D3 Examples - my sample block

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<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
  </style>
</head>
​
<body>
  <script>
    // Feel free to change or delete any of the code you see in this editor!
    var svg = d3.select("body").append("svg")
      .attr("width", 960)
      .attr("height", 500)
​
    var max = 10;
    
    for (var i = 0 ; i < max ; i++ ) {
      svg.append("circle")
      .attr("cy", (i+1) * 40 )
      .attr("cx", (i+1) * 40)
      .attr("r", Math.pow(i+1, 1.3))
      .attr("fill","steelblue")
      .style("stroke-width", 3)
      .style("stroke", "peru")
          .append("title")
                .text(function(d) { return "circle #: " +i; })
      ;
    }
​
  </script>
</body>
​
    