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empty selection set
A selection set that contains no objects.
explode
To disassemble a complex object, such as a block, dimension, solid, or polyline,
into simpler objects. In the case of a block, the block definition is unchanged.
The block reference is replaced by the components of the block. See also block,
block definition, and block reference. (EXPLODE)
exploded dimension
Independent objects that have the appearance of a dimension but are not
associated with the dimensioned object or each other. Controlled by the
DIMASSOC system variable. See also associative dimension, nonassociative
dimension, and explode. (EXPLODE)
extents
See drawing extents.
external reference (xref)
A drawing file referenced by another drawing. (XREF)
feature control frame
The tolerance that applies to specific features or patterns of features. Feature
control frames always contain at least a geometric characteristic symbol to
indicate the type of control and a tolerance value to indicate the amount of
acceptable variation.
fence
A multi-segmented line specified to select objects it passes through.
Glossary | 535
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