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Synopsis

listAttrPatterns [-patternType] [-verbose]

listAttrPatterns is NOT undoable, NOT queryable, and NOT editable.

Attribute patterns are plain text descriptions of an entire Maya attribute forest. ("forest" because there could be an arbitrary number of root level attributes, it's not restricted to having a single common parent though in general that practice is a good idea.) This command lists the various pattern types available, usually created via plugin, as well as any specific patterns that have already been instantiated. A pattern type is a thing that knows how to take some textual description of an attribute tree, e.g. XML or plaintext, and convert it into an attribute pattern that can be applied to any node or node type in Maya.

Return value

string[] List of patterns or pattern instances available

Keywords

attribute, pattern

Related

addAttr, addExtension, applyAttrPattern, createAttrPatterns, deleteAttrPattern

Flags

patternType, verbose
Long name (short name) Argument types Properties
-patternType(-pt) create
If turned on then show the list of pattern types rather than actual instantiated patterns.
-verbose(-v) create
If turned on then show detailed information about the patterns or pattern types. The same list of instance or pattern names is returned as for the non-verbose case.
Flag can appear in Create mode of command Flag can appear in Edit mode of command
Flag can appear in Query mode of command Flag can be used more than once in a command.

MEL examples

listAttrPatterns;
// Return: approvalAttrs sceneAndShotAttrs //
listAttrPatterns -patternType;
// Return: xmlPatternFactory //
listAttrPatterns -patternType -verbose;
// Return: xmlPatternFactory xmlPatternFactory/approvalAttrs xmlPatternFactory/sceneAndShotAttrs //
listAttrPatterns -verbose;
Pattern approvalAttrs
    PatternFactory xmlPatternFactory:
    File: "attrPatterns/approvalAttrs.xml"
    Attribute Count: 8
    Attribute Tree:
      fxApproval (compound)
        fxApprover (string)
        fxApprovalDate (int)
        fxApprovalState (enum)
      layoutApproval (compound)
        layoutApprover (string)
        layoutApprovalDate (int)
        layoutApprovalState (enum)
  Pattern sceneAndShotAttrs
    PatternFactory xmlPatternFactory:
    File: "attrPatterns/sceneAndShotAttrs.xml"
    Attribute Count: 4
    Attribute Tree:
      sceneId (int)
      sceneOwner (string)
      shotId (int)
      shotOwner (string)
// Return: approvalAttrs sceneAndShotAttrs //