How to make a polygon mesh?

[m.nastic]

I'm trying to import an autocad file into sap2000. The element i need to import has to be a solid. I know that sap2000 accepts elements called polygon mesh (i received a test file, and under properties of the object, that is what is said).

But i have no idea how to make a polygon mesh? what is the function called? I've tried MESH but i don't think its the same thing.

i am attaching the test file so you can see what shape i need.

If anyone know what this polygon mesh is and how to make it, I would really appreciate the help

thanks

[JDMather]

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@m.nastic wrote:

 The element i need to import has to be a solid. I know that sap2000 accepts elements called polygon mesh

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A polygon mesh is not a solid body - it is a surface body(ies).
Didn't this question come up here a couple of months ago?

http://forums.autodesk.com/t5/AutoCAD-2010-2011-2012-DWG/convert-3D-volume-to-a-solid-polygon-mesh/m...

Is this a school assignment?

[m.nastic]

well whatever it is, i need to make a polygon mesh.

how do i make a polygon mesh??????

[m.nastic]

whateve it is, i need to make a polygon mesh. do you know how to do it?

[JDMather]

3dmesh command