@turf/point-to-line-distance

@turf/point-to-line-distance

pointToLineDistance

Calculates the distance between a given point and the nearest point on a line. Sometimes referred to as the cross track distance.

Parameters

• pt (Feature<Point> | Array<number>) Feature or Geometry

• line Feature<LineString> GeoJSON Feature or Geometry

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

  • options.units string can be anything supported by turf/convertLength (ex: degrees, radians, miles, or kilometers) (optional, default "kilometers")
  • options.method string whether to calculate the distance based on geodesic (spheroid) or planar (flat) method. Valid options are 'geodesic' or 'planar'. (optional, default "geodesic")

Examples

var pt = turf.point([0, 0]);
var line = turf.lineString([[1, 1],[-1, 1]]);

var distance = turf.pointToLineDistance(pt, line, {units: 'miles'});
//=69.11854715938406

Returns number distance between point and line

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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/point-to-line-distance

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

$ npm install @turf/turf