toolkit/javascript/d3/examples/bullet/bullet.js
changeset 47 c0b4a8b5a012
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/examples/bullet/bullet.js	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,53 @@
+var w = 960,
+    h = 50,
+    m = [5, 40, 20, 120]; // top right bottom left
+
+var chart = d3.chart.bullet()
+    .width(w - m[1] - m[3])
+    .height(h - m[0] - m[2]);
+
+d3.json("bullets.json", function(data) {
+
+  var vis = d3.select("#chart").selectAll("svg")
+      .data(data)
+    .enter().append("svg:svg")
+      .attr("class", "bullet")
+      .attr("width", w)
+      .attr("height", h)
+    .append("svg:g")
+      .attr("transform", "translate(" + m[3] + "," + m[0] + ")")
+      .call(chart);
+
+  var title = vis.append("svg:g")
+      .attr("text-anchor", "end")
+      .attr("transform", "translate(-6," + (h - m[0] - m[2]) / 2 + ")");
+
+  title.append("svg:text")
+      .attr("class", "title")
+      .text(function(d) { return d.title; });
+
+  title.append("svg:text")
+      .attr("class", "subtitle")
+      .attr("dy", "1em")
+      .text(function(d) { return d.subtitle; });
+
+  chart.duration(1000);
+  window.transition = function() {
+    vis.map(randomize).call(chart);
+  };
+});
+
+function randomize(d) {
+  if (!d.randomizer) d.randomizer = randomizer(d);
+  d.ranges = d.ranges.map(d.randomizer);
+  d.markers = d.markers.map(d.randomizer);
+  d.measures = d.measures.map(d.randomizer);
+  return d;
+}
+
+function randomizer(d) {
+  var k = d3.max(d.ranges) * .2;
+  return function(d) {
+    return Math.max(0, d + k * (Math.random() - .5));
+  };
+}