DingiShapeOfflineRegion

 

@interface DingiShapeOfflineRegion
    : NSObject <DingiOfflineRegion, NSSecureCoding, NSCopying>

An offline region defined by a style URL, geographic shape, and range of zoom levels.

This class requires fewer resources than DingiTilePyramidOfflineRegion for irregularly shaped regions.

  • The shape for the geographic region covered by the downloaded tiles.

    Declaration

    Objective-C

    @property (readonly, nonatomic) DingiShape *_Nonnull shape;

    Swift

    var shape: DingiShape { get }

  • The minimum zoom level for which to download tiles and other resources.

    For more information about zoom levels, -[DingiMapView zoomLevel].

    Declaration

    Objective-C

    @property (readonly, nonatomic) double minimumZoomLevel;

    Swift

    var minimumZoomLevel: Double { get }

  • The maximum zoom level for which to download tiles and other resources.

    For more information about zoom levels, -[DingiMapView zoomLevel].

    Declaration

    Objective-C

    @property (readonly, nonatomic) double maximumZoomLevel;

    Swift

    var maximumZoomLevel: Double { get }

  • Initializes a newly created offline region with the given style URL, geometry, and range of zoom levels.

    This is the designated initializer for DingiShapeOfflineRegion.

    Declaration

    Objective-C

    - (nonnull instancetype)initWithStyleURL:(nullable NSURL *)styleURL
                                   shape:(nonnull DingiShape *)shape
                           fromZoomLevel:(double)minimumZoomLevel
                             toZoomLevel:(double)maximumZoomLevel;

    Swift

    init(styleURL: URL?, shape: DingiShape, fromZoomLevel minimumZoomLevel: Double, toZoomLevel maximumZoomLevel: Double)

    Parameters

    styleURL

    URL of the map style for which to download resources. The URL may be a full HTTP or HTTPS URL.
    shape

    The shape of the geographic region to be covered by the downloaded tiles.
    minimumZoomLevel

    The minimum zoom level to be covered by the downloaded tiles. This parameter should be set to at least 0 but no greater than the value of the maximumZoomLevel parameter. For each required tile source, if this parameter is set to a value less than the tile source’s minimum zoom level, the download covers zoom levels down to the tile source’s minimum zoom level.
    maximumZoomLevel

    The maximum zoom level to be covered by the downloaded tiles. This parameter should be set to at least the value of the minimumZoomLevel parameter. For each required tile source, if this parameter is set to a value greater than the tile source’s minimum zoom level, the download covers zoom levels up to the tile source’s maximum zoom level.