PolygonDataSource

public class PolygonDataSource
extension PolygonDataSource: NativeBase
extension PolygonDataSource: Hashable

Polygon data source allows the rendering engine access to the user provided polygons geometry and their attributes.

Polygon segments are rendered following the shortest path between their end points.

Note: This is a beta release of this feature, so there could be a few bugs and unexpected behavior. Related APIs may change for new releases without a deprecation process.

  • Called for each polygon, allowing inspection, removal or update of coordinates and attributes.

    Declaration

    Swift

    public typealias PolygonDataProcessor = (_ polygonAccessor: PolygonDataAccessor) -> Bool

    Parameters

    polygonAccessor

    the polygon data accessor.

    Return Value

    value indicating the result of the processing.

  • Adds a new polygon to the data source.

    Declaration

    Swift

    public func add(_ polygon: PolygonData)

    Parameters

    polygon

    Polygon to add.

  • Adds new polygons to the data source.

    Declaration

    Swift

    public func add(_ polygons: [PolygonData])

    Parameters

    polygons

    Polygons to add.

  • Removes all polygons from the data source.

    Declaration

    Swift

    public func removeAll()

  • Iterates through all the polygons from the data source and passes them to the given processor, one by one. The processor can update the polygon data.

    The iteration stops after all polygons have been processed or the processor returns false from the process call.

    Declaration

    Swift

    public func forEach(_ processor: @escaping PolygonDataSource.PolygonDataProcessor)

    Parameters

    processor

    Polygon processor.

  • Iterates through all the polygons from the data source and passes them to the given inspector, one by one. All polygons for which the inspector returns true get removed from the data source. The inspector cannot update the polygon data.

    Declaration

    Swift

    public func removeIf(_ inspector: @escaping PolygonDataSource.PolygonDataProcessor)

    Parameters

    inspector

    Polygon data processor.