leaflet-radon

by Clemens Schmid

HTML

<script src="  https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.0.0-rc.3/leaflet.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.0.0-rc.3/leaflet.css">
<script src="https://raw.githubusercontent.com/Leaflet/Leaflet.heat/gh-pages/dist/leaflet-heat.js"></script>
<div id="map"></div>

CSS

#map {
  height: 500px;
  width: 80%;
}

CoffeeScript

# prepare basemap
osmUrl = 'http://{s}.tile.osm.org/{z}/{x}/{y}.png'
osmAttrib = '&copy; <a href="http://openstreetmap.org/copyright">OpenStreetMap</a> contributors'
osm = L.tileLayer(osmUrl,
  maxZoom: 18
  attribution: osmAttrib)
  
# initialize the map with basemap
map = L.map('map').setView([
  17
  75
], 5).addLayer(osm)

# coordinate vectors
lat = [14, 15, 16, 18, 19, 20]
lng = [72, 73, 74, 76, 77, 78]

# create pane
map.createPane 'circles'
map.getPane('circles').style.zIndex = 450

# add circles to map
for lati in lat
  for lngi in lng
     L.circle([
       lati
       lngi
      ], 50000,
       color: 'black'
       fillColor: '#black'
       fillOpacity: 0.5
       pane: 'circles').addTo(map)

# add heatmap to map
heatItem = new (L.FeatureGroup)
heat = L.heatLayer([
  [
    15
    73
    3000
  ]
  [
    19
    77
    10000
  ]
], radius: 25).addTo(heatItem)
heatItem.addTo(map)