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Class: abstract BaseVolumeViewport

Abstract base class for volume viewports. VolumeViewports are used to render 3D volumes from which various orientations can be viewed. Since VolumeViewports use SharedVolumeMappers behind the scene, memory footprint of visualizations of the same volume in different orientations is very small.

For setting volumes on viewports you need to use addVolumesToViewports which will add volumes to the specified viewports.

Extends​

Extended by​

Constructors​

new BaseVolumeViewport()​

new BaseVolumeViewport(props): BaseVolumeViewport

Parameters​

• props: ViewportInput

Returns​

BaseVolumeViewport

Overrides​

Viewport.constructor

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:90

Properties​

_actors​

_actors: Map<string, ActorEntry>

a Map containing the actor uid and actors

Inherited from​

Viewport._actors

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:119


_suppressCameraModifiedEvents​

_suppressCameraModifiedEvents: boolean = false

informs if a new actor was added before a resetCameraClippingRange phase

Inherited from​

Viewport._suppressCameraModifiedEvents

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:125


calibration​

protected calibration: IImageCalibration

Inherited from​

Viewport.calibration

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:129


canvas​

readonly canvas: HTMLCanvasElement

an internal canvas that is created on the provided HTML element

Inherited from​

Viewport.canvas

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:92


customRenderViewportToCanvas()​

customRenderViewportToCanvas: () => unknown

Returns​

unknown

Inherited from​

Viewport.customRenderViewportToCanvas

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:170


defaultOptions​

readonly defaultOptions: ViewportInputOptions

Default options for the viewport which includes orientation, viewPlaneNormal and backgroundColor

Inherited from​

Viewport.defaultOptions

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:121


element​

readonly element: HTMLDivElement

HTML element in DOM that is used for rendering the viewport

Inherited from​

Viewport.element

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:90


fitToCanvasCamera​

protected fitToCanvasCamera: ICamera

The camera that is defined for resetting displayArea to ensure absolute displayArea settings

Inherited from​

Viewport.fitToCanvasCamera

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:137


flipHorizontal​

protected flipHorizontal: boolean = false

Inherited from​

Viewport.flipHorizontal

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:102


flipVertical​

protected flipVertical: boolean = false

Inherited from​

Viewport.flipVertical

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:103


getNumberOfSlices()​

getNumberOfSlices: () => number

Returns​

number

Inherited from​

Viewport.getNumberOfSlices

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:174


hasPixelSpacing​

protected hasPixelSpacing: boolean = true

Inherited from​

Viewport.hasPixelSpacing

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:128


id​

readonly id: string

unique identifier for the viewport

Inherited from​

Viewport.id

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:88


initialCamera​

protected initialCamera: ICamera

The camera that is initially defined on the reset for the relative pan/zoom

Inherited from​

Viewport.initialCamera

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:133


initialTransferFunctionNodes​

protected initialTransferFunctionNodes: TransferFunctionNodes

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:78


initialViewUp​

protected initialViewUp: Point3

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:86


insetImageMultiplier​

protected insetImageMultiplier: number = 1.1

The amount by which the images are inset in a viewport by default.

Inherited from​

Viewport.insetImageMultiplier

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:100


isDisabled​

isDisabled: boolean

Inherited from​

Viewport.isDisabled

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:104


options​

options: ViewportInputOptions

options for the viewport which includes orientation axis, backgroundColor and displayArea

Inherited from​

Viewport.options

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:123


renderingEngineId​

readonly renderingEngineId: string

RenderingEngine id that the viewport belongs to

Inherited from​

Viewport.renderingEngineId

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:94


resize()​

resize: () => void

Returns​

void

Inherited from​

Viewport.resize

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:171


sHeight​

sHeight: number

sHeight of viewport on the offscreen canvas

Inherited from​

Viewport.sHeight

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:117


suppressEvents​

readonly suppressEvents: boolean

A flag representing if viewport methods should fire events or not

Inherited from​

Viewport.suppressEvents

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:127


sWidth​

sWidth: number

sWidth of viewport on the offscreen canvas

Inherited from​

Viewport.sWidth

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:115


sx​

sx: number

sx of viewport on the offscreen canvas

Inherited from​

Viewport.sx

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:111


sy​

sy: number

sy of viewport on the offscreen canvas

Inherited from​

Viewport.sy

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:113


type​

readonly type: ViewportType

Type of viewport

Inherited from​

Viewport.type

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:96


updateRenderingPipeline()​

updateRenderingPipeline: () => void

Returns​

void

Inherited from​

Viewport.updateRenderingPipeline

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:173


useCPURendering​

useCPURendering: boolean = false

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:75


viewportProperties​

protected viewportProperties: VolumeViewportProperties = {}

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:87


viewportStatus​

viewportStatus: ViewportStatus = ViewportStatus.NO_DATA

Record the rendering status, mostly for testing purposes, but can also be useful for knowing things like whether the viewport is initialized

Inherited from​

Viewport.viewportStatus

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:108


CameraViewPresentation​

readonly static CameraViewPresentation: ViewPresentationSelector

CameraViewPresentation is a view presentation selector that has all the camera related presentation selections, and would typically be used for choosing presentation information between two viewports showing the same type of orientation of a view, such as the CT, PT and fusion views in the same orientation view.

Inherited from​

Viewport.CameraViewPresentation

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:69


TransferViewPresentation​

readonly static TransferViewPresentation: ViewPresentationSelector

TransferViewPresentation is a view presentation selector that selects all the transfer function related attributes. It would typically be used for synchronizing different orientations of the same series, or for synchronizing two views of the same type of series such as a CT.

Inherited from​

Viewport.TransferViewPresentation

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:82

Accessors​

useCustomRenderingPipeline​

get static useCustomRenderingPipeline(): boolean

Returns​

boolean

Overrides​

Viewport.useCustomRenderingPipeline

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:123

Methods​

_getCorners()​

_getCorners(bounds): number[][]

Parameters​

• bounds: number[]

Returns​

number[][]

Inherited from​

Viewport._getCorners

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1889


_getEdges()​

_getEdges(bounds): [number[], number[]][]

Returns a list of edges for the imageData bounds, which are the cube edges in the case of volumeViewport edges. p1: front, bottom, left p2: front, top, left p3: back, bottom, left p4: back, top, left p5: front, bottom, right p6: front, top, right p7: back, bottom, right p8: back, top, right

Parameters​

• bounds: number[]

Bounds of the renderer

Returns​

[number[], number[]][]

Edges of the containing bounds

Inherited from​

Viewport._getEdges

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1985


_getFocalPointForResetCamera()​

_getFocalPointForResetCamera(centeredFocalPoint, previousCamera, __namedParameters): Point3

Parameters​

• centeredFocalPoint: Point3

• previousCamera: ICamera

• __namedParameters

• __namedParameters.resetPan: boolean = true

• __namedParameters.resetToCenter: boolean = true

Returns​

Point3

Inherited from​

Viewport._getFocalPointForResetCamera

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1902


_getOrientationVectors()​

protected _getOrientationVectors(orientation): OrientationVectors

Parameters​

• orientation: OrientationVectors | OrientationAxis

Returns​

OrientationVectors

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1645


_isInBounds()​

_isInBounds(point, bounds): boolean

Determines whether or not the 3D point position is inside the boundaries of the 3D imageData.

Parameters​

• point: Point3

3D coordinate

• bounds: number[]

Bounds of the image

Returns​

boolean

boolean

Inherited from​

Viewport._isInBounds

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1962


_removeActor()​

_removeActor(actorUID): void

Remove the actor from the viewport

Parameters​

• actorUID: string

The unique identifier for the actor.

Returns​

void

Inherited from​

Viewport._removeActor

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:535


addActor()​

addActor(actorEntry): void

Add an actor to the viewport including its id, its actor and slabThickness if defined

Parameters​

• actorEntry: ActorEntry

ActorEntry

  • actorEntry.uid - The unique identifier for the actor.
  • actorEntry.actor - The volume actor.
  • actorEntry.slabThickness - The slab thickness.

Returns​

void

Inherited from​

Viewport.addActor

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:598


addActors()​

addActors(actors, options): void

Add a list of actors (actor entries) to the viewport

Parameters​

• actors: ActorEntry[]

An array of ActorEntry objects.

• options = {}

• options.resetCamera?: boolean

Returns​

void

Inherited from​

Viewport.addActors

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:562


addVolumes()​

addVolumes(volumeInputArray, immediate, suppressEvents): Promise<void>

Creates and adds volume actors for all volumes defined in the volumeInputArray. For each entry, if a callback is supplied, it will be called with the new volume actor as input.

Parameters​

• volumeInputArray: IVolumeInput[]

The array of VolumeInputs which define the volumes to add.

• immediate: boolean = false

Whether the Viewport should be rendered as soon as volumes are added.

• suppressEvents: boolean = false

Returns​

Promise<void>

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1134


addWidget()​

addWidget(widgetId, widget): void

Parameters​

• widgetId: any

• widget: any

Returns​

void

Inherited from​

Viewport.addWidget

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:186


applyViewOrientation()​

protected applyViewOrientation(orientation, resetCamera): void

Parameters​

• orientation: OrientationVectors | OrientationAxis

• resetCamera: boolean = true

Returns​

void

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:138


canvasToWorld()​

canvasToWorld(canvasPos): Point3

canvasToWorld Returns the world coordinates of the given canvasPos projected onto the plane defined by the Viewport's vtkCamera's focal point and the direction of projection.

Parameters​

• canvasPos: Point2

The position in canvas coordinates.

Returns​

Point3

The corresponding world coordinates.

Overrides​

Viewport.canvasToWorld

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1494


clearDefaultProperties()​

clearDefaultProperties(volumeId?): void

Remove the global default properties of the viewport or remove default properties for a volumeId if specified

Parameters​

• volumeId?: string

If given, we remove the default properties only for this volumeId, if not the global default properties will be removed

Returns​

void

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:578


flip()​

flip(flipDirection): void

Flip the viewport along the desired axis

Parameters​

• flipDirection: FlipDirection

FlipDirection

Returns​

void

Overrides​

Viewport.flip

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1366


getActor()​

getActor(actorUID): ActorEntry

Get an actor by its UID

Parameters​

• actorUID: string

The unique ID of the actor.

Returns​

ActorEntry

An ActorEntry object.

Inherited from​

Viewport.getActor

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:473


getActorByIndex()​

getActorByIndex(index): ActorEntry

Get an actor by its index

Parameters​

• index: number

array index.

Returns​

ActorEntry

actorUID

Inherited from​

Viewport.getActorByIndex

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:516


getActors()​

getActors(): ActorEntry[]

Get all the actors in the viewport

Returns​

ActorEntry[]

An array of ActorEntry objects.

Inherited from​

Viewport.getActors

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:456


getActorUIDByIndex()​

getActorUIDByIndex(index): string

Get an actor UID by its index

Parameters​

• index: number

array index.

Returns​

string

actorUID

Inherited from​

Viewport.getActorUIDByIndex

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:504


getActorUIDs()​

getActorUIDs(): string[]

Returns an array of unique identifiers for all the actors in the viewport.

Returns​

string[]

An array of strings

Inherited from​

Viewport.getActorUIDs

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:464


getAllVolumeIds()​

getAllVolumeIds(): string[]

Returns an array of all volumeIds currently in the viewport.

Returns​

string[]

An array of strings representing all volumeIds.

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1818


getBounds()​

getBounds(): number[]

gets the visible bounds of the viewport in the world coordinate system

Returns​

number[]

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1356


getCamera()​

getCamera(): ICamera

Get the camera's current state

Returns​

ICamera

The camera object.

Inherited from​

Viewport.getCamera

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1378


getCameraNoRotation()​

protected getCameraNoRotation(): ICamera

Returns​

ICamera

Inherited from​

Viewport.getCameraNoRotation

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1335


getCanvas()​

getCanvas(): HTMLCanvasElement

Gets the target output canvas for the Viewport.

Returns​

HTMLCanvasElement

an HTMLCanvasElement.

Inherited from​

Viewport.getCanvas

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1316


getClippingPlanesForActor()​

getClippingPlanesForActor(actorEntry?): vtkPlane[]

Method to get the clipping planes of a given actor

Parameters​

• actorEntry?: ActorEntry

The actor entry (a specific type you'll define dependent on your code)

Returns​

vtkPlane[]

vtkPlanes - An array of vtkPlane objects associated with the given actor

Inherited from​

Viewport.getClippingPlanesForActor

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1649


getCurrentImageId()​

abstract getCurrentImageId(): string

Returns​

string

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1732


getCurrentImageIdIndex()​

getCurrentImageIdIndex(): number

Returns​

number

Inherited from​

Viewport.getCurrentImageIdIndex

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1180


getDefaultActor()​

getDefaultActor(): ActorEntry

Get the default actor

Returns​

ActorEntry

An actor entry.

Inherited from​

Viewport.getDefaultActor

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:448


getDefaultProperties()​

getDefaultProperties(volumeId?): VolumeViewportProperties

Retrieve the viewport default properties

Parameters​

• volumeId?: string

If given, we retrieve the default properties of a volumeId if it exists If not given,we return the global properties of the viewport

Returns​

VolumeViewportProperties

default viewport properties including voi, invert, interpolation type, colormap

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:941


getDisplayArea()​

getDisplayArea(): DisplayArea

Returns​

DisplayArea

Inherited from​

Viewport.getDisplayArea

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:944


getFrameOfReferenceUID()​

getFrameOfReferenceUID(): string

Returns​

string

Overrides​

Viewport.getFrameOfReferenceUID

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1370


getImageActor()​

getImageActor(volumeId?): vtkImageSlice

Retrieves an image actor from the viewport actors.

Parameters​

• volumeId?: string

Optional. The ID of the volume to find the corresponding image actor.

Returns​

vtkImageSlice

The image actor if found, otherwise null.

Inherited from​

Viewport.getImageActor

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:483


getImageData()​

getImageData(volumeId?): IImageData

Returns the image and its properties that is being shown inside the stack viewport. It returns, the image dimensions, image direction, image scalar data, vtkImageData object, metadata, and scaling (e.g., PET suvbw) Note: since the volume viewport supports fusion, to get the image data for a specific volume, use the optional volumeId argument.

Parameters​

• volumeId?: string

The volumeId of the volume to get the image for.

Returns​

IImageData

IImageData

Overrides​

Viewport.getImageData

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1412


getImageIds()​

getImageIds(volumeId?): string[]

Returns the list of image Ids for the current viewport

Parameters​

• volumeId?: string

volumeId

Returns​

string[]

list of strings for image Ids

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1713


getIntensityFromWorld()​

getIntensityFromWorld(point): number

Given a point in world coordinates, return the intensity at that point

Parameters​

• point: Point3

The point in world coordinates to get the intensity from.

Returns​

number

The intensity value of the voxel at the given point.

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1692


getPan()​

getPan(initialCamera): Point2

Helper function to return the current canvas pan value.

Parameters​

• initialCamera: ICamera = ...

Returns​

Point2

a Point2 containing the current pan values on the canvas, computed from the current camera, where the initial pan value is [0,0].

Inherited from​

Viewport.getPan

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1157


getProperties()​

getProperties(volumeId?): VolumeViewportProperties

Retrieve the viewport properties

Parameters​

• volumeId?: string

The volume id to get the properties for (if undefined, the first volume)

Returns​

VolumeViewportProperties

viewport properties including voi, interpolation type: TODO: slabThickness, invert

Overrides​

Viewport.getProperties

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:963


getRenderer()​

getRenderer(): vtkRenderer

Returns the vtkRenderer responsible for rendering the Viewport.

Returns​

vtkRenderer

The vtkRenderer for the Viewport.

Inherited from​

Viewport.getRenderer

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:244


getRenderingEngine()​

getRenderingEngine(): RenderingEngine

Returns the rendering engine driving the Viewport.

Returns​

RenderingEngine

The RenderingEngine instance.

Inherited from​

Viewport.getRenderingEngine

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:235


getRotation()​

getRotation(): number

Gets the rotation resulting from the value set in setRotation AND taking into account any flips that occurred subsequently from the camera provided or the viewport.

Returns​

number

the rotation resulting from the value set in setRotation AND taking into account any flips that occurred subsequently.

Overrides​

Viewport.getRotation

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1310


getSlabThickness()​

getSlabThickness(): number

Gets the largest slab thickness from all actors in the viewport.

Returns​

number

slabThickness - The slab thickness.

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1675


getSliceIndex()​

getSliceIndex(): number

Returns​

number

Overrides​

Viewport.getSliceIndex

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1456


getSliceViewInfo()​

getSliceViewInfo(): object

Returns​

object

height​

height: number

indexToSliceMatrix​

indexToSliceMatrix: mat4

sliceIndex​

sliceIndex: number

slicePlane​

slicePlane: number

sliceToIndexMatrix​

sliceToIndexMatrix: mat4

width​

width: number

Overrides​

Viewport.getSliceViewInfo

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:127


getViewPresentation()​

getViewPresentation(viewPresSel): ViewPresentation

Gets a view presentation information specifying HOW a viewport displays something, but not what is being displayed. See getViewReference to get information on WHAT is being displayed.

This is intended to have information on how an image is presented to the user, without specifying what image s displayed. All of this information is available externally, but this method combines the parts of this that are appropriate for remember or applying to other views, without necessarily needing to know what all the attributes are. That differs from methods like getCamera which fetch exact view details that are not likely to be identical between viewports as they change sizes or apply to different images.

Note that the results of this can be used on different viewports, for example, the pan values can be applied to a volume viewport showing a CT, and a stack viewport showing an ultrasound.

The selector allows choosing which view presentation attributes to return. Some default values are available from Viewport.CameraViewPresentation and Viewport.TransferViewPresentation

Parameters​

• viewPresSel: ViewPresentationSelector = ...

select which attributes to display.

Returns​

ViewPresentation

Inherited from​

Viewport.getViewPresentation

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1806


getViewReference()​

getViewReference(viewRefSpecifier): ViewReference

Gets a view target, allowing comparison between view positions as well as restoring views later.

Parameters​

• viewRefSpecifier: ViewReferenceSpecifier = {}

Returns​

ViewReference

Overrides​

Viewport.getViewReference

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:592


getViewReferenceId()​

getViewReferenceId(specifier): string

For a volume viewport, the reference id will be a URN starting with volumeId:<volumeId>, followed by additional arguments to specify the view orientation. This will end up being a unique string that identifies the view reference being shown. It is different from the view reference in that the values are all incorporated into a string to allow using it as a parameter key.

Parameters​

• specifier: ViewReferenceSpecifier = {}

Returns​

string

Overrides​

Viewport.getViewReferenceId

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1772


getVOIModifiedEventDetail()​

protected getVOIModifiedEventDetail(volumeId): VoiModifiedEventDetail

Parameters​

• volumeId: string

Returns​

VoiModifiedEventDetail

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:369


getVolumeId()​

getVolumeId(specifier?): string

Gets the volumeId to use for references. Returns undefined if the specified volume is NOT in this viewport.

Parameters​

• specifier?: ViewReferenceSpecifier

Returns​

string

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1738


getVtkActiveCamera()​

protected getVtkActiveCamera(): vtkSlabCamera | vtkCamera

Gets the active vtkCamera for the viewport.

Returns​

vtkSlabCamera | vtkCamera

vtk driven camera

Inherited from​

Viewport.getVtkActiveCamera

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1324


getWidget()​

getWidget(id): any

Parameters​

• id: any

Returns​

any

Inherited from​

Viewport.getWidget

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:190


getWidgets()​

getWidgets(): any[]

Returns​

any[]

Inherited from​

Viewport.getWidgets

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:194


getZoom()​

getZoom(compareCamera): number

Returns a current zoom level relative to the initial parallel scale originally applied to the image. That is, on initial display, the zoom level is 1. Computed as a function of the camera.

Parameters​

• compareCamera: ICamera = ...

Returns​

number

Inherited from​

Viewport.getZoom

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1240


hasImageURI()​

hasImageURI(imageURI): boolean

Parameters​

• imageURI: string

Returns​

boolean

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1627


hasVolumeId()​

hasVolumeId(volumeId): boolean

Checks if the viewport has a volume actor with the given volumeId

Parameters​

• volumeId: string

the volumeId to look for

Returns​

boolean

Boolean indicating if the volume is present in the viewport

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1379


hasVolumeURI()​

hasVolumeURI(volumeURI): boolean

Checks if the viewport has a volume with the given volumeURI.

Parameters​

• volumeURI: string

The URI of the volume to check for.

Returns​

boolean

A boolean indicating whether the viewport contains a volume with the given URI.

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1391


isReferenceViewable()​

isReferenceViewable(viewRef, options?): boolean

Find out if this viewport would show this view

Parameters​

• viewRef: ViewReference

• options?: ReferenceCompatibleOptions

allows specifying whether the view COULD display this with some modification - either navigation or displaying as volume.

Returns​

boolean

true if the target is compatible with this view

Overrides​

Viewport.isReferenceViewable

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:634


removeActors()​

removeActors(actorUIDs): void

Remove the actors with the given UIDs from the viewport

Parameters​

• actorUIDs: string[]

An array of actor UIDs to remove.

Returns​

void

Inherited from​

Viewport.removeActors

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:550


removeAllActors()​

removeAllActors(): void

Remove all actors from the renderer

Returns​

void

Inherited from​

Viewport.removeAllActors

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:630


removeVolumeActors()​

removeVolumeActors(actorUIDs, immediate): void

It removes the volume actor from the Viewport. If the volume actor is not in the viewport, it does nothing.

Parameters​

• actorUIDs: string[]

Array of actor UIDs to remove. In case of simple volume it will be the volume Id, but in case of Segmentation it will be {volumeId}-{representationType} since the same volume can be rendered in multiple representations.

• immediate: boolean = false

If true, the Viewport will be rendered immediately

Returns​

void

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1207


removeWidgets()​

removeWidgets(): void

Returns​

void

Inherited from​

Viewport.removeWidgets

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:198


render()​

render(): void

Renders the Viewport using the RenderingEngine.

Returns​

void

Inherited from​

Viewport.render

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:257


reset()​

reset(immediate): void

Resets the options the Viewport's defaultOptions

Parameters​

• immediate: boolean = false

If true, renders the viewport after the options are reset.

Returns​

void

Inherited from​

Viewport.reset

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:287


resetCamera()​

resetCamera(options?): boolean

Resets the camera based on the rendering volume(s) bounds. If resetPan and resetZoom are true it places the focal point at the center of the volume (or slice); otherwise, only the camera zoom and camera Pan or Zoom is reset for the current view.

Parameters​

• options?

The reset options

• options.resetPan?: boolean

If true, the camera focal point is reset to the center of the volume (slice)

• options.resetToCenter?: boolean

If true, the camera is reset to the center of the volume (slice)

• options.resetZoom?: boolean

If true, the camera zoom is reset to the default zoom

• options.storeAsInitialCamera?: boolean

If true, reset camera is stored as the initial camera (to allow differences to be detected for pan/zoom values)

Returns​

boolean

boolean

Inherited from​

Viewport.resetCamera

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:961


resetCameraNoEvent()​

protected resetCameraNoEvent(): void

Reset the camera to the default viewport camera without firing events

Returns​

void

Inherited from​

Viewport.resetCameraNoEvent

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:639


resetProperties()​

abstract resetProperties(volumeId?): void

Parameters​

• volumeId?: string

Returns​

void

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1811


resetSlabThickness()​

abstract resetSlabThickness(): void

Returns​

void

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1809


resetToDefaultProperties()​

resetToDefaultProperties(volumeId): void

Reset the viewport properties to the default values

Parameters​

• volumeId: string

Returns​

void

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:851


scroll()​

scroll(delta): void

Scrolls the viewport in the given direction/amount

Parameters​

• delta: number = 1

Returns​

void

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:660


setActors()​

setActors(actors): void

It removes all actors from the viewport and then adds the actors from the array.

Parameters​

• actors: ActorEntry[]

An array of ActorEntry objects.

Returns​

void

Inherited from​

Viewport.setActors

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:524


setBlendMode()​

abstract setBlendMode(blendMode, filterActorUIDs?, immediate?): void

Parameters​

• blendMode: BlendModes

• filterActorUIDs?: string[]

• immediate?: boolean

Returns​

void

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1798


setCamera()​

setCamera(cameraInterface, storeAsInitialCamera?): void

Set the camera parameters

Parameters​

• cameraInterface: ICamera

ICamera

• storeAsInitialCamera?: boolean

to set the provided camera as the initial one, used to compute differences for things like pan and zoom.

Returns​

void

Overrides​

Viewport.setCamera

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1460


setCameraClippingRange()​

protected setCameraClippingRange(): void

Returns​

void

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1452


setCameraNoEvent()​

protected setCameraNoEvent(camera): void

Sets the camera to the default viewport camera without firing events

Parameters​

• camera: ICamera

The camera to use for the viewport.

Returns​

void

Inherited from​

Viewport.setCameraNoEvent

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:649


setDataIds()​

setDataIds(_imageIds, _options?): void

This is a wrapper for setStack/setVideo/etc

Parameters​

• _imageIds: string[]

• _options?: ImageSetOptions

Returns​

void

Inherited from​

Viewport.setDataIds

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:2022


setDefaultProperties()​

setDefaultProperties(ViewportProperties, volumeId?): void

Update the default properties for the volume viewport on the volume

Parameters​

• ViewportProperties: VolumeViewportProperties

The properties to set

• volumeId?: string

The volume id to set the default properties for (if undefined, we set the global default viewport properties)

Returns​

void

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:562


setDisplayArea()​

setDisplayArea(displayArea, suppressEvents): void

Sets the camera to an initial bounds. If resetPan and resetZoom are true it places the focal point at the center of the volume (or slice); otherwise, only the camera zoom and camera Pan or Zoom is reset for the current view.

Parameters​

• displayArea: DisplayArea

The display area of interest.

• suppressEvents: boolean = false

If true, don't fire displayArea event.

Returns​

void

Inherited from​

Viewport.setDisplayArea

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:718


setDisplayAreaFit()​

protected setDisplayAreaFit(displayArea): void

This applies a display area with a fit of the provided area to the available area. The zoom level is controlled by the imageArea parameter, which is a pair of percentage width in the horizontal and vertical dimension is scaled to fit the displayable area. Both values are taken into account, and the scaling is set so that both fractions of the image area are visible.

The panning is controlled by the imageCanvasPoint, which has two values, teh imagePoint and the canvasPoint. They are fractional values of the image and canvas respectively, with the panning set to display the image pixel at the given fraction on top of the canvas at the given percentage. The default points are 0.5.

For example, if the zoom level is [2,1], then the image is displayed such that at least twice the width is visible, and the height is visible. That will result in the image width being black, divided up on the left and right according to the imageCanvasPoint

Then, if the imagePoint is [1,0] and the canvas point is [1,0], then the right most edge of the image, at the top of the image, will be displayed at the right most edge of the canvas, at the top.

Parameters​

• displayArea: DisplayArea

Returns​

void

Inherited from​

Viewport.setDisplayAreaFit

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:855


setDisplayAreaScale()​

protected setDisplayAreaScale(displayArea): void

Sets the viewport to pixel scaling mode. Pixel scaling displays 1 image pixel as 1 (or scale) physical screen pixels. That is, a 1024x512 image will be displayed with scale=2, as 2048x1024 physical image pixels.

Parameters​

• displayArea: DisplayArea

display area to set

  • displayArea.scale - the number of physical pixels to display each image pixel in. Values < 1 mean smaller than physical, while values > 1 mean more than one pixel. Default is 1 Suggest using whole numbers or integer fractions (eg 1/3)

Returns​

void

Inherited from​

Viewport.setDisplayAreaScale

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:782


setFitToCanvasCamera()​

protected setFitToCanvasCamera(camera): void

Sets the provided camera as the displayArea camera. This allows computing differences applied later as compared to the initial position, for things like zoom and pan.

Parameters​

• camera: ICamera

to store as the initial value.

Returns​

void

Inherited from​

Viewport.setFitToCanvasCamera

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1145


setInitialCamera()​

protected setInitialCamera(camera): void

Sets the provided camera as the initial camera. This allows computing differences applied later as compared to the initial position, for things like zoom and pan.

Parameters​

• camera: ICamera

to store as the initial value.

Returns​

void

Inherited from​

Viewport.setInitialCamera

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1135


setInterpolationType()​

protected setInterpolationType(interpolationType, volumeId?): void

Sets the interpolation type. No-op in the base.

Parameters​

• interpolationType: InterpolationType

• volumeId?: string

Returns​

void

Overrides​

Viewport.setInterpolationType

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:427


setOptions()​

setOptions(options, immediate): void

Sets new options and (TODO) applies them.

Parameters​

• options: ViewportInputOptions

The viewport options to set.

• immediate: boolean = false

If true, renders the viewport after the options are set.

Returns​

void

Inherited from​

Viewport.setOptions

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:269


setOrientation()​

setOrientation(_orientation, _immediate): void

It sets the orientation for the camera, the orientation can be one of the following: axial, sagittal, coronal, default. Use the Enums.OrientationAxis to set the orientation. The "default" orientation is the orientation that the volume was acquired in (scan axis)

Parameters​

• _orientation: OrientationVectors | OrientationAxis

• _immediate: boolean = true

Returns​

void

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1225


setOrientationOfClippingPlanes()​

setOrientationOfClippingPlanes(vtkPlanes, slabThickness, viewPlaneNormal, focalPoint): void

Parameters​

• vtkPlanes: vtkPlane[]

• slabThickness: number

• viewPlaneNormal: Point3

• focalPoint: Point3

Returns​

void

Inherited from​

Viewport.setOrientationOfClippingPlanes

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1612


setPan()​

setPan(pan, storeAsInitialCamera): void

Sets the canvas pan value relative to the initial view position of 0,0 Modifies the camera to perform the pan.

Parameters​

• pan: Point2

• storeAsInitialCamera: boolean = false

Returns​

void

Inherited from​

Viewport.setPan

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1206


setProperties()​

setProperties(VolumeViewportProperties, volumeId?, suppressEvents?): void

Sets the properties for the volume viewport on the volume and if setProperties is called for the first time, the properties will also become the default one. (if fusion, it sets it for the first volume in the fusion)

Parameters​

• VolumeViewportProperties: VolumeViewportProperties = {}

The properties to set

• volumeId?: string

The volume id to set the properties for (if undefined, the first volume)

• suppressEvents?: boolean = false

If true, the viewport will not emit events

Returns​

void

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:787


setRendered()​

setRendered(): void

Indicate that the image has been rendered. This will set the viewportStatus to RENDERED if there is image data available to actually be rendered - otherwise, the rendering simply showed the background image.

Returns​

void

Inherited from​

Viewport.setRendered

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:220


setRotation()​

protected setRotation(rotation): void

Parameters​

• rotation: number

Returns​

void

Overrides​

Viewport.setRotation

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:508


setSlabThickness()​

abstract setSlabThickness(slabThickness, filterActorUIDs?): void

Parameters​

• slabThickness: number

• filterActorUIDs?: string[]

Returns​

void

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1804


setViewPresentation()​

setViewPresentation(viewPres): void

Applies the display area, zoom, pan and rotation from the view presentation. No-op is viewPres isn't defined.

Parameters​

• viewPres: ViewPresentation

Returns​

void

Inherited from​

Viewport.setViewPresentation

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1857


setViewReference()​

setViewReference(viewRef): void

Navigates to the specified view reference.

Parameters​

• viewRef: ViewReference

Returns​

void

Overrides​

Viewport.setViewReference

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:693


setVolumes()​

setVolumes(volumeInputArray, immediate, suppressEvents): Promise<void>

Creates volume actors for all volumes defined in the volumeInputArray. For each entry, if a callback is supplied, it will be called with the new volume actor as input. For each entry, if a blendMode and/or slabThickness is defined, this will be set on the actor's VolumeMapper.

Parameters​

• volumeInputArray: IVolumeInput[]

The array of VolumeInputs which define the volumes to add.

• immediate: boolean = false

Whether the Viewport should be rendered as soon as volumes are added.

• suppressEvents: boolean = false

Returns​

Promise<void>

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1061


setZoom()​

setZoom(value, storeAsInitialCamera): void

Zooms the image using parallel scale by updating the camera value.

Parameters​

• value: number

The relative parallel scale to apply. It is relative to the initial offsets value.

• storeAsInitialCamera: boolean = false

can be set to true to reset the camera after applying this zoom as the initial camera. A subsequent getZoom call will return "1", but the zoom will have been applied.

Returns​

void

Inherited from​

Viewport.setZoom

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1257


triggerCameraModifiedEventIfNecessary()​

triggerCameraModifiedEventIfNecessary(previousCamera, updatedCamera): void

Trigger camera modified event

Parameters​

• previousCamera: ICamera

• updatedCamera: ICamera

Returns​

void

Inherited from​

Viewport.triggerCameraModifiedEventIfNecessary

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1534


updateCameraClippingPlanesAndRange()​

updateCameraClippingPlanesAndRange(): void

Updates the camera's clipping planes and range.

Returns​

void

Inherited from​

Viewport.updateCameraClippingPlanesAndRange

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1554


updateClippingPlanesForActors()​

protected updateClippingPlanesForActors(updatedCamera): Promise<void>

Updates the actors clipping planes orientation from the camera properties

Parameters​

• updatedCamera: ICamera

ICamera

Returns​

Promise<void>

Inherited from​

Viewport.updateClippingPlanesForActors

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:1564


worldToCanvas()​

worldToCanvas(worldPos): Point2

Returns the canvas coordinates of the given worldPos projected onto the Viewport's canvas.

Parameters​

• worldPos: Point3

The position in world coordinates.

Returns​

Point2

The corresponding canvas coordinates.

Overrides​

Viewport.worldToCanvas

Defined in​

packages/core/src/RenderingEngine/BaseVolumeViewport.ts:1560


boundsRadius()​

static boundsRadius(bounds): number

Computes the bounds radius value

Parameters​

• bounds: number[]

Returns​

number

Inherited from​

Viewport.boundsRadius

Defined in​

packages/core/src/RenderingEngine/Viewport.ts:2006