ai.nextbillion.kits.turf

Class TurfJoins

java.lang.Object

ai.nextbillion.kits.turf.TurfJoins

public final class TurfJoins
extends java.lang.Object

Class contains methods that can determine if points lie within a polygon or not.

See Also:

Turf documentation

Method Summary

Modifier and Type	Method and Description
static boolean	inside(ai.nextbillion.kits.geojson.Point point, ai.nextbillion.kits.geojson.MultiPolygon multiPolygon) Takes a Point and a MultiPolygon and determines if the point resides inside the polygon.
static boolean	inside(ai.nextbillion.kits.geojson.Point point, ai.nextbillion.kits.geojson.Polygon polygon) Takes a Point and a Polygon and determines if the point resides inside the polygon.
static ai.nextbillion.kits.geojson.FeatureCollection	pointsWithinPolygon(ai.nextbillion.kits.geojson.FeatureCollection points, ai.nextbillion.kits.geojson.FeatureCollection polygons) Takes a FeatureCollection of Point and a FeatureCollection of Polygon and returns the points that fall within the polygons.

Methods inherited from class java.lang.Object

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

Method Detail

inside

public static boolean inside(ai.nextbillion.kits.geojson.Point point,
                             ai.nextbillion.kits.geojson.Polygon polygon)

Takes a Point and a Polygon and determines if the point resides inside the polygon. The polygon can be convex or concave. The function accounts for holes.

Parameters:

point - which you'd like to check if inside the polygon

polygon - which you'd like to check if the points inside

Returns:

true if the Point is inside the Polygon; false if the Point is not inside the Polygon

See Also:

Turf Inside documentation

inside

public static boolean inside(ai.nextbillion.kits.geojson.Point point,
                             ai.nextbillion.kits.geojson.MultiPolygon multiPolygon)

Takes a Point and a MultiPolygon and determines if the point resides inside the polygon. The polygon can be convex or concave. The function accounts for holes.

Parameters:

point - which you'd like to check if inside the polygon

multiPolygon - which you'd like to check if the points inside

Returns:

true if the Point is inside the MultiPolygon; false if the Point is not inside the MultiPolygon

See Also:

Turf Inside documentation

pointsWithinPolygon

public static ai.nextbillion.kits.geojson.FeatureCollection pointsWithinPolygon(ai.nextbillion.kits.geojson.FeatureCollection points,
                                                                                ai.nextbillion.kits.geojson.FeatureCollection polygons)

Takes a FeatureCollection of Point and a FeatureCollection of Polygon and returns the points that fall within the polygons.

Parameters:

points - input points.

polygons - input polygons.

Returns:

points that land within at least one polygon.