Enum Class LayerConfiguration.Feature

java.lang.Object
java.lang.Enum<LayerConfiguration.Feature>
com.here.sdk.core.engine.LayerConfiguration.Feature
All Implemented Interfaces:
Serializable, Comparable<LayerConfiguration.Feature>, Constable
Enclosing class:
LayerConfiguration

public static enum LayerConfiguration.Feature extends Enum<LayerConfiguration.Feature>

Defines a list of possible map data features that can be enabled / disabled. See SDKOptions.layerConfiguration

Following features are enabled by default:

All other features are disabled, by default.

Each feature enables a set of OCM layer groups to be downloaded by sdk.maploader.MapDownloader. Detailed description of each layer group available in the HERE Optimized Client Map Developer Guide

Following features are enabled by default for implicit prefetch:

Implicit prefetch downloads map content for implicit prefetch features within a view port currently showed by MapView. Explicit prefetching is done using sdk.prefetcher.RoutePrefetcher and sdk.prefetcher.PolygonPrefetcher.

Feature might have more than one layer group predefined to enable full experience. For example, NAVIGATION requires routing attributes, visual-friendly street names, maneuvers data and ability to interconnect those data sets.

The same map data is useful for different features, for example RENDERING uses Places data to present it on the MapView, while OFFLINE_SEARCH uses the same data to enable discoverability by name or category. Hence, features might have overlapping sets of enabled layer groups.

  • Enum Constant Details

    • DETAIL_RENDERING

      public static final LayerConfiguration.Feature DETAIL_RENDERING

      Additional rendering details like buildings. Only used for the MapView. When not set, the data will be excluded when downloading offline regions or prefetching areas that contain such data. However, during online usage such data may still be downloaded into the cache and shown. Increase of 11-16% is to be expected for map size, in case of enabling this feature.

      Feature enables following OCM layer groups:

      • "detailed_rendering"
    • OFFLINE_SEARCH_GLOBAL

      public static final LayerConfiguration.Feature OFFLINE_SEARCH_GLOBAL

      Map data used for global search indexing. This feature enables searches across broader geographic areas and improves both performance and accuracy by leveraging global search indices. By default this feature is disabled.

      Enables HERE SDK to use the enhanced offline search algorithm when OFFLINE_SEARCH_GLOBAL is present in LayerConfiguration.enabledFeatures and downloaded map regions exist with required OCM layer groups listed below. Note: Currently, this algorithm supports only offline maps stored in persistent (protected) storage.

      To prevent excessive map size growth, it is recommended to enable only one of OFFLINE_SEARCH_GLOBAL or OFFLINE_SEARCH at a time.

      Enabling this feature increases the size of downloaded map regions by approximately 11–16% when enabled via LayerConfiguration.enabledFeatures.

      Feature enables following OCM layer groups:

      • "search_global"
      • "search_data"

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

    • OFFLINE_ROUTING

      public static final LayerConfiguration.Feature OFFLINE_ROUTING

      Map data that is used to calculate routes. When not set, the OfflineRoutingEngine may not work properly when being used offline. Increase of 12-16.5% is to be expected for map size, but pay attention, that this feature is depended on other layer groups (e.g. navigation), so, in total is takes about 33-45 % of map size.

      Feature enables following OCM layer groups:

      • "rendering"
      • "navigation"
      • "routing"
      • "interop"
      • "car_offline_routing"
    • RENDERING

      public static final LayerConfiguration.Feature RENDERING

      A basic set of rendering features such as carto POIs. Increase of 16-22% is to be expected for map size, but pay attention, that this feature is depended on other layer groups (e.g. navigation), so, in total is takes about 21-29 % of map size.

      Feature enables following OCM layer groups:

      • "rendering"
    • TRUCK

      public static final LayerConfiguration.Feature TRUCK

      Map data that is used to calculate truck routes. When not set, the OfflineRoutingEngine may not work properly when being used to calculate truck routes. It is also used for map matching during truck navigation. When not set, truck navigation may not work properly when being used offline. Online truck navigation will still work when the device has an online connection. Increase of 0.7-1.1% is to be expected for map size, in case of enabling this feature.

      Feature enables following OCM layer groups:

      • "truck"
      • "long_truck_offline_routing"
      • "truck_offline_routing"
    • LANDMARKS_3D

      public static final LayerConfiguration.Feature LANDMARKS_3D

      Map data that is used to render 3D landmarks. When not set, the data will be excluded when downloading offline regions or prefetching areas that contain such data. When the landmarks MapFeature is set to be visible for a MapScene, 3D landmarks will still be loaded and visible during online usage. Increase of 2-3% is to be expected for map size, in case of enabling this feature.

      3D landmark rendering is enabled by default in grayscale on normal, logistics and topo schemes, and in textureless mode on lite schemes. However, when this map data feature is disabled, the 3D landmark rendering for the above schemes will not work in offline mode with the downloaded map packages. Feature enables following OCM layer groups:

      • "landmarks"
    • EV

      public static final LayerConfiguration.Feature EV

      Offline map data for EVChargingStation.

      Feature enables following OCM layer groups:

      • "ev_charging_station_rendering_premium"
      • "ev_charging_station_search_premium"
    • TRUCK_SERVICE_ATTRIBUTES

      public static final LayerConfiguration.Feature TRUCK_SERVICE_ATTRIBUTES

      Enables truck related attributes to be returned by Offline Search engine. Feature enables following OCM layer groups:

      • "truck_service_premium"
    • FUEL_STATION_ATTRIBUTES

      public static final LayerConfiguration.Feature FUEL_STATION_ATTRIBUTES

      Enables fuel attributes to be returned by Offline Search engine.

      Feature enables following OCM layer groups:

      • "fueling_station_premium"
    • OFFLINE_BUS_ROUTING

      public static final LayerConfiguration.Feature OFFLINE_BUS_ROUTING

      Map data that is used to calculate bus routes. When not set, the OfflineRoutingEngine may not be able to calculate routes with BusOptions.

      Feature enables following OCM layer groups:

      • "bus_offline_routing"
    • JUNCTION_VIEW_3X4

      public static final LayerConfiguration.Feature JUNCTION_VIEW_3X4

      Map data that provides junction view images and assets with aspect ratio 3x4. This will also provide common assets that do not depend on specific aspect ratio. By default this feature is disabled.

      Feature enables following OCM layer groups:

      • "junction_view_file_3x4"
      • "junction_view_asset_3x4"
      • "junction_view_asset_common"
    • JUNCTION_VIEW_16X9

      public static final LayerConfiguration.Feature JUNCTION_VIEW_16X9

      Map data that provides junction view images and assets with aspect ratio 16x9. This will also provide common assets that do not depend on specific aspect ratio. By default this feature is disabled.

      Feature enables following OCM layer groups:

      • "junction_view_file_16x9"
      • "junction_view_asset_16x9"
      • "junction_view_asset_common"
    • JUNCTION_SIGN_3X4

      public static final LayerConfiguration.Feature JUNCTION_SIGN_3X4

      Map data that provides junction sign images with aspect ratio 3x4. By default this feature is disabled.

      Feature enables following OCM layer groups:

      • "junction_sign_file_3x4"
    • JUNCTION_SIGN_3X5

      public static final LayerConfiguration.Feature JUNCTION_SIGN_3X5

      Map data that provides junction sign images with aspect ratio 3x5. By default this feature is disabled.

      Feature enables following OCM layer groups:

      • "junction_sign_file_3x5"
    • JUNCTION_SIGN_4X3

      public static final LayerConfiguration.Feature JUNCTION_SIGN_4X3

      Map data that provides junction sign images with aspect ratio 4x3. By default this feature is disabled.

      Feature enables following OCM layer groups:

      • "junction_sign_file_4x3"
    • JUNCTION_SIGN_5X3

      public static final LayerConfiguration.Feature JUNCTION_SIGN_5X3

      Map data that provides junction sign images with aspect ratio 5x3. By default this feature is disabled. Feature enables following OCM layer groups:

      • "junction_sign_file_5x3"
    • JUNCTION_SIGN_16X9

      public static final LayerConfiguration.Feature JUNCTION_SIGN_16X9

      Map data that provides junction sign images with aspect ratio 16x9. By default this feature is disabled.

      Feature enables following OCM layer groups:

      • "junction_sign_file_16x9"
    • TERRAIN

      public static final LayerConfiguration.Feature TERRAIN

      Map data that provides topography information. The related map feature with mode is enabled by default on topo map schemes. It is disabled by default on all other schemes.

      Note that this change has performance implications, with additional data consumption and impact on rendering frame rate. If performance is a concern, this feature can be disabled from the application side when loading the map scene. However, when this map data feature is disabled, the terrain rendering for the above schemes will not work in offline mode with the downloaded map packages. Feature enables following OCM layer groups:

      • "terrain"
    • DETAILED_TERRAIN

      public static final LayerConfiguration.Feature DETAILED_TERRAIN

      Map data that provides detailed topography information. By default this feature is disabled. Feature enables following OCM layer groups:

      • "detailed_terrain"
    • ADAS

      public static final LayerConfiguration.Feature ADAS

      Map data which provides ADAS information which includes slope, elevation and curvature information. By default this feature is disabled. Feature enables following OCM layer groups:

      • "adas"
    • EHORIZON

      public static final LayerConfiguration.Feature EHORIZON

      Map data which provides information about the parts of foreign segments in a tile, where a foreign segment is a segment that is stored in another tile but intersects the current tile. By default this feature is disabled. Feature enables following OCM layer groups:

      • "ehorizon"
    • RDS_TRAFFIC

      public static final LayerConfiguration.Feature RDS_TRAFFIC

      Map data that provides traffic broadcast functionality using RDS-TMC format. It should be used when there is no internet connection, so that the routing module can utilize traffic data coming over the radio channel to build a route in the offline mode. Feature enables following OCM layer groups:

      • "traffic"
  • Method Details

    • values

      public static LayerConfiguration.Feature[] values()
      Returns an array containing the constants of this enum class, in the order they are declared.
      Returns:
      an array containing the constants of this enum class, in the order they are declared
    • valueOf

      public static LayerConfiguration.Feature valueOf(String name)
      Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)
      Parameters:
      name - the name of the enum constant to be returned.
      Returns:
      the enum constant with the specified name
      Throws:
      IllegalArgumentException - if this enum class has no constant with the specified name
      NullPointerException - if the argument is null