Initial commit

1 files changed, 47 insertions, 0 deletions

diff --git a/build-data.js b/build-data.js
new file mode 100755
index 0000000..2c24232
--- /dev/null
+++ b/build-data.js
@@ -0,0 +1,47 @@
+#!/usr/bin/env node
+
+var osmtogeojson = require('osmtogeojson');
+var fs = require('fs');
+var DOMParser = require("xmldom").DOMParser;
+var async = require('async');
+
+var levels = [1, 3, 4, 5];
+
+async.map(levels, function(level, callback) {
+
+    fs.readFile('level-' + level + '.osm', 'utf8', function(err, data) {
+      if (err) {
+          callback(err);
+          return;
+      }
+
+      xml = (new DOMParser()).parseFromString(data, 'text/xml');
+
+      var geojson = osmtogeojson(xml, {
+          flatProperties: true,
+          polygonFeatures: function(feature) { return true; }
+      });
+
+      var featuresWithLevels = geojson.features.forEach(function(feature) {
+          feature.properties.level = level;
+      });
+
+      callback(null, geojson.features);
+    });
+}, function(err, features) {
+    var featureCollection = {
+        type: "FeatureCollection",
+        features: []
+    };
+
+    features.forEach(function(featureArray) {
+        featureArray.forEach(function(feature) {
+            delete feature.id;
+            delete feature.properties.id;
+
+            featureCollection.features.push(feature);
+        });
+    });
+
+    console.log(JSON.stringify(featureCollection, null, 4));
+});