Package com.foursquare.presto.h3

Class IndexingFunctions

java.lang.Object

com.foursquare.presto.h3.IndexingFunctions

public final class IndexingFunctions
extends Object

Wraps https://h3geo.org/docs/api/indexing

Constructor Summary

Constructors

Constructor	Description
IndexingFunctions()

Method Summary

Modifier and Type	Method	Description
static io.airlift.slice.Slice	cellToBoundary(long h3)	Wraps H3Core.cellToBoundary(long).
static io.airlift.slice.Slice	cellToLatLng(long h3)	Wraps H3Core.cellToLatLng(long).
static Long	latLngToCell(double lat, double lng, long res)	Function wrapping H3Core.latLngToCell(double, double, int)
static Long	latLngToCell(io.airlift.slice.Slice pointSlice, long res)	Function wrapping H3Core.latLngToCell(double, double, int)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

IndexingFunctions

public IndexingFunctions()

Method Details

latLngToCell

public static Long latLngToCell(double lat,
double lng,
long res)

Function wrapping H3Core.latLngToCell(double, double, int)

latLngToCell

public static Long latLngToCell(io.airlift.slice.Slice pointSlice,
long res)

Function wrapping H3Core.latLngToCell(double, double, int)

cellToLatLng

public static io.airlift.slice.Slice cellToLatLng(long h3)

Wraps H3Core.cellToLatLng(long). Produces a row of latitude, longitude degrees.

cellToBoundary

public static io.airlift.slice.Slice cellToBoundary(long h3)

Wraps H3Core.cellToBoundary(long). Produces a row of latitude, longitude degrees interleaved as (lat0, lng0, lat1, lng1, ..., latN, lngN).