User Manual - Page 3055

For AUTOCAD 2011.

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Creating Interference Conditions for Spaces
Use this procedure to place objects such as mass elements in a space in order
to create custom openings or cutouts. For example, a column grid structure
might have columns within the space. Once defined as interference conditions,
the columns cut out an area at the floor and ceiling of the space.
NOTE This procedure is valid for associative and non-associative spaces.
Any AEC object that has a 3D geometry can be used as an interference
condition, as can AutoCAD polylines.
NOTE Interference conditions are deducted from the base volume of a space. You
can add the automatic property Base Area Minus Interference to schedule the
value of the area with without the interference condition.
When another object, such as a ceiling grid, is attached to a space object, it
recognizes the interference condition. For example, if you add a column to
the space as an interference condition, as long as the ceiling grid is anchored
to the space object, the ceiling grid is cut. If you move the column, the ceiling
grid is updated with the new column location.
Adding an interference condition to a space
1 Place the object you want to use as the interference condition in
a location intersecting the space as needed.
2 Select the space to which you want to add the interference
condition.
Creating Interference Conditions for Spaces | 2999
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