Class: CrosshairsTool
CrosshairsTool is a tool that provides reference lines between different viewports of a toolGroup. Using crosshairs, you can jump to a specific location in one viewport and the rest of the viewports in the toolGroup will be aligned to that location. Crosshairs have grababble handles that can be used to rotate and translate the reference lines. They can also be used to set the slab thickness of the viewports by modifying the slab thickness handles.
Extends
Constructors
new CrosshairsTool()
new CrosshairsTool(
toolProps,defaultToolProps):CrosshairsTool
Parameters
• toolProps: PublicToolProps = {}
• defaultToolProps: SharedToolProp = ...
Returns
Overrides
Defined in
tools/src/tools/CrosshairsTool.ts:116
Properties
_getReferenceLineColor()?
optional_getReferenceLineColor: (viewportId) =>string
Parameters
• viewportId: string
Returns
string
Defined in
tools/src/tools/CrosshairsTool.ts:108
_getReferenceLineControllable()?
optional_getReferenceLineControllable: (viewportId) =>boolean
Parameters
• viewportId: string
Returns
boolean
Defined in
tools/src/tools/CrosshairsTool.ts:109
_getReferenceLineDraggableRotatable()?
optional_getReferenceLineDraggableRotatable: (viewportId) =>boolean
Parameters
• viewportId: string
Returns
boolean
Defined in
tools/src/tools/CrosshairsTool.ts:110
_getReferenceLineSlabThicknessControlsOn()?
optional_getReferenceLineSlabThicknessControlsOn: (viewportId) =>boolean
Parameters
• viewportId: string
Returns
boolean
Defined in
tools/src/tools/CrosshairsTool.ts:111
configuration
configuration:
Record<string,any>
Inherited from
Defined in
tools/src/tools/base/BaseTool.ts:17
editData
editData:
object
annotation
annotation:
Annotation
Defined in
tools/src/tools/CrosshairsTool.ts:112
mode
mode:
ToolModes
Tool Mode - Active/Passive/Enabled/Disabled/
Inherited from
Defined in
tools/src/tools/base/BaseTool.ts:21
supportedInteractionTypes
supportedInteractionTypes:
InteractionTypes[]
Supported Interaction Types - currently only Mouse
Inherited from
AnnotationTool.supportedInteractionTypes
Defined in
tools/src/tools/base/BaseTool.ts:15
toolCenter
toolCenter:
Point3
Defined in
tools/src/tools/CrosshairsTool.ts:106
toolGroupId
toolGroupId:
string
ToolGroup ID the tool instance belongs to
Inherited from
Defined in
tools/src/tools/base/BaseTool.ts:19
toolName
statictoolName:any
Overrides
Defined in
tools/src/tools/CrosshairsTool.ts:104
Methods
_activateModify()
_activateModify(
element):void
Parameters
• element: any
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:1954
_applyDeltaShiftToSelectedViewportCameras()
_applyDeltaShiftToSelectedViewportCameras(
renderingEngine,viewportsAnnotationsToUpdate,delta):void
Parameters
• renderingEngine: any
• viewportsAnnotationsToUpdate: any
• delta: any
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:2369
_applyDeltaShiftToViewportCamera()
_applyDeltaShiftToViewportCamera(
renderingEngine,annotation,delta):void
Parameters
• renderingEngine: RenderingEngine
• annotation: any
• delta: any
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:2382
_areViewportIdArraysEqual()
_areViewportIdArraysEqual(
viewportIdArrayOne,viewportIdArrayTwo):boolean
Parameters
• viewportIdArrayOne: any
• viewportIdArrayTwo: any
Returns
boolean
Defined in
tools/src/tools/CrosshairsTool.ts:1582
_autoPanViewportIfNecessary()
_autoPanViewportIfNecessary(
viewportId,renderingEngine):void
Parameters
• viewportId: string
• renderingEngine: RenderingEngine
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:1511
_checkIfViewportsRenderingSameScene()
_checkIfViewportsRenderingSameScene(
viewport,otherViewport):boolean
Parameters
• viewport: any
• otherViewport: any
Returns
boolean
Defined in
tools/src/tools/CrosshairsTool.ts:1885
_deactivateModify()
_deactivateModify(
element):void
Parameters
• element: any
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:1969
_dragCallback()
_dragCallback(
evt):void
Parameters
• evt: InteractionEventType
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:2004
_endCallback()
_endCallback(
evt):void
Parameters
• evt: InteractionEventType
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:1981
_filterAnnotationsByUniqueViewportOrientations()
_filterAnnotationsByUniqueViewportOrientations(
enabledElement,annotations):any[]
Parameters
• enabledElement: any
• annotations: any
Returns
any[]
Defined in
tools/src/tools/CrosshairsTool.ts:1685
_filterViewportWithSameOrientation()
_filterViewportWithSameOrientation(
enabledElement,referenceAnnotation,annotations):any
Parameters
• enabledElement: any
• referenceAnnotation: any
• annotations: any
Returns
any
Defined in
tools/src/tools/CrosshairsTool.ts:1641
_getAnnotations()
_getAnnotations(
enabledElement):Annotation[]
Parameters
• enabledElement: IEnabledElement
Returns
Defined in
tools/src/tools/CrosshairsTool.ts:1459
_getAnnotationsForViewportsWithDifferentCameras()
_getAnnotationsForViewportsWithDifferentCameras(
enabledElement,annotations):any
Parameters
• enabledElement: any
• annotations: any
Returns
any
Defined in
tools/src/tools/CrosshairsTool.ts:1605
_getRotationHandleNearImagePoint()
_getRotationHandleNearImagePoint(
viewport,annotation,canvasCoords,proximity):any
Parameters
• viewport: any
• annotation: any
• canvasCoords: any
• proximity: any
Returns
any
Defined in
tools/src/tools/CrosshairsTool.ts:2488
_getSlabThicknessHandleNearImagePoint()
_getSlabThicknessHandleNearImagePoint(
viewport,annotation,canvasCoords,proximity):any
Parameters
• viewport: any
• annotation: any
• canvasCoords: any
• proximity: any
Returns
any
Defined in
tools/src/tools/CrosshairsTool.ts:2528
_getViewportsInfo()
_getViewportsInfo():
any[]
Returns
any[]
Defined in
tools/src/tools/CrosshairsTool.ts:239
_isClockWise()
_isClockWise(
a,b,c):boolean
Parameters
• a: any
• b: any
• c: any
Returns
boolean
Defined in
tools/src/tools/CrosshairsTool.ts:2364
_jump()
_jump(
enabledElement,jumpWorld):boolean
Parameters
• enabledElement: any
• jumpWorld: any
Returns
boolean
Defined in
tools/src/tools/CrosshairsTool.ts:1903
_onNewVolume()
_onNewVolume():
void
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:1476
_pointNearReferenceLine()
_pointNearReferenceLine(
annotation,canvasCoords,proximity,lineViewport):boolean
Parameters
• annotation: any
• canvasCoords: any
• proximity: any
• lineViewport: any
Returns
boolean
Defined in
tools/src/tools/CrosshairsTool.ts:2421
_pointNearTool()
_pointNearTool(
element,annotation,canvasCoords,proximity):boolean
Parameters
• element: any
• annotation: any
• canvasCoords: any
• proximity: any
Returns
boolean
Defined in
tools/src/tools/CrosshairsTool.ts:2570
_subscribeToViewportNewVolumeSet()
_subscribeToViewportNewVolumeSet(
viewports):void
Parameters
• viewports: any
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:1496
_unsubscribeToViewportNewVolumeSet()
_unsubscribeToViewportNewVolumeSet(
viewportsInfo):void
Parameters
• viewportsInfo: any
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:1481
addNewAnnotation()
addNewAnnotation(
evt):CrosshairsAnnotation
addNewAnnotation acts as jump for the crosshairs tool. It is called when the user clicks on the image. It does not store the annotation in the stateManager though.
Parameters
• evt: InteractionEventType
The mouse event
Returns
CrosshairsAnnotation
Crosshairs annotation
Overrides
AnnotationTool.addNewAnnotation
Defined in
tools/src/tools/CrosshairsTool.ts:405
applyActiveStrategy()
applyActiveStrategy(
enabledElement,operationData):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.
Inherited from
AnnotationTool.applyActiveStrategy
Defined in
tools/src/tools/base/BaseTool.ts:62
applyActiveStrategyCallback()
applyActiveStrategyCallback(
enabledElement,operationData,callbackType):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.
Inherited from
AnnotationTool.applyActiveStrategyCallback
Defined in
tools/src/tools/base/BaseTool.ts:86
cancel()
cancel():
void
cancel Used to cancel the ongoing tool drawing and manipulation
Returns
void
Overrides
Defined in
tools/src/tools/CrosshairsTool.ts:457
computeToolCenter()
computeToolCenter(
viewportsInfo):void
When activated, it initializes the crosshairs. It begins by computing the intersection of viewports associated with the crosshairs instance. When all three views are accessible, the intersection (e.g., crosshairs tool centre) will be an exact point in space; however, with two viewports, because the intersection of two planes is a line, it assumes the last view is between the centre of the two rendering viewports.
Parameters
• viewportsInfo: any
Array of viewportInputs which each item containing {viewportId, renderingEngineId}
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:345
filterInteractableAnnotationsForElement()
filterInteractableAnnotationsForElement(
element,annotations):any
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: any
The HTML element
• annotations: any
The annotations to filter (array of annotation)
Returns
any
The filtered annotations
Overrides
AnnotationTool.filterInteractableAnnotationsForElement
Defined in
tools/src/tools/CrosshairsTool.ts:749
getAnnotationStyle()
protectedgetAnnotationStyle(context):AnnotationStyle
Get the style that will be applied to all annotations such as length, cobb angle, arrow annotate, etc. when rendered on a canvas or svg layer
Parameters
• context
• context.annotation: Annotation
• context.styleSpecifier: StyleSpecifier
Returns
Inherited from
AnnotationTool.getAnnotationStyle
Defined in
tools/src/tools/base/AnnotationTool.ts:393
getHandleNearImagePoint()
getHandleNearImagePoint(
element,annotation,canvasCoords,proximity):ToolHandle
It checks if the mouse click is near crosshairs handles, if yes it returns the handle location. 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
The handle that is closest to the cursor, or null if the cursor is not near any of the handles.
Overrides
AnnotationTool.getHandleNearImagePoint
Defined in
tools/src/tools/CrosshairsTool.ts:474
getLinkedTextBoxStyle()
getLinkedTextBoxStyle(
specifications,annotation?):Record<string,unknown>
It returns the style for the text box
Parameters
• specifications: StyleSpecifier
• annotation?: Annotation
The annotation for the tool that is currently active.
Returns
Record<string, unknown>
An object of the style settings for the text box.
Inherited from
AnnotationTool.getLinkedTextBoxStyle
Defined in
tools/src/tools/base/AnnotationTool.ts:328
getReferencedImageId()
protectedgetReferencedImageId(viewport,worldPos,viewPlaneNormal,viewUp?):string
Parameters
• viewport: Viewport
• worldPos: Point3
• viewPlaneNormal: Point3
• viewUp?: Point3
Returns
string
Inherited from
AnnotationTool.getReferencedImageId
Defined in
tools/src/tools/base/AnnotationDisplayTool.ts:126
getStyle()
getStyle(
property,specifications,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
• annotation?: Annotation
The annotation for the tool that is currently active.
Returns
unknown
The value of the property.
Inherited from
Defined in
tools/src/tools/base/AnnotationDisplayTool.ts:163
getTargetId()
protectedgetTargetId(viewport):string
Get the target Id for the viewport which will be used to store the cached statistics scoped to that target in the annotations. For StackViewport, targetId is the viewportId, but for the volume viewport, the targetId will be grabbed from the volumeId if particularly specified in the tool configuration, or if not, the first actorUID in the viewport.
Parameters
• viewport: Viewport
viewport to get the targetId for
Returns
string
targetId
Inherited from
Defined in
tools/src/tools/base/BaseTool.ts:197
getTargetImageData()
protectedgetTargetImageData(targetId):IImageData|CPUIImageData
Get the image that is displayed for the targetId in the cachedStats which can be
imageId:<imageId>volumeId:<volumeId>videoId:<basePathForVideo>/frames/<frameSpecifier>
Parameters
• targetId: string
annotation targetId stored in the cached stats
Returns
IImageData | CPUIImageData
The image data for the target.
Inherited from
AnnotationTool.getTargetImageData
Defined in
tools/src/tools/base/BaseTool.ts:140
getToolName()
getToolName():
string
Returns the name of the tool
Returns
string
The name of the tool.
Inherited from
Defined in
tools/src/tools/base/BaseTool.ts:50
handleSelectedCallback()
handleSelectedCallback(
evt,annotation):void
handleSelectedCallback Custom callback for when a handle is selected.
Parameters
• evt: InteractionEventType
The normalized mouse event
• annotation: Annotation
The annotation selected.
Returns
void
Overrides
AnnotationTool.handleSelectedCallback
Defined in
tools/src/tools/CrosshairsTool.ts:506
initializeViewport()
initializeViewport(
viewportInfo):object
Gets the camera from the viewport, and adds crosshairs annotation for the viewport to the annotationManager. If any annotation is found in the annotationManager, it overwrites it.
Parameters
• viewportInfo: IViewportId
The viewportInfo for the viewport to add the crosshairs
Returns
object
viewPlaneNormal and center of viewport canvas in world space
normal
normal:
Point3
point
point:
Point3
Defined in
tools/src/tools/CrosshairsTool.ts:181
isPointNearTool()
isPointNearTool(
element,annotation,canvasCoords,proximity):boolean
It returns if the canvas point is near the provided crosshairs annotation in the provided element or not. A proximity is passed to the function to determine the proximity of the point to the annotation in number of pixels.
Parameters
• element: HTMLDivElement
HTML Element
• annotation: CrosshairsAnnotation
Annotation
• canvasCoords: Point2
Canvas coordinates
• proximity: number
Proximity to tool to consider
Returns
boolean
Boolean, whether the canvas point is near tool
Overrides
AnnotationTool.isPointNearTool
Defined in
tools/src/tools/CrosshairsTool.ts:537
isSuvScaled()
isSuvScaled(
viewport,targetId,imageId?):boolean
Returns true if the viewport is scaled to SUV units
Parameters
• viewport: StackViewport | VolumeViewport
The viewport
• targetId: string
The annotation targetId
• imageId?: string
The annotation imageId
Returns
boolean
Inherited from
Defined in
tools/src/tools/base/AnnotationTool.ts:374
mouseMoveCallback()
mouseMoveCallback(
evt,filteredToolAnnotations):boolean
Event handler for Cornerstone MOUSE_MOVE event.
Parameters
• evt: MouseMoveEventType
The normalized mouse event
• filteredToolAnnotations: Annotations
The annotations to check for hover interactions
Returns
boolean
True if the annotation needs to be re-drawn by the annotationRenderingEngine.
Overrides
AnnotationTool.mouseMoveCallback
Defined in
tools/src/tools/CrosshairsTool.ts:686
onCameraModified()
onCameraModified(
evt):void
Parameters
• evt: any
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:565
onImageSpacingCalibrated()
onImageSpacingCalibrated(
evt):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
Inherited from
AnnotationTool.onImageSpacingCalibrated
Defined in
tools/src/tools/base/AnnotationDisplayTool.ts:83
onResetCamera()
onResetCamera(
evt):void
Parameters
• evt: any
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:682
onSetToolActive()
onSetToolActive():
void
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:245
onSetToolDisabled()
onSetToolDisabled():
void
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:269
onSetToolEnabled()
onSetToolEnabled():
void
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:263
onSetToolPassive()
onSetToolPassive():
void
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:257
renderAnnotation()
renderAnnotation(
enabledElement,svgDrawingHelper):boolean
renders the crosshairs lines and handles in the requestAnimationFrame callback
Parameters
• enabledElement: IEnabledElement
The Cornerstone's enabledElement.
• svgDrawingHelper: SVGDrawingHelper
The svgDrawingHelper providing the context for drawing.
Returns
boolean
Overrides
AnnotationTool.renderAnnotation
Defined in
tools/src/tools/CrosshairsTool.ts:770
resetCrosshairs()
resetCrosshairs():
void
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:299
setActiveStrategy()
setActiveStrategy(
strategyName):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
Inherited from
AnnotationTool.setActiveStrategy
Defined in
tools/src/tools/base/BaseTool.ts:126
setConfiguration()
setConfiguration(
newConfiguration):void
merges the new configuration with the tool configuration
Parameters
• newConfiguration: Record<string, any>
Returns
void
Inherited from
AnnotationTool.setConfiguration
Defined in
tools/src/tools/base/BaseTool.ts:112
setSlabThickness()
setSlabThickness(
viewport,slabThickness):void
Parameters
• viewport: any
• slabThickness: any
Returns
void
Defined in
tools/src/tools/CrosshairsTool.ts:2344
toolSelectedCallback()
toolSelectedCallback(
evt,annotation,interactionType):void
Custom callback for when an annotation is selected
Parameters
• evt: InteractionEventType
The normalized mouse event
• annotation: Annotation
The Annotation to check.
• interactionType: InteractionTypes
The interaction type used to select the tool.
Returns
void
Overrides
AnnotationTool.toolSelectedCallback
Defined in
tools/src/tools/CrosshairsTool.ts:550
createAndAddAnnotation()
staticcreateAndAddAnnotation(viewport, ...annotationBaseData):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
• ...annotationBaseData: any[]
Returns
void
Inherited from
AnnotationTool.createAndAddAnnotation
Defined in
tools/src/tools/base/AnnotationTool.ts:97
createAnnotation()
staticcreateAnnotation(...annotationBaseData):Annotation
Creates a base annotation object, adding in any annotation base data provided
Parameters
• ...annotationBaseData: any[]
Returns
Inherited from
AnnotationTool.createAnnotation
Defined in
tools/src/tools/base/AnnotationTool.ts:45
createAnnotationForViewport()
staticcreateAnnotationForViewport(viewport, ...annotationBaseData):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
• ...annotationBaseData: any[]
Returns
Inherited from
AnnotationTool.createAnnotationForViewport