Edit

turf.js

Example on how to use turf.js with OpenLayers.

Example showing the integration of turf.js with OpenLayers. The turf.js function along is used to display a marker every 200 meters along a street.

Copy 
index.html<!DOCTYPE html>
<html lang="en">
  <head>
    <title>turf.js</title>
    <!-- The line below is only needed for old environments like Internet Explorer and Android 4.x -->
    <script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=requestAnimationFrame,Element.prototype.classList,URL"></script>
    <script src="https://api.tiles.mapbox.com/mapbox.js/plugins/turf/v2.0.0/turf.min.js"></script>
    <style>
      .map {
        width: 100%;
        height:400px;
      }
    </style>
  </head>
  <body>
    <div id="map" class="map"></div>
    <script src="index.js"></script>
  </body>
</html>
Copy 
index.jsimport 'ol/ol.css';
import Map from 'ol/Map';
import View from 'ol/View';
import GeoJSON from 'ol/format/GeoJSON';
import {Tile as TileLayer, Vector as VectorLayer} from 'ol/layer';
import {fromLonLat} from 'ol/proj';
import {OSM, Vector as VectorSource} from 'ol/source';


var source = new VectorSource();
fetch('data/geojson/roads-seoul.geojson').then(function(response) {
  return response.json();
}).then(function(json) {
  var format = new GeoJSON();
  var features = format.readFeatures(json);
  var street = features[0];

  // convert to a turf.js feature
  var turfLine = format.writeFeatureObject(street);

  // show a marker every 200 meters
  var distance = 0.2;

  // get the line length in kilometers
  var length = turf.lineDistance(turfLine, 'kilometers');
  for (var i = 1; i <= length / distance; i++) {
    var turfPoint = turf.along(turfLine, i * distance, 'kilometers');

    // convert the generated point to a OpenLayers feature
    var marker = format.readFeature(turfPoint);
    marker.getGeometry().transform('EPSG:4326', 'EPSG:3857');
    source.addFeature(marker);
  }

  street.getGeometry().transform('EPSG:4326', 'EPSG:3857');
  source.addFeature(street);
});
var vectorLayer = new VectorLayer({
  source: source
});

var rasterLayer = new TileLayer({
  source: new OSM()
});

var map = new Map({
  layers: [rasterLayer, vectorLayer],
  target: document.getElementById('map'),
  view: new View({
    center: fromLonLat([126.980366, 37.526540]),
    zoom: 15
  })
});
Copy 
package.json{
  "name": "turf",
  "dependencies": {
    "ol": "6.1.1"
  },
  "devDependencies": {
    "parcel": "1.11.0"
  },
  "scripts": {
    "start": "parcel index.html",
    "build": "parcel build --experimental-scope-hoisting --public-url . index.html"
  }
}