D3 Examples - Every ColorBrewer Scale on Acid

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<!DOCTYPE html>
<meta charset="utf-8">
<style>
​
body {
  background: #ccc;
  width: 960px;
  height: 500px;
}
​
.palette {
  cursor: pointer;
  display: inline-block;
  vertical-align: bottom;
  margin: 4px 0 4px 6px;
  padding: 4px;
  background: #fff;
  border: solid 1px #aaa;
}
​
.swatch {
  display: block;
  vertical-align: middle;
  width: 37px;
  height: 22px;
}
 
</style>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script src="colorbrewer.min.js"></script>
<script>
​
d3.select("body")
  .selectAll(".palette")
    .data(d3.entries(colorbrewer))
  .enter().append("span")
    .attr("class", "palette")
    .attr("title", function(d) { return d.key; })
    .on("click", function(d) {
  //console.log(d3.values(d.value).map(JSON.stringify).join("\n"));
    console.log(d3.keys(d.value).map(Number).sort(d3.descending)[0])
})
  .selectAll(".swatch")
    .data(function(d) { 
  var array = d.value[d3.keys(d.value).map(Number).sort(d3.descending)[0]];
  array.forEach(function(a,i) {
    array[i] = {v: a, array: array }
  })
  array.dir = Math.floor(Math.random() * 2 - 1);
  array.offset = Math.floor(Math.random() * array.length -1);
  console.log("ARRAY", array)
  return array; })
  .enter().append("span")
    .attr("class", "swatch")
    .style("background-color", function(d,i) { return d.array[(i)%d.array.length].v; });
​
  d3.timer(function(elapsed) {
    var el = elapsed / 150;
    d3.selectAll("span.swatch")
    .style("background-color", function(d,i) { 
      //var dir = d.array.dir;
            //if(!dir) dir = 1;
      dir = 1;
      var j = Math.floor((i+el*dir+d.array.offset)%d.array.length)
      //if(j < 0) j = d.array.length - 1;
      
      
      //console.log(d, i, j);
      return d.array[j].v; });
    return false;
  })
</script>
​
    