ruby4/index.html.erb at master · code61/ruby4 · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="d3-cloud/lib/d3/d3.js"></script>
<script src="d3-cloud/d3.layout.cloud.js"></script>
</head>
<body>
<script>
 // var fill = d3.scale.category20b();
  var words_with_frequencies = <%= words_with_frequencies.to_json %>;

  var fill = d3.scale.linear().domain([1,60]).range(['#aaa', '#222']);
  d3.layout.cloud().size([1000, 600])
      .words(words_with_frequencies.map(function(d) {
        return {text: d[0], size: 30* d[1]};
      }))
      .padding(5)
      .rotate(function() { return 0; })
      .font("Impact")
      .fontSize(function(d) { return Math.sqrt(d.size)*3; })
      .on("end", draw)
      .start();

  function draw(words) {
    d3.select("body").append("svg")
        .attr("width", 1000)
        .attr("height", 600)
      .append("g")
        .attr("transform", "translate(500,300)")
      .selectAll("text")
        .data(words)
      .enter().append("text")
        .style("font-size", function(d) { return d.size + "px"; })
        .style("font-family", "Impact")
        .style("fill", function(d, i) { return fill(d.size); })
        .attr("text-anchor", "middle")
        .attr("transform", function(d) {
          return "translate(" + [d.x, d.y] + ")rotate(" + d.rotate + ")";
        })
        .text(function(d) { return d.text; });
  }

</script>
</body>
</html>