OpenMaya - API module for common classes

Namespaces
	MRandom
	Methods for generating random numbers.

Classes
class	MAddRemoveAttrEdit
	Class for describing edits involving attributes which are added or removed. More...
class	MAngle
	Manipulate Angular Data. More...
class	MArgDatabase
	Command argument list parser. More...
class	MArgList
	Create and retrieve argument lists. More...
class	MArgParser
	Command argument list parser. More...
class	MArrayDataBuilder
	Array builder for arrays in data blocks. More...
class	MArrayDataHandle
	Data block handle for array data. More...
class	MAtomic
	Methods for atomic operations. More...
class	MAttributeIndex
	The index information for an attribute specification. More...
class	MAttributePattern
	The pattern of an attribute tree that can be applied to nodes or node classes. More...
class	MAttributePatternArray
	Indexable Array of attribute patterns. More...
class	MAttributeSpec
	An attribute specification. More...
class	MAttributeSpecArray
	An attribute specification array. More...
class	MBoundingBox
	Implementation of a 3D bounding box. More...
class	MCacheConfigRuleRegistry
	Class for configuring the caching rules. More...
class	MCacheFormatDescription
	Cache format description. More...
class	MCallbackIdArray
	Array of MCallbackId data type. More...
class	MCameraMessage
	Dependency node messages. More...
class	MCameraSetMessage
	CameraSet messages. More...
class	MColor
	A color math class. More...
class	MColorArray
	Array of MColor data type. More...
class	MCommandMessage
	Helper class to handle MEL output. More...
class	MCommandResult
	Result returned from executing a command. More...
class	MCommonSystemUtils
	OS functionality. More...
class	MComputation
	Interupt monitor for long computations. More...
class	MConditionMessage
	Condition change messages. More...
class	MConnectDisconnectAttrEdit
	Class for describing connection and disconnection edits. More...
class	MContainerMessage
	Container-related messages. More...
class	MCurveAttribute
	Create and manipulate curve attributes. More...
class	MCustomEvaluatorClusterNode
	Scheduling cluster representing a self-contained cluster of work. More...
class	MDagMessage
	DAG messages. More...
class	MDagModifier
	Dependency graph modifier. More...
class	MDAGDrawOverrideInfo
	A data structure to store the per path draw override information. More...
class	MDagPath
	DAG Path. More...
class	MDagPathArray
	Indexable Array of DAG Paths. More...
class	MDataBlock
	Dependency node data block. More...
class	MDataHandle
	Data handle for information contained in a data block. More...
class	MDGContext
	Dependency graph (DG) context class. More...
class	MDGMessage
	Dependency graph messages. More...
class	MDGModifier
	Dependency graph modifier. More...
class	MDistance
	Manipulate Linear Data. More...
class	MDoubleArray
	Array of doubles data type. More...
class	MEdit
	Base class for representing information about edits. More...
class	MEulerRotation
	Euler Rotation Math. More...
class	MEvaluationGraph
	Evaluation graph object. More...
class	MEvaluationManager
	Class for working with Maya's Evaluation Manager. More...
class	MEvaluationNode
	Provides access to Evaluation Manager node information. More...
class	MEvaluationNodeIterator
	Provides access to the Evaluation Manager node dirty plug list. More...
class	MEventMessage
	Event messages. More...
class	MExternalContentInfoTable
	This is a table of all the external content for a given MPxNode. More...
class	MExternalContentLocationTable
	This is a table of the all the external content locations for a given MPxNode. More...
class	MFcurveEdit
	Class for describing fcurve edits. More...
class	MFileIO
	I/O operations on scene files. More...
class	MFileObject
	Manipulate filenames and search paths. More...
class	MFloatArray
	Array of floats data type. More...
class	MFloatMatrix
	A matrix math class for 4x4 matrices of floats. More...
class	MFloatPoint
	Implementation of a point. More...
class	MFloatPointArray
	Array of MFloatPoint data type. More...
class	MFloatVector
	A vector math class for vectors of floats. More...
class	MFloatVectorArray
	Array of MFloatVectors data type. More...
class	MFn
	Function Set Type Identifiers. More...
class	MFnAmbientLight
	Manage Ambient Light dependency Nodes. More...
class	MFnAnisotropyShader
	Manage anisotropic shaders. More...
class	MFnAreaLight
	Manage Area Light dependency Nodes. More...
class	MFnArrayAttrsData
	Function set for multiple arrays of attributes for dependency node data. More...
class	MFnAssembly
	Function set for scene assembly. More...
class	MFnAttribute
	Dependency node attribute function set. More...
class	MFnBase
	Function Set Base Class. More...
class	MFnBlinnShader
	Manage Blinn shaders. More...
class	MFnCamera
	Function set for cameras. More...
class	MFnCameraSet
	Camera set node function set. More...
class	MFnComponent
	Base class for component function sets. More...
class	MFnComponentListData
	Component list function set for dependency node data. More...
class	MFnCompoundAttribute
	Compound attribute function set. More...
class	MFnContainerNode
	container function set More...
class	MFnDagNode
	DAG Node Function Set. More...
class	MFnData
	Parent class for dependency graph data function sets. More...
class	MFnDependencyNode
	Dependency node function set. More...
class	MFnDirectionalLight
	Manage Directional Light dependency nodes. More...
class	MFnDoubleArrayData
	double array function set for dependency node data. More...
class	MFnDoubleIndexedComponent
	Double indexed component function set. More...
class	MFnEnumAttribute
	Enumerated attribute function set. More...
class	MFnExpression
	Expression function set. More...
class	MFnFloatArrayData
	float array function set for dependency node data. More...
class	MFnGenericAttribute
	Generic attribute function set. More...
class	MFnGeometryData
	Geometry data function set. More...
class	MFnIntArrayData
	int array function set for dependency node data. More...
class	MFnLambertShader
	Manage Lambert shaders. More...
class	MFnLatticeData
	Lattice Data dependency graph type. More...
class	MFnLayeredShader
	Manage Layered shaders. More...
class	MFnLight
	Manage dependency graph nodes representing lights. More...
class	MFnLightDataAttribute
	Light data attribute function set. More...
class	MFnMatrixArrayData
	Matrix array function set for dependency node data. More...
class	MFnMatrixAttribute
	Matrix attribute function set. More...
class	MFnMatrixData
	Matrix function set for dependency node data. More...
class	MFnMesh
	Polygonal surface function set. More...
class	MFnMeshData
	Mesh function set for dependency node data. More...
class	MFnMessageAttribute
	Message attribute function set. More...
class	MFnNonAmbientLight
	Manage Non-ambient Light dependency Nodes. More...
class	MFnNonExtendedLight
	Manage Non-extended Light dependency Nodes. More...
class	MFnNumericAttribute
	Numeric attribute function set. More...
class	MFnNumericData
	Numeric data function set. More...
class	MFnNurbsCurve
	NURBS curve function set. More...
class	MFnNurbsCurveData
	Nurbs Curve function set for dependency node data. More...
class	MFnNurbsSurface
	NURBS surface function set. More...
class	MFnNurbsSurfaceData
	Nurbs Surface function set for dependency node data. More...
class	MFnPartition
	Function set for partitions of objects. More...
class	MFnPhongEShader
	Manage phongE shaders. More...
class	MFnPhongShader
	Manage Phong Shaders. More...
class	MFnPlugin
	Register and deregister plug-in services with Maya. More...
class	MFnPluginData
	User defined data function set for dependency node data. More...
class	MFnPointArrayData
	Point array function set for dependency node data. More...
class	MFnPointLight
	Manage Point Light dependency Nodes. More...
class	MFnReference
	Function set for querying information about file references. More...
class	MFnReflectShader
	Manage Reflective Surface Shaders. More...
class	MFnSet
	Function Set for Sets of Objects. More...
class	MFnSingleIndexedComponent
	Single indexed component function set. More...
class	MFnSphereData
	Sphere function set for dependency node data . More...
class	MFnSpotLight
	Manage Spot Light dependency Nodes. More...
class	MFnStandardSurfaceShader
	Manage Standard Surface Shaders. More...
class	MFnStringArrayData
	String array function set for dependency node data. More...
class	MFnStringData
	String function set for dependency node data. More...
class	MFnSubd
	Subdivision surface function set. More...
class	MFnSubdData
	Subdiv Surface function set for dependency node data. More...
class	MFnSubdNames
	Manipulate Subdivision Surface vertex, edge and face ids. More...
class	MFnToolContext
	Tool context function set. More...
class	MFnTransform
	Create and access transform nodes. More...
class	MFnTripleIndexedComponent
	Triple indexed component function set. More...
class	MFnTypedAttribute
	Typed attribute function set. More...
class	MFnUInt64ArrayData
	MUint64 array function set for dependency node data. More...
class	MFnUint64SingleIndexedComponent
	Single MUint64 indexed component function set. More...
class	MFnUnitAttribute
	Unit attribute Function set. More...
class	MFnVectorArrayData
	int array function set for dependency node data. More...
class	MFnVolumeLight
	Manage volume Light dependency Nodes. More...
class	MGlobal
	Static class providing common API global functions. More...
class	MGraphNodeIterator
	Provides access to the cluster nodes in a given evaluation graph. More...
class	MIffFile
	Read file images stored on disk. More...
class	MIffTag
	Encapsulates IFF's 4 character block structure. More...
class	MImage
	Image manipulation. More...
class	MImageFileInfo
	Image manipulation. More...
class	MInt64Array
	Array of 64-bit integers data type. More...
class	MIntArray
	Array of integers data type. More...
class	MItCurveCV
	Iterator for NURBS curve CVs. More...
class	MItDag
	DAG Iterator. More...
class	MItDependencyGraph
	Dependency Graph Iterator. More...
class	MItDependencyNodes
	Dependency Node iterator. More...
class	MItEdits
	Edits iterator. More...
class	MIteratorType
	MIteratorType class. More...
class	MItGeometry
	Iterator class for geometry data. More...
class	MItInstancer
	Particle iterator. More...
class	MItMeshEdge
	Polygon edge iterator. More...
class	MItMeshFaceVertex
	Face vertex iterator. More...
class	MItMeshPolygon
	Polygon iterator. More...
class	MItMeshVertex
	Polygon vertex iterator. More...
class	MItSelectionList
	Iterate over the items in the selection list. More...
class	MItSubdEdge
	Subdiv edge iterator. More...
class	MItSubdFace
	Subdiv face iterator. More...
class	MItSubdVertex
	Subdiv vertex iterator. More...
class	MItSurfaceCV
	NURBS surface CV iterator. More...
class	MLockMessage
	Node and plug locking messages. More...
class	MMatrix
	A matrix math class for 4x4 matrices of doubles. More...
class	MMatrixArray
	Array of MMatrix data type. More...
class	MMeshIntersector
	Mesh intersector. More...
class	MPointOnMesh
	Mesh intersector result. More...
class	MMeshSmoothOptions
	Options for control of smooth mesh generation. More...
class	MMessage
	Message base class. More...
class	MModelMessage
	Scene messages. More...
class	MMutexLock
	Methods for managing locks on threads created. More...
class	MNamespace
	Namespace. More...
class	MNodeClass
	A class for performing node class-level operations in the dependency graph. More...
class	MNodeMessage
	Dependency node messages. More...
class	MNurbsIntersector
	Nurbs intersector. More...
class	MObject
	Generic Class for Accessing Internal Maya Objects. More...
class	MObjectArray
	Array of MObjects data type. More...
class	MObjectHandle
	Generic Class for validating MObjects. More...
class	MObjectSetMessage
	Object Set Messages. More...
class	MAutoCLKernel
	Auto pointer for cl_kernel objects. More...
class	MAutoCLMem
	Auto pointer for cl_mem objects. More...
class	MAutoCLEvent
	AutoPtr for cl_event objects. More...
class	MOpenCLBuffer
	Convenience class which makes allocating, updating and releasing OpenCL buffers easy. More...
class	MOpenCLInfo
	Global OpenCL information used by Maya. More...
class	MPaintMessage
	Scene messages. More...
class	MParentingEdit
	Class for describing edits to parenting. More...
class	MPlane
	A plane equation. More...
class	MPlug
	Create and Access dependency node plugs. More...
class	MPlugArray
	Array of MPlugs data type. More...
class	MPluginCallableInfo
	Helper class for plugin callbacks and messages. More...
class	MPoint
	Implementation of a point. More...
class	MPointArray
	Array of MPoint data type. More...
class	MPolyMessage
	Polygon component id change messages. More...
class	MProfiler
	Class for working with Maya's profiler. More...
class	MProfilingScope
	MProfilingScope is used to profile code execution time. More...
class	MPxAnimCurveInterpolator
	Base Class for User-defined Animation Curve Interpolation Types. More...
class	MPxAssembly
	Parent class of all user defined assembly nodes. More...
class	MPxAttributePatternFactory
	Base class for user-defined attribute pattern factories. More...
class	MPxBakeEngine
	Baking functionality. More...
class	MPxCacheConfigRuleFilter
	Proxy class for defining a new caching rule filter. More...
class	MPxCacheFormat
	CacheFormat definition. More...
class	MPxCameraSet
	Base class for user-defined camera set nodes. More...
class	MPxCommand
	Base class for user commands. More...
class	MPxComponentShape
	Component helper class for surface shapes. More...
class	MPxCustomEvaluator
	Base class for custom evaluation overrides in the evaluation manager. More...
class	MPxData
	Base Class for User-defined Dependency Graph Data Types. More...
class	MPxEditData
	Base class used to associate user-defined data with edits. More...
class	MPxFileResolver
	Base Class for creating custom Maya File Resolvers. More...
class	MPxFileTranslator
	Base Class for creating Maya File Translators. More...
class	MPxGeometryData
	Base Class for User-defined Dependency Graph Geometry Data Types. More...
class	MPxGeometryIterator
	Base class for user defined geometry iterators. More...
class	MPxImageFile
	Image manipulation. More...
class	MPxImagePlane
	Base class for user defined imagePlane nodes. More...
class	MaterialInputData
	Phong shading parameters for an MPxMaterialInformation instance. More...
class	MPxMaterialInformation
	Material information proxy. More...
class	MPxMayaAsciiFilterOutput
	Wrapper for a Maya Ascii file output stream. More...
class	MPxMayaAsciiFilter
	Translator to output filtered Maya ASCII files. More...
class	MPxMotionPathNode
	Base class for user defined motionPath nodes. More...
class	MPxMultiPolyTweakUVCommand
	Base class used for moving UV's on multiple objects. More...
class	MPxNode
	Base class for user defined dependency nodes. More...
class	MPxObjectSet
	Parent class of all user defined object sets. More...
class	MPxPolyTrg
	User defined poly triangulation support. More...
class	MPxPolyTweakUVCommand
	Base class used for moving polygon UV's. More...
class	MPxRepresentation
	Abstract base class for user defined representations. More...
class	MPxSurfaceShape
	Parent class of all user defined shapes. More...
class	MPxTopologyEvaluator
	Topology override evaluator for fine grain evaluation graphs. More...
class	MPxTransform
	Base class for user defined transforms. More...
class	MPxTransformationMatrix
	Base class of all user defined transformation matrices. More...
class	MQuaternion
	Quaternion math. More...
class	MRampAttribute
	Create and manipulate ramp attributes. More...
class	MRichSelection
	Selection list supporting soft selection and symmetry. More...
class	MSceneMessage
	Scene messages. More...
class	MScriptUtil
	Utility class for working with pointers and references in Python. More...
class	MSelectionList
	A list of MObjects. More...
class	MSetAttrEdit
	Class for describing setAttr edits. More...
class	MSpinLock
	Methods for managing spin locks on threads. More...
class	MStatus
	Manipulate Maya Status codes. More...
class	MStreamUtils
	Stream functionality. More...
class	MString
	Manipulate strings. More...
class	MStringArray
	Array of MStrings data type. More...
class	MStringResource
	Localizable string resources. More...
class	MStringResourceId
	Unique identifier for an MString Resource. More...
class	MSyntax
	Syntax for Commands. More...
class	MTemplateAction< ActionClass, CommandName, CommandSyntax >
	Template class for non undoable actions. More...
class	MTemplateCommand< CommandClass, CommandName, CommandSyntax >
	Template class for undoable commands. More...
class	MTemplateCreateNodeCommand< CommandClass, CommandName, NodeName >
	Template class for undoable commands to create/delete a node. More...
class	MTesselationParams
	Tesselation parameters. More...
class	MThreadAsync
	Methods for creating threads. More...
class	MThreadPool
	Methods for creating and managing a thread pool. More...
class	MThreadUtils
	Helper methods for threaded plugins. More...
class	MTime
	Set and retrieve animation time values in various unit systems. More...
class	MTimeArray
	Array of MTime data type. More...
class	MTimer
	This class works similar to timerX MEL command. More...
class	MTimerMessage
	Register callbacks that are based on a fixed time interval. More...
class	MTopologyClusterNode
	Topology cluster representing a fine grain evaluation graph. More...
class	MTransformationMatrix
	Transformation matrix. More...
class	MTrimBoundaryArray
	An array class for trim boundaries. More...
class	MTypeId
	Manage Maya Object type identifiers. More...
class	MUint64Array
	Array of MUint64 data type. More...
class	MUintArray
	Array of integers data type. More...
class	MUniqueString
	A non-mutable string with O(1) comparison operators. More...
class	MURI
	Manipulating Uniform Resource Identifiers. More...
class	MUserEventMessage
	User defined Message Types. More...
class	MUuid
	Class to manipulate UUIDs. More...
class	MVector
	A vector math class for vectors of doubles. More...
class	MVectorArray
	Array of MVectors data type. More...
class	MWeight
	Component weight data. More...
class	MDGContextGuard
	Scope object used to modify current evaluation context in a code block. More...

Macros
#define	obsolete_2019   public
	OpenMaya deprecation system. More...

Detailed Description

Macro Definition Documentation

#define obsolete_2019   public

OpenMaya deprecation system.

Macros to allow code to be selectively removed from the build based on deprecation criteria.

Here is a list of the currently supported deprecation flags. To build your plug-in to be compatible with deprecated functions removed just add the following defines to your compile flags:

• _OPENMAYA_DEPRECATION_DISABLE_WARNING : Silent any deprecation warning
• _OPENMAYA_DEPRECATION_ERROR_2019 : Treat call to deprecated methods from 2019 as error
• _OPENMAYA_DEPRECATION_ERROR_2018 : Treat call to deprecated methods from 2018 as error
• _OPENMAYA_DEPRECATION_ERROR_ALL : Treat call to any deprecated methods as error

Defined attributes:

• OPENMAYA_DEPRECATED(version, message) : Methods and classes marked with this attributes are deprecated from "version", see "message" for replacement.

Defined helper directives:

• _OPENMAYA_DEPRECATION_PUSH_AND_DISABLE_WARNING : Disable the deprecation warning until the _OPENMAYA_POP_WARNING directive
• _OPENMAYA_POP_WARNING : Restore the deprecation warning

If you are building with a customized compiler that does not have a proper support it is safe to disable or edit this header file.