Paintbrush tool for InteractiveSegmentation. More...

#include <mitkPaintbrushTool.h>

Inheritance diagram for mitk::PaintbrushTool:

[legend]

Collaboration diagram for mitk::PaintbrushTool:

[legend]

Public Member Functions
	mitkClassMacro (PaintbrushTool, FeedbackContourTool)

void	SetSize (int value)
	Sets the radius of the circular paintbrush pen. More...

Public Member Functions inherited from mitk::FeedbackContourTool
	mitkClassMacro (FeedbackContourTool, SegTool2D)

Public Member Functions inherited from mitk::SegTool2D
	mitkClassMacro (SegTool2D, Tool)

void	SetShowMarkerNodes (bool show)
	Sets whether contour marker nodes should be visible in the DataStorage. More...

void	SetEnable3DInterpolation (bool)
	Enables or disables the 3D interpolation after writing back the 2D segmentation result, and defaults to true. More...

void	Activated () override
	Called when the tool gets activated. More...

void	Deactivated () override
	Called when the tool gets deactivated. More...

virtual void	SetIsTimePointChangeAware (bool _arg)

virtual bool	GetIsTimePointChangeAware ()

virtual void	IsTimePointChangeAwareOn ()

virtual void	IsTimePointChangeAwareOff ()

DataNode *	GetWorkingDataNode () const
	Returns the segmentation node that should be modified by the tool. More...

MultiLabelSegmentation *	GetWorkingData () const
	Returns the working data (multi-label segmentation image). More...

DataNode *	GetReferenceDataNode () const
	Returns the reference data node. More...

Image *	GetReferenceData () const
	Returns the reference image data. More...

Public Member Functions inherited from mitk::Tool
	mitkClassMacro (Tool, EventStateMachine)

virtual us::ModuleResource	GetCursorIconResource () const
	Returns the cursor icon of the tool wrapped by a usModuleResource. More...

virtual us::ModuleResource	GetIconResource () const
	Returns the tool button icon of the tool wrapped by a usModuleResource. More...

virtual const char *	GetName () const =0
	Returns the name of this tool. Make it short! More...

virtual mitk::Label::AlgorithmType	GetAlgorithmType () const
	Returns the intrinsic algorithm type of this tool, used to stamp label provenance. More...

virtual const char *	GetGroup () const
	Name of a group. More...

virtual bool	IsEligibleForAutoInit () const
	Returns whether this tool is eligible for auto-initialization by ToolManager. More...

virtual void	InitializeStateMachine ()
	Initializes the state machine for this tool based on the interaction type. More...

virtual itk::Object::Pointer	GetGUI (const std::string &toolkitPrefix, const std::string &toolkitPostfix)
	Interface for GUI creation. More...

virtual NodePredicateBase::ConstPointer	GetReferenceDataPreference () const
	Returns a predicate describing valid reference data for this tool. More...

virtual NodePredicateBase::ConstPointer	GetWorkingDataPreference () const
	Returns a predicate describing valid working data for this tool. More...

virtual bool	CanHandle (const BaseData referenceData, const BaseData workingData) const
	Checks if a tool can handle the given reference data and optional working data. More...

virtual bool	ConfirmBeforeDeactivation ()
	Method call to invoke a dialog box just before exiting. More...

Public Member Functions inherited from mitk::EventStateMachine
	mitkClassMacro (EventStateMachine, InteractionEventHandler)

bool	LoadStateMachine (const std::string &filename, const us::Module *module=nullptr)
	Load a state machine pattern from an XML resource file. More...

bool	HandleEvent (InteractionEvent event, DataNode dataNode)
	Process an incoming interaction event. More...

void	EnableUndo (bool enable)
	Enable or disable the undo mechanism for this state machine. More...

void	EnableInteraction (bool enable)
	Enable or disable the state machine. More...

Public Member Functions inherited from mitk::InteractionEventHandler
	mitkClassMacroItkParent (InteractionEventHandler, itk::Object)

bool	SetEventConfig (const std::string &filename, const us::Module *module=nullptr)
	Loads a configuration from an XML resource. More...

bool	SetEventConfig (const EventConfig &config)
	Loads a configuration from an EventConfig object. More...

EventConfig	GetEventConfig () const
	Returns the current configuration. More...

bool	AddEventConfig (const std::string &filename, const us::Module *module=nullptr)
	This method extends the configuration. More...

bool	AddEventConfig (const EventConfig &config)
	This method extends the configuration. The configuration from the EventConfig object is loaded and only the ones conflicting are replaced by the new one. This way several configurations can be combined. More...

Public Member Functions inherited from mitk::InteractionEventObserver
	InteractionEventObserver ()

virtual	~InteractionEventObserver ()

void	Disable ()
	Disable this observer so it no longer receives notifications. More...

void	Enable ()
	Enable this observer so it receives notifications. More...

bool	IsEnabled () const
	Check whether this observer is currently enabled. More...

Static Public Member Functions
static ContourModel::Pointer	CreateBrushContour (int size)
	Builds a closed circular brush contour of the given size in 2D index coordinates, centered at the origin. More...

static ContourModel::Pointer	CreateGapContour (const Point3D &from, const Point3D &to, double radius)
	Builds a closed four-vertex rectangle ContourModel that fills the gap swept between two brush positions, in 2D index coordinates. More...

Static Public Member Functions inherited from mitk::SegTool2D
static bool	DetermineAffectedImageSlice (const Image image, const PlaneGeometry plane, int &affectedDimension, int &affectedSlice)
	Calculates for a given Image and PlaneGeometry, which slice of the image (in index coordinates) is meant by the plane. More...

static void	UpdateAllSurfaceInterpolations (const MultiLabelSegmentation workingImage, TimeStepType timeStep, const PlaneGeometry plane, bool detectIntersection)
	Updates the surface interpolations by extracting contours from the given slice. More...

static Image::Pointer	GetAffectedImageSliceAs2DImage (const InteractionPositionEvent positionEvent, const Image image, unsigned int component=0)
	Extract the slice of an image that the user just scribbles on. The given component denotes the vector component of an vector image. More...

static Image::Pointer	GetAffectedImageSliceAs2DImage (const PlaneGeometry planeGeometry, const Image image, TimeStepType timeStep, unsigned int component=0)
	Extract the slice of an image cut by given plane. The given component denotes the vector component of a vector image. More...

static Image::Pointer	GetAffectedImageSliceAs2DImageByTimePoint (const PlaneGeometry planeGeometry, const Image image, TimePointType timePoint, unsigned int component=0)
	Extract the slice of an image cut by the given plane at a specified time point. More...

static void	WriteBackSegmentationResult (const DataNode workingNode, const PlaneGeometry planeGeometry, const Image *segmentationResult, TimeStepType timeStep, const std::string &toolName)
	Writes the provided segmentation result slice into the data of the passed workingNode. More...

static void	WriteSliceToVolume (Image workingImage, const PlaneGeometry planeGeometry, const Image *slice, TimeStepType timeStep)
	Writes a provided slice into the passed working image. More...

Public Attributes
Message1< int >	SizeChanged
	Emitted when the pen size changes or should be updated in a GUI. More...

Public Attributes inherited from mitk::Tool
Message	GUIProcessEventsMessage
	To let GUI process new events (e.g. qApp->processEvents() ) More...

Message1< std::string >	ErrorMessage
	To send error messages (to be shown by some GUI) More...

Message1< bool >	CurrentlyBusy
	To send whether the tool is busy (to be shown by some GUI) More...

Message1< std::string >	GeneralMessage
	To send general messages (to be shown by some GUI) More...

Protected Member Functions
	PaintbrushTool (bool startWithFillMode=true)

	~PaintbrushTool () override

void	ConnectActionsAndFunctions () override

void	Activated () override
	Called when the tool gets activated. More...

void	Deactivated () override
	Called when the tool gets deactivated. More...

virtual void	OnMousePressed (StateMachineAction , InteractionEvent )

virtual void	OnMouseMoved (StateMachineAction , InteractionEvent )

virtual void	OnPrimaryButtonPressedMoved (StateMachineAction , InteractionEvent )

virtual void	MouseMoved (mitk::InteractionEvent *interactionEvent, bool leftMouseButtonPressed)

virtual void	OnMouseReleased (StateMachineAction , InteractionEvent )

void	UpdateFeedbackColor ()

virtual void	OnInvertLogic (StateMachineAction , InteractionEvent )

virtual int	GetFillValue () const

void	UpdateContour (const InteractionPositionEvent *)

bool	CheckIfCurrentSliceHasChanged (const InteractionPositionEvent *event)

void	ResetWorkingSlice (const InteractionPositionEvent *event)

void	OnToolManagerWorkingDataModified ()

Protected Member Functions inherited from mitk::FeedbackContourTool
	FeedbackContourTool (const char *)

	~FeedbackContourTool () override

const ContourModel *	GetFeedbackContour () const

void	InitializeFeedbackContour (bool isClosed)

void	ClearsCurrentFeedbackContour (bool isClosed)

void	UpdateCurrentFeedbackContour (const ContourModel *sourceModel, TimeStepType sourceTimeStep=0)

void	UpdateFeedbackContour (const ContourModel *sourceModel, TimeStepType feedbackTimeStep, TimeStepType sourceTimeStep=0)

void	AddVertexToCurrentFeedbackContour (const Point3D &point)

void	AddVertexToFeedbackContour (const Point3D &point, TimeStepType feedbackTimeStep)

void	SetFeedbackContourVisible (bool)

void	SetFeedbackContourColor (float r, float g, float b)
	Provide values from 0.0 (black) to 1.0 (full color) More...

void	SetFeedbackContourColor (const Color &color)

void	SetFeedbackContourColorDefault ()

void	SetFeedbackContourWidth (float width)

ContourModel::Pointer	ProjectContourTo2DSlice (const Image slice, const ContourModel contourIn3D)
	Projects a contour onto an image point by point. Converts from world to index coordinates. More...

ContourModel::Pointer	BackProjectContourFrom2DSlice (const BaseGeometry sliceGeometry, const ContourModel contourIn2D)
	Projects a slice index coordinates of a contour back into world coordinates. More...

void	WriteBackFeedbackContourAsSegmentationResult (const InteractionPositionEvent *positionEvent, MultiLabelSegmentation::LabelValueType labelValue, bool addMode, bool setInvisibleAfterSuccess=true)
	Checks preconditions and writes the feedback contour as a segmentation result. More...

mitk::Image::Pointer	GenerateSliceWithContourUpdate (const MultiLabelSegmentation seg, const PlaneGeometry sliceGeometry, const ContourModel *contour, MultiLabelSegmentation::LabelValueType labelValue, TimePointType timePoint, bool addMode)
	Generates an updated slice image with the contour applied. More...

Protected Member Functions inherited from mitk::SegTool2D
	SegTool2D ()

	SegTool2D (const char , const us::Module interactorModule=nullptr)

	~SegTool2D () override

virtual void	OnTimePointChanged ()

bool	FilterEvents (InteractionEvent interactionEvent, DataNode dataNode) override
	Filters events that cannot be handled by 2D segmentation tools. More...

Image::Pointer	GetAffectedWorkingSlice (const InteractionPositionEvent *) const
	Extract the slice of the currently selected working image that the user just scribbles on. More...

Image::Pointer	GetAffectedReferenceSlice (const InteractionPositionEvent *) const
	Extract the slice of the currently selected reference image that the user just scribbles on. More...

Image::Pointer	GetAffectedReferenceSlice (const PlaneGeometry *planeGeometry, TimeStepType timeStep) const

void	WriteBackSegmentationResult (const InteractionPositionEvent , const Image segmentationResult)

void	WriteBackSegmentationResult (const PlaneGeometry planeGeometry, const Image segmentationResult, TimeStepType timeStep)

void	WriteBackSegmentationResults (const std::vector< SliceInformation > &sliceList, bool writeSliceToVolume=true)

virtual MultiLabelSegmentation::LabelValueVectorType	GetAffectedLabelValues () const
	Returns the label value(s) whose pixels this tool's writeback actually modifies, so the provenance stamp at the writeback choke point lands on the right label. The default is the active label; tools that write a label other than the active one (e.g. erase/close operate on the clicked label) override this. An empty result records no tool use. More...

int	AddContourmarker (const PlaneGeometry *planeGeometry, unsigned int sliceIndex)
	Adds a new node called Contourmarker to the datastorage which holds a mitk::PlanarFigure. By selecting this node the slicestack will be reoriented according to the passed PlanarFigure's Geometry. More...

void	DisableContourMarkers ()

void	InteractiveSegmentationBugMessage (const std::string &message) const

virtual TimePointType	GetLastTimePointTriggered ()

void	PushCursor ()
	Pushes the current tool cursor onto the cursor stack. More...

void	PushCursor (us::ModuleResource cursorResource)
	Pushes a custom cursor onto the cursor stack. More...

void	PopCursor (bool popFirstCursor=false)
	Pops the most recently pushed cursor from the stack. More...

void	PopAllCursors ()
	Pops all cursors from the stack, restoring the default cursor. More...

Protected Member Functions inherited from mitk::Tool
virtual void	SetToolManager (ToolManager *)

ToolManager *	GetToolManager () const

mitk::DataStorage *	GetDataStorage () const

void	ConnectActionsAndFunctions () override

	Tool (const char , const us::Module interactorModule=nullptr)

	~Tool () override

void	Notify (InteractionEvent *interactionEvent, bool isHandled) override
	Called by the Dispatcher to notify this observer about an InteractionEvent. More...

bool	FilterEvents (InteractionEvent , DataNode ) override

Protected Member Functions inherited from mitk::EventStateMachine
	EventStateMachine ()

	~EventStateMachine () override

void	AddActionFunction (const std::string &action, const ActionFunctionDelegate &delegate)

void	AddConditionFunction (const std::string &condition, const ConditionFunctionDelegate &delegate)

StateMachineState *	GetCurrentState () const

void	ResetToStartState ()
	ResetToStartState Reset state machine to it initial starting state. More...

virtual bool	CheckCondition (const StateMachineCondition &condition, const InteractionEvent *interactionEvent)

virtual void	ExecuteAction (StateMachineAction action, InteractionEvent interactionEvent)

void	SetMouseCursor (const char *xpm[], int hotspotX, int hotspotY)
	Sets the specified mouse cursor. More...

void	ResetMouseCursor ()
	Resets the mouse cursor to its original state. More...

StateMachineTransition *	GetExecutableTransition (InteractionEvent *event)
	Returns the executable transition for the given event. More...

Protected Member Functions inherited from mitk::InteractionEventHandler
	InteractionEventHandler ()

	~InteractionEventHandler () override

PropertyList::Pointer	GetAttributes () const

std::string	MapToEventVariant (InteractionEvent *interactionEvent)

virtual void	ConfigurationChanged ()

Static Protected Member Functions
static mitk::Point2D	upperLeft (mitk::Point2D p)

Static Protected Member Functions inherited from mitk::SegTool2D
static void	UpdateSurfaceInterpolation (const std::vector< SliceInformation > &sliceInfos, const Image *workingImage, bool detectIntersection, mitk::Label::PixelType activeLabelValue, bool silent=false)
	Updates the surface interpolation by extracting contours from given slices. More...

static void	WriteBackSegmentationResults (const DataNode *workingNode, const std::vector< SliceInformation > &sliceList, bool writeSliceToVolume=true, bool allowUndo=true, const std::string &toolName="")
	Writes all provided source slices into the data of the passed workingNode. The function does the following: 1) for every passed slice write it to workingNode (and generate and undo/redo step); 2) update the surface interpolation and 3) mark the node as modified. More...

static void	WriteSliceToVolume (Image *workingImage, const SliceInformation &sliceInfo)

static bool	IsPositionEventInsideImageRegion (InteractionPositionEvent positionEvent, const BaseData data)

Protected Attributes
bool	m_FillMode

int	m_Size

ContourModel::Pointer	m_MasterContour

int	m_LastContourSize

Image::Pointer	m_WorkingSlice

Image::Pointer	m_PaintingSlice

PlaneGeometry::ConstPointer	m_CurrentPlane

DataNode::Pointer	m_PaintingNode

mitk::Point3D	m_LastPosition

Protected Attributes inherited from mitk::SegTool2D
BaseRenderer *	m_LastEventSender

unsigned int	m_LastEventSlice

Protected Attributes inherited from mitk::Tool
std::string	m_EventConfig
	Let subclasses change their event configuration. More...

Protected Attributes inherited from mitk::EventStateMachine
bool	m_IsActive

UndoController *	m_UndoController

bool	m_UndoEnabled

Additional Inherited Members
Public Types inherited from mitk::Tool
typedef mitk::Label::PixelType	DefaultSegmentationDataType

Public Types inherited from mitk::EventStateMachine
typedef itk::SmartPointer< StateMachineState >	StateMachineStateType

Protected Types inherited from mitk::EventStateMachine
typedef MessageAbstractDelegate2< StateMachineAction , InteractionEvent , void >	ActionFunctionDelegate

typedef MessageAbstractDelegate1< const InteractionEvent *, bool >	ConditionFunctionDelegate

Detailed Description

Paintbrush tool for InteractiveSegmentation.

See also: FeedbackContourTool; ExtractImageFilter

Simple paintbrush drawing tool. Right now there are only circular pens of varying size.

Warning: Only to be instantiated by mitk::ToolManager.

Author: maleike

Definition at line 41 of file mitkPaintbrushTool.h.

Constructor & Destructor Documentation

◆ PaintbrushTool()

mitk::PaintbrushTool::PaintbrushTool ( bool startWithFillMode = true )

protected

◆ ~PaintbrushTool()

mitk::PaintbrushTool::~PaintbrushTool ( )

overrideprotected

Member Function Documentation

◆ Activated()

void mitk::PaintbrushTool::Activated ( )

overrideprotectedvirtual

Called when the tool gets activated.

Derived tools should call their parents implementation at the beginning of the overriding function.

Reimplemented from mitk::FeedbackContourTool.

◆ CheckIfCurrentSliceHasChanged()

bool mitk::PaintbrushTool::CheckIfCurrentSliceHasChanged ( const InteractionPositionEvent * event )

protected

Checks if the current slice has changed and updates (if needed m_CurrentPlane).

◆ ConnectActionsAndFunctions()

void mitk::PaintbrushTool::ConnectActionsAndFunctions ( )

overrideprotectedvirtual

Is called after loading a statemachine. Overwrite this function in specific interactor implementations. Connect actions and functions using the CONNECT_FUNCTION macro within this function.

Reimplemented from mitk::EventStateMachine.

◆ CreateBrushContour()

static ContourModel::Pointer mitk::PaintbrushTool::CreateBrushContour ( int size )

static

Builds a closed circular brush contour of the given size in 2D index coordinates, centered at the origin.

Half-pixel corner correction is applied so that even and odd sizes stamp symmetrically around the index where the brush is rendered.

Precondition: size > 0 (a non-positive size yields a degenerate contour).

◆ CreateGapContour()

static ContourModel::Pointer mitk::PaintbrushTool::CreateGapContour	(	const Point3D &	from,
		const Point3D &	to,
		double	radius
	)

static

Builds a closed four-vertex rectangle ContourModel that fills the gap swept between two brush positions, in 2D index coordinates.

Used to avoid holes when the mouse moves more than one brush radius between successive samples.

Precondition: from != to (a zero-length vector causes the internal direction.normalize() to produce NaNs).

◆ Deactivated()

void mitk::PaintbrushTool::Deactivated ( )

overrideprotectedvirtual

Called when the tool gets deactivated.

Derived tools should call their parents implementation at the end of the overriding function.

Reimplemented from mitk::FeedbackContourTool.

◆ GetFillValue()

virtual int mitk::PaintbrushTool::GetFillValue ( ) const

protectedvirtual

◆ mitkClassMacro()

mitk::PaintbrushTool::mitkClassMacro	(	PaintbrushTool	,
		FeedbackContourTool
	)

◆ MouseMoved()

virtual void mitk::PaintbrushTool::MouseMoved	(	mitk::InteractionEvent *	interactionEvent,
		bool	leftMouseButtonPressed
	)

protectedvirtual

◆ OnInvertLogic()

virtual void mitk::PaintbrushTool::OnInvertLogic	(	StateMachineAction *	,
		InteractionEvent *
	)

protectedvirtual

Reimplemented in mitk::ErasePaintbrushTool, and mitk::DrawPaintbrushTool.

◆ OnMouseMoved()

virtual void mitk::PaintbrushTool::OnMouseMoved	(	StateMachineAction *	,
		InteractionEvent *
	)

protectedvirtual

◆ OnMousePressed()

virtual void mitk::PaintbrushTool::OnMousePressed	(	StateMachineAction *	,
		InteractionEvent *
	)

protectedvirtual

◆ OnMouseReleased()

virtual void mitk::PaintbrushTool::OnMouseReleased	(	StateMachineAction *	,
		InteractionEvent *
	)

protectedvirtual

◆ OnPrimaryButtonPressedMoved()

virtual void mitk::PaintbrushTool::OnPrimaryButtonPressedMoved	(	StateMachineAction *	,
		InteractionEvent *
	)

protectedvirtual

◆ OnToolManagerWorkingDataModified()

void mitk::PaintbrushTool::OnToolManagerWorkingDataModified ( )

protected

◆ ResetWorkingSlice()

void mitk::PaintbrushTool::ResetWorkingSlice ( const InteractionPositionEvent * event )

protected

◆ SetSize()

void mitk::PaintbrushTool::SetSize ( int value )

Sets the radius of the circular paintbrush pen.

Parameters

[in] value The pen radius in pixels.

◆ UpdateContour()

void mitk::PaintbrushTool::UpdateContour ( const InteractionPositionEvent * )

protected

◆ UpdateFeedbackColor()

void mitk::PaintbrushTool::UpdateFeedbackColor ( )

protected

◆ upperLeft()

static mitk::Point2D mitk::PaintbrushTool::upperLeft ( mitk::Point2D p )

staticprotected

Little helper function. Returns the upper left corner of the given pixel.

Member Data Documentation

◆ m_CurrentPlane

PlaneGeometry::ConstPointer mitk::PaintbrushTool::m_CurrentPlane

protected

Definition at line 124 of file mitkPaintbrushTool.h.

◆ m_FillMode

bool mitk::PaintbrushTool::m_FillMode

protected

Definition at line 115 of file mitkPaintbrushTool.h.

◆ m_LastContourSize

int mitk::PaintbrushTool::m_LastContourSize

protected

Definition at line 120 of file mitkPaintbrushTool.h.

◆ m_LastPosition

mitk::Point3D mitk::PaintbrushTool::m_LastPosition

protected

Definition at line 126 of file mitkPaintbrushTool.h.

◆ m_MasterContour

ContourModel::Pointer mitk::PaintbrushTool::m_MasterContour

protected

Definition at line 118 of file mitkPaintbrushTool.h.

◆ m_PaintingNode

DataNode::Pointer mitk::PaintbrushTool::m_PaintingNode

protected

Definition at line 125 of file mitkPaintbrushTool.h.

◆ m_PaintingSlice

Image::Pointer mitk::PaintbrushTool::m_PaintingSlice

protected

Definition at line 123 of file mitkPaintbrushTool.h.

◆ m_Size

int mitk::PaintbrushTool::m_Size

protected

Definition at line 116 of file mitkPaintbrushTool.h.

◆ m_WorkingSlice

Image::Pointer mitk::PaintbrushTool::m_WorkingSlice

protected

Definition at line 122 of file mitkPaintbrushTool.h.

◆ SizeChanged

Message1<int> mitk::PaintbrushTool::SizeChanged

Emitted when the pen size changes or should be updated in a GUI.

Definition at line 45 of file mitkPaintbrushTool.h.

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

mitkPaintbrushTool.h

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ PaintbrushTool()

◆ ~PaintbrushTool()

Member Function Documentation

◆ Activated()

◆ CheckIfCurrentSliceHasChanged()

◆ ConnectActionsAndFunctions()

◆ CreateBrushContour()

◆ CreateGapContour()

◆ Deactivated()

◆ GetFillValue()

◆ mitkClassMacro()

◆ MouseMoved()

◆ OnInvertLogic()

◆ OnMouseMoved()

◆ OnMousePressed()

◆ OnMouseReleased()

◆ OnPrimaryButtonPressedMoved()

◆ OnToolManagerWorkingDataModified()

◆ ResetWorkingSlice()

◆ SetSize()

◆ UpdateContour()

◆ UpdateFeedbackColor()

◆ upperLeft()

Member Data Documentation

◆ m_CurrentPlane

◆ m_FillMode

◆ m_LastContourSize

◆ m_LastPosition

◆ m_MasterContour

◆ m_PaintingNode

◆ m_PaintingSlice

◆ m_Size

◆ m_WorkingSlice

◆ SizeChanged