@turf/nearest-point

@turf/nearest-point

nearestPoint

Takes a reference point and a FeatureCollection of Features with Point geometries and returns the point from the FeatureCollection closest to the reference. This calculation is geodesic.

Parameters

• targetPoint Coord the reference point

• points FeatureCollection<Point> against input point set

• options Object Optional parameters (optional, default {})

  • options.units Units the units of the numeric result. Supports all valid Turf Units. (optional, default 'kilometers')

Examples

var targetPoint = turf.point([28.965797, 41.010086], {"marker-color": "#0F0"});
var points = turf.featureCollection([
    turf.point([28.973865, 41.011122]),
    turf.point([28.948459, 41.024204]),
    turf.point([28.938674, 41.013324])
]);

var nearest = turf.nearestPoint(targetPoint, points);

//addToMap
var addToMap = [targetPoint, points, nearest];
nearest.properties['marker-color'] = '#F00';

Returns Feature<Point> the closest point in the set to the reference point

This module is part of the Turfjs project, an open source module collection dedicated to geographic algorithms. It is maintained in the Turfjs/turf repository, where you can create PRs and issues.

Installation

Install this single module individually:

$ npm install @turf/nearest-point

Or install the all-encompassing @turf/turf module that includes all modules as functions:

$ npm install @turf/turf

Similar packages

Other packages similar to @turf/nearest-point

geolib

Geolib is a library for geospatial calculations. It provides functions to calculate distances, find the nearest point, and more. Compared to @turf/nearest-point, Geolib offers a broader range of geospatial functions but may not be as specialized in geospatial analysis as the Turf.js library.

leaflet-knn

Leaflet-KNN is a plugin for the Leaflet library that provides k-nearest neighbor search functionality. It is useful for finding the nearest points on a map. While it offers similar functionality to @turf/nearest-point, it is more tightly integrated with the Leaflet mapping library.