Batch Generate Tins: 3D Solid to Bottom and Top Tins

Hi guys,

I have been dealing with this issue for months and I hope someone can help me.

We need to create tins of the building slab for surveying purposes. This shouldn’t be a problem but the designers are constantly changing it, which results in a massive waste of time updating tins.

The slab attached has 127 polysurfaces. I created a script to extract top and bottom polylines, holes polylines, top and bottom surfaces, and 3dfaces, but I am unable to batch generate the tins.

What do you think it would be the best approach to tackle this issue?

What do you think it would bne
Slab Mesh.dwg (3.0 MB)
Slab Surfaces.dwg (1.2 MB)
Slab 3d faces.dwg (3.3 MB)
Slab Solid.dwg (1.7 MB)
Slab CURVES BY LAYER.dwg (615.1 KB)

Hi @David.K1

Could you explain what the tin of a building is?
Maybe some drawings would also help

Hi Daan,

Thank you for your message.

Tins are the surfaces you generate using the Surface tool in Civil3D.

I have attached a picture. Also, if you open the Slab surfaces model, you will have a good idea of the final product.

I hope that’s clearer now.