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WindowLevelRegionTool

WindowLevelRegion tool manipulates the windowLevel applied to a viewport. It provides a way to set the windowCenter and windowWidth of a viewport by dragging mouse over the image to draw a rectangle region which is used to calculate the windowCenter and windowWidth based on the ROI

Hierarchy

Index

Constructors

Properties

Methods

Constructors

constructor

Properties

publicconfiguration

configuration: Record<string, any>

editData

editData: { annotation: any; viewportIdsToRender: string[] }

Type declaration

  • annotation: any
  • viewportIdsToRender: string[]

isDrawing

isDrawing: boolean

publicmode

mode: ToolModes

Tool Mode - Active/Passive/Enabled/Disabled/

publicsupportedInteractionTypes

supportedInteractionTypes: InteractionTypes[]

Supported Interaction Types - currently only Mouse

publictoolGroupId

toolGroupId: string

ToolGroup ID the tool instance belongs to

statictoolName

toolName: any

Methods

_activateDraw

  • _activateDraw(element: any): void

  • Add event handlers for the modify event loop, and prevent default event prapogation.

    Parameters

    • element: any

    Returns void

_activateModify

  • _activateModify(): void

  • Returns void

_deactivateDraw

  • _deactivateDraw(element: any): void

  • Add event handlers for the modify event loop, and prevent default event prapogation.

    Parameters

    • element: any

    Returns void

_deactivateModify

  • _deactivateModify(): void

  • Returns void

_dragCallback

  • _dragCallback(evt: InteractionEventType): void

  • Parameters

    • evt: InteractionEventType

    Returns void

_endCallback

  • _endCallback(evt: InteractionEventType): void

  • Parameters

    • evt: InteractionEventType

    Returns void

addNewAnnotation

  • addNewAnnotation(evt: InteractionEventType): any

  • Based on the current position of the mouse and the current imageId to create a RectangleROI Annotation and stores it in the annotationManager

    Parameters

    • evt: InteractionEventType

      EventTypes.NormalizedMouseEventType

    Returns any

    The annotation object.

publicapplyActiveStrategy

  • applyActiveStrategy(enabledElement: IEnabledElement, operationData: unknown): any

  • Applies the active strategy function to the enabled element with the specified operation data.

    Parameters

    • enabledElement: IEnabledElement

      The element that is being operated on.

    • operationData: unknown

      The data that needs to be passed to the strategy.

    Returns any

    The result of the strategy.

publicapplyActiveStrategyCallback

  • applyActiveStrategyCallback(enabledElement: IEnabledElement, operationData: unknown, callbackType: string): any

  • Applies the active strategy, with a given event type being applied. The event type function is found by indexing it on the active strategy function.

    Parameters

    • enabledElement: IEnabledElement

      The element that is being operated on.

    • operationData: unknown

      The data that needs to be passed to the strategy.

    • callbackType: string

      the type of the callback

    Returns any

    The result of the strategy.

applyWindowLevelRegion

  • applyWindowLevelRegion(annotation: any, element: any): void

  • Parameters

    • annotation: any
    • element: any

    Returns void

cancel

  • cancel(): void
  • @abstract

    cancel Used to cancel the ongoing tool drawing and manipulation

    Returns void

filterInteractableAnnotationsForElement

  • Given the element and annotations which is an array of annotation, it filters the annotations array to only include the annotation based on the viewportType. If the viewport is StackViewport, it filters based on the current imageId of the viewport, if the viewport is volumeViewport, it only returns those that are within the same slice as the current rendered slice in the volume viewport. imageId as the enabledElement.

    Parameters

    • element: HTMLDivElement

      The HTML element

    • annotations: Annotations

      The annotations to filter (array of annotation)

    Returns Annotations

    The filtered annotations

getHandleNearImagePoint

  • getHandleNearImagePoint(element: HTMLDivElement, annotation: Annotation, canvasCoords: Point2, proximity: number): ToolHandle

  • It checks if the mouse click is near TextBoxHandle or AnnotationHandle itself, and return either it. It prioritize TextBoxHandle over AnnotationHandle. If the mouse click is not near any of the handles, it does not return anything.

    Parameters

    • element: HTMLDivElement

      The element that the tool is attached to.

    • annotation: Annotation

      The annotation object associated with the annotation

    • canvasCoords: Point2

      The coordinates of the mouse click on canvas

    • proximity: number

      The distance from the mouse cursor to the point that is considered “near”.

    Returns ToolHandle

    The handle that is closest to the cursor, or null if the cursor is not near any of the handles.

publicgetLinkedTextBoxStyle

  • getLinkedTextBoxStyle(specifications: StyleSpecifier, annotation?: Annotation): Record<string, unknown>

  • It returns the style for the text box

    Parameters

    • specifications: StyleSpecifier
    • optionalannotation: Annotation

      The annotation for the tool that is currently active.

    Returns Record<string, unknown>

    An object of the style settings for the text box.

publicgetStyle

  • getStyle(property: string, specifications: StyleSpecifier, annotation?: Annotation): unknown

  • It takes the property (color, lineDash, etc.) and based on the state of the annotation (selected, highlighted etc.) it returns the appropriate value based on the central toolStyle settings for each level of specification.

    Parameters

    • property: string

      The name of the style property to get.

    • specifications: StyleSpecifier
    • optionalannotation: Annotation

      The annotation for the tool that is currently active.

    Returns unknown

    The value of the property.

publicgetToolName

  • getToolName(): string

  • Returns the name of the tool

    Returns string

    The name of the tool.

handleSelectedCallback

  • handleSelectedCallback(): void

  • handleSelectedCallback Custom callback for when a handle is selected.

    Returns void

isPointNearTool

  • isPointNearTool(): any

  • Returns true if the provided canvas coordinate tool is near the annotation

    Returns any

    boolean if the point is near.

isSuvScaled

  • isSuvScaled(viewport: default | default, targetId: string, imageId?: string): boolean

  • Returns true if the viewport is scaled to SUV units

    Parameters

    • viewport: default | default

      The viewport

    • targetId: string

      The annotation targetId

    • optionalimageId: string

      The annotation imageId

    Returns boolean

publicmouseMoveCallback

  • mouseMoveCallback(evt: MouseMoveEventType, filteredAnnotations?: Annotations): boolean

  • Event handler for Cornerstone MOUSE_MOVE event.

    Parameters

    • evt: MouseMoveEventType

      The normalized mouse event

    • optionalfilteredAnnotations: Annotations

      The annotations to check for hover interactions

    Returns boolean

    True if the annotation needs to be re-drawn by the annotationRenderingEngine.

publiconImageSpacingCalibrated

  • onImageSpacingCalibrated(evt: ImageSpacingCalibratedEvent): void

  • On Image Calibration, take all the annotation from the AnnotationState manager, and invalidate them to force them to be re-rendered and their stats to be recalculated. Then use the old and new imageData (non-calibrated and calibrated) to calculate the new position for the annotations in the space of the new imageData.

    Parameters

    • evt: ImageSpacingCalibratedEvent

      The calibration event

    Returns void

renderAnnotation

  • renderAnnotation(enabledElement: IEnabledElement, svgDrawingHelper: SVGDrawingHelper): boolean

  • it is used to draw the rectangleROI annotation in each request animation frame. It calculates the updated cached statistics if data is invalidated and cache it.

    Parameters

    • enabledElement: IEnabledElement

      The Cornerstone’s enabledElement.

    • svgDrawingHelper: SVGDrawingHelper

      The svgDrawingHelper providing the context for drawing.

    Returns boolean

publicsetActiveStrategy

  • setActiveStrategy(strategyName: string): void

  • Sets the active strategy for a tool. Strategies are multiple implementations of tool behavior that can be switched by tool configuration.

    Parameters

    • strategyName: string

      name of the strategy to be set as active

    Returns void

publicsetConfiguration

  • setConfiguration(newConfiguration: Record<string, any>): void

  • merges the new configuration with the tool configuration

    Parameters

    • newConfiguration: Record<string, any>

    Returns void

toolSelectedCallback

  • toolSelectedCallback(): void

  • Custom callback for when an annotation is selected

    Returns void

publicstaticcreateAndAddAnnotation

  • createAndAddAnnotation(viewport: any, ...annotationBaseData: any[]): void

  • Creates and adds an annotation of the given type, firing the annotation modified event on the new annotation. This implicitly uses the static class when you call it on the correct base class. For example, you can call the KeyImageTool.createAnnotation method on KeyImageTool.toolName by calling KeyImageTool.createAndAddAnnotation

    Parameters

    • viewport: any
    • rest...annotationBaseData: any[]

    Returns void

publicstaticcreateAnnotation

  • createAnnotation(...annotationBaseData: any[]): Annotation

  • Creates a base annotation object, adding in any annotation base data provided

    Parameters

    • rest...annotationBaseData: any[]

    Returns Annotation

publicstaticcreateAnnotationForViewport

  • createAnnotationForViewport(viewport: any, ...annotationBaseData: any[]): Annotation

  • Creates a new annotation for the given viewport. This just adds the viewport reference data to the metadata, and otherwise returns the static class createAnnotation data.

    Parameters

    • viewport: any
    • rest...annotationBaseData: any[]

    Returns Annotation