Module: ol/interaction/MouseWheelZoom

Classes

MouseWheelZoom

Type Definitions

Mode{'trackpad'} {'wheel'}

Options{Object}

Properties:

Name	Type	Argument	Default	Description
condition	Condition	<optional>		A function that takes an MapBrowserEvent and returns a boolean to indicate whether that event should be handled. Default is always.
onFocusOnly	boolean	<optional>	false	When the map's target has a tabindex attribute set, the interaction will only handle events when the map has the focus.
maxDelta	number	<optional>	1	Maximum mouse wheel delta.
duration	number	<optional>	250	Animation duration in milliseconds.
timeout	number	<optional>	80	Mouse wheel timeout duration in milliseconds.
useAnchor	boolean	<optional>	true	Enable zooming using the mouse's location as the anchor. When set to false, zooming in and out will zoom to the center of the screen instead of zooming on the mouse's location.
constrainResolution	boolean	<optional>	false	If true, the mouse wheel zoom event will always animate to the closest zoom level after an interaction; false means intermediary zoom levels are allowed.