The PatternFeatureItemBaseType is the abstract base type that defines an individual pattern feature. A pattern feature is a complex feature defined by a set of identically shaped feature of size features (e.g., holes, bosses, slots, tabs) in a pattern (e.g., bolt hole circle) and to which a composite pattern tolerance may be applied. A pattern feature may not be a counterbore, countersink, or runout group.
The id attribute is the QIF id of the feature, used for referencing.
Source
<xs:complexType name="PatternFeatureItemBaseType" abstract="true"><xs:annotation><xs:documentation>The PatternFeatureItemBaseType is the abstract base type that defines an individual pattern feature. A pattern feature is a complex feature defined by a set of identically shaped feature of size features (e.g., holes, bosses, slots, tabs) in a pattern (e.g., bolt hole circle) and to which a composite pattern tolerance may be applied. A pattern feature may not be a counterbore, countersink, or runout group.</xs:documentation></xs:annotation><xs:complexContent><xs:extension base="GroupFeatureItemType"/></xs:complexContent></xs:complexType>