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Creating Slab/Roof Slab Body Modifiers
Like interference conditions, body modifiers let you modify the geometry of
a slab or roof slab by incorporating another three-dimensional (3D) object.
However, where interference conditions always subtract from the mass of a
slab or roof slab and affect only components that they touch, body modifiers
can be used to add to, subtract from, or completely replace a specific
component. If a slab or roof slab has only one component, then the body
modifier applies to the entire slab or roof slab.
You can create a body modifier from a mass element, a mass group, or any
other AEC object with mass. You can also create body modifiers from ACIS
solids or blocks that form 3D bodies. You must place the object in the location
you want in the drawing before defining the object as a body modifier.
After you create a body modifier from an object, you can delete the original
object. However, if you have created a complex object, such as a mass group
comprising many mass elements, you may want to retain the object in the
drawing until you are sure you have the results you want for the slab or roof
slab.
NOTE Objects used as interference conditions are not included for the Area in the
LIST command or in a Schedule Query result.
To create a body modifier for a slab or roof slab:
1 Create one or more objects in the location where you want the
body modifier positioned in relation to the slab or roof slab.
2 Select the slab or roof slab you want to modify, and
then…if the object selected is…
click Slab tab ➤ Modify pan-
el ➤ Body Modifier drop-
down ➤ Add .
a slab
click Roof Slab tab ➤ Modify pan-
el ➤ Body Modifier drop-
down ➤ Add .
a roof slab
Using Slab and Roof Slab Contextual Tools | 2445
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