Page 881 - Chief Architect Reference Manual

Editing Truss Envelopes

easily customize a truss but may make it You can check or uncheck No Special
difficult to snap to commonly used locations. Snapping in the Roof Truss Specification
dialog. See “General Panel” on page 892.

Editing Truss Envelopes

A truss envelope is the shape defined by a structural conditions defined by the roof and
truss’s top and bottom chords. When a truss ceiling in its new location. As a result, a Roof
is drawn, the envelope is derived from the Truss’s label can change when the truss is
floor platform, ceiling platform, or roof that moved to a new location.
the truss is drawn in.
Floor/Ceiling Trusses do not update
When a truss is viewed in a 3D view, its when moved to a location with different
envelope can be edited like a closed polyline. structural conditions.
See “Editing Closed-Polyline Based
Objects” on page 231.
Lock Truss Envelope
This function can be used to change a roof
truss end or overhang as well as the overall The Lock Truss Envelope attribute can be
truss shape. Changing the truss envelope used to prevent a Roof Truss envelope
does not change the structure that it is drawn from updating when it is moved or
in, however. replicated. See “Roof Truss Specification
Dialog” on page 892.
In addition, when a Roof Truss i s
moved, its shape updates to conform to the

Truss Details

A Truss Detail is a special CAD
Detail window in which a diagram of
each truss configuration present in the plan is
drawn. To open a plan’s Truss Detail, select
CAD> CAD Detail Management . See
“CAD Details” on page 333.
You can also select a Floor/Ceiling or Roof
Truss and click the Open Truss Detail
edit button. The Truss Detail will open
centered on the selected truss.

881