#include <MFnClip.h>

Class Description

clip function set

Maya uses animation clips as the building block of its nonlinear animation system, "Trax". An animation clip allows the user to bundle a set of animation curves independent of time so that they can be reused multiple times, with different timing then the original clip.

Character sets (MFnCharacter) are integral to Maya's clip architecture, since a clip contains whatever attributes of the character were animated when the clip was created. For more information on character sets, refer to the MFnCharacter documentation.

Clips in maya can be of two types: source clips and scheduled clips. In the Maya UI, source clips are visible in the Visor while scheduled clips are visible in Trax. A source clip contains the animation curves for the clip. A scheduled clip contains data about the placement of an instance of a source clip in the Maya timeline. In this context, an "instance" means that the animation curves from the source clip are shared by the scheduled clip. Scheduled clips never contain their own animation curves, they always refer to a source clip's curves.

For example, if you create a clip called "run" in maya that lasts from frames 1-20, a source clip node will be created with a start of 1, a duration of 19, and dependency graph connections to all of the animation curves that make up the "run". If you then place an instance of the run clip at frame 5 and another instance of the run clip at frame 20, you have 2 scheduled clips: one with a start frame of 5 and one with a start frame of 20. As mentioned in the previous paragraph, only a single set of animation curves exist for the run regardless of the number of times the run is scheduled.

Trax also allows you to create "blends" between clips, which enable you to control the transition between the clips. A blend is represented in the dependency graph by an "animBlendInOut" node, which uses an animation curve to determine the transition type.

In the dependency graph, when a character has animation clips, the character node will always be connected to a "clipLibrary" node and a "clipScheduler" node. The clipLibrary node is connected to all of the source clips and their animation curves. The clipScheduler node is connected to the scheduled clips and blends. It is the clipScheduler that computes the final animation by looking at the placement and overlap of the clips and feeding the attribute data back into the character set.

To create a source clip, the typical steps are:

If the attributes are not already in a character, create a character containing the attributes.
Create a source clip using MFnClip::createSourceClip
Attach the clip to a character using MFnCharacter::attachSourceToCharacter
Attach animation curves to the clip using MFnCharacter::addCurveToClip

To create a scheduled clip so that it appears in the Trax Editor, the typical steps are:

Create an instanced animClip node using MFnClip::createInstancedClip, and associate it with the source clip that you want to instance.
Attach the clip instance to the character using MFnCharacter::attachInstanceToCharacter

Examples:: createClipCmd/createClipCmd.cpp.

Inheritance diagram for MFnClip:

Public Member Functions
virtual MFn::Type	type () const
	Function set type. More...

virtual	~MFnClip ()
	Destructor.

	MFnClip ()
	Default constructor.

	MFnClip (MObject &object, MStatus *ReturnStatus=NULL)
	Constructor. More...

MObject	createSourceClip (const MTime &sourceStart, const MTime &sourceDuration, MDGModifier &dgMod, MStatus *ReturnStatus=NULL)
	Creates a source clip node and associates it with this function set. More...

MObject	createInstancedClip (MObject &sourceClip, const MTime &start, MDGModifier &dgMod, MStatus *ReturnStatus=NULL, bool absolute=1, double postCycle=0.0, double weight=1.0, double scale=1.0, double preCycle=0.0)
	Creates an instance of a clip that will be viewable in the Trax editor. More...

bool	isInstancedClip (MStatus *ReturnStatus=NULL)
	Return true or false as to whether the clip node represents the source clip or an instanced clip. More...

bool	isPose (MStatus *ReturnStatus=NULL)
	Return true or false as to whether the clip node represents a pose. More...

MObject	sourceClip (MStatus *ReturnStatus=NULL)
	Return the source clip associated with the MFnClip's clip. More...

double	getPreCycle (MStatus *ReturnStatus=NULL)
	Return the value of this clip's pre cycle attribute. More...

double	getPostCycle (MStatus *ReturnStatus=NULL)
	Return the value of this clip's post cycle attribute. More...

double	getCycle (MStatus *ReturnStatus=NULL)
	This method is obsolete. More...

double	getWeight (MStatus *ReturnStatus=NULL)
	Return the value of this clip's weight attribute. More...

double	getScale (MStatus *ReturnStatus=NULL)
	Return the value of this clip's scale attribute. More...

bool	getAbsolute (MStatus *ReturnStatus=NULL)
	This method is obsolete. More...

bool	getEnabled (MStatus *ReturnStatus=NULL)
	Return the value of this clip's enable attribute. More...

MTime	getStartFrame (MStatus *ReturnStatus=NULL)
	Return the value of this clip's start frame. More...

MTime	getSourceStart (MStatus *ReturnStatus=NULL)
	Return the value of the start frame of this clip's source clip. More...

MTime	getSourceDuration (MStatus *ReturnStatus=NULL)
	Return the value of the start frame of this clip's source duration. More...

MStatus	getMemberAnimCurves (MObjectArray &curves, MPlugArray &associatedAttrs)
	Return two arrays: the first contains the animCurves associated with this clip. More...

MStatus	getAbsoluteChannelSettings (MIntArray &absoluteChannels)
	Return an array indicating which channels of the clip are absolute and which are relative. More...

int	getTrack (MStatus *ReturnStatus=NULL)
	Return the track number for the clip. More...

MStatus	setPoseClip (bool state, MDGModifier *mod=NULL)
	Specify whether or not this clip node should be tagged as a pose rather than a clip. More...

MStatus	setPreCycle (double cycle, MDGModifier *mod=NULL)
	Specify the pre cycle value for the clip. More...

MStatus	setPostCycle (double cycle, MDGModifier *mod=NULL)
	Specify the post cycle value for the clip. More...

MStatus	setCycle (double cycle, MDGModifier *mod=NULL)
	This method is obsolete. More...

MStatus	setWeight (double wt, MDGModifier *mod=NULL)
	Specify a weight value for the clip. More...

MStatus	setScale (double scale, MDGModifier *mod=NULL)
	Specify a scale value for the clip. More...

MStatus	setAbsolute (bool abs, MDGModifier *mod=NULL)
	This method is obsolete. More...

MStatus	setEnabled (bool val, MDGModifier *mod=NULL)
	Specify whether or not the clip is enabled. More...

MStatus	setStartFrame (const MTime &start, MDGModifier *mod=NULL)
	Specify the start frame for the instanced clip. More...

MStatus	setSourceData (const MTime &start, const MTime &duration, MDGModifier *mod=NULL)
	Specify the start frame and duration for the source clip associated with this clip. More...

MStatus	setTrack (int index, MDGModifier *mod=NULL)
	Specify the one-based track number for the clip. More...

MStatus	setAbsoluteChannelSettings (const MIntArray &absoluteChannels, MDGModifier *mod=NULL)
	Set which channels of the clip are absolute and which are relative. More...

	MFnClip (const MObject &object, MStatus *ReturnStatus=NULL)
	Constructor. More...

Public Member Functions inherited from MFnDependencyNode
virtual	~MFnDependencyNode ()
	Destructor.

	MFnDependencyNode ()
	Default constructor.

	MFnDependencyNode (MObject &object, MStatus *ReturnStatus=NULL)
	Constructor. More...

MObject	create (const MTypeId &typeId, MStatus *ReturnStatus=NULL)
	Creates a new dependency node with the given type tag. More...

MObject	create (const MTypeId &typeId, const MString &name, MStatus *ReturnStatus=NULL)
	Creates a new dependency node with the given type tag. More...

MObject	create (const MString &type, MStatus *ReturnStatus=NULL)
	Creates a new dependency node with the given type. More...

MObject	create (const MString &type, const MString &name, MStatus *ReturnStatus=NULL)
	Creates a new dependency node with the given type. More...

MTypeId	typeId (MStatus *ReturnStatus=NULL) const
	Returns the type id of this node. More...

MString	typeName (MStatus *ReturnStatus=NULL) const
	Returns the type name of this node. More...

MString	name (MStatus *ReturnStatus=NULL) const
	Returns the name of this node. More...

MString	absoluteName (MStatus *ReturnStatus=NULL) const
	Returns the absolute name of this node. More...

MString	pluginName (MStatus *ReturnStatus=NULL) const
	Returns the name of the plug-in this MFnDependendencyNode was defined in. More...

MString	setName (const MString &name, bool createNamespace=false, MStatus *ReturnStatus=NULL)
	Sets the name of this node. More...

MUuid	uuid (MStatus *ReturnStatus=NULL) const
	Returns the node's UUID. More...

void	setUuid (const MUuid &uuid, MStatus *ReturnStatus=NULL)
	Sets the node's UUID. More...

MStatus	getConnections (MPlugArray &array) const
	Get all of the current connections to this node as an array of plugs. More...

unsigned int	attributeCount (MStatus *ReturnStatus=NULL) const
	Returns the number of attributes that this node has. More...

MObject	attribute (unsigned int index, MStatus *ReturnStatus=NULL) const
	Finds the attribute of this node at the given index. More...

MObject	reorderedAttribute (unsigned int index, MStatus *ReturnStatus=NULL) const
	Some nodes, such as the various animCurve nodes, require that their attributes be set in a specific order for proper operation. More...

MObject	attribute (const MString &attrName, MStatus *ReturnStatus=NULL) const
	Finds the attribute of this node that has the given name. More...

MAttrClass	attributeClass (const MObject &attr, MStatus *ReturnStatus=NULL) const
	Returns the class (normal, dynamic, extension) of the specified attribute. More...

MStatus	getAffectedAttributes (const MObject &attr, MObjectArray &affectedAttributes) const
	Returns an array of attributes that are affected by the attribute passed in. More...

MStatus	getAffectedByAttributes (const MObject &attr, MObjectArray &affectedByAttributes) const
	Returns an array of attributes that affect the attribute passed in, attr. More...

MPlug	findPlug (const MObject &attr, bool wantNetworkedPlug, MStatus *ReturnStatus=NULL) const
	Attempt to find a plug for the given attribute. More...

MPlug	findPlug (const MString &attrName, bool wantNetworkedPlug, MStatus *ReturnStatus=NULL) const
	Attempt to find a plug for the given attribute. More...

MPlug	findPlug (const MObject &attr, MStatus *ReturnStatus=NULL) const
	This method is obsolete. More...

MPlug	findPlug (const MString &attrName, MStatus *ReturnStatus=NULL) const
	This method is obsolete. More...

MStatus	addAttribute (const MObject &attr)
	Add a new dynamic attibute to this node. More...

MStatus	removeAttribute (const MObject &attr)
	Remove a dynamic attribute from a node. More...

MPxNode *	userNode (MStatus *ReturnStatus=NULL) const
	If the function set's node is a plug-in node, then this method will extract the MPxNode pointer from it. More...

bool	isFromReferencedFile (MStatus *ReturnStatus=NULL) const
	Indicates whether or not this node came from a referenced file. More...

bool	isShared (MStatus *ReturnStatus=NULL) const
	Indicates whether or not this node is shared. More...

bool	isTrackingEdits (MStatus *ReturnStatus=NULL) const
	Returns whether or not edits on the given node are being tracked by the generalized edit system. More...

bool	hasUniqueName (MStatus *ReturnStatus=NULL) const
	Indicates whether or not this node's name is unique within the scene. More...

MString	parentNamespace (MStatus *ReturnStatus=NULL) const
	Returns the name of the namespace in which this node resides. More...

bool	isLocked (MStatus *ReturnStatus=NULL) const
	Indicates whether or not this node is locked. More...

MStatus	setLocked (bool locked)
	Locks or unlocks this node. More...

bool	isNewAttribute (const MObject &attr, MStatus *ReturnStatus=NULL) const
	Indicates whether or not the specified attribute was added to this node within the current scene. More...

MStatus	setFlag (unsigned int flag, bool state)
	Sets the state of the specified flag for the node. More...

bool	isFlagSet (unsigned int flag, MStatus *ReturnStatus=NULL) const
	Retrieves the current state of the specified flag for a node. More...

bool	isDefaultNode (MStatus *ReturnStatus=NULL) const
	Returns true if the node is a default node. More...

MStatus	setDoNotWrite (bool flag)
	Use this method to mark the "do not write" state of this node. More...

bool	canBeWritten (MStatus *ReturnStatus=NULL) const
	Returns the do not write state of the node. More...

bool	hasAttribute (const MString &name, MStatus *ReturnStatus=NULL) const
	Returns true if the node already has an attribute with the given name. More...

MObject	getAliasAttr (bool force, MStatus *ReturnStatus=NULL)
	Returns the node's alias attribute, which is a special attribute used to store information about the node's attribute aliases. More...

bool	setAlias (const MString &alias, const MString &name, const MPlug &plug, bool add=true, MStatus *ReturnStatus=NULL)
	Sets or removes an alias (i.e. More...

bool	findAlias (const MString &alias, MObject &attrObj, MStatus *ReturnStatus=NULL) const
	Retrieves the attribute with the given alias. More...

bool	getAliasList (MStringArray &strArray, MStatus *ReturnStatus=NULL)
	Returns a list of all attribute aliases for this node. More...

MString	plugsAlias (const MPlug &plug, MStatus *ReturnStatus=NULL)
	Returns the alias for the plug's attribute or the empty string if that attribute has no alias. More...

MStatus	setIcon (const MString &filename)
	Associates a custom icon with the node for display in the Maya UI. More...

MString	icon (MStatus *ReturnStatus=NULL) const
	Returns the custom icon filename associated with the node. More...

MStatus	getExternalContent (MExternalContentInfoTable &table) const
	Returns the external content (files) that this node depends on. More...

MStatus	addExternalContentForFileAttr (MExternalContentInfoTable &table, const MObject &attr) const
	Adds content info to the specified table from a file path attribute. More...

MStatus	setExternalContentForFileAttr (const MObject &attr, const MExternalContentLocationTable &table)
	Sets content info in the specified attribute from the table. More...

MStatus	setExternalContent (const MExternalContentLocationTable &table)
	Changes the location of external content. More...

MString	setName (const MString &name, MStatus *ReturnStatus)
	OBSOLETE FUNCTION, NO SCRIPT SUPPORT. More...

	MFnDependencyNode (const MObject &object, MStatus *ReturnStatus=NULL)
	NO SCRIPT SUPPORT. More...

bool	getPlugsAlias (const MPlug &plug, MString &aliasName, MStatus *ReturnStatus=NULL)
	NO SCRIPT SUPPORT. More...

virtual const adsk::Data::Associations *	metadata (MStatus *ReturnStatus=NULL) const
	This method is not available in Python. More...

virtual MStatus	setMetadata (const adsk::Data::Associations &)
	This method is not available in Python. More...

virtual MStatus	deleteMetadata ()
	This method is not available in Python. More...

virtual MStatus	validateMetadata (MString &errors) const
	This method is not available in Python. More...

MStatus	dgTimerOn ()
	Indicates that this node should collect DG timing data whenever DG timing is enabled. More...

MStatus	dgTimerOff ()
	Indicates that this node should no longer collect DG timing data when DG timing is enabled. More...

MdgTimerState	dgTimerQueryState (MStatus *ReturnStatus=NULL)
	The function returns the current on/off state of the node's timer. More...

MStatus	dgTimerReset ()
	The function resets the dependency graph timers and counters for this node to zero. More...

double	dgTimer (const MdgTimerMetric timerMetric, const MdgTimerType timerType, MStatus *ReturnStatus=NULL) const
	The function returns the specified timer value for the current node. More...

MStatus	dgCallbacks (const MdgTimerType type, MStringArray &callbackName, MDoubleArray &value)
	Node callbacks that occur when timing is enabled get logged with the node and can be queried via this method. More...

MStatus	dgCallbackIds (const MdgTimerType type, const MString &callbackName, MCallbackIdArray &callbackId, MDoubleArray &value)
	This method provides a further breakdown of the per-callback time returned via dgCallbacks() by returning the data on a per-callbackId basis. More...

MStatus	addAttribute (const MObject &attr, MAttrClass type)
	This method is obsolete. More...

MStatus	removeAttribute (const MObject &attr, MAttrClass type)
	This method is obsolete. More...

Public Member Functions inherited from MFnBase
virtual	~MFnBase ()
	Class Destructor. More...

bool	hasObj (MFn::Type) const
	Determines whether or not the Function Set is compatible with the specified Maya Object within the API RTTI system. More...

bool	hasObj (const MObject &) const
	Determines whether or not the Function Set is compatible with the specified Maya Object within the API RTTI system. More...

MObject	object (MStatus *ReturnStatus=NULL) const
	Returns the MObject that is attached to the Function Set. More...

virtual MStatus	setObject (MObject &object)
	Attaches the Function Set to the specified Maya Object. More...

virtual MStatus	setObject (const MObject &object)
	NO SCRIPT SUPPORT. More...

Protected Member Functions
virtual const char *	className () const
	Class name. More...

Additional Inherited Members
Public Types inherited from MFnDependencyNode
enum	MAttrClass { kLocalDynamicAttr = 1, kNormalAttr, kExtensionAttr, kInvalidAttr }
	Specifies the scope of the attribute. More...

enum	MdgTimerState { kTimerOff, kTimerOn, kTimerUninitialized, kTimerInvalidState }
	Possible states for the node's timer. More...

enum	MdgTimerMetric { kTimerMetric_callback, kTimerMetric_compute, kTimerMetric_dirty, kTimerMetric_draw, kTimerMetric_fetch, kTimerMetric_callbackViaAPI, kTimerMetric_callbackNotViaAPI, kTimerMetric_computeDuringCallback, kTimerMetric_computeNotDuringCallback, kTimerMetrics }
	The different timer metrics which can be queried. More...

enum	MdgTimerType { kTimerType_self, kTimerType_inclusive, kTimerType_count, kTimerTypes }
	The types of timers which can be queried. More...

Static Public Member Functions inherited from MFnDependencyNode
static MString	classification (const MString &nodeTypeName)
	Retrieves the classification string for a node type. More...

static unsigned int	allocateFlag (const MString pluginName, MStatus *ReturnStatus=NULL)
	Allocates a node flag for sole use by the caller. More...

static MStatus	deallocateFlag (const MString pluginName, unsigned int flag)
	Deallocates a node flag which was previously allocated by a call to allocateFlag. More...

static MStatus	deallocateAllFlags (const MString pluginName)
	Deallocates all of the node flags which are currently allocated to the specified plugin. More...

static void	enableDGTiming (bool enable)
	Globally enables or disables the DG node timing mechanism. More...

Static Public Member Functions inherited from MFnBase
static const char *	className ()
	Returns the name of this class. More...

Constructor & Destructor Documentation

MFnClip	(	MObject &	object,
		MStatus *	ReturnStatus = `NULL`
	)

Constructor.

Class constructor that initializes the function set to the given MObject.

Parameters

[in]	object	The MObject to attach the function set to
[out]	ReturnStatus	the return status

Status Codes:

MS::kSuccess if the function set is successfully attached
MS::kInvalidParameter if the MObject does not represent a valid Maya object or if the function set is not allowed to attach to this MObject

MFnClip	(	const MObject &	object,
		MStatus *	ReturnStatus = `NULL`
	)

Constructor.

Class constructor that initializes the function set to the given MObject.

Parameters

[in]	object	The MObject to attach the function set to
[out]	ReturnStatus	the return status

Status Codes:

MS::kSuccess if the function set is successfully attached
MS::kInvalidParameter if the MObject does not represent a valid Maya object or if the function set is not allowed to attach to this MObject

Member Function Documentation

MFn::Type type ( ) const

virtual

Function set type.

Return the class type : MFn::kClip.

Reimplemented from MFnDependencyNode.

const char * className ( ) const

protectedvirtual

Class name.

Return the class name : "MFnClip".

Reimplemented from MFnDependencyNode.

MObject createSourceClip	(	const MTime &	sourceStart,
		const MTime &	sourceDuration,
		MDGModifier &	dgMod,
		MStatus *	ReturnStatus = `NULL`
	)

Creates a source clip node and associates it with this function set.

Each animation clip has a single source clip, which defines the startFrame and duration of the clip's animation curves. The startFrame and duration act as a window onto the animation curves, defining the range of animation that is considered part of the clip. After a source clip node is created, it can be passed to a MFnCharacter along with the clip animCurves in order to associate the clip with the character.

Parameters

[in]	sourceStart	time on clip animCurves that represents clip start
[in]	sourceDuration	time extent of the clip
[in]	dgMod	command modifier used for undo and redo
[out]	ReturnStatus	return status

Returns: The newly created clip.

Status Codes:

MS::kSuccess operation successful
MS::kFailure operation failed
MS::kInsufficientMemory out of memory

Examples:: createClipCmd/createClipCmd.cpp.

MObject createInstancedClip	(	MObject &	sourceClip,
		const MTime &	start,
		MDGModifier &	dgMod,
		MStatus *	ReturnStatus = `NULL`,
		bool	absolute = `1`,
		double	postCycle = `0.0`,
		double	weight = `1.0`,
		double	scale = `1.0`,
		double	preCycle = `0.0`
	)

Creates an instance of a clip that will be viewable in the Trax editor.

Parameters

[in]	sourceClip	the source clip node
[in]	start	start frame where the instance will be scheduled
[in]	dgMod	command modifier used for undo and redo
[in]	ReturnStatus	return status
[in]	absolute	whether the clip is absolute (1) or relative (0)
[in]	preCycle	pre cycle for the clip
[in]	postCycle	post cycle for the clip
[in]	weight	weight for the clip
[in]	scale	scale for the clip

Returns: The newly created clip.

Status Codes:

MS::kSuccess operation successful
MS::kFailure invalid source clip was provided
MS::kInsufficientMemory out of memory

Examples:: createClipCmd/createClipCmd.cpp.

bool isInstancedClip ( MStatus * ReturnStatus = NULL )

Return true or false as to whether the clip node represents the source clip or an instanced clip.

All clips maintained by the clipScheduler node and visible in the TraX editor are instanced clips. All clips maintained by the clipLibrary node and visible in the Visor are non-instanced clips, also called "Source Clips". Each instanced clip has a corresponding source clip.

Parameters

[out] ReturnStatus return status

Returns: True or false as to whether the clip is an instanced clip.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

bool isPose ( MStatus * ReturnStatus = NULL )

Return true or false as to whether the clip node represents a pose.

Parameters

[out] ReturnStatus return status

Returns: True or false as to whether the clip is a pose.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

MObject sourceClip ( MStatus * ReturnStatus = NULL )

Return the source clip associated with the MFnClip's clip.

Parameters

[out] ReturnStatus return status

Returns: MObject containing the associated source clip.

Status Codes:

MS::kSuccess operation successful
MS::kObjectDoesNotExist this clip does not have an associated source clip
MS::kFailure this function set does not have a valid clip object

double getPreCycle ( MStatus * ReturnStatus = NULL )

Return the value of this clip's pre cycle attribute.

Parameters

[out] ReturnStatus return status

Returns: The value of this clip's pre cycle attribute.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

double getPostCycle ( MStatus * ReturnStatus = NULL )

Return the value of this clip's post cycle attribute.

Parameters

[out] ReturnStatus return status

Returns: The value of this clip's post cycle attribute.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

double getCycle ( MStatus * ReturnStatus = NULL )

This method is obsolete.

Deprecated:: Use the method MFnClip::getPostCycle instead.

Parameters

[out] ReturnStatus return status

Returns: The value of this clip's cycle attribute.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

double getWeight ( MStatus * ReturnStatus = NULL )

Return the value of this clip's weight attribute.

Parameters

[out] ReturnStatus return status

Returns: The value of this clip's weight attribute.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

double getScale ( MStatus * ReturnStatus = NULL )

Return the value of this clip's scale attribute.

Parameters

[out] ReturnStatus return status

Returns: The value of this clip's scale attribute.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

bool getAbsolute ( MStatus * ReturnStatus = NULL )

This method is obsolete.

Deprecated:: Use the method MFnClip::getAbsoluteChannelSettings instead.

Parameters

[out] ReturnStatus return status

Returns: The value of this clip's offset attribute.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

bool getEnabled ( MStatus * ReturnStatus = NULL )

Return the value of this clip's enable attribute.

Parameters

[out] ReturnStatus return status

Returns: The value of this clip's enable attribute.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

MTime getStartFrame ( MStatus * ReturnStatus = NULL )

Return the value of this clip's start frame.

Parameters

[out] ReturnStatus return status

Returns: The value of this clip's start frame.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

MTime getSourceStart ( MStatus * ReturnStatus = NULL )

Return the value of the start frame of this clip's source clip.

The sourceStart and sourceDuration define the region of the animCurve that is treated as the clip.

Parameters

[out] ReturnStatus return status

Returns: The value of this clip's source start frame.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object
MS::kObjectDoesNotExist this clip does not have an associated source clip

MTime getSourceDuration ( MStatus * ReturnStatus = NULL )

Return the value of the start frame of this clip's source duration.

The sourceStart and sourceDuration define the region of the animCurve that is treated as the clip.

Parameters

[out] ReturnStatus return status

Returns: The value of this clip's source duration.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object
MS::kObjectDoesNotExist this clip does not have an associated source clip

MStatus getMemberAnimCurves	(	MObjectArray &	curves,
		MPlugArray &	associatedAttrs
	)

Return two arrays: the first contains the animCurves associated with this clip.

The second contains the character member that is driven by this animCurve.

Parameters

[out]	curves	array to store the result curves
[out]	associatedAttrs	array to store the character members

Returns: Return status

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object
MS::kObjectDoesNotExist this clip does not have an associated source clip

MStatus getAbsoluteChannelSettings ( MIntArray & absoluteChannels )

Return an array indicating which channels of the clip are absolute and which are relative.

The length of the array is equal to the members in the character. A value of one in the array indicates absolute and a value of 0 indicates relative.

Parameters

[out] absoluteChannels array to store the result

Returns: Return status

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

int getTrack ( MStatus * ReturnStatus = NULL )

Return the track number for the clip.

Track indices are one-based. If a track index of zero is returned, it indicates that a track has not yet been assigned to the clip.

Parameters

[out] ReturnStatus return status

Returns: The index of this clip's track

Status Codes:

MS::kSuccess operation successful
MS::kFailure this clip is a source clip and does not have a track
MS::kObjectDoesNotExist this function set does not have a valid clip object

MStatus setPoseClip	(	bool	state,
		MDGModifier *	mod = `NULL`
	)

Specify whether or not this clip node should be tagged as a pose rather than a clip.

By default, clip nodes are not poses.

Parameters

[in]	state	true, to tag the clip as a pose
[in]	mod	modifier to use when calling this method from commands that support undo

Returns: Return status.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

MStatus setPreCycle	(	double	cycle,
		MDGModifier *	mod = `NULL`
	)

Specify the pre cycle value for the clip.

Parameters

[in]	cycle	cycle value
[in]	mod	modifier to use when calling this method from commands that support undo

Returns: Return status.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

MStatus setPostCycle	(	double	cycle,
		MDGModifier *	mod = `NULL`
	)

Specify the post cycle value for the clip.

Parameters

[in]	cycle	cycle value
[in]	mod	modifier to use when calling this method from commands that support undo

Returns: Return status.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

MStatus setCycle	(	double	cycle,
		MDGModifier *	mod = `NULL`
	)

This method is obsolete.

Deprecated:: Use the method MFnClip::setPostCycle instead.

Parameters

[in]	cycle	cycle value
[in]	mod	modifier to use when calling this method from commands that support undo

Returns: Return status.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

MStatus setWeight	(	double	wt,
		MDGModifier *	mod = `NULL`
	)

Specify a weight value for the clip.

Parameters

[in]	wt	weight value
[in]	mod	modifier to use when calling this method from commands that support undo

Returns: Return status.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

MStatus setScale	(	double	scale,
		MDGModifier *	mod = `NULL`
	)

Specify a scale value for the clip.

Parameters

[in]	scale	scale value
[in]	mod	modifier to use when calling this method from commands that support undo

Returns: Return status.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

MStatus setAbsolute	(	bool	abs,
		MDGModifier *	mod = `NULL`
	)

This method is obsolete.

Deprecated:: Use the method MFnClip::setAbsoluteChannelSettings instead.

Parameters

[in]	abs	true if absolute, false if relative
[in]	mod	modifier to use when calling this method from commands that support undo

Returns: Return status.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

MStatus setEnabled	(	bool	val,
		MDGModifier *	mod = `NULL`
	)

Specify whether or not the clip is enabled.

Note: should not be called for source clips since the enabled attribute is ignored on source clips.

Parameters

[in]	val	enable value
[in]	mod	modifier to use when calling this method from commands that support undo

Returns: Return status.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

MStatus setStartFrame	(	const MTime &	start,
		MDGModifier *	mod = `NULL`
	)

Specify the start frame for the instanced clip.

Note: should not be called for source clips since the start frame attribute is ignored on source clips.

Parameters

[in]	start	start frame value
[in]	mod	modifier to use when calling this method from commands that support undo

Returns: Return status.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object

MStatus setSourceData	(	const MTime &	start,
		const MTime &	duration,
		MDGModifier *	mod = `NULL`
	)

Specify the start frame and duration for the source clip associated with this clip.

Parameters

[in]	start	source start frame value
[in]	duration	source duration value
[in]	mod	modifier to use when calling this method from commands that support undo

Returns: Return status.

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object
MS::kObjectDoesNotExist this clip does not have an associated source clip

MStatus setTrack	(	int	trackIndex,
		MDGModifier *	mod = `NULL`
	)

Specify the one-based track number for the clip.

Parameters

[in]	trackIndex	the track number for the clip
[in]	mod	modifier to use when calling this method from commands that support undo

Returns: Return status

Status Codes:

MS::kSuccess operation successful
MS::kFailure this function set does not have a valid clip object
MS::kObjectDoesNotExist clip track value cannot be set

MStatus setAbsoluteChannelSettings	(	const MIntArray &	absoluteChannels,
		MDGModifier *	mod = `NULL`
	)

Set which channels of the clip are absolute and which are relative.

The length of the specified array should be equal to the number of members in the character. A value of one in the array indicates absolute and a value of 0 indicates relative.

Parameters

[in]	absoluteChannels	array containing the absolute channels to be set
[in]	mod	modifier to use when calling this method from commands that support undo

Returns: Return status

Status Codes:

MS::kSuccess operation successful
MS::kObjectDoesNotExist this function set does not have a valid clip object

The documentation for this class was generated from the following files:

MFnClip.h
MFnClip.cpp

MFnClip Class Reference

Class Description

Public Member Functions

Protected Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

Member Function Documentation