Bar graph added.

node_modules/d3-geo-projection/bin/read.js

@@ -0,0 +1,39 @@
+var fs = require("fs"),
+    readline = require("readline");
+
+module.exports = function(file, newlineDelimited, callback) {
+  var index = -1,
+      input = file === "-" ? process.stdin : fs.createReadStream(file);
+
+  function readObject() {
+    return new Promise(function(resolve, reject) {
+      var data = [];
+      input
+          .on("data", function(d) { data.push(d); })
+          .on("end", function() { resolve(JSON.parse(Buffer.concat(data))); })
+          .on("error", reject);
+    });
+  }
+
+  function readNewlineDelimitedObjects() {
+    return new Promise(function(resolve, reject) {
+      var queue = Promise.resolve();
+      readline.createInterface({
+        input: input,
+        output: null
+      }).on("line", function(line) {
+        queue = queue.then(function() { return callbackObject(JSON.parse(line)); });
+      }).on("close", function() {
+        queue.then(function() { resolve(); }, reject);
+      }).on("error", reject);
+    });
+  }
+
+  function callbackObject(object) {
+    return callback(object, ++index);
+  }
+
+  return newlineDelimited
+      ? readNewlineDelimitedObjects()
+      : readObject().then(callbackObject);
+};