nnInteractive interactor for drawing contours. More...

#include <mitknnInteractiveLassoInteractor.h>

Inheritance diagram for mitk::nnInteractive::LassoInteractor:

Collaboration diagram for mitk::nnInteractive::LassoInteractor:

[legend]

Public Member Functions
	LassoInteractor ()
	Constructs a LassoInteractor with InteractionType::Lasso. More...

	~LassoInteractor () override
	Destructor. Calls OnReset() to clean up data nodes. More...

bool	HasInteractions () const override
	Checks whether any contours have been drawn. More...

Image::ConstPointer	GetLastLassoMask () const
	Returns the binary mask slice of the most recently drawn contour. More...

const InteractionBoundingBox *	GetLastLassoBoundingBox () const
	Returns the interaction bounding box for the most recently drawn contour. More...

void	RemoveLastInteraction (PromptType promptType) override
	Removes the most recently drawn contour for the given prompt type. More...

Public Member Functions inherited from mitk::nnInteractive::Interactor
virtual	~Interactor ()
	Destructor. More...

InteractionType	GetType () const
	Returns the interaction type associated with this interactor. More...

void	SetToolManager (ToolManager *toolManager)
	Sets the ToolManager for this interactor. More...

void	HandleEvent (InteractionEvent *event)
	Handles an interaction event. More...

void	Enable (PromptType promptType)
	Enables the interactor for the given prompt type. More...

void	Disable ()
	Disables the interactor. More...

bool	IsEnabled () const
	Checks whether the interactor is currently enabled. More...

void	Reset ()
	Resets the interactor to its initial state. More...

std::string	GetIcon () const
	Retrieves the SVG icon as a string from module resources. More...

std::string	GetCursor (PromptType promptType) const
	Retrieves the SVG cursor as a string from module resources based on PromptType. More...

Additional Inherited Members
Public Attributes inherited from mitk::nnInteractive::Interactor
Message1< bool >	UpdatePreviewEvent
	Event triggered after an interaction has occurred. More...

Protected Member Functions inherited from mitk::nnInteractive::Interactor
	Interactor (InteractionType type)
	Constructs an interactor with a given type. More...

virtual void	OnSetToolManager ()
	Called when a ToolManager is assigned. More...

ToolManager *	GetToolManager () const
	Returns the ToolManager associated with this interactor. More...

DataStorage *	GetDataStorage () const
	Convenience method for accessing the DataStorage. More...

PromptType	GetCurrentPromptType () const
	Returns the currently active prompt type. More...

Detailed Description

nnInteractive interactor for drawing contours.

Each completed contour is stored as a ContourModel DataNode (vector geometry, cheap to keep around) for persistent visualization across slice scrolling and interactor switches; contours are organized by PromptType. The most recently drawn contour is also exposed as a small bounding-box-sized 3D uint8 mask plus the corresponding axis-aligned interaction bounding box in nnInteractive coordinates, so the Python call can skip the full 3D volume round-trip.

Interaction is handled through an internal contour state machine that builds a 3D-world-coordinate ContourModel as the user drags. On release the contour is rasterized via VTK reslicing into a small bounding-box-sized mask – no 3D working segmentation is involved. Left mouse button display interaction (crosshair navigation) is blocked while the interactor is enabled so the crosshair does not move during drawing.

See also: Interactor, ContourModel, nnInteractiveTool

Definition at line 42 of file mitknnInteractiveLassoInteractor.h.

Constructor & Destructor Documentation

◆ LassoInteractor()

mitk::nnInteractive::LassoInteractor::LassoInteractor ( )

Constructs a LassoInteractor with InteractionType::Lasso.

◆ ~LassoInteractor()

mitk::nnInteractive::LassoInteractor::~LassoInteractor ( )

override

Destructor. Calls OnReset() to clean up data nodes.

Member Function Documentation

◆ GetLastLassoBoundingBox()

const InteractionBoundingBox* mitk::nnInteractive::LassoInteractor::GetLastLassoBoundingBox ( ) const

Returns the interaction bounding box for the most recently drawn contour.

The box is in nnInteractive's coordinate order (reverse of MITK index order): {{z_min,z_max}, {y_min,y_max}, {x_min,x_max}}.

Returns: Pointer to the bounding box, or nullptr if no contour has been drawn yet.

◆ GetLastLassoMask()

Image::ConstPointer mitk::nnInteractive::LassoInteractor::GetLastLassoMask ( ) const

Returns the binary mask slice of the most recently drawn contour.

The mask is a uint8 image whose extent matches the corresponding interaction bounding box (one voxel thick along the slicing axis). Returning a smart pointer makes the lifetime explicit so callers do not need to know that the underlying member is replaced on the next stroke.

Returns: The mask Image, or a null smart pointer if no contour has been drawn yet.

◆ HasInteractions()

bool mitk::nnInteractive::LassoInteractor::HasInteractions ( ) const

overridevirtual

Checks whether any contours have been drawn.

Returns: true if at least one completed contour exists for any prompt type, false otherwise.

Implements mitk::nnInteractive::Interactor.

◆ RemoveLastInteraction()

void mitk::nnInteractive::LassoInteractor::RemoveLastInteraction ( PromptType promptType )

overridevirtual

Removes the most recently drawn contour for the given prompt type.

Removes the last lasso overlay node of promptType from the data storage. A no-op if no contour exists for that prompt type.

Parameters

[in] promptType The prompt type whose last contour should be removed.