Edit

WKT

Example of using the WKT parser.

Create features from geometries in WKT (Well Known Text) format.

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index.html<!DOCTYPE html>
<html lang="en">
  <head>
    <title>WKT</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>
    <style>
      .map {
        width: 100%;
        height:400px;
      }
    </style>
  </head>
  <body>
    <div id="map" class="map"></div>
    <script src="index.js"></script>
  </body>
</html>
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index.jsimport 'ol/ol.css';
import Map from 'ol/Map';
import View from 'ol/View';
import WKT from 'ol/format/WKT';
import {Tile as TileLayer, Vector as VectorLayer} from 'ol/layer';
import {OSM, Vector as VectorSource} from 'ol/source';

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

var wkt = 'POLYGON((10.689 -25.092, 34.595 ' +
    '-20.170, 38.814 -35.639, 13.502 ' +
    '-39.155, 10.689 -25.092))';

var format = new WKT();

var feature = format.readFeature(wkt, {
  dataProjection: 'EPSG:4326',
  featureProjection: 'EPSG:3857'
});

var vector = new VectorLayer({
  source: new VectorSource({
    features: [feature]
  })
});

var map = new Map({
  layers: [raster, vector],
  target: 'map',
  view: new View({
    center: [2952104.0199, -3277504.823],
    zoom: 4
  })
});
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package.json{
  "name": "wkt",
  "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"
  }
}