OpenLayers Nasıl Kullanılır ?

openlayers.ts

fetch('/data.kml')
  .then(res => res.text())
  .then(geojson => {
    const reader = new KML({ showPointNames: false });
    const features = reader.readFeatures(geojson, { featureProjection: 'EPSG:3857' });
    const vectorSource = new VectorSource({ features });
    map.addLayer(new VectorLayer({ source: vectorSource as any }))
  })
  .catch(() => {
    alert('hata Oluştu!');
  });