TwoFingersTouchZoomRotateHandler

The TwoFingersTouchZoomRotateHandler allows the user to zoom and rotate the map by pinching on a touchscreen.

They can zoom with one finger by double tapping and dragging. On the second tap, hold the finger down and drag up or down to zoom in or out.

Methods

disable()

disable(): void

Disables the "pinch to rotate and zoom" interaction.

Returns

void

Example

map.touchZoomRotate.disable();

disableRotation()

disableRotation(): void

Disables the "pinch to rotate" interaction, leaving the "pinch to zoom" interaction enabled.

Returns

void

Example

map.touchZoomRotate.disableRotation();

enable()

enable(options?: boolean | AroundCenterOptions): void

Enables the "pinch to rotate and zoom" interaction.

Parameters

Returns

void

Example

map.touchZoomRotate.enable();
map.touchZoomRotate.enable({ around: 'center' });

enableRotation()

enableRotation(): void

Enables the "pinch to rotate" interaction.

Returns

void

Example

map.touchZoomRotate.enable();
map.touchZoomRotate.enableRotation();

isActive()

isActive(): boolean

Returns true if the handler is enabled and has detected the start of a zoom/rotate gesture.

Returns

boolean

true if the handler is active, false otherwise

isEnabled()

isEnabled(): boolean

Returns a Boolean indicating whether the "pinch to rotate and zoom" interaction is enabled.

Returns

boolean

true if the "pinch to rotate and zoom" interaction is enabled.

setZoomRate()

setZoomRate(zoomRate?: number): void

Sets the zoom rate of touch gestures.

Parameters

Returns

void

Example

Slow down touch zoom

map.touchZoomRotate.setZoomRate(0.5);

setZoomThreshold()

setZoomThreshold(zoomThreshold?: number): void

Sets the threshold before a pinch gesture starts zooming.

Parameters

Returns

void

Example

Make pinch zoom less sensitive

map.touchZoomRotate.setZoomThreshold(0.3);