├── .gitignore
├── clustering.js
├── leaflet.js
├── package.json
├── readme.md
└── sample-data.geojson


/.gitignore:
--------------------------------------------------------------------------------
1 | node_modules/
2 | .DS_Store
3 | 


--------------------------------------------------------------------------------
/clustering.js:
--------------------------------------------------------------------------------
 1 | var fs = require('fs'),
 2 |     L = require('./leaflet');
 3 | 
 4 | function cluster(zoom, callback) {
 5 |     callback = callback || function () {};
 6 |     
 7 |     fs.readFile('sample-data.geojson', function (err, content) {
 8 |         var data = JSON.parse(content);
 9 |         
10 |         var map = L.map('map', {
11 |                 center: [38.543869175876154, -92.5433349609375],
12 |                 zoom: zoom,
13 |                 maxZoom: 12
14 |             }),
15 |             
16 |             dataLayer = L.geoJson(data),
17 |             clusterLayer = new L.MarkerClusterGroup();
18 |         
19 |         map.addLayer(clusterLayer);
20 |         clusterLayer.addLayer(dataLayer);
21 |         
22 |         var features = clusterLayer._featureGroup.getLayers().map(function (cluster) {
23 |             var f = cluster.toGeoJSON();
24 |             f.properties.featureCount = cluster.__parent.getChildCount();
25 |             return f;
26 |         });
27 |         
28 |         callback({
29 |             type: "FeatureCollection",
30 |             features: features
31 |         });
32 |     });
33 | }
34 | 
35 | if (require.main === module) {
36 |     cluster(9, function (geojson) {
37 |         process.stdout.write(JSON.stringify(geojson));  
38 |     });
39 | } else {
40 |     module.exports = cluster;
41 | }


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "server-side-leaflet",
 3 |   "version": "0.0.1",
 4 |   "description": "Leaflet coerced to run server-side with jsdom",
 5 |   "main": "leaflet.js",
 6 |   "scripts": {
 7 |     "test": "echo \"Error: no test specified\" && exit 1"
 8 |   },
 9 |   "repository": {
10 |     "type": "git",
11 |     "url": "git://github.com/rclark/server-side-leaflet.git"
12 |   },
13 |   "keywords": [
14 |     "leaflet",
15 |     "maps",
16 |     "geospatial"
17 |   ],
18 |   "author": "Vladamir Agafonkin, mostly",
19 |   "license": "MIT",
20 |   "bugs": {
21 |     "url": "https://github.com/rclark/server-side-leaflet/issues"
22 |   },
23 |   "dependencies": {
24 |     "jsdom": "~0.8.4"
25 |   }
26 | }
27 | 


--------------------------------------------------------------------------------
/readme.md:
--------------------------------------------------------------------------------
 1 | # server-side-leaflet
 2 | 
 3 | Use [Leaflet](http://leafletjs.com/) on the server with help from [jsdom](https://github.com/tmpvar/jsdom).
 4 | 
 5 | All this does is 
 6 | 
 7 | - spoof the `window` and DOM with jsdom, 
 8 | - fix the size of the map to 1024x1024, 
 9 | - set `L.Icon.Default.imagePath` to some nonsense,
10 | - and then let Leaflet do the rest.
11 | 
12 | I concatenated [Leaflet.markercluster]() here, in order to use it to do clustering server-side. See [the example](clustering.js).


--------------------------------------------------------------------------------