Package com.massifmaps.rastertiles

Class ElevationDecoder

java.lang.Object

com.massifmaps.rastertiles.ElevationDecoder

Direct Known Subclasses:

MapBoxElevationDataDecoder, TerrariumElevationDataDecoder

public class ElevationDecoder
extends Object

Abstract base class for raster elevation decoders.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)	Checks if this object is equal to the specified object.
static String	getENCODING_KEY()	The meta data key naming the DEM pixel encoding, "mapbox" or "terrarium".
float	getMinimumHeightScale()
int	hashCode()	Returns the hash value of this object.
static ElevationDecoder	resolve(SWIGTYPE_p_std__shared_ptrT_massif__TileData_t tileData, SWIGTYPE_p_std__shared_ptrT_massif__TileDataSource_t dataSource, ElevationDecoder preferred)	Resolves the decoder for one elevation tile: the tile's own "dem_encoding" first - two sources of different encodings can sit behind one OrderedTileDataSource, and only the tile knows which answered - then the source's, then 'preferred', then MapBox. Both arguments may be null.

Methods inherited from class java.lang.Object

clone, getClass, notify, notifyAll, toString, wait, wait, wait

Method Details

equals

public boolean equals(Object obj)

Checks if this object is equal to the specified object.

Overrides:

equals in class Object

Parameters:

obj - The reference object.

Returns:

True when objects are equal, false otherwise.

hashCode

public int hashCode()

Returns the hash value of this object.

Overrides:

hashCode in class Object

Returns:

The hash value of this object.

getMinimumHeightScale

public float getMinimumHeightScale()

getENCODING_KEY

public static String getENCODING_KEY()

The meta data key naming the DEM pixel encoding, "mapbox" or "terrarium".

resolve

public static ElevationDecoder resolve(SWIGTYPE_p_std__shared_ptrT_massif__TileData_t tileData,
 SWIGTYPE_p_std__shared_ptrT_massif__TileDataSource_t dataSource,
 ElevationDecoder preferred)

Resolves the decoder for one elevation tile: the tile's own "dem_encoding" first - two
sources of different encodings can sit behind one OrderedTileDataSource, and only the
tile knows which answered - then the source's, then 'preferred', then MapBox.
Both arguments may be null. The returned decoders are shared singletons.

Parameters:

tileData - The loaded elevation tile, or null.

dataSource - The elevation data source, or null.

preferred - The decoder the caller was configured with, or null.

Returns:

The decoder to decode this tile with. Never null.