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deleteExtension([attribute=string], [forceDelete=boolean], [nodeType=string])
Note: Strings representing object names and arguments must be separated by commas. This is not depicted in the synopsis.
deleteExtension is NOT undoable, NOT queryable, and NOT editable.
This command is used to delete an extension attribute
from a node type. The attribute can be specified
by using either the long or short name. Only one
extension attribute can be deleted at a time.
Children of a compound attribute cannot be deleted,
you must delete the complete compound attribute.
This command has no undo, edit, or query capabilities.
| int | Number of nodes with altered data after the delete |
attribute, dependency, graph, delete, extension
addAttr, addExtension, aliasAttr, attributeInfo, connectAttr, deleteAttr, disconnectAttr, getAttr, getClassification, nodeType, objExists, objectType, renameAttr, setAttr
attribute, forceDelete, nodeType
| Long name (short name) |
Argument types |
Properties |
nodeType(nt)
|
string
|
|
|
The name of the node type.
|
|
attribute(at)
|
string
|
|
|
Specify either the long or short name of the attribute.
|
|
forceDelete(fd)
|
boolean
|
|
|
If this flag is set and turned ON then data values for the extension
attributes are all deleted without confirmation. If it's set and turned
OFF then any extension attributes that have non-default values set on any
node will remain in place. If this flag is not set at all then the user
will be asked if they wish to preserve non-default values on this
attribute.
|
|
|
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 have multiple arguments, passed either as a tuple or a list.
|
import maya.cmds as cmds
cmds.addExtension( nodeType='planet', longName='martians', shortName='mr', attributeType='double' )
cmds.createNode( 'planet', name='jupiter' )
cmds.createNode( 'planet', name='mars' )
cmds.setAttr( 'mars.mr', 35 )
# Delete an extension attribute named mr/martians.
# Only returns 1 since the planet node 'jupiter'
# does not have a non-default value on the extension.
cmds.deleteExtension( nodeType='planet', forceDelete=True, attribute='martians' )
# Return: 1 //
# The attribute is gone since it was forced out
cmds.attributeQuery( type='planet', attribute='mr', query=True, exists=True )
# Return: 0 //
# Re-add and delete the extension again, forcing the
# attribute to remain if non-default values exist.
cmds.addExtension( nodeType='planet', longName='martians', shortName='mr', attributeType='double' )
cmds.setAttr( 'mars.mr', 35 )
cmds.deleteExtension( nodeType='planet', forceDelete=False, attribute='mr' )
# Return: 0 //
# The attribute still exists since it had some non-default values
cmds.attributeQuery( type='planet', attribute='mr', query=True, exists=True )
# Return: 1 //
cmds.attributeQuery( name='jupiter', attribute='mr', query=True, exists=True )
# Return: 1 //