CAD tip # 6710:

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How to smooth a surface defined by individual 3DFaces?

You can smooth a surface defined by a group of 3D faces (3DFACE objects) but you have to convert it first to a 3D mesh.

If you get a series of 3D faces (terrain generator, import from another 3D software, et.c), you can convert it to a single "3D mesh" object in AutoCAD 2010. Then you can manipulate it, smooth it and interactively edit its 3D shape.

First convert the selected 3D faces to individual surfaces - the CONVTOSURFACE command
Then use the UNION command to join the surfaces together
To retain the shape of the original faces, set the FACETERSMOOTHLEV variable to 0 (or perform this setting through the MESHOPTIONS command)
And finally convert the unified surface to a 3D mesh object with the MESHSMOOTH command

Terrain-Mesh

See also the sample CAD video #74 (shot in the Czech version of AutoCAD 2010)

ACAD2010ADT2010Civil2010

*CAD

28.5.2009 30002×

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this tip shared by ARKANCE experts applies to: AutoCAD 2010 · AutoCAD Architecture 2010 · Civil 3D 2010 ·

See also:
Tip 14889:	Unfolding of general polygonal 3D meshes (mesh unfolder).
Tip 13040:	iLogic - display information about complexity of an Inventor part.
Tip 13038:	How to explode 3D faces (3DFACE) into outline polyline?
Tip 13013:	Converting a 3D mesh to a 3D solid in Fusion 360.
Tip 12237:	UnfoldRS - unfold 3D surfaces to 2D in AutoCAD.

Selected tip: Osnap not working in an non-uniformly scaled block.

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