cut selected, following the command prompts select the roof that intersects. If it works the slab is cut into two pieces- one inside and one outside the "cutting" roof. Delete the inside slab.

 

The other "cut" function uses a polyine to cut. This works for the verticle cut at the back room roof slab which returns to a wall.

 

The other command used was the "Hole" for the entry wall pushing through what I would call the common roof. The polyline was created after cutting the entry dormer roof. Followed the inside cut lines to make the poly. Then selected the common roof slab>hole>add selected the polyline and a hole appeared.

 

The best I can right now, attached the file. Includes the original-roofs in place-most of the slabs cut and "holed". Some of the geometry is off a bit, wasn't real careful about perfection. It does count though when cutting in many cases.

 

Are you looking for a tutorial that explains how the different roof and slab work using examples? or One that explains how to do very complex roof modeling- ie you have a good understanding of how the roof / slab tools work?

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Thanx a lot, William!!

What do you mean by 'Massing' :turning the roof onto a AEC mass element?

No, massing for lack of a better term is stacking multiple roofs with partial coplaner roof faces. The back right roof/s over the 11'4" clg room was created this way. basically I needed 3 roof "slabs" to get the built on roof to project over and up the slope. The common roof foot print was not wide enough to give the needed height / projection. Threes roofs created to get 3 slabs that can be booleaned into a very irregular shape.

Watch out for "ghosting" of the booleens- the slabs used in the 'union' do not dissapear. The Union object also does not seem to act as "one", the slabs can be moved individually. Not totatly sure why, just set the originals to a new layer and turn it off.

This "massing" could be done by creating slabs, I guess. But using roofs takes the strictly pitch related punting out and uses the foot print of the hips making more geometric relationships rather than trigonmetric.

 

Glad I could help you out!

WDA

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