Leafletjs dynamically bound map to visible overlays - Javascript Leaflet

Javascript examples for Leaflet:Map

  1. HOME
  2. Javascript
  3. Leaflet
  4. Map

Description

Leafletjs dynamically bound map to visible overlays

Demo Code

ResultView the demo in separate window 

<html>
   <head> 
      <meta name="viewport" content="width=device-width, initial-scale=1"> 
      <link rel="stylesheet" type="text/css" href="https://unpkg.com/leaflet@1.1.0/dist/leaflet.css"> 
      <script type="text/javascript" src="https://unpkg.com/leaflet@1.1.0/dist/leaflet-src.js"></script> 
      <script type="text/javascript" src="https://unpkg.com/leaflet.featuregroup.subgroup@1.0.2/dist/leaflet.featuregroup.subgroup-src.js"></script> 
      <style id="compiled-css" type="text/css">

#map {/*from   w  w  w  .  jav a  2s .co  m*/
   height: 500px;
}
      </style> 
      <script type="text/javascript">
    window.onload=function(){
var map = L.map("map");
L.tileLayer("https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png").addTo(map);
map.setView([48.85, 2.35], 12);
var parentGroup = L.featureGroup().addTo(map),
      subGroup1 = L.featureGroup.subGroup(parentGroup),
    subGroup2 = L.featureGroup.subGroup(parentGroup);
for (var i = 0; i < 10; i += 1) {
   L.marker(getRandomLatLng()).addTo(subGroup1);
}
for (i = 0; i < 10; i += 1) {
   L.marker(getRandomLatLng2()).addTo(subGroup2);
}
var overlays = {
   'SubGroup 1': subGroup1,
   'SubGroup 2': subGroup2
};
L.control.layers(null, overlays, {
   collapsed: false
}).addTo(map);
map.on('overlayadd overlayremove', function () {
   var bounds = parentGroup.getBounds();
  if (bounds.isValid()) {
     map.fitBounds(bounds);
  }
});
function getRandomLatLng() {
   return [
     48.8 + 0.05 * Math.random(),
    2.25 + 0.1 * Math.random()
  ];
}
function getRandomLatLng2() {
   return [
     48.85 + 0.05 * Math.random(),
    2.35 + 0.1 * Math.random()
  ];
}
    }

      </script> 
   </head> 
   <body> 
      <div id="map"></div>  
   </body>
</html>

Related Tutorials