-
From the Operations section of the action bar,
click
Top and Bottom Faces
.
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In the Top and Bottom Faces panel,
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Under the Design Space References area, select the space
references.
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Under the Floor Surfaces area, select the surfaces.
-
Click Apply.
- The surfaces are set as top and bottom surfaces to the corresponding space
references, and are listed in the Top Surfaces and
Bottom Surfaces columns.
- The top and bottom surfaces are saved as attributes in the space reference and are
used to recognize the top and bottom faces of the space reference.
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