Leaflet GeoJson ¶

Table of Contents

Leaflet GeoJson

Access ¶

A basic leafletjs application employing pg_featurserv is available at http://yourdomain.com/LeafletGeoJson.html

Like our Choropleth map, this map leverages GeoJson from pg_featurserv and Query Features, but does not employ the Choropleth plugin

pg_featurserv URL ¶

If you have issues with the pg_featurserv url, it can be edited at line 41 below

$.getJSON("http://domain.com:9000/collections/public.countries/items.json?limit=100&continent=Europe&properties=name,gdp_md", function(data) {

Content ¶

The content of the html page is displayed below.

<!doctype html>
<html>
<head>
<style type="text/css">
body {
padding: 0;
margin: 0;
}

html, body, #map {
height: 100%;
}

</style>

<link rel="stylesheet" href="https://unpkg.com/leaflet@1.1.0/dist/leaflet.css"
integrity="sha512-wcw6ts8Anuw10Mzh9Ytw4pylW8+NAD4ch3lqm9lzAsTxg0GFeJgoAtxuCLREZSC5lUXdVyo/7yfsqFjQ4S+aKw=="
crossorigin=""/>

<script src="https://unpkg.com/leaflet@1.1.0/dist/leaflet.js"
integrity="sha512-mNqn2Wg7tSToJhvHcqfzLMU6J4mkOImSPTxVZAdo+lcPlk+GhZmYgACEe0x35K7YzW1zJ7XyJV/TT1MrdXvMcA=="
crossorigin=""></script>
</head>

<script src="http://code.jquery.com/jquery-2.1.0.min.js"></script>
</head>
<body>
<div id="map"></div>
<script>


var osmUrl='http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png';
var osmAttrib='Data &copy <a href="http://openstreetmap.org">OpenStreetMap</a> contributors';
var osm = new L.TileLayer(osmUrl, {minZoom: 2, maxZoom: 8, attribution: osmAttrib});

$.getJSON("$.getJSON("http://domain.com:9000/collections/public.countries/items.json?limit=100&continent=Europe&properties=name,gdp_md", function(data) {", function(data) {

function onEachFeature(feature, layer) {
  layer.bindPopup("Name: " + feature.properties.name + "<br>" + "Abbreviation: " + feature.properties.gdp_md);
  }

var geojson = L.geoJson(data, {
onEachFeature: onEachFeature
});

var map = L.map('map').fitBounds(geojson.getBounds());

osm.addTo(map);
geojson.addTo(map);
});
</script>

</body>
</html>