Metis Class Les Miserables Force Layout

forked from sxywu's block: Metis Class 7, #1

<!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>
    var width = 500;
    var height = 500;
    var radius = 5;
    var colors = d3.scaleOrdinal(d3.schemeCategory10);
    var svg = d3.select("body").append("svg")
      .attr("width", width)
      .attr("height", height);
    
		d3.json('miserables.json', function(err, data) {
      // position each node with their group
      console.log('data', data);
      var lines = svg.selectAll('line')
      							 .data(data.links)
      							 .enter().append('line')
      							 .attr('stroke', '#999')
      var circles = svg.selectAll('circle')
      								.data(data.nodes, function(d) {return d.id})
      								.enter().append('circle')
      								.attr('r', radius)
      								.attr('fill', function(d){return colors(d.group)})
      
      var simulation = d3.forceSimulation(data.nodes)
      										.force('center', d3.forceCenter(width/2, height/2))
//             							.force('repulse', d3.forceManyBody().strength(-100))
      										.force('repulse', d3.forceManyBody())
      										.force('link', d3.forceLink(data.links).id(function(d) {return d.id}))
      									  .on('tick', function() {
        										console.log(data.nodes[0])
                            circles
                              .attr('cx', function(d){return d.x})
                              .attr('cy', function(d){return d.y})
                            lines
                              .attr('x1', function(d){return d.source.x})
                            	.attr('x2', function(d) {return d.target.x})
                            	.attr('y1', function(d) {return d.source.y})
                            	.attr('y2', function(d) { return d.target.y})     
      									})

});
  </script>
</body>

https://d3js.org/d3.v4.min.js