# CameraController

The default camera controller extension that comes with the viewer package. Includes toggleable perspective and orthographic camera projections.

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Accessors

aspect	controls	enabled	fieldOfView
renderingCamera

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Methods

disableRotations	enableRotations	on	removeListener
setCameraPlanes	setCameraView	setOrthoCameraOn	setPerspectiveCameraOn
toggleCameras

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Typedefs

CameraEvent	CameraEventPayload	CameraProjection	CanonicalView
InlineView	PolarView

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Accessors

# aspect

get aspect(): number

Gets the current display aspect ratio

Returns: number

# controls

get controls()

Gets the current underlying camera controller implementation. Typically an external library.

WARNING

Currently it exists for backwards compatibility. Will deprecate in future iterations!

Returns: any

# enabled

get enabled(): boolean
set enabled(val: boolean)

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Gets or sets whether this extension is enabled.

TIP

Extensions typically need to support being turned on/off with no impact on potentially other active extensions.

Returns: boolean

# fieldOfView

get fieldOfView(): number
set fieldOfView(value: number)

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Gets or sets the perspective camera's field of view.

Returns: number

# renderingCamera

get renderingCamera(): PerspectiveCamera | OrthographicCamera
set renderingCamera(value: PerspectiveCamera | OrthographicCamera)

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Gets or sets the current rendering camera.

Returns: number

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Methods

# disableRotations

disableRotations(): void

Disables all camera controls rotation capabilities.

Returns: void

# enableRotations

enableRotations(): void

Enables all camera controls rotation capabilities.

Returns: void

# on

on<T extends CameraEvent>(
  eventType: T,
  listener: (arg: CameraEventPayload[T]) => void
): void

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Function for subscribing to camera events.

Parameters

eventType: CameraEvent
handler: The handler for the events

Returns: void

# removeListener

removeListener(e: CameraEvent, handler: (data: unknown) => void)

Function for un-subscribing from camera events.

Parameters

e: CameraEvent
handler: The handler for the events to unsubscribe

Returns: void

# setCameraPlanes

setCameraPlanes(targetVolume: Box3, offsetScale: number = 1)

Function that adapts the camera's near and far clipping planes according to the current scene's volume. Parameters

targetVolume: Box3 (opens new window)
optional offsetScale: Works as a linear tolerance to the volume parameter

Returns: void

# setCameraPlanes

setCameraView(objectIds: string[], transition: boolean, fit?: number): void

Focuses the camera based on the volume defined by the received object ids list.

Parameters

objectIds: The object ids that make up the volume
transition: Whether or not to make the transition animated
optional fit: Linear tolerance

setCameraView(
    view: CanonicalView | SpeckleView | InlineView | PolarView,
    transition: boolean,
    fit?: number
  ): void

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Focuses the camera based on explicit view models provided.

Parameters

view: Explicit view of different possible type: CanonicalView, SpeckleView, InlineView
transition: Whether or not to make the transition animated
optional fit: Linear tolerance

setCameraView(bounds: Box3, transition: boolean, fit?: number): void

Focuses the camera based on explicit volume provided as Box3 (opens new window).

Parameters

bounds: Box3 (opens new window)
transition: Whether or not to make the transition animated
optional fit: Linear tolerance

Returns: void

# setOrthoCameraOn

setOrthoCameraOn(): void

Enables the orthographic camera.

Returns: void

# setPerspectiveCameraOn

setPerspectiveCameraOn(): void

Enables the perspective camera.

Returns: void

# toggleCameras

toggleCameras(): void

Switches between perspective and orthographic cameras.

Returns: void

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Typedefs

# CameraEvent

enum CameraEvent {
  Stationary = 'stationary',
  Dynamic = 'dynamic',
  FrameUpdate = 'frame-update',
  ProjectionChanged = 'projection-changed'
}

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Events the camera controller puts out.

Returns: void

# CameraEventPayload

interface CameraEventPayload {
  [CameraEvent.Stationary]: void
  [CameraEvent.Dynamic]: void
  [CameraEvent.FrameUpdate]: boolean
  [CameraEvent.ProjectionChanged]: CameraProjection
}

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Mapping CameraEvent types to handler argument type

Returns: void

# CameraProjection

enum CameraProjection {
  PERSPECTIVE,
  ORTHOGRAPHIC,
}

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Camera projection types.

Returns: void

# CanonicalView

type CanonicalView =
  | "front"
  | "back"
  | "up"
  | "top"
  | "down"
  | "bottom"
  | "right"
  | "left"
  | "3d"
  | "3D";

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Supported cannonical views.

Returns: void

# InlineView

type InlineView = {
  position: Vector3;
  target: Vector3;
};

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Inline, on-demand camera view.

position: The position of the camera
target: The point in space where the camera looks at Returns: void

# PolarView

type PolarView = {
  azimuth: number;
  polar: number;
  radius?: number;
  origin?: Vector3;
};

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Camera view defined in polar coordinates.

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