D3 Examples - rivalry performance

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<!DOCTYPE html>
<meta charset="utf-8">
<style>
​
body {
  font: 12px sans-serif;
}
​
.axis path,
.axis line {
  fill: none;
  stroke: #ddd;
  shape-rendering: crispEdges;
}
​
.x.axis path {
  //fill: #ddd;
  stroke: #ddd;
}
  
.tick {
fill: #999;
  }
​
.rivarly-line {
  fill: none;
  stroke: #ddd;
  stroke-width: 4px;
}
  
​
.expected-line {
  fill: none;
  stroke: #008281;
  stroke-width: 4px;
}  
  
.actual-line {
  fill: none;
  stroke: #0e1a36;
  stroke-width: 4px;
}   
  
  
 
.line {
  fill: none;
  stroke: steelblue;
  stroke-width: 4px;
}  
  
.selectedline {
  fill: none;
  stroke: steelblue;
  stroke-width: 8px;
}  
  
 .lineSelected {
    
 }
  
circle {
  pointer-events: all;
  cursor: points; 
}
 
.datapoint {
  pointer-events: "all";
  cursor: "pointer" !imporantant;  
  stroke-width: 2px;
}
  
​
</style>
<body>
​
<!-- load the d3.js library -->     
<script src="https://d3js.org/d3.v5.min.js"></script>
<script>
  
/*
#ffbd00 - gold
#0e1a36 - royal
#008281 - teal
#fafafa
#c1c1c1 - line
#f2f2f2;
*/
​
// set the dimensions and margins of the graph
const margin = {top: 20, right: 20, bottom: 70, left: 50},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;
​
// parse the date / time
const parseTime = d3.timeParse("%d-%b-%y");
​
// set the ranges
const x = d3.scaleTime().range([0, width]);
const y = d3.scaleLinear().range([height, 0]);
​
// define the line
// line options https://bl.ocks.org/d3noob/ced1b9b18bd8192d2c898884033b5529
// https://bl.ocks.org/emmasaunders/c25a147970def2b02d8c7c2719dc7502
  const valueline = d3.line()
        .curve(d3.curveCardinal)
    .x(function(d) { return x(d.date); })
    .y(function(d) { return y(d.close); });
​
// append the svg obgect to the body of the page
// appends a 'group' element to 'svg'
// moves the 'group' element to the top left margin
const 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 + ")");
  
//  
  
​
const drawChart = (data) => {
  
   data.forEach(function(d) {
      d.date = parseTime(d.date);
      d.close = +d.close;
  });
​
  // Scale the range of the data
  x.domain(d3.extent(data, function(d) { return d.date; }));
  y.domain([0, d3.max(data, function(d) { return 100; })]); //d.close;
​
  // Add the X Axis
  svg.append("g")
      .attr("class", "axis")
      .attr("transform", "translate(0," + height + ")")
      .call(d3.axisBottom(x).ticks(10))
      .selectAll("text")    
        .style("text-anchor", "end")
        .attr("dx", "-.8em")
        .attr("dy", ".15em")
        .attr("transform", "rotate(-65)");
​
  // Add the Y Axis
  svg.append("g")
      .attr("class", "axis")
      .call(d3.axisLeft(y));
    
}
​
const handleMouseClick = (d) => {
  
}
​
const handleMouseOver = (d) => {
  
}
​
const handleMouseOut = (d) => {
  
}
  
const drawLine = (data, lineClass, bDrawPoints) => {
​
  // format the data
  data.forEach(function(d) {
      d.date = parseTime(d.date);
      d.close = +d.close;
  });
​
  
  // Scale the range of the data
  x.domain(d3.extent(data, function(d) { return d.date; }));
  y.domain([0, d3.max(data, function(d) { return 100; })]); //d.close;
​
  // Add the valueline path.
  const path = svg.append("path")
      .data([data])
      .attr("class", lineClass)
      .attr("d", valueline);
  
  if (bDrawPoints) {
   
     svg.append('g').selectAll('circle')
          .data(data.reverse())
          .enter().append('circle')
                .on("click", function(d) { return handleMouseClick(d)})
          .on("mouseover", function(d) {return handleMouseOver(d)})
          .on("mouseover", function(d) {return handleMouseOut(d)})
          .attr("cx", function(d) { return x(d.date) })
          .attr("cy", function(d) { return y(d.close) })
          .attr("r", 0)
                .attr("class","datapoint")
          .style("opacity", function(d){ return (d.selected) ? 1 : 1})
          .style("fill", "white")
          .style("stroke", function(d) { return "#000" })
                .style("pointer-events", "all")
                .style("cursor", "pointer")
          .transition()
            .duration(1000)
            .delay( function(d,i){ return 250 + ( 750 * i) })
            .attr("r", 10);
          }
} 
​
  // Get the data
d3.csv("actual.csv").then( data => {
​
  drawChart(data);
​
​
},
error => {
// handle the error   
});
​
d3.csv("rivalry.csv").then( data => {
​
  drawLine(data, "rivarly-line");
​
},
error => {
// handle the error   
});
  
  d3.csv("expected.csv").then( data => {
​
  drawLine(data, "expected-line");
​
},
error => {
// handle the error   
});  
  
// Get the data
d3.csv("actual.csv").then( data => {
​
  drawLine(data, "actual-line", true);
​
​
},
error => {
// handle the error   
});
  
</script>
</body>
​
    