Widget:Leaflet

<link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.3/dist/leaflet.css"/> <link rel="stylesheet" href="https://unpkg.com/leaflet.markercluster/dist/MarkerCluster.css"/> <link rel="stylesheet" href="https://unpkg.com/leaflet.markercluster/dist/MarkerCluster.Default.css"/>

<script src="https://unpkg.com/leaflet@1.9.3/dist/leaflet.js"></script> <script src="https://unpkg.com/leaflet.markercluster/dist/leaflet.markercluster.js"></script>

<script>

// Layer-Container var layerGrund = L.markerClusterGroup(); var layerGym = L.markerClusterGroup(); var layerGes = L.markerClusterGroup(); var layerBeruf = L.markerClusterGroup(); var layerFoerder = L.markerClusterGroup();

// Karte var map = L.map('map').setView([50.94, 6.96], 11);

// OSM Layer L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {

   maxZoom: 18

}).addTo(map);

// SMW-Daten werden ersetzt:

// Marker erzeugen schoolData.forEach(function(school){

   if(!school.Koordinaten) return;

   var coords = school.Koordinaten.split(',');
   var lat = parseFloat(coords[0]);
   var lon = parseFloat(coords[1]);

   var marker = L.marker([lat, lon])
               .bindPopup('' + school.link + '
' + school.Schultyp);

   switch(school.Schultyp){
       case "Grundschule":
           layerGrund.addLayer(marker);
           break;
       case "Gymnasium":
           layerGym.addLayer(marker);
           break;
       case "Gesamtschule":
           layerGes.addLayer(marker);
           break;
       case "Berufskolleg":
           layerBeruf.addLayer(marker);
           break;
       case "Förderschule":
           layerFoerder.addLayer(marker);
           break;
       default:
           layerGrund.addLayer(marker);
   }

});

// Standard-Layer zur Karte hinzufügen layerGrund.addTo(map); layerGym.addTo(map);

// Layer-Kontrolle (Legende) var overlays = {

   "Grundschulen": layerGrund,
   "Gymnasien": layerGym,
   "Gesamtschulen": layerGes,
   "Berufskollegs": layerBeruf,
   "Förderschulen": layerFoerder

};

L.control.layers(null, overlays, {collapsed:false}).addTo(map);

</script>