D3 Examples - collision mobile

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<!DOCTYPE html>
<meta charset="utf-8">
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script>
​
var width = 500,
    height = 500;
  
var textos = ["El Corral", "Carulla","Exito","Gratto","Zara","Cascabel","Alkosto","Falabella","Sodexo"];
​
var counts = //d3.range(10).map(function() { return {radius: Math.random() * 50 + 30}});
[,23,84,85,16,47,34,124,103,41,90];
​
  
  
var nodes = //d3.range(10).map(function() { return {radius: Math.random() * 50 + 30}; }),
    d3.range(10).map(  function(i) { return {radius: counts[i]}; }),
   // labels = ( function(i) { return {radius: textos[i]}; }),//,
    root = nodes[0],
    color = d3.scale.category10();
​
root.radius = 0;
root.fixed = true;
​
var force = d3.layout.force()
    .gravity(0.05)
    .charge(function(d, i) { return i ? 0 : -2000; })
    .nodes(nodes)
    .size([width, height]);
​
force.start();
  
​
​
var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height);
​
​
  
  //le toca hacer un grupo enter circle y text, no una jerarquia  
var bub = svg.selectAll("circle")
    .data(nodes.slice(1)) 
  .enter().append("circle")
    .attr("r", function(d) { return d.radius; })
    .style("fill", function(d, i) { return color(i ); });
  
  
​
svg.selectAll("text")
   .data(nodes.slice(1)) //nodes
    .enter().append("text")  
    //.attr("x", function(d) { return 5*d.radius; })
    //.attr("y", function(d) { return 9*d.radius;})
    .attr("font-size", function(d) { return 0.2*d.radius+"px";}) //"25px" ) 
      .attr("dx", function(d){return "-"+0.3*d.radius+"px"})
        .attr("dy", function(d){return 0.05*d.radius+"px"})
    .attr("fill", "white")
        //.text("hola");
    .text(function(d,i) { return textos[i];}); //"hola!!");  
  
force.on("tick", function(e) {
  var q = d3.geom.quadtree(nodes),
      i = 0,
      n = nodes.length;
​
  while (++i < n) q.visit(collide(nodes[i]));
​
  svg.selectAll("circle")
      .attr("cx", function(d) { return d.x; })
      .attr("cy", function(d) { return d.y; });
  
  svg.selectAll("text") 
    .attr("x", function(d) { return d.x; })
    .attr("y", function(d) { return d.y;});
    
  
  ;
});
​
  svg.on("mouseover", function() 
//svg.on("touchmove", function() 
         {
  var p1 = d3.mouse(this);
  root.px = p1[0];
  root.py = p1[1];
  force.resume();
});
//})
​
function collide(node) {
  var r = node.radius + 16,
      nx1 = node.x - r,
      nx2 = node.x + r,
      ny1 = node.y - r,
      ny2 = node.y + r;
  return function(quad, x1, y1, x2, y2) {
    if (quad.point && (quad.point !== node)) {
      var x = node.x - quad.point.x,
          y = node.y - quad.point.y,
          l = Math.sqrt(x * x + y * y),
          r = node.radius + quad.point.radius;
      if (l < r) {
        l = (l - r) / l * .5;
        node.x -= x *= l;
        node.y -= y *= l;
        quad.point.x += x;
        quad.point.y += y;
      }
    }
    return x1 > nx2 || x2 < nx1 || y1 > ny2 || y2 < ny1;
  };
}
  
​
​
</script>
    