PolygonAnnotationGroup

 
 @_spi(Experimental) public struct PolygonAnnotationGroup<Data, ID> : PrimitiveMapContent where Data : RandomAccessCollection, ID : Hashable

Displays a group of polygon annotations.

Always prefer to use annotation group over individual annotation if more than one annotation of the same type is displayed. The annotation group is usually more performant, since only one underlying layer is used to draw multiple annotations.

Annotation group allows to configure group-related options, such as clustering (only for point annotations) and others.

  • Undocumented

    Declaration

    Swift

     public init(_ data: Data, id: KeyPath<Data.Element, ID>, content: @escaping (Data.Element) -> PolygonAnnotation)

  • Undocumented

    Declaration

    Swift

     public init(_ data: Data, content: @escaping (Data.Element) -> PolygonAnnotation) where ID == Data.Element.ID, Data.Element : Identifiable

Common layer properties

  • Whether or not the fill should be antialiased.

    Declaration

    Swift

     public func fillAntialias(_ newValue: Bool) -> PolygonAnnotationGroup<Data, ID>

  • Emission strength

    Declaration

    Swift

     public func fillEmissiveStrength(_ newValue: Double) -> PolygonAnnotationGroup<Data, ID>

  • The geometry’s offset. Values are [x, y] where negatives indicate left and up, respectively.

    Declaration

    Swift

     public func fillTranslate(_ newValue: [Double]) -> PolygonAnnotationGroup<Data, ID>

  • Controls the frame of reference for fill-translate.

    Declaration

    Swift

     public func fillTranslateAnchor(_ newValue: FillTranslateAnchor) -> PolygonAnnotationGroup<Data, ID>

  • Defines relative position of the layers drawing the annotations managed by the current group.

    Note

    Layer position isn’t updatable. Only the first value passed to this function set will take effect.

    Declaration

    Swift

     public func layerPosition(_ newValue: LayerPosition) -> PolygonAnnotationGroup<Data, ID>