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Synopsis

isDirty [-connection] [-datablock] <plug>

isDirty is undoable, queryable, and editable.

The isDirty command is used to check if a plug is dirty. connected in the dependency graph. The return value is 0 if it is not and 1 if it is. If more than one plug is specified then the result is the logical "or" of all objects (ie. returns 1 if *any* of the plugs are dirty).

Flags

connection, datablock
Long name (short name) [argument types] Properties
-datablock(-d) create
Check the datablock entry for the plug.
-connection(-c) create
Check the connection of the plug (default).
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

Return value


boolean : Is the plug dirty? If more than one plug is given then it returns the logical "and" of all dirty states.

Related

attributeQuery, getClassification, isConnected, nodeType, objExists, objectType

MEL examples

sphere -n sun;

// Check connection of sun.tx
isDirty sun.tx;
// Return: 0 //

// Check datablock of sun.tx
isDirty -d sun.tx;
// Return: 0 //

// Check datablock and connection.
// Returns logical "and" of both.
isDirty -d -c sun.tx;
// Return: 0 //