PilotGaea 2D O'view
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    類別 Circle

    Circle geometry.

    Center.

    Radius.

    Layout.

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    索引

    方法

    unByKey clone getCenter getRadius getType intersectsExtent setCenter setCenterAndRadius setRadius getFirstCoordinate getLastCoordinate getLayout applyTransform translate getClosestPoint intersectsCoordinate getExtent rotate scale simplify transform get getKeys getProperties set setProperties unset changed dispatchEvent getRevision on once un unByKey

    構造函數

    constructor

    方法

    • 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

    • Make a complete copy of the geometry.

      回傳 ol.geom.Circle

      Clone.

    • Return the radius of the circle.

      回傳 number

      Radius.

    • 參數

      回傳 boolean

      stable

    • Set the center of the circle as coordinate.

      參數

      回傳 void

    • Set the center (as coordinate) and the radius (as number) of the circle.

      參數

      回傳 void

    • Set the radius of the circle. The radius is in the units of the projection.

      參數

      • radius: number

        Radius.

      回傳 void

    • 參數

      • deltaX: number
      • deltaY: number

      回傳 void

      stable

    • Returns true if this geometry includes the specified coordinate. If the coordinate is on the boundary of the geometry, returns false.

      參數

      回傳 boolean

      Contains coordinate.

    • Rotate the geometry around a given coordinate. This modifies the geometry coordinates in place.

      參數

      • angle: number

        Rotation angle in radians.

      • anchor: Coordinate

        The rotation center.

      回傳 void

    • Scale the geometry (with an optional origin). This modifies the geometry coordinates in place.

      參數

      • sx: number

        The scaling factor in the x-direction.

      • 可選opt_sy: number

        The scaling factor in the y-direction (defaults to sx).

      • 可選opt_anchor: Coordinate

        The scale origin (defaults to the center of the geometry extent).

      回傳 void

    • 函數

      Create a simplified version of this geometry. For linestrings, this uses the the Douglas Peucker algorithm. For polygons, a quantization-based simplification is used to preserve topology.

      參數

      • tolerance: number

        The tolerance distance for simplification.

      回傳 ol.geom.Geometry

      A new, simplified version of the original geometry.

    • Transform each coordinate of the geometry from one coordinate reference system to another. The geometry is modified in place. For example, a line will be transformed to a line and a circle to a circle. If you do not want the geometry modified in place, first clone() it and then use this function on the clone.

      參數

      回傳 ol.geom.Geometry

      This geometry. Note that original geometry is modified in place.

      stable

    • 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

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