How to get faces of Element exposed in air?

Anonymous — Fri, 30 Mar 2018 00:19:53 GMT

Hi, I need to get a surface of element.

It is easy to get a faces of element.(element -> solid -> faces)

But I want to get a exposed face. It means the face except merged part.

I attach pictures for your understanding.

For example, I need exposed face of selected element.

Exposed faces are like below picture. I fill in walls for faces.

I want to get faces exposed in air like picture.

In my case, I make elements to parts and merge these parts.

From these merged parts, I get a exposed face, like any element.(part -> solid -> faces)

But this method has many problem. So I need another method.

please tell me about your any idea.

thank you.

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