PilotGaea 2D O'view
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    類別 Snap

    Handles snapping of vector features while modifying or drawing them. The features can come from a ol.source.Vector or ol.Collection Any interaction object that allows the user to interact with the features using the mouse can benefit from the snapping, as long as it is added before.

    The snap interaction modifies map browser event coordinate and pixel properties to force the snap to occur to any interaction that them.

    Example:

    var snap = new ol.interaction.Snap({
  source: source
});

    Options.

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    索引

    方法

    handleEvent unByKey addFeature removeFeature getActive getMap setActive get getKeys getProperties set setProperties unset changed dispatchEvent getRevision on once un unByKey

    構造函數

    constructor

    方法

    • Handles the map browser event and may call into other functions, if event sequences like e.g. 'drag' or 'down-up' etc. are detected.

      參數

      回傳 boolean

      false to stop event propagation.

    • Removes an event listener using the key returned by on() or once().

      參數

      • key: Object | Object[]

        The key returned by on() or once() (or an array of keys).

      回傳 void

      stable

    • Add a feature to the collection of features that we may snap to.

      參數

      • feature: ol.Feature

        Feature.

      • 可選opt_listen: boolean

        Whether to listen to the geometry change or not Defaults to true.

      回傳 void

    • Remove a feature from the collection of features that we may snap to.

      參數

      • feature: ol.Feature

        Feature

      • 可選opt_unlisten: boolean

        Whether to unlisten to the geometry change or not. Defaults to true.

      回傳 void

    • Return whether the interaction is currently active.

      回傳 boolean

      true if the interaction is active, false otherwise.

    • Get the map associated with this interaction.

      回傳 Map

      Map.

    • Activate or deactivate the interaction.

      參數

      • active: boolean

        Active.

      回傳 void

    • Gets a value.

      參數

      • key: string

        Key name.

      回傳 any

      Value.

      stable

    • Get a list of object property names.

      回傳 string[]

      List of property names.

      stable

    • Get an object of all property names and values.

      回傳 { [k: string]: any }

      Object.

      stable

    • Sets a value.

      參數

      • key: string

        Key name.

      • value: any

        Value.

      • 可選opt_silent: boolean

        Update without triggering an event.

      回傳 void

      stable

    • Sets a collection of key-value pairs. Note that this changes any existing properties and adds new ones (it does not remove any existing properties).

      參數

      • values: { [k: string]: any }

        Values.

      • 可選opt_silent: boolean

        Update without triggering an event.

      回傳 void

      stable

    • Unsets a property.

      參數

      • key: string

        Key name.

      • 可選opt_silent: boolean

        Unset without triggering an event.

      回傳 void

      stable

    • Increases the revision counter and dispatches a 'change' event.

      回傳 void

    • 函數

      Dispatches an event and calls all listeners listening for events of this type. The event parameter can either be a string or an Object with a type property.

      參數

      回傳 void

    • Get the version number for this object. Each time the object is modified, its version number will be incremented.

      回傳 number

      Revision.

    • Listen for a certain type of event.

      參數

      • type: string | string[]

        The event type or array of event types.

      • listener: Function

        The listener function.

      • 可選opt_this: Object

        The object to use as this in listener.

      回傳 Object | Object[]

      Unique key for the listener. If called with an array of event types as the first argument, the return will be an array of keys.

      stable

    • Listen once for a certain type of event.

      參數

      • type: string | string[]

        The event type or array of event types.

      • listener: Function

        The listener function.

      • 可選opt_this: Object

        The object to use as this in listener.

      回傳 Object | Object[]

      Unique key for the listener. If called with an array of event types as the first argument, the return will be an array of keys.

      stable

    • Unlisten for a certain type of event.

      參數

      • type: string | string[]

        The event type or array of event types.

      • listener: Function

        The listener function.

      • 可選opt_this: Object

        The object which was used as this by the listener.

      回傳 void

      stable

    • 函數

      Removes an event listener using the key returned by on() or once(). Note that using the ol.Observable.unByKey static function is to be preferred.

      參數

      • key: Object | Object[]

        The key returned by on() or once() (or an array of keys).

      回傳 void

      stable

    構造函數

    • 參數

      回傳 Snap

      Handles snapping of vector features while modifying or drawing them. The features can come from a ol.source.Vector or ol.Collection Any interaction object that allows the user to interact with the features using the mouse can benefit from the snapping, as long as it is added before.

      The snap interaction modifies map browser event coordinate and pixel properties to force the snap to occur to any interaction that them.

      Example:

      var snap = new ol.interaction.Snap({
  source: source
});

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    構造函數