The Folder class offers a way to create a hierarchy of connections and sub-folders More...

Inheritance diagram for NXOpen.CAE.Connections.Folder:

Public Member Functions
unsafe void	AddFolder (NXOpen.CAE.Connections.Folder subfolder)
	Add a subfolder to this folder. More...

unsafe NXOpen.CAE.Connections.IConnection	CreateConnection (NXOpen.CAE.Connections.ConnectionType type, string name)
	Create a CAE.Connections.IConnection in this folder of the specified type with the specified name More...

unsafe NXOpen.CAE.Connections.Folder	CreateFolder (string name)
	Creates a CAE.Connections.Folder in this folder with the specified name More...

unsafe NXOpen.CAE.Connections.SpotWeld[]	CreateSpotWeldConnectionFromWcdFile (string file, string matfile, NXOpen.CAE.Connections.ConnectionDBItemData pDbData)
	Create CAE.Connections.SpotWeld connections in the current CAE.Connections.Folder using connection data imported from a WCD file. More...

unsafe void	DeleteObjects (NXOpen.NXObject[] objects)
	Delete CAE.Connections.IConnection or CAE.Connections.Folder instances. More...

unsafe NXOpen.CAE.Connections.IConnection[]	DetectConnections (NXOpen.CAE.CaeDataContainer propertyList)
	Create CAE.Connections.IConnection connections in the current CAE.Connections.Folder using connection auto detect. More...

unsafe void	ExportConnectionsToXMcf (NXOpen.CAE.Connections.IConnection[] connections, NXOpen.CAE.CaeDataContainer propertyList)
	Export CAE.Connections.IConnection connections in the current CAE.Connections.Folder to a xMCF file. More...

unsafe NXOpen.CAE.Connections.IConnection[]	GetAllConnections ()
	Get all the connections under this folder and its descendant folders More...

unsafe NXOpen.CAE.Connections.Folder[]	GetChildFolders ()
	Get the child folders More...

unsafe NXOpen.CAE.Connections.IConnection[]	GetConnections ()
	Get the connections More...

unsafe NXOpen.CAE.Connections.IConnection[]	ImportConnectionsFromMcf (string file, NXOpen.Unit inputFileUnit)
	Create CAE.Connections.IConnection connections in the current CAE.Connections.Folder using connection data imported from a MCF file. More...

unsafe NXOpen.CAE.Connections.IConnection[]	ImportConnectionsFromXMcf (NXOpen.CAE.CaeDataContainer propertyList)
	Create CAE.Connections.IConnection connections in the current CAE.Connections.Folder using connection data imported from a xMCF file. More...

unsafe NXOpen.CAE.Connections.LumpedMass[]	ImportLumpedMassFromInterchangeData (NXOpen.Unit lengthUnit, NXOpen.Unit massUnit, bool reportErrors, NXOpen.CAE.Connections.LMIEConnection[] iConnections)
	Create CAE.Connections.LumpedMass connection in the current CAE.Connections.Folder using lumped mass intermediate representation imported from an external file. More...

unsafe NXOpen.CAE.Connections.SpotWeld[]	ImportSpotWeldFromWcd (string file, NXOpen.Unit inputFileUnit)
	Create CAE.Connections.SpotWeld connections in the current CAE.Connections.Folder using connection data imported from a WCD file. More...

unsafe NXOpen.CAE.Connections.SpotWeld[]	ImportSpotWeldFromWcdWithHeight (string file, NXOpen.Unit inputFileUnit, NXOpen.CAE.Connections.HeightType heightType, double heightValue)
	Create CAE.Connections.SpotWeld connections in the current CAE.Connections.Folder using connection data imported from a WCD file. More...

unsafe void	MoveConnectionsToThisFolder (NXOpen.CAE.Connections.IConnection[] connections)
	Add an array of connections to this folder. More...

unsafe void	MoveConnectionToThisFolder (NXOpen.CAE.Connections.IConnection connection)
	Add a connection to this folder. More...

Public Member Functions inherited from NXOpen.NXObject
unsafe NXOpen.AttributeIterator	CreateAttributeIterator ()
	Create an attribute iterator More...

unsafe void	DeleteAllAttributesByType (NXOpen.NXObject.AttributeType type)
	Deletes all attributes of a specific type. More...

unsafe void	DeleteAllAttributesByType (NXOpen.NXObject.AttributeType type, NXOpen.Update.Option option)
	Deletes all attributes of a specific type with the option to update or not. More...

unsafe void	DeleteAttributeByTypeAndTitle (NXOpen.NXObject.AttributeType type, string title)
	Deletes an attribute by type and title. More...

unsafe void	DeleteAttributeByTypeAndTitle (NXOpen.NXObject.AttributeType type, string title, NXOpen.Update.Option option)
	Deletes an attribute by type and title with the option to update or not. More...

unsafe void	DeleteUserAttribute (NXOpen.NXObject.AttributeType type, string title, bool deleteEntireArray, NXOpen.Update.Option option)
	Deletes the first attribute encountered with the given Type, Title. More...

unsafe void	DeleteUserAttributes (NXOpen.AttributeIterator iterator, NXOpen.Update.Option option)
	Deletes the attributes on the object, if any, that satisfy the given iterator More...

unsafe void	DeleteUserAttributes (NXOpen.NXObject.AttributeType type, NXOpen.Update.Option option)
	Deletes the attributes encountered with the given Type with option to update or not. More...

unsafe NXOpen.INXObject	FindObject (string journalIdentifier)
	Finds the NXOpen.NXObject with the given identifier as recorded in a journal. More...

unsafe NXOpen.NXObject.AttributeInformation[]	GetAttributeTitlesByType (NXOpen.NXObject.AttributeType type)
	Gets all the attribute titles of a specific type. More...

unsafe bool	GetBooleanUserAttribute (string title, int index)
	Gets a boolean attribute by Title and array Index. More...

unsafe NXOpen.NXObject.ComputationalTime	GetComputationalTimeUserAttribute (string title, int index)
	Gets a time attribute by Title and array Index. More...

unsafe int	GetIntegerAttribute (string title)
	Gets an integer attribute by title. More...

unsafe int	GetIntegerUserAttribute (string title, int index)
	Gets an integer attribute by Title and array Index. More...

unsafe bool	GetNextUserAttribute (NXOpen.AttributeIterator iterator, out NXOpen.NXObject.AttributeInformation info)
	Gets the next attribute encountered on the object, if any, that satisfies the given iterator. More...

unsafe string	GetPdmReferenceAttributeValue (string attributeTitle)
	Gets the value of PDM Reference attribute for given object. More...

unsafe double	GetRealAttribute (string title)
	Gets a real attribute by title. More...

unsafe double	GetRealUserAttribute (string title, int index)
	Gets a real attribute by Title and array Index. More...

unsafe string	GetReferenceAttribute (string title)
	Gets the reference string (not the calculated value) of a string attribute that uses a reference string. More...

unsafe string	GetStringAttribute (string title)
	Gets a string attribute value by title. More...

unsafe string	GetStringUserAttribute (string title, int index)
	Gets a string attribute by Title and array Index. More...

unsafe string	GetTimeAttribute (NXOpen.NXObject.DateAndTimeFormat format, string title)
	Gets a time attribute by title. More...

unsafe string	GetTimeUserAttribute (string title, int index)
	Gets a time attribute by Title and array Index. More...

unsafe NXOpen.NXObject.AttributeInformation	GetUserAttribute (string title, NXOpen.NXObject.AttributeType type, int index)
	Gets the first attribute encountered on the object, if any, with a given Title, Type and array Index. More...

unsafe NXOpen.NXObject.AttributeInformation[]	GetUserAttribute (string title, bool includeUnset, bool addStringValues, NXOpen.NXObject.AttributeType type)
	Gets the first attribute (or attribute array) encountered on the object, if any, with a given Title and Type. More...

unsafe string	GetUserAttributeAsString (string title, NXOpen.NXObject.AttributeType type, int index)
	Gets the first attribute encountered on the object, if any, with a given title, type and array index. More...

unsafe int	GetUserAttributeCount (NXOpen.AttributeIterator iterator)
	Gets the count of set attributes on the object, if any, that satisfy the given iterator. More...

unsafe int	GetUserAttributeCount (NXOpen.AttributeIterator iterator, bool countArrayAsOneAttribute)
	Gets the count of set attributes on the object, if any, that satisfy the given iterator. More...

unsafe int	GetUserAttributeCount (NXOpen.NXObject.AttributeType type)
	Gets the count of set attributes on the object, if any, of the given type. More...

unsafe int	GetUserAttributeCount (NXOpen.NXObject.AttributeType type, bool includeUnset, bool countArrayAsOneAttribute)
	Gets the count of attributes on the object, if any, of the given type. More...

unsafe bool	GetUserAttributeLock (string title, NXOpen.NXObject.AttributeType type)
	Determine the lock of the given attribute. More...

unsafe NXOpen.NXObject.AttributeInformation[]	GetUserAttributes (NXOpen.AttributeIterator iterator)
	Gets all the attributes that have been set on the given object, if any, that satisfy the given iterator. More...

unsafe NXOpen.NXObject.AttributeInformation[]	GetUserAttributes ()
	Gets all the attributes that have been set on the given object. More...

unsafe NXOpen.NXObject.AttributeInformation[]	GetUserAttributes (bool includeUnset)
	Gets all the attributes of the given object. More...

unsafe NXOpen.NXObject.AttributeInformation[]	GetUserAttributes (bool includeUnset, bool addStringValues)
	Gets all the attributes of the given object. More...

unsafe string[]	GetUserAttributesAsStrings ()
	Gets all the attributes that have been set on the given object. More...

unsafe int	GetUserAttributeSize (string title, NXOpen.NXObject.AttributeType type)
	Gets the size of the first attribute encountered on the object, if any, with a given Title and Type. More...

unsafe NXOpen.NXObject[]	GetUserAttributeSourceObjects ()
	Returns an array of objects from which this object presents attributes. More...

unsafe bool	HasUserAttribute (NXOpen.AttributeIterator iterator)
	Determines if an attribute exists on the object, that satisfies the given iterator More...

unsafe bool	HasUserAttribute (string title, NXOpen.NXObject.AttributeType type, int index)
	Determines if an attribute with the given Title, Type and array Index is present on the object Unset attributes will not be detected by this function, as its purpose is to test for the actual presence of the attribute on the object. More...

unsafe void	Print ()
	Prints a representation of this object to the system log file. More...

unsafe void	SetAttribute (string title, int value)
	Creates or modifies an integer attribute. More...

unsafe void	SetAttribute (string title, int value, NXOpen.Update.Option option)
	Creates or modifies an integer attribute with the option to update or not. More...

unsafe void	SetAttribute (string title, double value)
	Creates or modifies a real attribute. More...

unsafe void	SetAttribute (string title, double value, NXOpen.Update.Option option)
	Creates or modifies a real attribute with the option to update or not. More...

unsafe void	SetAttribute (string title, string value)
	Creates or modifies a string attribute. More...

unsafe void	SetAttribute (string title, string value, NXOpen.Update.Option option)
	Creates or modifies a string attribute with the option to update or not. More...

unsafe void	SetAttribute (string title)
	Creates or modifies a null attribute which is an attribute with a title and no value. More...

unsafe void	SetAttribute (string title, NXOpen.Update.Option option)
	Creates or modifies a null attribute with the option to update or not. More...

unsafe void	SetBooleanUserAttribute (string title, int index, bool value, NXOpen.Update.Option option)
	Creates or modifies a boolean attribute with the option to update or not. More...

unsafe void	SetName (string name)
	Sets the custom name of the object. More...

unsafe void	SetPdmReferenceAttribute (string attributeTitle, string attributeValue)
	Sets the value of PDM Reference attribute on the object. More...

unsafe void	SetReferenceAttribute (string title, string value)
	Creates or modifies a string attribute which uses a reference string. More...

unsafe void	SetReferenceAttribute (string title, string value, NXOpen.Update.Option option)
	Creates or modifies a string attribute which uses a reference string, with the option to update or not. More...

unsafe void	SetTimeAttribute (string title, string value)
	Creates or modifies a time attribute. More...

unsafe void	SetTimeAttribute (string title, string value, NXOpen.Update.Option option)
	Creates or modifies a time attribute with the option to update or not. More...

unsafe void	SetTimeUserAttribute (string title, int index, string value, NXOpen.Update.Option option)
	Creates or modifies a time attribute with the option to update or not. More...

unsafe void	SetTimeUserAttribute (string title, int index, NXOpen.NXObject.ComputationalTime value, NXOpen.Update.Option option)
	Creates or modifies a time attribute with the option to update or not. More...

unsafe void	SetUserAttribute (NXOpen.NXObject.AttributeInformation info, NXOpen.Update.Option option)
	Creates or modifies an attribute with the option to update or not. More...

unsafe void	SetUserAttribute (string title, int index, int value, NXOpen.Update.Option option)
	Creates or modifies an integer attribute with the option to update or not. More...

unsafe void	SetUserAttribute (string title, int index, double value, NXOpen.Update.Option option)
	Creates or modifies a real attribute with the option to update or not. More...

unsafe void	SetUserAttribute (string title, int index, string value, NXOpen.Update.Option option)
	Creates or modifies a string attribute with the option to update or not. More...

unsafe void	SetUserAttribute (string title, int index, NXOpen.Update.Option option)
	Creates or modifies a null attribute with the option to update or not. More...

unsafe void	SetUserAttributeLock (string title, NXOpen.NXObject.AttributeType type, bool @lock)
	Lock or unlock the given attribute. More...

Public Member Functions inherited from NXOpen.TaggedObject
void	PrintTestData (String variableName)
	<exclude> More...

void	PrintTestData (String variableName, int lineNumber)
	<exclude> More...

override string	ToString ()
	Returns a String that represents the current Object. More...

Public Member Functions inherited from NXOpen.Utilities.NXRemotableObject
IMessageCtrl	AsyncProcessMessage (IMessage msg, IMessageSink replySink)
	Asynchronously processes the given message. More...

IMessage	SyncProcessMessage (IMessage msg)
	Synchronously processes the given message. More...

Properties
unsafe NXOpen.CAE.Connections.Folder	Parent `[get]`
	Returns the parent folder More...

Properties inherited from NXOpen.NXObject
unsafe bool	IsOccurrence `[get]`
	Returns whether this object is an occurrence or not. More...

unsafe string	JournalIdentifier `[get]`
	Returns the identifier that would be recorded in a journal for this object. More...

unsafe string	Name `[get]`
	Returns the custom name of the object. More...

unsafe NXOpen.Assemblies.Component	OwningComponent `[get]`
	Returns the owning component, if this object is an occurrence. More...

unsafe NXOpen.BasePart	OwningPart `[get]`
	Returns the owning part of this object More...

unsafe NXOpen.INXObject	Prototype `[get]`
	Returns the prototype of this object if it is an occurrence. More...

Properties inherited from NXOpen.TaggedObject
Tag	Tag `[get]`
	Returns the tag of this object. More...

Properties inherited from NXOpen.Utilities.NXRemotableObject
IMessageSink	NextSink `[get]`
	Gets the next message sink in the sink chain. More...

Properties inherited from NXOpen.INXObject
bool	IsOccurrence `[get]`
	Returns whether this object is an occurrence or not. More...

string	JournalIdentifier `[get]`
	Returns the identifier that would be recorded in a journal for this object. More...

string	Name `[get]`
	Returns the custom name of the object. More...

NXOpen.Assemblies.Component	OwningComponent `[get]`
	Returns the owning component, if this object is an occurrence. More...

NXOpen.BasePart	OwningPart `[get]`
	Returns the owning part of this object More...

NXOpen.INXObject	Prototype `[get]`
	Returns the prototype of this object if it is an occurrence. More...

Additional Inherited Members
Public Types inherited from NXOpen.NXObject
enum	AttributeType { Invalid, Null, Boolean, Integer, Real, String, Time, Reference, Any = 100 }
	Specifies attribute type. More...

enum	DateAndTimeFormat { Numeric, Textual }
	Specifies the format of the date and time attribute. More...

Protected Member Functions inherited from NXOpen.TaggedObject
new void	initialize ()
	<exclude> More...

Detailed Description

The Folder class offers a way to create a hierarchy of connections and sub-folders

To obtain an instance of this object use the add_folder creator in a parent folder or access connection root folder from CAE.IFEModel

Created in NX12.0.0

Member Function Documentation

unsafe void NXOpen.CAE.Connections.Folder.AddFolder ( NXOpen.CAE.Connections.Folder subfolder )

inline

Add a subfolder to this folder.

The subfolder is moved if found in other folder.

Created in NX12.0.0

License requirements: nx_masterfem ("Finite Element Modeling")

Parameters

subfolder the added folder

unsafe NXOpen.CAE.Connections.IConnection NXOpen.CAE.Connections.Folder.CreateConnection	(	NXOpen.CAE.Connections.ConnectionType	type,
		string	name
	)

inline

Create a CAE.Connections.IConnection in this folder of the specified type with the specified name

Created in NX12.0.0

License requirements: nx_masterfem ("Finite Element Modeling")

Parameters

type
name	name of the connection

Returns: the created connection

unsafe NXOpen.CAE.Connections.Folder NXOpen.CAE.Connections.Folder.CreateFolder ( string name )

inline

Creates a CAE.Connections.Folder in this folder with the specified name

Created in NX12.0.0

License requirements: nx_masterfem ("Finite Element Modeling")

Parameters

name	Name that the created folder should have

Returns: the created CAE.Connections.Folder

unsafe NXOpen.CAE.Connections.SpotWeld [] NXOpen.CAE.Connections.Folder.CreateSpotWeldConnectionFromWcdFile	(	string	file,
		string	matfile,
		NXOpen.CAE.Connections.ConnectionDBItemData	pDbData
	)

inline

Create CAE.Connections.SpotWeld connections in the current CAE.Connections.Folder using connection data imported from a WCD file.

This method allows user to create a spotweld connection specifically for composer application

Created in NX1899.0.0

License requirements: nx_masterfem ("Finite Element Modeling")

Parameters

file	name of the wcd import file
matfile	name of the material file
pDbData	connection db data pointer

Returns: the created connections

unsafe void NXOpen.CAE.Connections.Folder.DeleteObjects ( NXOpen.NXObject[] objects )

inline

Delete CAE.Connections.IConnection or CAE.Connections.Folder instances.

Use this to avoid performance issue in particular cases.

Created in NX1847.0.0

License requirements: nx_masterfem ("Finite Element Modeling")

Parameters

objects the objects to delete

unsafe NXOpen.CAE.Connections.IConnection [] NXOpen.CAE.Connections.Folder.DetectConnections ( NXOpen.CAE.CaeDataContainer propertyList )

inline

Create CAE.Connections.IConnection connections in the current CAE.Connections.Folder using connection auto detect.

Created in NX1847.0.0

License requirements: nx_masterfem ("Finite Element Modeling")

Parameters

propertyList the import parameters see CAE.CaeSession.GetDataContainer .

Returns: the created connections

unsafe void NXOpen.CAE.Connections.Folder.ExportConnectionsToXMcf	(	NXOpen.CAE.Connections.IConnection[]	connections,
		NXOpen.CAE.CaeDataContainer	propertyList
	)

inline

Export CAE.Connections.IConnection connections in the current CAE.Connections.Folder to a xMCF file.

Created in NX1847.0.0

License requirements: nx_masterfem ("Finite Element Modeling")

Parameters

connections	the connections to export
propertyList	the import parameters see CAE.CaeSession.GetDataContainer .

unsafe NXOpen.CAE.Connections.IConnection [] NXOpen.CAE.Connections.Folder.GetAllConnections ( )

inline

Get all the connections under this folder and its descendant folders

Created in NX12.0.0

License requirements: nx_masterfem ("Finite Element Modeling") OR nx_design_sim ("NX Design Simulation")

Returns: all connections under this folder and its descendants

unsafe NXOpen.CAE.Connections.Folder [] NXOpen.CAE.Connections.Folder.GetChildFolders ( )

inline

Get the child folders

Created in NX12.0.0

License requirements: nx_masterfem ("Finite Element Modeling") OR nx_design_sim ("NX Design Simulation")

Returns: child folders

unsafe NXOpen.CAE.Connections.IConnection [] NXOpen.CAE.Connections.Folder.GetConnections ( )

inline

Get the connections

Created in NX12.0.0

License requirements: nx_masterfem ("Finite Element Modeling") OR nx_design_sim ("NX Design Simulation")

Returns: connections found in folder

unsafe NXOpen.CAE.Connections.IConnection [] NXOpen.CAE.Connections.Folder.ImportConnectionsFromMcf	(	string	file,
		NXOpen.Unit	inputFileUnit
	)

inline

Create CAE.Connections.IConnection connections in the current CAE.Connections.Folder using connection data imported from a MCF file.

Created in NX12.0.0

License requirements: nx_masterfem ("Finite Element Modeling")

Parameters

file	name of the import file
inputFileUnit	the length unit used in the input file

Returns: the created connections

unsafe NXOpen.CAE.Connections.IConnection [] NXOpen.CAE.Connections.Folder.ImportConnectionsFromXMcf ( NXOpen.CAE.CaeDataContainer propertyList )

inline

Create CAE.Connections.IConnection connections in the current CAE.Connections.Folder using connection data imported from a xMCF file.

Created in NX1847.0.0

License requirements: nx_masterfem ("Finite Element Modeling")

Parameters

propertyList the import parameters see CAE.CaeSession.GetDataContainer .

Returns: the created connections

unsafe NXOpen.CAE.Connections.LumpedMass [] NXOpen.CAE.Connections.Folder.ImportLumpedMassFromInterchangeData	(	NXOpen.Unit	lengthUnit,
		NXOpen.Unit	massUnit,
		bool	reportErrors,
		NXOpen.CAE.Connections.LMIEConnection[]	iConnections
	)

inline

Create CAE.Connections.LumpedMass connection in the current CAE.Connections.Folder using lumped mass intermediate representation imported from an external file.

Created in NX1847.0.0

License requirements: nx_masterfem ("Finite Element Modeling")

Parameters

lengthUnit	The length unit
massUnit	The mass unit
reportErrors
iConnections	The array of input lumped mass connections in intermediate representation

Returns: The intermediate connection representations

unsafe NXOpen.CAE.Connections.SpotWeld [] NXOpen.CAE.Connections.Folder.ImportSpotWeldFromWcd	(	string	file,
		NXOpen.Unit	inputFileUnit
	)

inline

Create CAE.Connections.SpotWeld connections in the current CAE.Connections.Folder using connection data imported from a WCD file.

Created in NX12.0.0

Deprecated in NX1872.0.0. Use NXOpen.CAE.Connections.Folder.ImportSpotWeldFromWcdWithHeight instead.

License requirements: nx_masterfem ("Finite Element Modeling")

Parameters

file	name of the import file
inputFileUnit	the length unit used in the input file

Returns: the created connections

unsafe NXOpen.CAE.Connections.SpotWeld [] NXOpen.CAE.Connections.Folder.ImportSpotWeldFromWcdWithHeight	(	string	file,
		NXOpen.Unit	inputFileUnit,
		NXOpen.CAE.Connections.HeightType	heightType,
		double	heightValue
	)

inline

Create CAE.Connections.SpotWeld connections in the current CAE.Connections.Folder using connection data imported from a WCD file.

This method allows user to set the height value for the Spot weld

Created in NX1872.0.0

License requirements: nx_masterfem ("Finite Element Modeling")

Parameters

file	name of the import file
inputFileUnit	the length unit used in the input file
heightType	Height type
heightValue	Height value. To be considered only when Height type is JA_CAE_CONNECTIONS_TYPES_HeightType_User

Returns: the created connections

unsafe void NXOpen.CAE.Connections.Folder.MoveConnectionsToThisFolder ( NXOpen.CAE.Connections.IConnection[] connections )

inline

Add an array of connections to this folder.

The connections are removed from the previous parent folder.

Created in NX1899.0.0

License requirements: nx_masterfem ("Finite Element Modeling")

Parameters

connections the array of connections that are moved

unsafe void NXOpen.CAE.Connections.Folder.MoveConnectionToThisFolder ( NXOpen.CAE.Connections.IConnection connection )

inline

Add a connection to this folder.

The connection is removed from the previous parent folder.

Created in NX12.0.0

Deprecated in NX1899.0.0. Use NXOpen.CAE.Connections.Folder.MoveConnectionsToThisFolder instead.

License requirements: nx_masterfem ("Finite Element Modeling")

Parameters

connection the connection that is moved

Property Documentation

unsafe NXOpen.CAE.Connections.Folder NXOpen.CAE.Connections.Folder.Parent

get

Returns the parent folder

Created in NX12.0.0

License requirements: nx_masterfem ("Finite Element Modeling") OR nx_design_sim ("NX Design Simulation")

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

CAE_Connections_Folder.cs

Public Member Functions

Properties

Additional Inherited Members

Detailed Description

Member Function Documentation

Property Documentation