Outline a 3D object

Rhino Rhino for Windows
1

Hi,

Is there a command that outline a close solid polysurface object to a 2D closed curve?

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Thanks

2

Make2D?

3

There is also

contour and meshoutline (however mesh outline is not completely precise )

4

You can DupFaceBorder the top or bottom face ( in this particular case where it is a flat extrusion).

I guess I should note that a more general solution is to run the Silhouette command from the desired view (it is view direction dependent), then use CurveBoolean on the result to get just the outline. The option DeleteInput=All and clicking somewhere outside the entire figure will get you that. Lastly, run SimplifyCrv on the result to clean it up as well as possible.

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