Projet 2

<!DOCTYPE html>
<meta charset="utf-8">
<link href='https://fonts.googleapis.com/css?family=Oleo+Script' rel='stylesheet' type='text/css'>
<style>

body {
  font: 400 100px/1.3 'Oleo Script', Helvetica, sans-serif;
  font-size: 20px;

}
  
  
.links line {
  stroke: #999;
  stroke-opacity: 0.6;
}

.nodes circle {
  stroke: #fff;
  stroke-width: 1.5px;
}
  
  .hidden {
        display: none;
    }
    div.tooltip {
        color: #007acc;
        background: rgba(200, 200, 200, 0.8);
        line-height: 1;
        padding: 6px;
        text-shadow: #f5f5f5 0 1px 0;
        border-radius: 2px;
        opacity: 0.9;
        position: absolute;
    }

</style>

var svg = d3.select("svg"),
    width = +svg.attr("width"),
    height = +svg.attr("height");
  
var tooltip = d3.select('body').append('div')
    .attr('class', 'hidden tooltip');
 
var color = d3.scaleOrdinal(d3.schemeCategory20);

var simulation = d3.forceSimulation()
    .force("link", d3.forceLink().id(function(d) { return d.artist; }))
    .force("charge", d3.forceManyBody().distanceMax(100))
    .force("center", d3.forceCenter(width / 2, height / 2));

d3.csv("recommandations.csv", function(data){
  
  
    var links = [];
    var nodes = new Set();
    for (var i=0; i< data.length; i++){
      links.push({source: data[i].Antecedant, target: data[i].Consequence, value: parseFloat(data[i].ItemSetSupport)});
      nodes.add(data[i].Antecedant);
      nodes.add(data[i].Consequence);
    }
  
  var nodesArray = Array.from(nodes).map(function(e){return {artist: e}});
 
  d3.csv("artists_tags_count.csv", function(data2){
    for (var i=0; i< nodesArray.length; i++){
      for (var j=0; j<data2.length;j++){
        if (nodesArray[i].artist == data2[j].name){
          nodesArray [i].url = data2[j].pictureurl;
          nodesArray[i].tags = top5tags(data2[j].tags);
          nodesArray[i].count = data2[j].count;
          break;
        }
      } 
    }
    
 console.log(nodesArray[1].url)
   //on va selectionner les top 5 tags
   function top5tags(tags){
     top5 =[];
     n = tags.split(";").length;
     t = tags.split(";");
     top5.push(t[0].split("[")[1]); //premier tag (sans le crochet)
     if (n<5){
       for (var i=1; i<n-1; i++){
         top5.push(t[i])
       }
       top5.push(t[n-1].split("]")[0])
     }
     else {
       for (var i=1; i<5; i++){
         top5.push(t[i])
      }
     }
     
    return top5
   }

simulation.force("link")
      .links(links);
 
  function ticked() {
    link
        .attr("x1", function(d) { return d.source.x; })
        .attr("y1", function(d) { return d.source.y; })
        .attr("x2", function(d) { return d.target.x; })
        .attr("y2", function(d) { return d.target.y; });

node
        .attr("cx", function(d) { return d.x; })
        .attr("cy", function(d) { return d.y; });
  } 
    
  });
  
  });
  
  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;
}

</script>

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