toolkit/javascript/d3/examples/crimea/crimea-stacked-bar.html
changeset 47 c0b4a8b5a012
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/examples/crimea/crimea-stacked-bar.html	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,98 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Crimean War</title>
+    <script type="text/javascript" src="../../d3.js"></script>
+    <script type="text/javascript" src="../../d3.layout.js"></script>
+    <script type="text/javascript" src="../../d3.time.js"></script>
+    <script type="text/javascript" src="../../d3.csv.js"></script>
+    <style type="text/css">
+
+svg {
+  width: 960px;
+  height: 500px;
+  font: 10px sans-serif;
+  shape-rendering: crispEdges;
+}
+
+    </style>
+  </head>
+  <body>
+    <script type="text/javascript">
+
+var p = [20, 50, 30, 20],
+    w = 960 - p[1] - p[3],
+    h = 500 - p[0] - p[2],
+    x = d3.scale.ordinal().rangeRoundBands([0, w]),
+    y = d3.scale.linear().range([0, h]),
+    z = d3.scale.ordinal().range(["lightpink", "darkgray", "lightblue"]),
+    parse = d3.time.format("%m/%Y").parse,
+    format = d3.time.format("%b");
+
+var svg = d3.select("body").append("svg:svg")
+    .attr("width", w)
+    .attr("height", h)
+  .append("svg:g")
+    .attr("transform", "translate(" + p[3] + "," + (h + p[0]) + ")");
+
+d3.csv("crimea.csv", function(crimea) {
+
+  // Transpose the data into layers by cause.
+  var causes = d3.layout.stack()(["wounds", "other", "disease"].map(function(cause) {
+    return crimea.map(function(d) {
+      return {x: parse(d.date), y: +d[cause]};
+    });
+  }));
+
+  // Compute the x-domain (by date) and y-domain (by top).
+  x.domain(causes[0].map(function(d) { return d.x; }));
+  y.domain([0, d3.max(causes[causes.length - 1], function(d) { return d.y0 + d.y; })]);
+
+  // Add a group for each cause.
+  var cause = svg.selectAll("g.cause")
+      .data(causes)
+    .enter().append("svg:g")
+      .attr("class", "cause")
+      .style("fill", function(d, i) { return z(i); })
+      .style("stroke", function(d, i) { return d3.rgb(z(i)).darker(); });
+
+  // Add a rect for each date.
+  var rect = cause.selectAll("rect")
+      .data(Object)
+    .enter().append("svg:rect")
+      .attr("x", function(d) { return x(d.x); })
+      .attr("y", function(d) { return -y(d.y0) - y(d.y); })
+      .attr("height", function(d) { return y(d.y); })
+      .attr("width", x.rangeBand());
+
+  // Add a label per date.
+  var label = svg.selectAll("text")
+      .data(x.domain())
+    .enter().append("svg:text")
+      .attr("x", function(d) { return x(d) + x.rangeBand() / 2; })
+      .attr("y", 6)
+      .attr("text-anchor", "middle")
+      .attr("dy", ".71em")
+      .text(format);
+
+  // Add y-axis rules.
+  var rule = svg.selectAll("g.rule")
+      .data(y.ticks(5))
+    .enter().append("svg:g")
+      .attr("class", "rule")
+      .attr("transform", function(d) { return "translate(0," + -y(d) + ")"; });
+
+  rule.append("svg:line")
+      .attr("x2", w)
+      .style("stroke", function(d) { return d ? "#fff" : "#000"; })
+      .style("stroke-opacity", function(d) { return d ? .7 : null; });
+
+  rule.append("svg:text")
+      .attr("x", w + 6)
+      .attr("dy", ".35em")
+      .text(d3.format(",d"));
+});
+
+    </script>
+  </body>
+</html>