MLNShapeSource class

MLNShapeSource is a map content source that supplies vector shapes to be shown on the map. The shapes may be instances of MLNShape or MLNShape, or they may be defined by local or external GeoJSON code. A shape source is added to an MLNStyle object along with an MLNStyle object. The vector style layer defines the appearance of any content supplied by the shape source. You can update a shape source by setting its shape or URL property.

MLNShapeSource is optimized for data sets that change dynamically and fit completely in memory. For large data sets that do not fit completely in memory, use the MLNComputedShapeSource or MLNComputedShapeSource class.

Each geojson source defined by the style JSON file is represented at runtime by an MLNShapeSource object that you can use to refine the map’s content and initialize new style layers. You can also add and remove sources dynamically using methods such as MLNStyle/addSource: and MLNStyle/sourceWithIdentifier:.

Any vector style layer initialized with a shape source should have a nil value in its sourceLayerIdentifier property.

Example

var coordinates: [CLLocationCoordinate2D] = [
CLLocationCoordinate2D(latitude: 37.77, longitude: -122.42),
CLLocationCoordinate2D(latitude: 38.91, longitude: -77.04),
]
let polyline = MLNPolylineFeature(coordinates: &coordinates, count: UInt(coordinates.count))
let source = MLNShapeSource(identifier: "lines", features: [polyline], options: nil)
mapView.style?.addSource(source)

Related examples

TODO: Cluster point data TODO: Use images to cluster point data TODO: Add live data Learn how to add data to your map using this MLNSource object.