Detailed Description

Function set for Air Fields.

Function set for creation, edit, and query of Air Fields.

An air field simulates the effects of moving air.

#include <MFnAirField.h>

Inheritance diagram for MFnAirField:

Public Member Functions
virtual MFn::Type	type () const
	Function set type.
virtual	~MFnAirField ()
	Destructor.
	MFnAirField ()
	Default constructor.
	MFnAirField (MObject &object, MStatus *ReturnStatus=NULL)
	Constructor.
	MFnAirField (const MDagPath &object, MStatus *ret=NULL)
	Constructor.
MVector	direction (MStatus *ReturnStatus=NULL) const
	Returns the direction the air is blowing.
MStatus	setDirection (const MVector &airDirection)
	Sets the direction vector for the air to blow.
double	speed (MStatus *ReturnStatus=NULL) const
	Returns the control setting on how quickly objects match the velocity of the air field.
MStatus	setSpeed (double value)
	Sets the control setting on how quickly the objects match the velocity of the air field.
double	inheritVelocity (MStatus *ReturnStatus=NULL) const
	Returns the amount of the moving air field's velocity that is added to the direction and magnitude of the wind.
MStatus	setInheritVelocity (double velocity)
	Sets the amount of the moving air field's velocity that is added to the direction and magnitude of the wind.
bool	inheritRotation (MStatus *ReturnStatus=NULL) const
	Returns true if the air field is rotating or parented to a rotating object, and will undergo that same rotation.
MStatus	setInheritRotation (bool enable)
	Enables the air field to undergo rotations and effect the direction that the air field points.
bool	componentOnly (MStatus *ReturnStatus=NULL) const
	Returns true if the air field will apply force only in the direction specified by the combination of its direction, speed, and inherit velocity attributes.
MStatus	setComponentOnly (bool enable)
	Enables the air field to apply force specified as a combination of its direction, speed, and inherit veloicty attributes.
double	spread (MStatus *ReturnStatus=NULL) const
	Returns a value that represents an angle which objects are affected by the air fields direction setting.
MStatus	setSpread (double value)
	Sets the value representing an angle which objects are affected by the air fields direction setting.
bool	enableSpread (MStatus *ReturnStatus=NULL) const
	Returns true if the air field is using the spread angle to define the influence of the air field.
MStatus	setEnableSpread (bool enable)
	Enables the air field to influence objects based on the spread angle setting.
	MFnAirField (const MObject &object, MStatus *ret=NULL)
	Constructor.
Protected Member Functions
virtual const char *	className () const
	Class name. Search for all occurrences

Constructor & Destructor Documentation

~MFnAirField ( ) [virtual]

Destructor.

Class destructor.

MFnAirField	(	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

MFnAirField	(	const MDagPath &	object,
		MStatus *	ReturnStatus = `NULL`
	)

Constructor.

Class constructor that initializes the function set to the given constant MDagPath object.

Parameters:

[in]	object	The const MDagPath 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

MFnAirField	(	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]

Search for all occurrences

Function set type.

Return the class type : MFn::kAir.

Reimplemented from MFnField.

MVector direction ( MStatus * ReturnStatus = NULL ) const

Search for all occurrences

Returns the direction the air is blowing.

Parameters:

[out] ReturnStatus Status code

Returns:: A vector representing direction.

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

MStatus setDirection ( const MVector & airDirection )

Search for all occurrences

Sets the direction vector for the air to blow.

Parameters:

[in] airDirection A vector representing direction.

Returns:: Status code

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

double speed ( MStatus * ReturnStatus = NULL ) const

Search for all occurrences

Returns the control setting on how quickly objects match the velocity of the air field.

Parameters:

[out] ReturnStatus Status code

Returns:: The value of the speed setting.

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

MStatus setSpeed ( double value )

Search for all occurrences

Sets the control setting on how quickly the objects match the velocity of the air field.

Parameters:

[in]

value

A value representing speed.

A value of 0 is equivalent of turning the air field off.
A value of 1 and objects will match the velocity almost instantaneously.

Returns:: Status code

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

double inheritVelocity ( MStatus * ReturnStatus = NULL ) const

Search for all occurrences

Returns the amount of the moving air field's velocity that is added to the direction and magnitude of the wind.

Parameters:

[out] ReturnStatus Status code

Returns:: A value from 0 to 1 representing the amount of velocity added.

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

MStatus setInheritVelocity ( double velocity )

Search for all occurrences

Sets the amount of the moving air field's velocity that is added to the direction and magnitude of the wind.

Parameters:

[in] velocity A value from 0 to 1 representing the amount of velocity that is added.

Returns:: Status code

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

bool inheritRotation ( MStatus * ReturnStatus = NULL ) const

Search for all occurrences

Returns true if the air field is rotating or parented to a rotating object, and will undergo that same rotation.

Parameters:

[out] ReturnStatus Status code

Returns:

true Rotations will change the direction the air field points.
false Rotations do not change the air field direction.

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

MStatus setInheritRotation ( bool enable )

Search for all occurrences

Enables the air field to undergo rotations and effect the direction that the air field points.

Parameters:

[in] enable Flag to enable or disable rotations effects.

Returns:: Status code

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

bool componentOnly ( MStatus * ReturnStatus = NULL ) const

Search for all occurrences

Returns true if the air field will apply force only in the direction specified by the combination of its direction, speed, and inherit velocity attributes.

Returns false if the force is made to effect the object's velocity to match the air field's velocity.

Parameters:

[out] ReturnStatus Status code

Returns:

true Force applied only in direction of attributes.
false Force applied to match velocities.

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

MStatus setComponentOnly ( bool enable )

Search for all occurrences

Enables the air field to apply force specified as a combination of its direction, speed, and inherit veloicty attributes.

Parameters:

[in] enable Flag to enable or disable combination of attributes.

Returns:: Status code

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

double spread ( MStatus * ReturnStatus = NULL ) const

Search for all occurrences

Returns a value that represents an angle which objects are affected by the air fields direction setting.

This value is taken into account when the Enable Spread attribute is turned on.

Parameters:

[out] ReturnStatus Status code

Returns:

A value from 0 to 1 representing an angle.
A value of 0 effects objects only exactly in front of the direction vector.
A value of 1 effects objects in front by 180 degrees along the direction vector.

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

MStatus setSpread ( double value )

Search for all occurrences

Sets the value representing an angle which objects are affected by the air fields direction setting.

This value is taken into account when the Enable Spread attribute is turned on.

Parameters:

[in]

value

A value representing an angle.

A value of 0 effects objects only exactly in front of the direction vector.
A value of 1 effects objects in front by 180 degrees along the direction vector.

Returns:: Status code

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

bool enableSpread ( MStatus * ReturnStatus = NULL ) const

Search for all occurrences

Returns true if the air field is using the spread angle to define the influence of the air field.

Parameters:

[out] ReturnStatus Status code

Returns:

true Objects are affected in the area of the spread angle.
false Objects are affected by the max distance setting.

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

MStatus setEnableSpread ( bool enable )

Search for all occurrences

Enables the air field to influence objects based on the spread angle setting.

Parameters:

[in] enable Flag to enable or disable use of the spread angle.

Returns:: Status code

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

MFnAirField Class Reference

OpenMayaFX - API module for effects | FunctionSet classes

Detailed Description

Public Member Functions

Protected Member Functions

Constructor & Destructor Documentation

Member Function Documentation