Old school D3 from simpler times

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BoltMaud

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TP3_BOLTMAUD

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forked from romsson's block: TP3_BOLTMAUD

<!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; }
    
		svg {
  		font: 10px sans-serif;
		}

.line {
      fill: none;
      stroke: black;
      stroke-width: 2px;
    }

</style>
</head>

<body>
  
  <script>
    
  var margin = {top: 20, right: 30, bottom: 20, left: 100},
      width = 760 - margin.left - margin.right,
      height = 300 - margin.top - margin.bottom;
    
  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 + ")");

var parseDate = d3.timeParse("%b %Y");

var x = d3.scaleTime().range([0, width]),
    y = d3.scaleLinear().range([height, 0]),
    c = d3.scaleOrdinal(d3.schemeCategory10);
    
    // draw the black line
    svg.append("line")
      .attr("x1", 0)
      .attr("x2", width)
      .attr("y1", height)
      .attr("y2", height)
      .attr("stroke-width", 2)
      .attr("stroke", "black");

var line = d3.line()
    .curve(d3.curveBasis)
    .x(function(d) { return x(d.date); })
    .y(function(d) { return y(d.price); });
    
  d3.text('dataset.csv', function(error, raw) {

var dsv = d3.dsvFormat(',')
    var data = dsv.parse(raw);
    
    // Nest stock values by symbol.
    var symbols = d3.nest()
        .key(function(d) { return d.symbol; })
        .entries(data);
		// Parse and caculate some values for each symbols
    symbols.forEach(function(s) {
      s.values.forEach(function(d) { 
        d.date = parseDate(d.date); 
        d.price = +d.price; 
      });
      
      s.maxPrice = d3.max(s.values, function(d) { return d.price; });
      s.sumPrice = d3.sum(s.values, function(d) { return d.price; });    
    });
    
    
    x.domain(d3.extent(data, function(d) { return d.date; }));
    y.domain([0, d3.max(symbols.map(function(d) { return d.maxPrice; }))]);

drawareas()
drawallarea()
drawlines()

function drawareas(){
		var area = d3.area()
      .x(function(d) { return x(d.date); })
      .y0(function(d){
        switch(d.symbol){
          case "AAPL":
            return height-height/4*3;
            break;
          case "IBM":
            return height-height/4;
            break;
          case "MSFT":
            return height;
         		break;
          default:
            return height-height/4*2;    
        }})
      .y1(function(d) 
          {
        switch(d.symbol){
          case "AAPL":
            return (y(d.price)/4);
            break;
          case "IBM":
            return y(d.price)/4+(height*2)/4;
            break;
          case "MSFT":
            return y(d.price)/4 +(height*3)/4;
         		break;
          default:
            return y(d.price)/4+height/4;    
        }});
       
   //create divs for the areas
    var svgs= svg.selectAll(".area").data(symbols).enter().append("path")
      .attr("class", "area")
      .attr("d", function(d,i) {y.domain([0, d.maxPrice]);return area(d.values,i); })
      .attr("fill", function(d) {return c(d.key);})
      .attr("opacity","0.5");
   
   var texts=svg.selectAll(".text").data(symbols).enter().append("text");
   texts
   		.attr("class", "text")
      .attr("x", x(x.domain()[1])+5)
      .attr("y", function(d){
         switch(d.key){
                case "AAPL":
                  return height-height/4*3-20;
                  break;
                case "IBM":
                  return height-height/4-20;
                  break;
                case "MSFT":
                  return height-20;
                  break;
                default:
                  return height-height/4*2-20;    
              }
  		 })
      .attr("dy", ".35em")
      .style("text-anchor", "start")
      .text(function(d) { return d.key; });
   
 }

function drawallarea(){
      // create areas
      var area = d3.area()
      .x(function(d) { return x(d.date); })
      .y0(height)
      .y1(function(d) { return y(d.price); });

//create divs for the areas
      svg.selectAll(".area").data(symbols).transition().duration(4000)
        .attr("class", "area")
        .attr("d", function(d) { return area(d.values); })
        .attr("fill", function(d) {return c(d.key);})
        .attr("opacity","0.5");
    }

function drawlines(){
        
     //creates divs fot texts and lines 
     var lines=svg.selectAll(".symbols").data(symbols).enter().append("path")
     
     // get the lines points
     lines
     			.attr("class", "line")
          .attr("d", function(d) { return line(d.values); })
          .style("stroke", function(d) { return c(d.key); })
     			.attr("opacity","0");
     lines.transition().duration(7000)
     			.attr("opacity","1");
      
     // draw the texts 
			svg.selectAll(".text").data(symbols).transition().duration(2000)
      .attr("x", x(x.domain()[1])+5)
      .attr("y", function(d){return y(d.maxPrice);})
      .attr("dy", ".35em")
      .text(function(d) { return d.key; });
   }
    
  });
    
  </script>
</body>

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