MGLCircleStyleAnnotation

 
@interface MGLCircleStyleAnnotation : MGLStyleAnnotation

An MGLCircleStyleAnnotation is a type of style layer annotation that renders one or more filled circles on the map.

To display a circle style annotation on a map, use one of the initializers below to create a circle style annotation object. Then, use -[MGLCircleAnnotationController add:] to add the annotation to a circle style annotation controller.

Example

func mapView(_ mapView: MGLMapView, didFinishLoading style: MGLStyle) {
   let circleAnnotationController = MGLCircleAnnotationController(mapView: self.mapView)
   let circle = MGLCircleStyleAnnotation(center: CLLocationCoordinate2D(latitude: 59.31, longitude: 18.06), radius: 3.0, color: .blue)
   circle.opacity = 0.5
   circleAnnotationController.add(circle)
}

  • Returns a new circle style annotation with a specified center.

    Declaration

    Objective-C

    - (nonnull instancetype)initWithCenter:(id)center;

    Swift

    init(center: Any!)

    Parameters

    center

    The coordinate at the center of the circle style annotation.

    Return Value

    An initialized circle style annotation at the specified coordinate.

  • Returns a new circle style annotation with a specified center and radius.

    Declaration

    Objective-C

    - (nonnull instancetype)initWithCenter:(id)center radius:(CGFloat)radius;

    Swift

    init(center: Any!, radius: CGFloat)

    Parameters

    center

    The coordinate at the center of the circle style annotation.
    radius

    The radius of the circle, measured in screen points.

    Return Value

    An initialized circle style annotation at the specified coordinate with a defined radius.

  • Returns a new circle style annotation with a specified center and radius.

    Declaration

    Objective-C

    - (nonnull instancetype)initWithCenter:(id)center
                                radius:(CGFloat)radius
                                 color:(nonnull UIColor *)color;

    Swift

    init(center: Any!, radius: CGFloat, color: UIColor)

    Parameters

    center

    The coordinate at the center of the circle style annotation.
    radius

    The radius of the circle, measured in screen points.
    color

    The fill color of the circle style annotation.

    Return Value

    An initialized circle style annotation at the specified coordinate with a defined radius and fill color.

  • The center of the circle style annotation.

    Declaration

    Objective-C

    @property (assign, readwrite, nonatomic) int center;

    Swift

    var center: Int32 { get set }

  • The radius of the circle style annotation, measured in screen points. Defaults to 5.

    This property corresponds to the circle-radius property in the Mapbox Style Specification.

    Declaration

    Objective-C

    @property (assign, readwrite, nonatomic) CGFloat circleRadius;

    Swift

    var circleRadius: CGFloat { get set }

  • The fill color of the circle style annotation. Defaults to black.

    This property corresponds to the circle-color property in the Mapbox Style Specification.

    Declaration

    Objective-C

    @property (assign, readwrite, nonatomic) UIColor *_Nonnull circleColor;

    Swift

    unowned(unsafe) var circleColor: UIColor { get set }

  • The opacity of the fill color associated with the circle style annotation, represented as a range of values between 0 and 1. Defaults to 1.

    This property corresponds to the circle-opacity property in the Mapbox Style Specification.

    Declaration

    Objective-C

    @property (assign, readwrite, nonatomic) CGFloat circleOpacity;

    Swift

    var circleOpacity: CGFloat { get set }

  • The width of the stroke or outline of the circle style annotation, measured in screen points. Defaults to 0.

    This property corresponds to the circle-stroke-width property in the Mapbox Style Specification.

    Declaration

    Objective-C

    @property (assign, readwrite, nonatomic) CGFloat circleStrokeWidth;

    Swift

    var circleStrokeWidth: CGFloat { get set }

  • The stroke or outline color of the circle style annotation. Defaults to black.

    This property corresponds to the circle-stroke-color property in the Mapbox Style Specification.

    Declaration

    Objective-C

    @property (assign, readwrite, nonatomic) UIColor *_Nonnull circleStrokeColor;

    Swift

    unowned(unsafe) var circleStrokeColor: UIColor { get set }

  • The opacity of the stroke or outline color of the circle style annotation, represented as a range of values between 0 and 1. Defaults to 1.

    This property corresponds to the circle-stroke-opacity property in the Mapbox Style Specification.

    Declaration

    Objective-C

    @property (assign, readwrite, nonatomic) CGFloat circleStrokeOpacity;

    Swift

    var circleStrokeOpacity: CGFloat { get set }

  • The amount to blur the circle style annotation, measured in screen points. Defaults to 0. A value of 1 blurs the circle style annotation such that only the centerpoint is shown at full opacity.

    This property corresponds to the circle-blur property in the Mapbox Style Specification.

    Declaration

    Objective-C

    @property (assign, readwrite, nonatomic) CGFloat circleBlur;

    Swift

    var circleBlur: CGFloat { get set }