MFnNumericData Class Reference
[OpenMaya - API module for common classes, FunctionSet classes]

#include <MFnNumericData.h>

Inheritance diagram for MFnNumericData:

[legend]

Collaboration diagram for MFnNumericData:

[legend]

List of all members.

---

Detailed Description

Numeric data function set.

MFnNumericData allows the creation and manipulation of numeric data objects for use in the dependency graph. Normally, data objects are not required for the transmission of numeric data. The graph supports numeric types directly (see the methods of MDataHandle).

Numeric data objects are useful if you have an attribute that accepts generic data. A generic attribute can accept multiple types of data, so you cannot hardwire it to accept a specific type of numeric data. So, generic attributes can only accept numeric data in the form of actual data objects.

This function set only supports pairs and triples of numeric data.

Examples:

apiMeshShape.cpp, blindDataShader.cpp, cgfxAttrDef.cpp, componentScaleManip.cpp, curvedArrowsNode.cpp, D3DViewportRenderer.cpp, footPrintManip.cpp, genericAttributeNode.cpp, geometrySurfaceConstraint.cpp, GLSLShaderNode.cpp, hwAnisotropicShader_NV20.cpp, hwDecalBumpShader_NV20.cpp, hwReflectBumpShader_NV20.cpp, hwToonShader_NV20.cpp, hwUnlitShader.cpp, pnTrianglesNode.cpp, polyModifierCmd.cpp, renderAccessNode.cpp, rotateManip.cpp, surfaceBumpManip.cpp, and swissArmyManip.cpp.

Public Types
enum	Type {   kInvalid, kBoolean, kByte, kChar,   kShort, k2Short, k3Short, kLong,   kInt = kLong, k2Long, k2Int = k2Long, k3Long,   k3Int = k3Long, kFloat, k2Float, k3Float,   kDouble, k2Double, k3Double, k4Double,   kAddr, kLast }
	Supported numerical types. More...
Public Member Functions
virtual MFn::Type	type () const
	Function set type.
virtual	~MFnNumericData ()
	Destructor.
	MFnNumericData ()
	Default constructor.
	MFnNumericData (MObject &object, MStatus *ReturnStatus=NULL)
	Constructor.
MObject	create (Type dataType, MStatus *ReturnStatus=NULL)
Type	numericType (MStatus *ReturnStatus=NULL)
MStatus	getData (short &val1, short &val2)
	NO SCRIPT SUPPORT.
MStatus	getData (int &val1, int &val2)
	NO SCRIPT SUPPORT.
MStatus	getData (float &val1, float &val2)
	NO SCRIPT SUPPORT.
MStatus	getData (double &val1, double &val2)
	NO SCRIPT SUPPORT.
MStatus	getData (short &val1, short &val2, short &val3)
	NO SCRIPT SUPPORT.
MStatus	getData (int &val1, int &val2, int &val3)
	NO SCRIPT SUPPORT.
MStatus	getData (float &val1, float &val2, float &val3)
	NO SCRIPT SUPPORT.
MStatus	getData (double &val1, double &val2, double &val3)
	NO SCRIPT SUPPORT.
MStatus	getData (double &val1, double &val2, double &val3, double &val4)
	NO SCRIPT SUPPORT.
MStatus	setData (short val1, short val2)
	NO SCRIPT SUPPORT.
MStatus	setData (int val1, int val2)
	NO SCRIPT SUPPORT.
MStatus	setData (float val1, float val2)
	NO SCRIPT SUPPORT.
MStatus	setData (double val1, double val2)
	NO SCRIPT SUPPORT.
MStatus	setData (short val1, short val2, short val3)
	NO SCRIPT SUPPORT.
MStatus	setData (int val1, int val2, int val3)
	NO SCRIPT SUPPORT.
MStatus	setData (float val1, float val2, float val3)
	NO SCRIPT SUPPORT.
MStatus	setData (double val1, double val2, double val3)
	NO SCRIPT SUPPORT.
MStatus	setData (double val1, double val2, double val3, double val4)
	NO SCRIPT SUPPORT.
	MFnNumericData (const MObject &object, MStatus *ReturnStatus=NULL)
	NO SCRIPT SUPPORT.
MStatus	getData2Short (short &val1, short &val2)
MStatus	getData2Int (int &val1, int &val2)
MStatus	getData2Float (float &val1, float &val2)
MStatus	getData2Double (double &val1, double &val2)
MStatus	getData3Short (short &val1, short &val2, short &val3)
MStatus	getData3Int (int &val1, int &val2, int &val3)
MStatus	getData3Float (float &val1, float &val2, float &val3)
MStatus	getData3Double (double &val1, double &val2, double &val3)
MStatus	getData4Double (double &val1, double &val2, double &val3, double &val4)
MStatus	setData2Short (short val1, short val2)
MStatus	setData2Int (int val1, int val2)
MStatus	setData2Float (float val1, float val2)
MStatus	setData2Double (double val1, double val2)
MStatus	setData3Short (short val1, short val2, short val3)
MStatus	setData3Int (int val1, int val2, int val3)
MStatus	setData3Float (float val1, float val2, float val3)
MStatus	setData3Double (double val1, double val2, double val3)
MStatus	setData4Double (double val1, double val2, double val3, double val4)
Protected Member Functions
virtual const char *	className () const
	Class name.

---

Member Enumeration Documentation

enum MFnNumericData::Type

Supported numerical types.

Enumerator:

kInvalid	Invalid data.
kBoolean	Boolean.
kByte	One byte.
kChar	One character.
kShort	One short.
k2Short	Two shorts.
k3Short	Three shorts.
kLong	One long. Same as int since "long" is not platform-consistent.
kInt	One int.
k2Long	Two longs. Same as 2 ints since "long" is not platform-consistent.
k2Int	Two ints.
k3Long	Three longs. Same as 3 ints since "long" is not platform-consistent.
k3Int	Three ints.
kFloat	One float.
k2Float	Two floats.
k3Float	Three floats.
kDouble	One double.
k2Double	Two doubles.
k3Double	Three doubles.
k4Double	Four doubles.
kAddr	An address.
kLast	Last value. Does not represent a real type, but can be used to loop on all possible types.

Reimplemented from MFnData.

---

Constructor & Destructor Documentation

MFnNumericData::MFnNumericData	(	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

MFnNumericData::MFnNumericData	(	const MObject &	object,
		MStatus *	ReturnStatus = NULL
	)

NO SCRIPT SUPPORT.

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 MFnNumericData::type

(

)

const [virtual]

Function set type.

Return the class type : MFn::kNumericData

Reimplemented from MFnData.

const char * MFnNumericData::className

(

)

const [protected, virtual]

Class name.

Return the class name : "MFnNumericData"

Reimplemented from MFnData.

MObject MFnNumericData::create	(	Type	dataType,
		MStatus *	ReturnStatus = NULL
	)

Creates a new data object of the given type. Only pair and triples of numeric data may be created (eg k3Float).

Parameters:

[in]	dataType	data type of object to create
[out]	ReturnStatus	return status

Returns:

A pointer to the new object

Status Codes:

• kSuccess operation successful
• kInvalidParameter cannot create an object of the given type
• kInsufficientMemory out of memory

Examples:

cgfxAttrDef.cpp, componentScaleManip.cpp, footPrintManip.cpp, genericAttributeNode.cpp, geometrySurfaceConstraint.cpp, polyModifierCmd.cpp, rotateManip.cpp, surfaceBumpManip.cpp, and swissArmyManip.cpp.

MFnNumericData::Type MFnNumericData::numericType

(

MStatus *

ReturnStatus = NULL

)

Returns the type of the numeric data object.

Parameters:

[out]

ReturnStatus

return status

Returns:

Type of data

Status Codes:

• kSuccess operation successful
• kFailure function set has no object

MStatus MFnNumericData::getData	(	short &	val1,
		short &	val2
	)

NO SCRIPT SUPPORT.

Gets the stored value of this data object as a pair of short integers. The data object must have been created as a pair of short integers for this to succeed.

Parameters:

[out]	val1	storage for the first element
[out]	val2	storage for the second element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a pair of short integers, or function set has no object

Examples:

apiMeshShape.cpp.

MStatus MFnNumericData::getData	(	int &	val1,
		int &	val2
	)

NO SCRIPT SUPPORT.

Gets the stored value of this data object as a pair of int integers. The data object must have been created as a pair of int integers for this to succeed.

Parameters:

[out]	val1	storage for the first element
[out]	val2	storage for the second element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a pair of int integers, or function set has no object

MStatus MFnNumericData::getData	(	float &	val1,
		float &	val2
	)

NO SCRIPT SUPPORT.

Gets the stored value of this data object as a pair of floats. The data object must have been created as a pair of floats for this to succeed.

Parameters:

[out]	val1	storage for the first element
[out]	val2	storage for the second element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a pair of floats, or function set has no object

MStatus MFnNumericData::getData	(	double &	val1,
		double &	val2
	)

NO SCRIPT SUPPORT.

Gets the stored value of this data object as a pair of doubles. The data object must have been created as a pair of doubles for this to succeed.

Parameters:

[out]	val1	storage for the first element
[out]	val2	storage for the second element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a pair of doubles, or function set has no object

MStatus MFnNumericData::getData	(	short &	val1,
		short &	val2,
		short &	val3
	)

NO SCRIPT SUPPORT.

Gets the stored value of this data object as a triple of short integers. The data object must have been created as a pair of short integers for this to succeed.

Parameters:

[out]	val1	storage for the first element
[out]	val2	storage for the second element
[out]	val3	storage for the third element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a triple of short integers, or function set has no object

MStatus MFnNumericData::getData	(	int &	val1,
		int &	val2,
		int &	val3
	)

NO SCRIPT SUPPORT.

Gets the stored value of this data object as a triple of int integers. The data object must have been created as a triple of int integers for this to succeed.

Parameters:

[out]	val1	storage for the first element
[out]	val2	storage for the second element
[out]	val3	storage for the third element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a triple of int integers, or function set has no object

MStatus MFnNumericData::getData	(	float &	val1,
		float &	val2,
		float &	val3
	)

NO SCRIPT SUPPORT.

Gets the stored value of this data object as a triple of floats. The data object must have been created as a triple of floats for this to succeed.

Parameters:

[out]	val1	storage for the first element
[out]	val2	storage for the second element
[out]	val3	storage for the third element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a triple of floats, or function set has no object

MStatus MFnNumericData::getData	(	double &	val1,
		double &	val2,
		double &	val3
	)

NO SCRIPT SUPPORT.

Gets the stored value of this data object as a triple of doubles. The data object must have been created as a triple of doubles for this to succeed.

Parameters:

[out]	val1	storage for the first element
[out]	val2	storage for the second element
[out]	val3	storage for the third element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a triple of doubles, or function set has no object

MStatus MFnNumericData::getData	(	double &	val1,
		double &	val2,
		double &	val3,
		double &	val4
	)

NO SCRIPT SUPPORT.

Gets the stored value of this data object as a quadruple of doubles. The data object must have been created as a quadruple of doubles for this to succeed.

Parameters:

[out]	val1	storage for the first element
[out]	val2	storage for the second element
[out]	val3	storage for the third element
[out]	val4	storage for the fourth element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a quadruple of doubles, or function set has no object

MStatus MFnNumericData::setData	(	short	val1,
		short	val2
	)

NO SCRIPT SUPPORT.

Sets the stored value of this data object as a pair of short integers. The data object must have been created as a pair of short integers for this to succeed.

Parameters:

[in]	val1	the first element
[in]	val2	the second element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a pair of short integers, or function set has no object

Examples:

cgfxAttrDef.cpp, componentScaleManip.cpp, footPrintManip.cpp, genericAttributeNode.cpp, polyModifierCmd.cpp, rotateManip.cpp, surfaceBumpManip.cpp, and swissArmyManip.cpp.

MStatus MFnNumericData::setData	(	int	val1,
		int	val2
	)

NO SCRIPT SUPPORT.

Sets the stored value of this data object as a pair of int integers. The data object must have been created as a pair of int integers for this to succeed.

Parameters:

[in]	val1	the first element
[in]	val2	the second element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a pair of int integers, or function set has no object

MStatus MFnNumericData::setData	(	float	val1,
		float	val2
	)

NO SCRIPT SUPPORT.

Sets the stored value of this data object as a pair of floats. The data object must have been created as a pair of floats for this to succeed.

Parameters:

[in]	val1	the first element
[in]	val2	the second element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a pair of floats, or function set has no object

MStatus MFnNumericData::setData	(	double	val1,
		double	val2
	)

NO SCRIPT SUPPORT.

Sets the stored value of this data object as a pair of doubles. The data object must have been created as a pair of doubles for this to succeed.

Parameters:

[in]	val1	the first element
[in]	val2	the second element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kDataIsNotOfThatType data is not a pair of doubles
• kObjectDoesNotExist function set has no object

MStatus MFnNumericData::setData	(	short	val1,
		short	val2,
		short	val3
	)

NO SCRIPT SUPPORT.

Sets the stored value of this data object as a triple of short integers. The data object must have been created as a triple of short integers for this to succeed.

Parameters:

[in]	val1	the first element
[in]	val2	the second element
[in]	val3	the third element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a pair of doubles, or function set has no object

MStatus MFnNumericData::setData	(	int	val1,
		int	val2,
		int	val3
	)

NO SCRIPT SUPPORT.

Sets the stored value of this data object as a triple of int integers. The data object must have been created as a triple of int integers for this to succeed.

Parameters:

[in]	val1	the first element
[in]	val2	the second element
[in]	val3	the third element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a triple of int integers, or function set has no object

MStatus MFnNumericData::setData	(	float	val1,
		float	val2,
		float	val3
	)

NO SCRIPT SUPPORT.

Sets the stored value of this data object as a triple of floats. The data object must have been created as a triple of floats for this to succeed.

Parameters:

[in]	val1	the first element
[in]	val2	the second element
[in]	val3	the third element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a triple of floats, or function set has no object

MStatus MFnNumericData::setData	(	double	val1,
		double	val2,
		double	val3
	)

NO SCRIPT SUPPORT.

Sets the stored value of this data object as a triple of doubles. The data object must have been created as a triple of doubles for this to succeed.

Parameters:

[in]	val1	the first element
[in]	val2	the second element
[in]	val3	the third element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a triple of doubles, or function set has no object

MStatus MFnNumericData::setData	(	double	val1,
		double	val2,
		double	val3,
		double	val4
	)

NO SCRIPT SUPPORT.

Sets the stored value of this data object as a quadruple of doubles. The data object must have been created as a quadruple of doubles for this to succeed.

Parameters:

[in]	val1	the first element
[in]	val2	the second element
[in]	val3	the third element
[in]	val4	the fourth element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a triple of doubles, or function set has no object

MStatus MFnNumericData::getData2Short	(	short &	val1,
		short &	val2
	)

Gets the stored value of this data object as a pair of short integers. The data object must have been created as a pair of short integers for this to succeed.

Parameters:

[out]	val1	storage for the first element
[out]	val2	storage for the second element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a pair of short integers, or function set has no object

MStatus MFnNumericData::getData2Int	(	int &	val1,
		int &	val2
	)

Gets the stored value of this data object as a pair of int integers. The data object must have been created as a pair of int integers for this to succeed.

Parameters:

[out]	val1	storage for the first element
[out]	val2	storage for the second element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a pair of int integers, or function set has no object

MStatus MFnNumericData::getData2Float	(	float &	val1,
		float &	val2
	)

Gets the stored value of this data object as a pair of floats. The data object must have been created as a pair of floats for this to succeed.

Parameters:

[out]	val1	storage for the first element
[out]	val2	storage for the second element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a pair of floats, or function set has no object

MStatus MFnNumericData::getData2Double	(	double &	val1,
		double &	val2
	)

Gets the stored value of this data object as a pair of doubles. The data object must have been created as a pair of doubles for this to succeed.

Parameters:

[out]	val1	storage for the first element
[out]	val2	storage for the second element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a pair of doubles, or function set has no object

MStatus MFnNumericData::getData3Short	(	short &	val1,
		short &	val2,
		short &	val3
	)

Gets the stored value of this data object as a triple of short integers. The data object must have been created as a pair of short integers for this to succeed.

Parameters:

[out]	val1	storage for the first element
[out]	val2	storage for the second element
[out]	val3	storage for the third element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a triple of short integers, or function set has no object

MStatus MFnNumericData::getData3Int	(	int &	val1,
		int &	val2,
		int &	val3
	)

Gets the stored value of this data object as a triple of int integers. The data object must have been created as a triple of int integers for this to succeed.

Parameters:

[out]	val1	storage for the first element
[out]	val2	storage for the second element
[out]	val3	storage for the third element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a triple of int integers, or function set has no object

MStatus MFnNumericData::getData3Float	(	float &	val1,
		float &	val2,
		float &	val3
	)

Gets the stored value of this data object as a triple of floats. The data object must have been created as a triple of floats for this to succeed.

Parameters:

[out]	val1	storage for the first element
[out]	val2	storage for the second element
[out]	val3	storage for the third element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a triple of floats, or function set has no object

MStatus MFnNumericData::getData3Double	(	double &	val1,
		double &	val2,
		double &	val3
	)

Gets the stored value of this data object as a triple of doubles. The data object must have been created as a triple of doubles for this to succeed.

Parameters:

[out]	val1	storage for the first element
[out]	val2	storage for the second element
[out]	val3	storage for the third element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a triple of doubles, or function set has no object

MStatus MFnNumericData::getData4Double	(	double &	val1,
		double &	val2,
		double &	val3,
		double &	val4
	)

Gets the stored value of this data object as a quadruple of doubles. The data object must have been created as a quadruple of doubles for this to succeed.

Parameters:

[out]	val1	storage for the first element
[out]	val2	storage for the second element
[out]	val3	storage for the third element
[out]	val4	storage for the fourth element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a quadruple of doubles, or function set has no object

MStatus MFnNumericData::setData2Short	(	short	val1,
		short	val2
	)

Sets the stored value of this data object as a pair of short integers. The data object must have been created as a pair of short integers for this to succeed.

Parameters:

[in]	val1	the first element
[in]	val2	the second element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a pair of short integers, or function set has no object

MStatus MFnNumericData::setData2Int	(	int	val1,
		int	val2
	)

Sets the stored value of this data object as a pair of int integers. The data object must have been created as a pair of int integers for this to succeed.

Parameters:

[in]	val1	the first element
[in]	val2	the second element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a pair of int integers, or function set has no object

MStatus MFnNumericData::setData2Float	(	float	val1,
		float	val2
	)

Sets the stored value of this data object as a pair of floats. The data object must have been created as a pair of floats for this to succeed.

Parameters:

[in]	val1	the first element
[in]	val2	the second element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a pair of floats, or function set has no object

MStatus MFnNumericData::setData2Double	(	double	val1,
		double	val2
	)

Sets the stored value of this data object as a pair of doubles. The data object must have been created as a pair of doubles for this to succeed.

Parameters:

[in]	val1	the first element
[in]	val2	the second element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kDataIsNotOfThatType data is not a pair of doubles
• kObjectDoesNotExist function set has no object

MStatus MFnNumericData::setData3Short	(	short	val1,
		short	val2,
		short	val3
	)

Sets the stored value of this data object as a triple of short integers. The data object must have been created as a triple of short integers for this to succeed.

Parameters:

[in]	val1	the first element
[in]	val2	the second element
[in]	val3	the third element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a pair of doubles, or function set has no object

MStatus MFnNumericData::setData3Int	(	int	val1,
		int	val2,
		int	val3
	)

Sets the stored value of this data object as a triple of int integers. The data object must have been created as a triple of int integers for this to succeed.

Parameters:

[in]	val1	the first element
[in]	val2	the second element
[in]	val3	the third element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a triple of int integers, or function set has no object

MStatus MFnNumericData::setData3Float	(	float	val1,
		float	val2,
		float	val3
	)

Sets the stored value of this data object as a triple of floats. The data object must have been created as a triple of floats for this to succeed.

Parameters:

[in]	val1	the first element
[in]	val2	the second element
[in]	val3	the third element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a triple of floats, or function set has no object

MStatus MFnNumericData::setData3Double	(	double	val1,
		double	val2,
		double	val3
	)

Sets the stored value of this data object as a triple of doubles. The data object must have been created as a triple of doubles for this to succeed.

Parameters:

[in]	val1	the first element
[in]	val2	the second element
[in]	val3	the third element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a triple of doubles, or function set has no object

Examples:

geometrySurfaceConstraint.cpp.

MStatus MFnNumericData::setData4Double	(	double	val1,
		double	val2,
		double	val3,
		double	val4
	)

Sets the stored value of this data object as a quadruple of doubles. The data object must have been created as a quadruple of doubles for this to succeed.

Parameters:

[in]	val1	the first element
[in]	val2	the second element
[in]	val3	the third element
[in]	val4	the fourth element

Returns:

Return status

Status Codes:

• kSuccess operation successful
• kFailure data is not a triple of doubles, or function set has no object