Component Tag expressions

You can use expressions to search the Component Tags table or the Deformer Attributes Widget.

Operators

Use the following operators to provide boolean and order of evaluation operations:

Symbol	Meaning
'+' (plus)	Union: performs a boolean union operation on componentTags.
'-' (minus)	Subtract: performs a boolean difference operation on componentTags.
'^' (circumflex)	Intersection: performs a boolean exclusion. For example, *^tagGroup includes everything except items in componentTag "tagGroup".
':' (colon)	Dot operator: lets you work with namespace sets, for example, shirt:sleeve works. Note: You cannot have colons at the start or end of a name, nor can you use multiple instances, for example shirt::sleeve.
'.' (period)	Dot operator: lets you work with namespace sets, for example, shirt.sleeve works. Note: You cannot have periods at the start or end of a name, nor can you use multiple instances, for example shirt..sleeve.

Tip: Use ',' (comma) to separate tags.

Wildcards

Use the following wildcards to match against componentTag names.

Symbol	Meaning
* (asterisk)	Matches against any number of characters.

Functions

Use the following functions to cast componentTags of one type to another.

Symbol	Meaning
v()	Casts the member components to vertices.
e()	Casts the member components to edges.
f(f)	Casts the member components to faces.

Evaluation Queries

Component Tag expressions can be passed to the geomAttrInfo command to query the resolved list of components.

For example:

polyCylinder -sx 20 -sy 4 -sz 4;
geometryAttrInfo -cmp  -cex "bottom+cylSides" pCylinder1.outMesh;
// Result: vtx[0:159] vtx[220] // 

Naming Syntax

You can use the following characters in Component Tags to work with managing complex groups.

Symbol	Meaning
':' (colon)	Lets you work with namespace sets, for example, shirt:sleeve works. Note: You cannot have colons at the start or end of a name, nor can you use multiple instances, for example shirt::sleeve.
'.' (period)	Lets you work with namespace sets, for example, shirt.sleeve works. Note: You cannot have periods at the start or end of a name, nor can you use multiple instances, for example shirt..sleeve.

Tip: Use ',' (comma) to separate tags.