PolygonState

PolygonState is an ObservableObject used by Polygon(state:).

Use it when a filled area changes shape, style, holes, z-index, or selection state after creation.

Public Properties

id: String
strokeColor: UIColor
strokeWidth: Double
fillColor: UIColor
geodesic: Bool
zIndex: Int
points: [GeoPointProtocol]
holes: [[GeoPointProtocol]]
extra: Any?
onClick: OnPolygonEventHandler?

Use alpha on fillColor or strokeColor for transparency.

let polygonState = PolygonState(
    points: outerRing,
    fillColor: UIColor.green.withAlphaComponent(0.25),
    holes: [innerRing]
)

Polygon(state: polygonState)

polygonState.strokeWidth = 3
polygonState.fillColor = UIColor.red.withAlphaComponent(0.2)

Updating Holes

holes is an array of rings inside the outer polygon:

polygonState.holes = [restrictedAreaRing]

Use alpha on fillColor for translucent regions. Keep points and holes in the coordinate order required by your data model.