Segundo Circulos

Example illustrating the use of both d3-force-attract and d3-force-cluster.

forked from ericsoco's block: d3-force-cluster + d3-force-attract I

forked from f94f's block: Segundo Circulos

forked from anonymous's block: Segundo Circulos

<!DOCTYPE html>
<html>
  <head>
    <title>d3-force-cluster and d3-force-attract</title>
  </head>
  <style>
    /*tooltip*/
	.show {
		display: block;
	}
	.hidden {
		display: none;
	}
	.tooltip {
		background-color: #333;
		padding: 4px 8px;
		position: absolute;
		color: #fff;
		opacity: 0.8;
		z-index: 100;
	}
  </style>
  <body>
    <script src="https://d3js.org/d3.v4.min.js"></script>
    <script src="https://unpkg.com/d3-force-attract@latest"></script>
    <script src="https://unpkg.com/d3-force-cluster@latest"></script>
    <script>

var datos = [
  {text: "Emp",    frequency:  31},
  {text: "Pro",    frequency:  20},
  {text: "Can",     frequency: 58},
  {text: "No",   frequency: 25},
  {text: "Cli",    frequency:  31},
  {text: "Epa",    frequency:  20},
  {text: "Prd",     frequency: 58},
  {text: "Cie",   frequency: 25},
  {text: "Ent",    frequency:  31},
  {text: "Noh",    frequency:  20},
  {text: "Cen",     frequency: 58},
  {text: "Otros",   frequency: 25}
];
      
var width = 960,
    height = 500,
    padding = 1.5, // separation between same-color nodes
    clusterPadding = 2, // separation between different-color nodes
    maxRadius = 50;

var n = datos.length, // total number of nodes
    m = datos.length; // number of distinct clusters

//var color = d3.scaleSequential(d3.interpolateRainbow)
//    .domain(d3.range(m));

var color = d3.scaleLinear().domain([1,length])
      .interpolate(d3.interpolateHcl)
      .range([d3.rgb("#EBEBFF"), d3.rgb('#0000FF')]);

// The largest node for each cluster.
var clusters = new Array(m);

var nodes = d3.range(n).map(function () {
  var i = Math.floor(Math.random() * m),
      r = Math.sqrt((i + 1) / m * -Math.log(Math.random())) * maxRadius,
      r1 = datos["frequency"] * maxRadius,
      d = {
        cluster: i,
        radius: r,
        x: Math.cos(i / m * 2 * Math.PI) * 200 + width / 2 + Math.random(),
        y: Math.sin(i / m * 2 * Math.PI) * 200 + height / 2 + Math.random()
      };
  if (!clusters[i] || (r > clusters[i].radius)) clusters[i] = d;
  return d;
});

var simulation = d3.forceSimulation()
  // keep entire simulation balanced around screen center
  .force('center', d3.forceCenter(width/2, height/2))
  
  // pull toward center
  .force('attract', d3.forceAttract()
    .target([width/2, height/2])
    .strength(0.01))

// cluster by section
  .force('cluster', d3.forceCluster()
    .centers(function (d) { return clusters[d.cluster]; })
    .strength(0.5)
    .centerInertia(0.1))

// apply collision with padding
  .force('collide', d3.forceCollide(function (d) { return d.radius + padding; })
    .strength(0))

.on('tick', layoutTick)
  .nodes(nodes);
  
var svg = d3.select('body').append('svg')
    .attr('width', width)
    .attr('height', height);

var node = svg.selectAll('circle')
  .data(nodes)
  .enter().append('circle')
    .style('fill', function (d) { return color(d.cluster/10); })
    .call(d3.drag()
      .on('start', dragstarted)
      .on('drag', dragged)
      .on('end', dragended)
    );

function dragstarted (d) {
  if (!d3.event.active) simulation.alphaTarget(0.3).restart();
  d.fx = d.x;
  d.fy = d.y;
}

function dragged (d) {
  d.fx = d3.event.x;
  d.fy = d3.event.y;
}

function dragended (d) {
  if (!d3.event.active) simulation.alphaTarget(0);
  d.fx = null;
  d.fy = null;
}

// ramp up collision strength to provide smooth transition
var transitionTime = 3000;
var t = d3.timer(function (elapsed) {
  var dt = elapsed / transitionTime;
  simulation.force('collide').strength(Math.pow(dt, 2) * 0.7);
  if (dt >= 1.0) t.stop();
});
  
function layoutTick (e) {
  node
    .attr('cx', function (d) { return d.x; })
    .attr('cy', function (d) { return d.y; })
    .attr('r', function (d) { return d.radius; });
}

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

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

https://unpkg.com/d3-force-attract@latest

https://unpkg.com/d3-force-cluster@latest