Sample reactive Leaflet code for Zeppelin

map.js

%angular
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/0.7.5/leaflet.css" />
<div id="map" style="height: 500px; width: 100%"></div>

<script type="text/javascript">
function initMap() {
    var map = L.map('map').setView([30.00, -30.00], 3);
    L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png').addTo(map);
    var geoMarkers = L.layerGroup().addTo(map);
    
    var el = angular.element($('#map').parent('.ng-scope'));
    angular.element(el).ready(function() {
        window.locationWatcher = el.scope().compiledScope.$watch('locations', function(newValue, oldValue) {
            geoMarkers.clearLayers();
            angular.forEach(newValue, function(event) {
                if (event)
                  var marker = L.marker([event.values[1], event.values[2]]).bindPopup(event.values[0]).addTo(geoMarkers);
            });
        })
    });
}

if (window.locationWatcher) { window.locationWatcher(); }

// ensure we only load the script once, seems to cause issues otherwise
if (window.L) {
    initMap();
} else {
    console.log('Loading Leaflet library');
    var sc = document.createElement('script');
    sc.type = 'text/javascript';
    sc.src = 'https://cdnjs.cloudflare.com/ajax/libs/leaflet/0.7.5/leaflet.js';
    sc.onload = initMap;
    sc.onerror = function(err) { alert(err); }
    document.getElementsByTagName('head')[0].appendChild(sc);
}
</script>

points.scala

//Paste in empty note
val map_pings = sqlContext.sql("select concat('AP: ', ssid) as desc, lat, lng from hotspots")
z.angularBind("locations", map_pings.collect())

sshot.png

make sure your Zeppelin build includes this change