Old school D3 from simpler times

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steveharoz

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transition example

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<!DOCTYPE html>
  <head>
    <meta charset="utf-8">
    <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
    <style>
      body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
      svg { width: 100%; height: 100%; }
    </style>
  </head>

<body>
    <script>
      var margin = {top: 20, right: 10, bottom: 20, left: 10};
      var width = 960 - margin.left - margin.right;
      var height = 500 - margin.top - margin.bottom;
      var svg = d3.select("body").append("svg")
        .attr("width", width + margin.left + margin.right)
        .attr("height", height + margin.top + margin.bottom)
      .append("g")
        .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

var data = d3.range(1,20).map(function(x){return Math.random()*11;});
      
      var circles = svg.selectAll('circle').data(data).enter().append('circle')
      	.attr('transform', function(d){return 'translate('+ d*80 + ',100)';})
      	.attr('r', function(d){return 10 + d*3;})
      	.attr('fill', function(d){return d3.hcl(d/11*360,50,50);})
      function animate() {
        data = d3.range(1,20).map(function(x){return Math.random()*11;});
        circles = svg.selectAll('circle').data(data).enter().append('circle')
          .attr('transform', function(d){return 'translate('+ d*80 + ',100)';})
          .attr('r', function(d){return 10 + d*3;})
          .attr('fill', function(d){return d3.hcl(d/11*360,50,50);})
        circles
          .transition()
          .delay(function(d){return 100 + d*50;})
          .attr('transform', function(d){return 'translate('+ d*80 + ',200)';});
        circles
          .transition()
          .delay(function(d,i){return 1000 + d*50;})
          .attr('transform', function(d){return 'translate('+ d*80 + ',100)';});
      }
      setInterval(animate, 2000);
      console.log("you are now rocking with d3", d3);
    </script>
  </body>

https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js