WorldWind Kotlin/earth.worldwind/[jvm]KeyboardControls

KeyboardControls

open class KeyboardControls(wwd: WorldWindow)

Keyboard navigation for the globe. Multiple navigation keys may be held at the same time — pan in two directions, zoom and tilt can all be active simultaneously, and each key has its own acceleration ramp. The constructor makes the host component focusable and requests focus on a mouse press so the controls work as soon as the user clicks the globe.

Constructors

KeyboardControls

constructor(wwd: WorldWindow)

Types

Companion

object Companion

Properties

accelerationRate

var accelerationRate: Double

Per-tick growth of the speed multiplier (50 ms tick × 0.05 ≈ 5x in 4 s).

isEnabled

var isEnabled: Boolean

maxSpeedMultiplier

var maxSpeedMultiplier: Double

Upper bound on the per-key speed multiplier.

panIncrement

var panIncrement: Float

tiltIncrement

var tiltIncrement: Double

zoomIncrement

var zoomIncrement: Float

Functions

release

open fun release()

Detach all listeners installed by this controller. Call when the WorldWindow is no longer in use to break references that would otherwise keep it (and the Swing Timer) retained.