MapFile class
/////////////////////////////////////////////////////////////////////////// A class for reading binary map files. The mapFile should be disposed if not needed anymore
- Inheritance
-
- Object
- Datastore
- MapDataStore
- MapFile
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- preferredLanguage → String?
-
the preferred language when extracting labels from this data store. The actual
implementation is up to the concrete implementation, which can also simply ignore
this setting.
finalinherited
- readBufferSource ↔ ReadbufferSource
-
latefinal
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- timestamp → int?
-
final
- zoomlevelRange ↔ ZoomlevelRange
-
getter/setter pair
Methods
-
dispose(
) → void -
override
-
extractLocalized(
String s) → String? -
Extracts substring of preferred language from multilingual string.
Example multilingual string: "Base\ren\bEnglish\rjp\bJapan\rzh_py\bPin-yin".inherited -
getBoundingBox(
) → Future< BoundingBox> -
Returns the area for which data is supplied.
override
-
getDataTimestamp(
Tile tile) → Future< int?> -
Returns the creation timestamp of the map file.
override
-
getMapfileHelper(
) → MapfileHelper - For debugging purposes only
-
getMapFileInfo(
) → MapfileInfo - @return the header data for the current map file.
-
getMapHeaderInfo(
) → MapHeaderInfo -
@return the metadata for the current map file. Make sure
lateOpenis already executed -
getMapLanguages(
) → List< String> ? - @return the map file supported languages (may be null).
-
getStartPosition(
) → Future< LatLong?> -
@return the default start position for the current map file. Make sure
lateOpenis already executedoverride -
getStartZoomLevel(
) → Future< int?> -
Gets the initial zoom level.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
processBlocks(
ReadbufferSource readBufferSource, QueryParameters queryParameters, SubFileParameter subFileParameter, BoundingBox boundingBox, MapfileSelector selector) → Future< DatastoreReadResult> - don't make this method private since we are using it in the example APP to analyze mapfiles
-
readLabels(
Tile upperLeft, Tile lowerRight) → Future< DatastoreReadResult> -
Reads data for an area defined by the tile in the upper left and the tile in
the lower right corner.
Precondition: upperLeft.tileX <= lowerRight.tileX && upperLeft.tileY <= lowerRight.tileY
override
-
readLabelsSingle(
Tile tile) → Future< DatastoreReadResult> -
Reads only labels for tile.
override
-
readMapData(
Tile upperLeft, Tile lowerRight) → Future< DatastoreReadResult> -
Reads data for an area defined by the tile in the upper left and the tile in
the lower right corner.
Precondition: upperLeft.tileX <= lowerRight.tileX && upperLeft.tileY <= lowerRight.tileY
override
-
readMapDataSingle(
Tile tile) → Future< DatastoreReadResult> -
Reads all map data for the area covered by the given tile at the tile zoom level.
override
-
readPoiData(
Tile upperLeft, Tile lowerRight) → Future< DatastoreReadResult?> -
Reads POI data for an area defined by the tile in the upper left and the tile in
the lower right corner.
This implementation takes the data storage of a MapFile into account for greater efficiency.
override
-
readPoiDataSingle(
Tile tile) → Future< DatastoreReadResult?> -
Reads only POI data for tile.
override
-
restrictToZoomRange(
int minZoom, int maxZoom) → void - Restricts returns of data to zoom level range specified. This can be used to restrict the use of this map data base when used in MultiMapDatabase settings.
-
supportsTile(
Tile tile) → Future< bool> -
Returns true if MapDatabase contains the given tile.
override
-
toString(
) → String -
A string representation of this object.
override
-
wayAsLabelTagFilter(
List< Tag> tags) → bool -
Returns true if a way should be included in the result set for readLabels()
By default only ways with names, house numbers or a ref are included in the result set
of readLabels(). This is to reduce the set of ways as much as possible to save memory.
@param tags the tags associated with the way
@return true if the way should be included in the result set
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Properties
- BITMASK_INDEX_OFFSET → int
-
Bitmask to extract the block offset from an index entry.
final
- BITMASK_INDEX_WATER → int
-
Bitmask to extract the water information from an index entry.
final
- complete → bool
-
for debugging purposes
final
- DEFAULT_START_ZOOM_LEVEL → int
-
Default start zoom level.
final
- INDEX_CACHE_SIZE → int
-
Amount of cache blocks that the index cache should store.
final
- INVALID_FIRST_WAY_OFFSET → String
-
Error message for an invalid first way offset.
final
- SIGNATURE_LENGTH_BLOCK → int
-
Length of the debug signature at the beginning of each block.
final