PilotGaea 3D O'view
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    類別 LineString

    Linestring geometry.

    Coordinates.

    Layout.

    stable

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    索引

    方法

    unByKey appendCoordinate clone forEachSegment getCoordinateAtM getCoordinates getCoordinateAt getLength getType intersectsExtent setCoordinates 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

    • Append the passed coordinate to the coordinates of the linestring.

      參數

      回傳 void

      stable

    • Make a complete copy of the geometry.

      回傳 LineString

      Clone.

      stable

    • Iterate over each segment, calling the provided callback. If the callback returns a truthy value the function returns that value immediately. Otherwise the function returns false.

      類型參數

      • T
      • S

      參數

      • callback: () => T

        Function called for each segment.

      • 可選opt_this: S

        The object to be used as the value of 'this' within callback.

      回傳 boolean | T

      Value.

    • Returns the coordinate at m using linear interpolation, or null if no such coordinate exists.

      opt_extrapolate controls extrapolation beyond the range of Ms in the MultiLineString. If opt_extrapolate is true then Ms less than the first M will return the first coordinate and Ms greater than the last M will return the last coordinate.

      參數

      • m: number

        M.

      • 可選opt_extrapolate: boolean

        Extrapolate. Default is false.

      回傳 Coordinate

      Coordinate.

      stable

    • Return the coordinates of the linestring.

      回傳 Coordinate[]

      Coordinates.

      stable

    • Return the coordinate at the provided fraction along the linestring. The fraction is a number between 0 and 1, where 0 is the start of the linestring and 1 is the end.

      參數

      • fraction: number

        Fraction.

      • 可選opt_dest: Coordinate

        Optional coordinate whose values will be modified. If not provided, a new coordinate will be returned.

      回傳 Coordinate

      Coordinate of the interpolated point.

    • Return the length of the linestring on projected plane.

      回傳 number

      Length (on projected plane).

      stable

    • 參數

      回傳 boolean

      stable

    • Set the coordinates of the linestring.

      參數

      回傳 void

      stable

    • 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

    • 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

    • 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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