D3 Examples - ranking chart (soccer Ligue 1)

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<!DOCTYPE html>
<meta charset="utf-8">
<style>
​
body {
  font: 15px sans-serif;
  font-weight: 1000;
}
​
.axis path,
.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}
​
.x.axis path {
  display: none;
}
​
.line {
  fill: none;
  stroke: steelblue;
  stroke-width: 1.5px;
}
​
</style>
<body>
<script src="https://d3js.org/d3.v3.min.js"></script>
<script>
​
// Source: https://bl.ocks.org/mbostock/3884955
​
​
// Drag and drop manually on this chart
​
var margin = {top: 20, right: 80, bottom: 30, left: 50},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;
​
// var parseDate = d3.time.format("%Y%m%d").parse;
var parseDate = d3.time.format("%d").parse;
​
var ease_type = 'linear';
​
var x = d3.scale.linear()
    .range([0, width]);
​
var y = d3.scale.linear()
    .range([0, height]);
​
var color = d3.scale.category10();
​
var var_y = 'rank';
var var_x = 'date';
​
var line = d3.svg.line()
    .interpolate("linear")
    .x(function(d) { return x(d[var_x]); })
    .y(function(d) { return y(d[var_y]); });
​
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 + ")");
​
function flatten_values(data, attr) {
​
  return Array.prototype.concat.apply([], data.map(function(d) {
              return d3.values(d.values);
            })).map(function(d) {
              return d[attr];
            });
​
}
​
d3.csv("soccer_ligue1.csv", function(error, data) {
  if (error) throw error;
​
  teams = d3.set(data.map(function(d) { return d.team })).values();
​
  color.domain(teams)
​
  cities = teams.map(function(team) {
    return {
      name: team,
      values: data.filter(function(d) {
        d.date = +d.day;
        d.rank = +d.rank;
        d.pts = +d.pts;
        return d.team == team;
      })
    };
  });
​
  x.domain(d3.extent(flatten_values(cities, var_x)));
  y.domain(d3.extent(flatten_values(cities, var_y)));
​
  var xAxis = d3.svg.axis()
      .scale(x)
      .ticks(x.domain()[1])
      .orient("bottom");
​
  var yAxis = d3.svg.axis()
      .scale(y)
      .orient("left");
​
  svg.append("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis);
​
  svg.append("g")
      .attr("class", "y axis")
      .style("display", "none")
      .call(yAxis)
    .append("text")
      .attr("transform", "rotate(-90)")
      .attr("y", 6)
      .attr("dy", ".71em")
      .style("text-anchor", "end")
      .text("Rank");
​
  city = svg.selectAll(".city")
      .data(cities)
    .enter()
      .append("g")
      .attr("class", "city");
​
  path = city.append("path")
      .attr("class", "line")
      .style("stroke-width", "10px")
      .style("stroke-opacity", function(d) {
​
        if(d.name !== "Paris SG") {
          return .5;
        } else {
          return 1;
        }
​
      })
      .attr("d", function(d) { return line(d.values); })
      .style("stroke", function(d) { return color(d.name); });
​
  city.append("text")
  //    .datum(function(d) { return {name: d.name, value: d.values[d.values.length - 1]}; })
      .attr("transform", function(d) {
        return "translate(" + x(d.values[d.values.length - 1][var_x]) + "," + y(d.values[d.values.length - 1][var_y]) + ")";
      })
      .attr("x", 3)
      .attr("dy", ".35em")
      .attr("class", "names")
      .style("fill-opacity", function(d) {
​
        if(d.name !== "Paris SG") {
          return .3;
        } else {
          return 1;
        }
​
      })
      .text(function(d) { return d.name; });
​
  d3.select("body").selectAll(".clearSelection").data(["absolute"]).enter().append("button")
         .attr("type", "button")
         .attr("class", "clearSelection")
         .on("click", function() {
​
            var_y = 'pts';
            update();
​
          })
         .html("absolute");
​
  d3.select("body").selectAll(".relative").data(["relative"]).enter().append("button")
         .attr("type", "button")
         .attr("class", "relative")
         .on("click", function() {
​
            var_y = 'rank';
            update();
​
          })
         .html("relative");
​
});
​
function update() {
​
  y.domain(d3.extent(flatten_values(cities, var_y)));
​
  if(var_y === 'rank') {
​
    ease_type = 'linear'
​
  } else {
​
    ease_type = 'bounce'
​
  }
​
  yAxis = d3.svg.axis()
        .scale(y)
        .orient("left");
​
  svg.selectAll(".y.axis")
      .transition().duration(1000).ease(ease_type)
      .call(yAxis);
​
  city.selectAll(".names")
      .transition().duration(1000).ease(ease_type)
      .attr("transform", function(d) {
        return "translate(" + x(d.values[d.values.length - 1][var_x]) + "," + y(d.values[d.values.length - 1][var_y]) + ")";
      });
//      .attr("x", 3)
//      .attr("dy", ".35em")
//      .text(function(d) { return d.name; });
​
  path.transition().duration(1000).ease(ease_type).attr("d", function(d) { return line(d.values); })
​
}
​
</script>
​
    