@turf/nearest-point
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turf nearest-point module
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text/typescript
import { Feature, Point, FeatureCollection } from 'geojson';
import { Coord, Units } from '@turf/helpers';
interface NearestPoint extends Feature<Point> {
properties: {
featureIndex: number;
distanceToPoint: number;
[key: string]: any;
};
}
/**
* Takes a reference {@link Point|point} and a FeatureCollection of Features
* with Point geometries and returns the
* point from the FeatureCollection closest to the reference. This calculation
* is geodesic.
*
* @function
* @param {Coord} targetPoint the reference point
* @param {FeatureCollection<Point>} points against input point set
* @param {Object} [options={}] Optional parameters
* @param {string} [options.units='kilometers'] the units of the numeric result
* @returns {Feature<Point>} the closest point in the set to the reference point
* @example
* 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';
*/
declare function nearestPoint(targetPoint: Coord, points: FeatureCollection<Point>, options?: {
units?: Units;
}): NearestPoint;
export { type NearestPoint, nearestPoint as default, nearestPoint };