Widget:LeafletWWW
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css"/> <link rel="stylesheet" href="https://unpkg.com/leaflet-control-geocoder/dist/Control.Geocoder.css"/>
<script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"></script> <script src="https://unpkg.com/leaflet-control-geocoder/dist/Control.Geocoder.js"></script>
<style>
- map {
width:100%; height:88vh; border:3px solid black; border-radius:10px; }
.layerbox{ background:rgba(255,255,255,0.9); padding:10px; border-radius:6px; box-shadow:0 0 10px rgba(0,0,0,0.3); font-size:14px; max-height:70vh; overflow-y:auto; }
.search-input{ width:100%; margin-bottom:6px; padding:4px; border:1px solid #ccc; border-radius:4px; }
- map-frame{
position:relative; }
- map-title{
position:absolute; top:10px; left:50%; transform:translateX(-50%); z-index:1000; background:rgba(255,255,255,0.85); padding:6px 14px; font-weight:bold; font-size:18px; border-radius:6px; box-shadow:0 0 6px rgba(0,0,0,0.3); }
- map-footer{
position:absolute; bottom:10px; left:10px; z-index:1000; background:rgba(255,255,255,0.85); padding:4px 10px; border-radius:6px; font-size:13px; box-shadow:0 0 6px rgba(0,0,0,0.3); }
- map-footer a{
color:red; text-decoration:none; font-weight:bold; }
</style>
<script>
document.addEventListener("DOMContentLoaded", function(){
var map = L.map('map',{ preferCanvas:true, zoomSnap:0.5, zoomDelta:0.5 }).setView([50.95,6.95],12);
var osm = L.tileLayer(
'https://tile.openstreetmap.org/{z}/{x}/{y}.png',
{maxZoom:19, attribution:'© OpenStreetMap'}
);
var satellite = L.tileLayer( 'https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}', {attribution:'Tiles © Esri'} );
osm.addTo(map);
L.control.layers( { "OpenStreetMap":osm, "Satellit":satellite } ).addTo(map);
L.Control.geocoder({
position:'topleft',
placeholder:"Suche ..."
}).addTo(map);
var nutzungColors={
'Hof':'red',
'Mühle':'blue',
'Fabrik':'black',
'Gewerbe':'gray',
'Verwaltung':'orange',
'Bahn':'brown',
'Brücke':'navy',
'Hafen':'blue',
'Flughafen':'green',
'Versorgung':'gray',
'Tankstelle':'maroon',
'Brauerei':'yellow',
'Ziegelei':'red',
'Kloster':'orange',
'Kirche':'purple',
'Synagoge':'violet',
'Krankenhaus':'red',
'Friedhof':'green',
'Hochbunker':'black',
'Militär':'green',
'Wohnen':'brown',
'Schule':'red',
'Freizeit':'green'
};
var geojsonLayer = L.geoJSON(null,{
renderer:L.canvas(),
style:function(feature){
return{
color:nutzungColors[feature.properties.Nutzung] || "black",
weight:2,
fillOpacity:0.4
};
}
}).addTo(map);
fetch('/images/WWW.geojson')
.then(res=>res.json())
.then(data=>{
geojsonLayer.addData(data);
buildLayerbox(data);
});
function buildLayerbox(data){
var div = L.DomUtil.create('div','layerbox');
div.innerHTML=`
Layer
<input type="text" id="searchName" placeholder="Suche nach Name ..." class="search-input">
`;
L.DomEvent.disableClickPropagation(div);
var layerBox = L.control({position:'topright'}); layerBox.onAdd=function(){return div;}; layerBox.addTo(map);
var gruppenDiv=document.getElementById('gruppen');
var groups={};
data.features.forEach(f=>{ var g=f.properties.Gruppe || "Sonstiges"; var n=f.properties.Nutzung || "Unbekannt";
if(!groups[g]) groups[g]={}; if(!groups[g][n]) groups[g][n]=0;
groups[g][n]++; });
for(var g in groups){
var gDiv=document.createElement('div');
gDiv.innerHTML=`${g}
`;
for(var n in groups[g]){
var color=nutzungColors[n] || "black";
gDiv.innerHTML+=`
<label style="display:flex;align-items:center;gap:4px;">
<input type="checkbox" class="layerNutzung" data-gruppe="${g}" data-nutzung="${n}" checked>
${n} (${groups[g][n]})
</label>
`;
}
gruppenDiv.appendChild(gDiv);
}
document.querySelectorAll('.layerNutzung').forEach(cb=>{
cb.addEventListener('change',function(){
var gruppe=this.dataset.gruppe; var nutzung=this.dataset.nutzung;
geojsonLayer.eachLayer(layer=>{
if(layer.feature.properties.Gruppe===gruppe && layer.feature.properties.Nutzung===nutzung){
if(cb.checked) map.addLayer(layer); else map.removeLayer(layer);
}
});
});
});
document.getElementById('searchName').addEventListener('input',function(){
var val=this.value.toLowerCase();
geojsonLayer.eachLayer(layer=>{
if(!layer.feature.properties.Name) return;
if(layer.feature.properties.Name.toLowerCase().includes(val)){
layer.setStyle({ color:'yellow', weight:4, fillOpacity:0.6 });
}else{
geojsonLayer.resetStyle(layer);
}
});
});
}
});
</script>