Floors, Roofs, and Ceilings - Autodesk Revit Architecture 2015 Essentials - page 66

You can also edit previously created sketches by selecting the open-
ing and clicking Edit Boundary from the ribbon. An opening of this
type remains perpendicular to the slope of the floor, roof, or ceiling.
On the other hand, a vertical opening remains perpendicular to the
level on which it was created.

5. Select the Vertical tool from the Opening panel, and sketch a new
opening of the same size and dimensions above the first one. The
result resembles Figure 3.13.

Figure 3.13 Completed openings of the same size and dimensions

The differences are subtle but very important. By creating a section
through both openings, you can see the difference in an opening that remains
perpendicular to the floor compared to one that remains perpendicular to the
level (Figure 3.13).

▶

If you have a number
of openings that are
predictably shaped
(circular, rectilinear,
and so on), highly
repetitive, and
scattered throughout
your project, create
a host- or face-based
opening (with
parameters for options)
as a family component
and load it for use in
your project.

exercise 3.5: Create an Opening
with the Shaft Opening tool
To begin, go to the topic's web page at www.sybex.com/go/revit2015essentials ,
download the files for Chapter 3, and open the file c03-ex-3.5start.rvt .