class.NullController

API > NullController

Class: NullController

Null type camera motion controller.

Remarks

This controller is completely passive and will not overwrite/modify any camera render state.

Extends

• BaseController

Constructors

constructor

new NullController(input): NullController

Parameters

Parameter	Type	Description
input	ControllerInput	The input source.

Returns

NullController

Overrides

BaseController.constructor

Source

@novorender/web_app/controller/null.ts:19

Properties

input

readonly input: ControllerInput

The input source for this controller.

Inherited from

BaseController.input

Source

@novorender/web_app/controller/base.ts:48

---

kind

kind: "null"

The controller type id.

Overrides

BaseController.kind

Source

@novorender/web_app/controller/null.ts:13

---

projection

projection: undefined = undefined

The camera projection kind.

See

RenderStateCamera.kind.

Overrides

BaseController.projection

Source

@novorender/web_app/controller/null.ts:14

Accessors

axes

get axes(): ControllerAxes

The input axes

Returns

ControllerAxes

Inherited from

BaseController.axes

Source

@novorender/web_app/controller/base.ts:55

See

ControllerInput.axes

---

currentFlyTo

get currentFlyTo(): undefined | Orientation

The current fly-to state, if any.

Returns

undefined | Orientation

Inherited from

BaseController.currentFlyTo

Source

@novorender/web_app/controller/base.ts:109

---

generation

get generation(): number

Camera controller state generation.

Returns

number

Inherited from

BaseController.generation

Source

@novorender/web_app/controller/base.ts:29

Remarks

If the controller state changes, the generation count will be incremented once every call to renderStateChanges. This can be used to detect changes by comparing to a local generation count. The count is wrapped at 0xffffffff, so make sure you use != comparison and not < comparison.

---

hasShift

get hasShift(): boolean

The input shift button state.

Returns

boolean

Inherited from

BaseController.hasShift

Source

@novorender/web_app/controller/base.ts:104

See

ControllerInput.hasShift

---

height

get height(): number

The input element height.

Returns

number

Inherited from

BaseController.height

Source

@novorender/web_app/controller/base.ts:76

See

ControllerInput.height

---

moving

get moving(): boolean

Whether the camera is currently considered moving or not.

Returns

boolean

Inherited from

BaseController.moving

Source

@novorender/web_app/controller/base.ts:62

See

View.isIdleFrame

---

multiplier

get multiplier(): number

The input multiplier.

Returns

number

Inherited from

BaseController.multiplier

Source

@novorender/web_app/controller/base.ts:83

See

ControllerInput.multiplier

---

pointerTable

get pointerTable(): readonly TouchContactPoint[]

The input pointer table.

Returns

readonly TouchContactPoint[]

Inherited from

BaseController.pointerTable

Source

@novorender/web_app/controller/base.ts:97

See

ControllerInput.touchPoints

---

width

get width(): number

The input element width.

Returns

number

Inherited from

BaseController.width

Source

@novorender/web_app/controller/base.ts:69

See

ControllerInput.width

---

zoomPos

get zoomPos(): number[]

The input zoom position.

Returns

number[]

Inherited from

BaseController.zoomPos

Source

@novorender/web_app/controller/base.ts:90

See

ControllerInput.zoomPos

Methods

animate

animate(elapsedTime): void

Apply time sensitive changes to controller state.

Parameters

Parameter	Type	Description
elapsedTime	number	The # of milliseconds elapsed since the last update.

Returns

void

Inherited from

BaseController.animate

Source

@novorender/web_app/controller/base.ts:136

Remarks

Fly-to animations happens here, as well as motion based on keyboard pressed-state, such as the WASD keys.

---

attach

attach(): void

Attach this controller to the input object

Returns

void

Inherited from

BaseController.attach

Source

@novorender/web_app/controller/base.ts:193

---

autoFit

autoFit(center, radius): void

Attempt to fit controller position such that the specified bounding sphere is brought into view.

Parameters

Parameter	Type	Description
center	ReadonlyVec3	The center of the bounding sphere, in world space.
radius	number	The radius of the bounding sphere, in world space.

Returns

void

Overrides

BaseController.autoFit

Source

@novorender/web_app/controller/null.ts:35

---

changed

protected changed(): void

Signal changes to internal state.

Returns

void

Inherited from

BaseController.changed

Source

@novorender/web_app/controller/base.ts:34

---

init

init(params): void

Initialize controller from parameters.

Parameters

Parameter	Type
params	ControllerInitParams

Returns

void

Overrides

BaseController.init

Source

@novorender/web_app/controller/null.ts:28

See

serialize

---

mouseButtonChanged

mouseButtonChanged(event): void | Promise\< void >

Handler for mouse buttons events.

Parameters

Parameter	Type
event	MouseEvent

Returns

void | Promise\< void >

Inherited from

BaseController.mouseButtonChanged

Source

@novorender/web_app/controller/base.ts:201

---

moveBegin

moveBegin(event): void | Promise\< void >

Handler for mouse/touch move events.

Parameters

Parameter	Type
event	MouseEvent | TouchEvent

Returns

void | Promise\< void >

Inherited from

BaseController.moveBegin

Source

@novorender/web_app/controller/base.ts:213

---

moveTo

moveTo( targetPosition, flyTime = 1000, rotation?): void

Move controller to specified position/rotation.

Parameters

Parameter	Type	Default value
targetPosition	ReadonlyVec3	undefined
flyTime	number	1000
rotation?	ReadonlyQuat	undefined

Returns

void

Inherited from

BaseController.moveTo

Source

@novorender/web_app/controller/base.ts:221

---

renderStateChanges

renderStateChanges(state, elapsedTime): undefined | RecursivePartial\< RenderState >

Retrieve the state changes to be applied to the specified render state.

Parameters

Parameter	Type	Description
state	RenderStateCamera	The baseline render state.
elapsedTime	number	The time elapsed since last call, in milliseconds.

Returns

undefined | RecursivePartial\< RenderState >

Inherited from

BaseController.renderStateChanges

Source

@novorender/web_app/controller/base.ts:236

---

resetFlyTo

protected resetFlyTo(): void

Returns

void

Inherited from

BaseController.resetFlyTo

Source

@novorender/web_app/controller/base.ts:113

---

serialize

serialize(): ControllerInitParams

Serialize the state of this controller into init parameters.

Returns

ControllerInitParams

Overrides

BaseController.serialize

Source

@novorender/web_app/controller/null.ts:23

See

init

---

setFlyTo

protected setFlyTo(flyTo): void

Initialize a fly-to transition.

Parameters

Parameter	Type	Description
flyTo	FlyToParams	The transition parameters

Returns

void

Inherited from

BaseController.setFlyTo

Source

@novorender/web_app/controller/base.ts:120

---

stateChanges

stateChanges(state?): Partial\< RenderStateCamera >

Retrieve changes to render state from derived class, if any.

Parameters

Parameter	Type	Description
state?	RenderStateCamera	The baseline state to apply changes to.

Returns

Partial\< RenderStateCamera >

Overrides

BaseController.stateChanges

Source

@novorender/web_app/controller/null.ts:41

See

View.modifyRenderState

Remarks

If there are no changes, the returned object will be empty, i.e. {}.

---

touchChanged

touchChanged(event): void | Promise\< void >

Handler for touch events.

Parameters

Parameter	Type
event	TouchEvent

Returns

void | Promise\< void >

Inherited from

BaseController.touchChanged

Source

@novorender/web_app/controller/base.ts:207

---

update

update(): void

Update internal controller state

Returns

void

Overrides

BaseController.update

Source

@novorender/web_app/controller/null.ts:38

---

zoomTo

zoomTo(boundingSphere, flyTime = 1000): void

Bring the specified bounding sphere into view.

Parameters

Parameter	Type	Default value
boundingSphere	BoundingSphere	undefined
flyTime	number	1000

Returns

void

Inherited from

BaseController.zoomTo

Source

@novorender/web_app/controller/base.ts:230

Remarks

This function will retain the current camera controller rotation.

---

assert

static assert(controller): asserts controller is NullController

NullController type assert function.

Parameters

Parameter	Type	Description
controller	BaseController	The controller to type assert.

Returns

asserts controller is NullController

Source

@novorender/web_app/controller/null.ts:55

---

getDistanceFromViewPlane

static protected getDistanceFromViewPlane( point, cameraPosition, cameraRotation): number

Compute the distance to a point from the specified view plane.

Parameters

Parameter	Type	Description
point	ReadonlyVec3	The point to measure distance too
cameraPosition	ReadonlyVec3	The position of the camera/view plane.
cameraRotation	ReadonlyQuat	The rotation of the camera/view plane.

Returns

number

A signed distance from the point to the view plane, i.e. positive for points in front of the plane and negative otherwise.

Inherited from

BaseController.getDistanceFromViewPlane

Source

@novorender/web_app/controller/base.ts:262

---

is

static is(controller): controller is NullController

NullController type guard function.

Parameters

Parameter	Type	Description
controller	BaseController	The controller to type guard.

Returns

controller is NullController

Source

@novorender/web_app/controller/null.ts:48