Skip to main content
Version: 4.x

Class: CameraManagerHelper

Helper methods for implementing a camera manager.

Constructors​

new CameraManagerHelper()​

new CameraManagerHelper(): CameraManagerHelper

Returns​

CameraManagerHelper

Methods​

calculateCameraStateToFitBoundingBox()​

static calculateCameraStateToFitBoundingBox(camera, boundingBox, radiusFactor): object

Calculates camera position and target that allows to see the content of provided bounding box.

Parameters​

• camera: PerspectiveCamera

Used camera instance.

• boundingBox: Box3

Bounding box to be fitted.

• radiusFactor: number = 2

The ratio of the distance from camera to center of box and radius of the box.

Returns​

object

position​

position: Vector3

target​

target: Vector3

Defined in​

packages/camera-manager/src/CameraManagerHelper.ts:111

calculateNewRotationFromTarget()​

static calculateNewRotationFromTarget(camera, newTarget): Quaternion

Calculates camera rotation from target

Parameters​

• camera: PerspectiveCamera

Used Camera instance

• newTarget: Vector3

The target to compute rotation from

Returns​

Quaternion

New camera rotationg

Defined in​

packages/camera-manager/src/CameraManagerHelper.ts:70

calculateNewTargetFromRotation()​

static calculateNewTargetFromRotation(camera, rotation, currentTarget, position): Vector3

Calculates camera target based on new camera rotation.

Parameters​

• camera: PerspectiveCamera

Used camera instance.

• rotation: Quaternion

New camera rotation in quaternion form.

• currentTarget: Vector3

Current camera target.

• position: Vector3

New camera position.

Returns​

Vector3

Defined in​

packages/camera-manager/src/CameraManagerHelper.ts:43

updateCameraNearAndFar()​

static updateCameraNearAndFar(camera, boundingBox): void

Updates near and far plane of the camera based on the bounding box.

Parameters​

• camera: PerspectiveCamera

Used camera instance.

• boundingBox: Box3

Bounding box of all objects on the scene.

Returns​

void

Defined in​

packages/camera-manager/src/CameraManagerHelper.ts:80