#include <MFnPointArrayData.h>

Class Description

Point array function set for dependency node data.

MFnPointArrayData allows the creation and manipulation of MPointArray data objects for use in the dependency graph.

If a user written dependency node either accepts or produces MPointArrays, 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 kPointArray 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 MFnPointArrayData.

Examples:: AbcBullet/AttributesWriter.cpp, AbcExport/AttributesWriter.cpp, AbcImport/NodeIteratorVisitorHelper.cpp, basicBlendShape/basicBlendShape.cpp, and cvColorNode/cvColorNode.cpp.

Inheritance diagram for MFnPointArrayData:

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

virtual	~MFnPointArrayData ()
	Destructor.

	MFnPointArrayData ()
	Default constructor.

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

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

MStatus	set (MPoint &element, unsigned int index)
	Set the point element at the specified index. More...

MStatus	copyTo (MPointArray &) const
	Copy all the points in the instance into the given MPointArray. More...

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

MPointArray	array (MStatus *ReturnStatus=NULL)
	Get an MPointArray containing the points stored in this instance. More...

MObject	create (MStatus *ReturnStatus=NULL)
	Create a new MObject, attach it to this instance, and initialize it to contain no points. More...

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

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

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

const MPoint &	operator[] (unsigned int index) const
	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

MFnPointArrayData	(	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

MFnPointArrayData	(	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::kPointArrayData.

Reimplemented from MFnData.

const char * className ( ) const

protectedvirtual

Class name.

Return the class name : "MFnPointArrayData".

Reimplemented from MFnData.

unsigned int length ( MStatus * ReturnStatus = NULL ) const

Return the number of points in the instance.

Parameters

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

Returns: The number of points in the instance

Examples:: AbcBullet/AttributesWriter.cpp, and AbcExport/AttributesWriter.cpp.

MStatus set	(	MPoint &	element,
		unsigned int	index
	)

Set the point element at the specified index.

Parameters

[in]	element	the element to be set
[in]	index	the index of the MPoint to set

Returns

kSuccess operation successful
kFailure instance is not attached to an MObject

MStatus copyTo ( MPointArray & dest ) const

Copy all the points in the instance into the given MPointArray.

No checking is done by this class on sizes, so it is up to the user to ensure that the given MPointArray is large enough to hold the number of MPoints in the instance.

Parameters

[out] dest the MPointArray to populate

Returns

kSuccess operation successful
kFailure instance is not attached to an MObject

MStatus set ( const MPointArray & array )

Set the instance to contain the points defined in the given MPointArray.

Parameters

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

Returns

kSuccess operation successful
kFailure instance is not attached to an MObject

MPointArray array ( MStatus * ReturnStatus = NULL )

Get an MPointArray containing the points stored in this instance.

The MPointArray 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 MPointArray held in this instance

Examples:: basicBlendShape/basicBlendShape.cpp.

MObject create ( MStatus * ReturnStatus = NULL )

Create a new MObject, attach it to this instance, and initialize it to contain no points.

Parameters

[out] ReturnStatus kSuccess

Returns: The newly created MObject

Examples:: AbcImport/NodeIteratorVisitorHelper.cpp, and cvColorNode/cvColorNode.cpp.

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

Create a new MObject, attach it to this instance, and initialize it to contain the data from the given MPointArray.

Parameters

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

Returns: The newly created MObject

MPoint & operator[] ( unsigned int index )

NO SCRIPT SUPPORT.

Extract the indicated MPoint from the instance.

The MPoint returned by this method is editable, so any changes to the return instance also affects 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 an MPoint containing (0.0, 0.0, 0.0, 1.0).

Parameters

[in] index the index of the MPoint to extract

Returns: The indicated MPoint

const MPoint & operator[] ( unsigned int index ) const

NO SCRIPT SUPPORT.

Extract the indicated MPoint 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 an MPoint containing (0.0, 0.0, 0.0, 1.0).

Parameters

[in] index the index of the MPoint to extract

Returns: The indicated MPoint

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

MFnPointArrayData.h
MFnPointArrayData.cpp

MFnPointArrayData Class Reference

Class Description

Public Member Functions

Protected Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

Member Function Documentation