rounded roofs

[Anonymous]

Hello I'm working on a project with straw roof with rounded edges.
The picture is not of the project just to show what I mean.
How could i recreate this type of roof (without the top part) in Archicad??

[Anonymous]

The typical approaches would be to use complex profiles, meshes and/or Objective by Ralph Wessel (if you have it or can afford to buy it).

Profiled walls would be limited to a single profile or else you will have trouble at the junctions.

The mesh tool would work by modeling the roof as if it were terrain then making a copy and dragging it down by the roof's thickness to use as operator to subtract the inside.

[vfrontiers]

I actually tried to simulate this earlier this morning and could not find a way to not have junction problems....

Mesh may be easier.

[Dwight]

Grass Hut 101:

Create a free-flowing [no corners] path at the roof perimeter.
Magic Wand a Complex Profile to form a partial roof at the perimeter.

Create a second smaller free-flowing complex profile to cap the partial roof.

Add SEO element: a tilted column to cut scallops from the upper., smaller roof.

Add SEO element at top of roof to trim odd intersections.

If any bits of the low roof project through the upper roof, use SEO to trim.

Close enough?

[vfrontiers]

Nice!

Rather than CUTTING the top (scallop)... I might suggest the same PROFILED cap... but INTERSECT with a simple slab in the shape of the scallop...

[Dwight]

Wouldn't that get you vertical scallop cuts? I use the tilted column to match the roof slope -- see the original example photo.

[vfrontiers]

Normally, yes, but we can add a custom ANGLE to the edges.. admittedly (now that I think about) probably more difficult than the column idea...

[Dwight]

Thank you for reminding me of that feature. I used it yesterday on a round slab. It would only apply to one side at a time [between nodes], so it would be work to apply it to many circular thingies.

[David Maudlin]

Dwight wrote:
It would only apply to one side at a time [between nodes], so it would be work to apply it to many circular thingies.

At the top of the Slab Edge dialog box is the Apply on: pop up which gives 3 options: Clicked Edge, Selected Polygon, or All Edges. This method may not be the best in this case, but may help someone in a different circumstance.

David