#include <MFnFloatArrayData.h>

Class Description

float array function set for dependency node data.

MFnFloatArrayData allows the creation and manipulation of MFloatArray data objects for use in the dependency graph.

If a user written dependency node either accepts or produces MFloatArrays, then this class is used to extract or create the data that comes from or goes to other dependency graph nodes. The MDataHandle::type() method will return kFloatArray when data of this type is present. To access it, the MDataHandle::data() method is used to get an MObject for the data and this should then be used to initialize an instance of MFnFloatArrayData.

Examples:: AbcExport/AttributesWriter.cpp, and AbcImport/NodeIteratorVisitorHelper.cpp.

Inheritance diagram for MFnFloatArrayData:

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

virtual	~MFnFloatArrayData ()
	Destructor.

	MFnFloatArrayData ()
	Default constructor.

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

unsigned int	length (MStatus *ReturnStatus=NULL) const
	Return the number of floats in the instance. More...

float	operator[] (unsigned int index) const
	Extract the indicated float from the const instance. More...

MStatus	set (float element, unsigned int index)
	Set the float array element at the specified index. More...

MStatus	copyTo (MFloatArray &) const
	Copy all the floats in the instance into the given MFloatArray. More...

MStatus	set (const MFloatArray &newArray)
	Set the instance to contain the floats defined in the given MFloatArray. More...

MFloatArray	array (MStatus *ReturnStatus=NULL)
	Return an MFloatArray containing the float array currently operated upon by the function set. More...

MObject	create (MStatus *ReturnStatus=NULL)
	Create a new float array data object, initialize it to be empty, and attach it to this instance. More...

MObject	create (const MFloatArray &in, MStatus *ReturnStatus=NULL)
	Create a new float array data object, initialize it to contain the data from the given MDoubleArray, and attach it to this instance. More...

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

float &	operator[] (unsigned int index)
	NO SCRIPT SUPPORT. More...

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

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

	MFnData ()
	Default class constructor.

	MFnData (const MObject &object, MStatus *ReturnStatus=NULL)
	Constructor. 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 MFnData
enum	Type { kInvalid, kNumeric, kPlugin, kPluginGeometry, kString, kMatrix, kStringArray, kDoubleArray, kFloatArray, kIntArray, kPointArray, kVectorArray, kMatrixArray, kComponentList, kMesh, kLattice, kNurbsCurve, kNurbsSurface, kSphere, kDynArrayAttrs, kDynSweptGeometry, kSubdSurface, kNObject, kNId, kAny, kLast }
	Types of dependency graph data. More...

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

Constructor & Destructor Documentation

MFnFloatArrayData	(	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

MFnFloatArrayData	(	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::kFloatArrayData.

Reimplemented from MFnData.

OPENMAYA_MAJOR_NAMESPACE_OPEN const char * className ( ) const

protectedvirtual

Class name.

Return the class name : "MFnFloatArrayData".

Reimplemented from MFnData.

unsigned int length ( MStatus * ReturnStatus = NULL ) const

Return the number of floats in the instance.

Parameters

[out] ReturnStatus kFailure if the instance is not attached to an MObject, and kSuccess otherwise.

Returns: The number of floats in the instance

Examples:: AbcExport/AttributesWriter.cpp.

float operator[] ( unsigned int index ) const

Extract the indicated float from the const instance.

No checking is done by this class to ensure that the index is valid - use the length method to determine the size of the array. If the instance is not attached to an MObject, this method will return a float containing zero.

Parameters

[in] index the index of the float to extract

Returns: The indicated float

MStatus set	(	float	element,
		unsigned int	index
	)

Set the float array element at the specified index.

The index must be valid for the array.

Parameters

[in]	element	the element to set at the specified index
[in]	index	the index of the float to set

Returns

kSuccess operation successful
kFailure instance is not attached to an MObject

MStatus copyTo ( MFloatArray & dest ) const

Copy all the floats in the instance into the given MFloatArray.

Parameters

[out] dest the MFloatArray to populate

Returns

kSuccess operation successful
kFailure instance is not attached to an MObject

MStatus set ( const MFloatArray & array )

Set the instance to contain the floats defined in the given MFloatArray.

Parameters

[in] array the MFloatArray containing the data to set into this instance

Returns

kSuccess operation successful
kFailure instance is not attached to an MObject

MFloatArray array ( MStatus * ReturnStatus = NULL )

Return an MFloatArray containing the float array currently operated upon by the function set.

The MFloatArray returned by this method is editable, so any changes to the return instance also affects the MObject operated upon by this function set.

Parameters

[out] ReturnStatus kFailure if the instance is not attached to an MObject, and kSuccess otherwise.

Returns: A copy of the MFloatArray held in this instance

MObject create ( MStatus * ReturnStatus = NULL )

Create a new float array data object, initialize it to be empty, and attach it to this instance.

Parameters

[out] ReturnStatus kSuccess

Returns: MObject referring to the newly created float array data object

Examples:: AbcImport/NodeIteratorVisitorHelper.cpp.

MObject create	(	const MFloatArray &	arr,
		MStatus *	ReturnStatus = `NULL`
	)

Create a new float array data object, initialize it to contain the data from the given MDoubleArray, and attach it to this instance.

Parameters

[in]	arr	the data to use when initializing this instance
[out]	ReturnStatus	kSuccess

Returns: MObject referring to the newly created float array data object

float & operator[] ( unsigned int index )

NO SCRIPT SUPPORT.

Extract the indicated float from the instance.

The float returned by this method is editable, so any changes to the return instance also affect the MObject operated upon by this function set.

No checking is done by this class to ensure that the index is valid - use the length method to determine the size of the array. If the instance is not attached to an MObject, this method will return a reference to a dummy value.

Parameters

[in] index the index of the float to extract

Returns: The indicated float

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

MFnFloatArrayData.h
MFnFloatArrayData.cpp

MFnFloatArrayData Class Reference

Class Description

Public Member Functions

Protected Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

Member Function Documentation