Use the mesh (terrain) tool instead. Unless you need it to have a composite structure - then I would try a combination of a slab and mesh, for instance if you have a concrete slab with sloped roof insulation over it.
I want add more point in top of slab then move to change elevation. But I do not see this feature in Slab tool
Slabs can not have a sloping top surface.
That is why David said to use the mesh tool, where you can control the elevation on the points in the top surface.
For a constant slope, you could also use roofs, but they can't have a flat base.
Barry.
One of the forum moderators. Versions 6.5 to 27 i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10 Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11
Mesh is the simplest tool you can you use for this but if you really want to use slab you can do Solid Element Operations...
Basically use the slab thickness that is 850 then from there you can use roof (it will be place in a hidden layer) as your operator meaning you will adjust the angles and height for each point.
Then you use the SEO (Solid Element Operations) with upwards subtraction, then hide the layer of the roof, but if you are going to modify or got changes make sure you adjust also the roof that is hidden.
In the end what is your Objective? ArchiCAD 9 onwards
I just did a short video for you but this website doesn't allow me to upload more than 75mb so I just export a draft video for you to see.
And just also because of the different levels you cannot use roof cause the termination won't be good so you can use morph for that. Hope this helps in deciding what you want to use. 😎
In the end what is your Objective? ArchiCAD 9 onwards
