Structural group attributes are defined in the structuralGroup attribute space (short name sg). Structural group attributes may only match structural group nodes.

The following structural group attributes are available in NSL:

structureID (short name id)

Attribute name	Short name	Possible values	Examples
`structureID`	`id`		`sg.id == 1`

structureID

The structuralGroup.structureID attribute (short name sg.id) matches structural groups with specific structure ID.

Possible values: integers.

Examples:

structuralGroup.structureID == 1 (short version: sg.id == 1): matches all structural groups with structure ID equal to 1
structuralGroup.structureID >= 5 and structuralGroup.structureID <= 10 (short version: sg.id >= 5 and sg.id <= 10): matches all structural groups with structure ID between 5 and 10