Package Exports

@turf/kinks

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Readme

@turf/kinks

kinks

Takes a linestring, multi-linestring, multi-polygon, or polygon and returns points at all self-intersections.

Parameters

featureIn Feature<(LineString | MultiLineString | MultiPolygon | Polygon)> input feature

Examples

var poly = {
  "type": "Feature",
  "properties": {},
  "geometry": {
    "type": "Polygon",
    "coordinates": [[
      [-12.034835, 8.901183],
      [-12.060413, 8.899826],
      [-12.03638, 8.873199],
      [-12.059383, 8.871418],
      [-12.034835, 8.901183]
    ]]
  }
};

var kinks = turf.kinks(poly);

var resultFeatures = kinks.features.concat(poly);
var result = {
  "type": "FeatureCollection",
  "features": resultFeatures
};

//=result

Returns FeatureCollection<Point> self-intersections

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 module individually:

$ npm install @turf/kinks

Or install the Turf module that includes it as a function:

$ npm install @turf/turf