Javascript API 7.x

Class: ScrollZoom

bu.interaction. ScrollZoom

An interaction to control viewer fov/zoom by using the mouse wheel.

new ScrollZoom( [options])

Parameters:
Name Type Argument Description
options bu.interaction.ScrollZoomOptions <optional>

Options.
Source:
bu/interaction/scrollzoom.js
Fires:
  • ol.Object.Event#event:change:active

Extends

Members

parameters :Object.<string, bu.interaction.Dynamics>

The object that stores values for the parameters this interaction modifies. Property names of the object are the parameter names and values are objects of type Dynamics.

Type:
Inherited From:
Overrides:
Source:
bu/interaction/axisinteraction.js

Methods

getActive()

Return whether the interaction is currently active.

Inherited From:
Source:
bu/interaction/interaction.js
Returns:

true if the interaction is active, false otherwise.

Type
boolean

getElement()

Return the DOM element where the events are listened to.

Inherited From:
Source:
bu/interaction/interaction.js
Returns:
Type
Element

setActive(active)

Activate or deactivate the interaction.

Parameters:
Name Type Description
active boolean

Active.
Inherited From:
Source:
bu/interaction/interaction.js