D3 Examples - UCE 2000-2015 Performance Bump Chart made with D3.js

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<!DOCTYPE html>
<head>
  <meta charset="UTF-8">
  <title>Top 20: UCE School Performance Bump Chart (2000 - 2015)</title>
</head>
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<style>
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body {
  font-size:14px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-style: bold;
}
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.x.axis path,.x.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}
​
.y.axis path {
  fill: none;
}
​
.y.axis line {
  fill: none;
  stroke: #eeeeee;
  shape-rendering: crispEdges;
}
​
h1{
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 26px;
  font-style: bold;
  
}
p{
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 16px;  
}
</style>
​
<body>
<h1>Top 20: UCE School Performance Bump Chart (2000 - 2015)</h1>
<h5> Hover over a School Name or Line to view how its done over the past decade</h5>
<p>
<FORM>
<INPUT TYPE="button" onClick="history.go(0)" VALUE="Refresh">
</FORM>
</p>
<!-- <script src="https://d3js.org/d3.v3.min.js"></script> -->
<script src="https://d3js.org/d3.v3.js"></script>
<script>
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​
​
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var margin = {top: 20, right: 250, bottom: 50, left: 30},
    width = 1000 - margin.left - margin.right,
    height = 600 - margin.top - margin.bottom;
​
var speed = 1000;
var valueFormat = d3.format("");
​
var x = d3.scale.linear()
    .range([0,width]);
​
var y = d3.scale.ordinal()
    .rangeRoundBands([height, 0], .1);
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var xAxis = d3.svg.axis()
    .scale(x)
    .tickSize(0)
    .ticks(13)
    .orient("bottom")
    .tickFormat(valueFormat)
    ;
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var xAxis1 = d3.svg.axis()
    .scale(x)
    .tickSize(0)
    .ticks(13)
    .orient("top")
    .tickFormat(valueFormat)
    ;
​
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var yAxis = d3.svg.axis()
    .scale(y)
    .tickSize(-width)
    .tickPadding(10)
    .orient("left");
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var line = d3.svg.line()
    .x(function(d) { return x(d.year); })
    .y(function(d) { return y(d.position) + y.rangeBand()/2; });
​
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 clip = svg.append("clipPath")
    .attr("id", "clip")
    .append("rect")
    .attr("width", 0)
    .attr("height", height);
​
var year; // As a Global 
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d3.json("ugo.txt", function(error, data) { 
  
  y.domain(d3.range(1,d3.max(data.standing, function(school) { return d3.max(school.rank, function(d) { return d.position; }); }) + 1 ).reverse());
  //xAxis.tickValues(data.standing[0].rank.map(function(d) { return d.year; }));
  x.domain(d3.extent(data.standing[0].rank.map(function(d) { return d.year; })));
​
  //x.domain([2000, 2015]);
  
  //set y axis
  svg.append("g")
  .attr("class", "y axis")
    .call(yAxis);
​
  //set bottom axis position
  svg.append("g")
  .attr("class", "x axis")
  .attr("transform", "translate(" + 0 + "," + 526  + ")")
    .call(xAxis);
​
  //set top axis
  svg.append("g")
    .attr("class", "x axis")
    .call(xAxis1);
​
  var school = svg.selectAll(".school")
      .data(data.standing)
      .enter().append("g")
      .attr("class", "school");
​
  var path = school.append("path")
      .attr("class", "line")
      .style("stroke", function(d) { return d.color; })
      .style("stroke-width", 4)
      .style("fill","none")
      .attr("clip-path", function(d) { return "url(#clip)"; })
      .attr("d", function(d) { return line(d.rank); })
      .on("mouseover", function (d) {
        school.style("opacity",0.2);
        school.filter(function(path) {return path.schoolName === d.schoolName; }).style("opacity",1);
      })
      .on("mouseout", function (d) { school.style("opacity",1); })
;
​
  var circleStart = school.append("circle")
      .attr("cx", function(d) { return x(d.rank[0].year); })
      .attr("cy", function(d) { return y(d.rank[0].position) + y.rangeBand()/2; })
  //    .style("fill", function(d) { return d.color; })
      .attr("r", 6)
      .style("stroke", function(d) { return d.color; })
      .style("stroke-width", 4)
      .style("fill", "white")
      .on("mouseover", function (d) {
        school.style("opacity",0.2);
        school.filter(function(path) {return path.schoolName === d.schoolName; }).style("opacity",1);
      })
      .on("mouseout", function (d) { school.style("opacity",1); })
​
  
  var circleEnd = school.append("circle")
      .attr("cx", function(d) { return x(d.rank[0].year); })
      .attr("cy", function(d) { return y(d.rank[0].position) + y.rangeBand()/2; })
     // .style("fill", function(d) { return d.color; })
      .attr("r", 6)
      .style("stroke", function(d) { return d.color; })
      .style("stroke-width", 4)
      .style("fill", "white")
      .on("mouseover", function (d) {
        school.style("opacity",0.2);
        school.filter(function(path) {return path.schoolName === d.schoolName; }).style("opacity",1);
      })
      .on("mouseout", function (d) { school.style("opacity",1); })
      
​
  // text label for the x axis
  svg.append("text")      
        .attr("x", width / 2 )
        .attr("y",  height + (margin.bottom/1.5))
        .attr("style","font-size:16px;") // to bold title
        .style("text-anchor", "middle")
        .text("Year");
    
​
​
  var label = school.append("text")
​
      .attr("transform", function(d) { return "translate(" + x(d.rank[0].year) + "," + (y(d.rank[0].position) + y.rangeBand()/2) + ")"; })
      .attr("x", 8)
      .attr("dy", ".31em")
      .on("mouseover", function (d) {
        school.style("opacity",0.2);
        school.filter(function(path) {return path.schoolName === d.schoolName; }).style("opacity",1);
      })
      .on("mouseout", function (d) { school.style("opacity",1); })
      .style("cursor","pointer")
      .style("fill", function(d) { return d.color; })
      .style("font-weight", "bold")
      .text(function(d) { return ""+ d.rank[0].position + " " + d.schoolName; });
//   .text(function(d) { return ""+ d.rank[0].position + " " + d.schoolName; });
​
   
  var year = 1;
​
​
  var transition = d3.transition()
    .duration(speed)
    .each("start", function start() {
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      label.transition()
        .duration(speed)
        .ease('linear')
        .attr("transform", function(d) { return "translate(" + x(d.rank[year].year) + "," + (y(d.rank[year].position) + y.rangeBand()/2) + ")"; })
        .text(function(d) { return  " " +  " " + d.schoolName; });
  
      circleEnd.transition()
        .duration(speed)
        .ease('linear')
        .attr("cx", function(d) { return x(d.rank[year].year); })
        .attr("cy", function(d) { return y(d.rank[year].position) + y.rangeBand()/2; });
​
      clip.transition()
        .duration(speed)
        .ease('linear')
        .attr("width", x((year*2000)+1))
        .attr("height", height);
      
      year+=1;
​
      if (year !== data.standing[0].rank.length) transition = transition.transition().each("start", start);
     
    });
​
});
​
​
</script>
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<p></p>
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</body>
    