Invert Surface Trim with edge loop

Revit
1

Hi all,

I want to trim the big surface(1) with an edge loop (2,3) that projected onto the surface.

But I got the edge loop surface (3) only, how can I invert the trim?

I want the big surface (1) has a hole.

Thanks.

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2

Maybe not the perfect workaround but you can use the Geometry.Split node and filter out the hole by Surface.Area. You’ll ditch the smaller area surface in this case.

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3

have you looked at the surface difference nodes in Dynamo 2.3?

4

Thanks for the reply.

When I use the Geometry.Split node, only one surface come out and that is the original surface.

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5

My firm haven’t update to Dynamo 2.3:neutral_face:

6

It is working now.

Thanks fro the Geometry.Split.
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