Help! I want to turn this open surface into a solid! (eventually)

Park Site.3dm (5.1 MB)

I’ve attached the model. It is of the site of my assessment I’m working on. I want to turn the typography into a solid with thickness.

I’ve messed around with a bunch of different ways to turn this once mesh into a surface and I really want to turn it into an object with thickness so that when I import it into Revit, I can model my architecture off the of the site. Rhino has a lot more options when it comes to modeling topography than other programs but I’m still learning the ropes of it.

Thanks so much for any help!
Ted


what is happening here ?
why so many cv’s / knots ?
why are you using a nurbs Surface with Degree u:1, v:1 ?

The surface was once an open mesh and i tried following a bunch of different posts to make it a surface which I intended on making a solid. Here’s a file with the surface as an open mesh. Is there a better way of turning the topography mesh into a solid from here?
Park Site Mesh.3dm (4.9 MB)

Extrude vertically downwards and split horizontally wherever you want

what do you mean by split horizontally?

Hi Ted -

When you extrude, the top and bottom part will have the same topology. To have a flat bottom surface, you’ll need to split the extruded object with a horizontal surface at the depth that you want.
-wim

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Similar approach here:

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Instead of splitting it will be faster to just select those vertices and scale them along the Z axis to 0.

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Thank you! This lead me to my solutions :smiley: