WKB

Example of using the WKB parser.

Create features from geometries in WKB (Well Known Binary) format.

main.js

import Map from 'ol/Map.js';
import View from 'ol/View.js';
import WKB from 'ol/format/WKB.js';
import TileLayer from 'ol/layer/Tile.js';
import VectorLayer from 'ol/layer/Vector.js';
import OSM from 'ol/source/OSM.js';
import VectorSource from 'ol/source/Vector.js';

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

const wkb =
  '0103000000010000000500000054E3A59BC4602540643BDF4F8D1739C05C8FC2F5284C4140EC51B81E852B34C0D578E926316843406F1283C0CAD141C01B2FDD2406012B40A4703D0AD79343C054E3A59BC4602540643BDF4F8D1739C0';

const format = new WKB();

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

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

const map = new Map({
  layers: [raster, vector],
  target: 'map',
  view: new View({
    center: [2952104.0199, -3277504.823],
    zoom: 4,
  }),
});

index.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <title>WKB</title>
    <link rel="stylesheet" href="node_modules/ol/ol.css">
    <style>
      .map {
        width: 100%;
        height: 400px;
      }
    </style>
  </head>
  <body>
    <div id="map" class="map"></div>

    <script type="module" src="main.js"></script>
  </body>
</html>

package.json

{
  "name": "wkb",
  "dependencies": {
    "ol": "10.5.0"
  },
  "devDependencies": {
    "vite": "^3.2.3"
  },
  "scripts": {
    "start": "vite",
    "build": "vite build"
  }
}