D3 Examples - Lecture 3 HW

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<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
  </style>
</head>
​
<body>
  <script>
​
        var data=d3.csv('stocks.csv',function(error, data){
      var dataset=data;
    data.forEach(function(d){
        d.price = +d.price;
      })
        
    var color = d3.scaleOrdinal(d3.schemeCategory20);
      
    var svg = d3.select("body").append("svg")
      .attr("width", 960)
      .attr("height", 500)
        .on("click",function(){
        var opp_hor = (d3.select("rect.horizontal").style("opacity"));
        var opp_ver = (d3.select("rect.vertical").style("opacity"));
        svg.selectAll("rect.horizontal").style("opacity",Math.abs(100-opp_hor));
        svg.selectAll("rect.vertical").style("opacity",Math.abs(100-opp_ver));
        });
​
    var x0 = d3.scaleBand()
        .range([0, d3.select("svg").attr("width")])
            .domain(d3.map(data,function(d) { return d.symbol; }).keys());
      
    var y0 = d3.scaleLinear()
        .domain([0, d3.max(data, function(d){return d.price})])
        .range([0, +d3.select("svg").attr("height")/3]);
      
    var x1 = d3.scaleBand()
        .range([0, d3.select("svg").attr("height")])
            .domain(d3.map(data,function(d) { return d.symbol; }).keys());
      
    var y1 = d3.scaleLinear()
        .domain([0, d3.max(data, function(d){return d.price})])
        .range([0, +d3.select("svg").attr("width")/3]);
           
    
        var s = svg.selectAll("rect").data(data);
    
    s.enter()
     .append("rect")
     .attr("class", "vertical")
    
    s.enter()
     .append("rect")
     .attr("class", "horizontal")
    
​
​
    svg.selectAll("rect.vertical")
        .attr("class", "vertical")
      .attr("height", function(d, i) {return x1.bandwidth(); })
      .attr("width", function(d, i) { return y1(d.price); })
      .attr("y", function(d, i) {return x1(d.symbol); })
      .attr("x",  function(d) { return 0 })
      .style("fill", function(d){return color(d.symbol)})
      .style('opacity',0)
        .on('click', function(d){
        svg.selectAll("rect.vertical").style('opacity',0);
        svg.selectAll("rect.horizontal").style('opacity',100)
         })
    
    svg.selectAll("rect.horizontal")
        .attr("class", "horizontal")
        .attr("width", function(d, i) {return x0.bandwidth(); })
      .attr("height", function(d, i) { return y0(d.price); })
      .attr("x", function(d, i) {return x0(d.symbol); })
      .attr("y",  function(d) { return 400 - y0(d.price); })
        .style("fill", function(d){return color(d.symbol)})
        .style('opacity',100)
      
    })
​
  </script>
</body>
​
    