D3 Examples - Running VIII

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<!DOCTYPE html>
<meta charset="utf-8">
<style>
​
body {
  font: 10px sans-serif;
}
​
.axis path,
.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}
​
</style>
<body> 
  <div id="dropdown"></div>
  <div id="chart"></div>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script>
​
var margin = {top: 20, right: 20, bottom: 30, left: 40},
    width = 900 - margin.left - margin.right,
    height = 450 - margin.top - margin.bottom;
​
var x = d3.scaleLinear()
    .range([0, width]);
​
var y = d3.scaleLinear()
    .range([height, 0]);
​
var color = d3.scaleOrdinal(d3.schemeCategory10);
​
var xAxis = d3.axisBottom(x);
​
var yAxis = d3.axisLeft(y);
​
var svg = d3.select("#chart").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 + ")");
​
d3.tsv("running.tsv", function(error, data) {
  if (error) throw error;
​
  data.forEach(function(d) {
    d["Distance"] = +d["Distance"];
    d["Elevation Gain"] = +d["Elevation Gain"];
    d["Avg HR"] = +d["Avg HR"];
    d["Max HR"] = +d["Max HR"];
  });
​
  data = data.filter(function(d) { return d["Avg HR"] > 0 });
  data = data.filter(function(d) { return d["Max HR"] > 0 });
​
  var options = ["Distance","Elevation Gain","Avg HR","Max HR"];
  x.domain(d3.extent(data, function(d) { return d["Distance"]; })).nice();
  y.domain(d3.extent(data, function(d) { return d["Elevation Gain"]; })).nice();
​
  svg.append("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis)
    .append("text")
      .attr("class", "label")
      .attr("x", width)
      .attr("y", -6)
      .style("text-anchor", "end")
      .text("Distance");
​
  svg.append("g")
      .attr("class", "y axis")
      .call(yAxis)
    .append("text")
      .attr("class", "label")
      .attr("transform", "rotate(-90)")
      .attr("y", 6)
      .attr("dy", ".71em")
      .style("text-anchor", "end")
      .text("Elevation Gain")
​
  svg.selectAll("circle")
      .data(data)
    .enter().append("circle")
      .attr("class",function(d) { return d["Day of Week"]; })
      .attr("r", 5)
      // adjusting size 
      .attr("cx", function(d) { return x(d["Distance"]); })
      .attr("cy", function(d) { return y(d["Elevation Gain"]); })
      // Adjusting by color 
      .style("stroke", "#fff")
      .style("fill", "0000ff")
      .style("fill", function(d) { return color(d["Day of Week"]); });
​
​
  var legend = svg.selectAll(".legend")
      .data(color.domain())
    .enter().append("g")
      .attr("class", "legend")
      .attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; });
​
  legend.append("rect")
      .attr("x", width - 18)
      .attr("width", 18)
      .attr("height", 18)
      .style("fill", color)
      // Adding interactivity 
      .on("mouseenter", function(d) {
​
        d3.selectAll("circle")
          .style("fill-opacity", .1);
​
        d3.selectAll("." + d)
          .style("fill-opacity", 1);
      })
      .on("mouseleave", function(d) {
​
        d3.selectAll("circle")
          .style("fill-opacity", 1);
      })
​
​
  legend.append("text")
      .attr("x", width - 24)
      .attr("y", 9)
      .attr("dy", ".35em")
      .style("text-anchor", "end")
      .text(function(d) { return d; });
​
​
  // Add in other features
  var options = ["Elevation Gain","Distance","Avg HR","Max HR"];
  
  var dropdown = d3.select("#dropdown")
      .append("select")
      .on("change", change);
​
  dropdown.selectAll("option")
      .data(options)
    .enter().append("option")
    .text(function(d) { return d; }); 
    
  function change() { 
​
    var column = this.value;
​
    y.domain(d3.extent(data, function(d) { return d[column]; })).nice();
​
    d3.selectAll("circle")
      .transition()
      .duration(2000)
      .attr("cy", function(d) { return y(d[column]); })
​
    d3.select(".y")
      .transition()
      .call(yAxis)
      .select(".label")
      .text(column)
  }
​
});
​
</script>
    