interactive-vis-course/Week10/small_multiples_each_trans_diffaxis.html at gh-pages · arnicas/interactive-vis-course · GitHub

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<!DOCTYPE html>
<meta charset="utf-8">

<!-- CSS style for table filters based on Nathan Yau's in his tutorial for How American's Spend Their Days -->


<style>

body{
  font:10px Helvectica,Arial,sans-serif;
}

a{
  color:#821122;
}

#header{
  border-bottom:1px solid #ccc;
  margin:20px 26px 20px 20px;
}
#header h1{
  font-size:2.4em;
  font-family:Georgia,Palatino,serif;
  font-weight:normal;
}
#header p{
  font-family:Georgia,Palatino,serif;
  font-size:1.3em;
  line-height:1.4em;}

#explain {
  margin: 0 0 0 20px;
}

#explain h3{
  font-size:1.5em;
  margin:0 0 0.5em 0;
  padding:0;
}

#explain p{
  font-size:1.2em;
  line-height:1.4em;
  color:#717171;
  margin-top:0;
}

#filters{
  margin:0 24px 10px 16px;
  float:right;
}

.area{
  fill:#e2e2e2;
  stroke: #888;
  stroke-width: 0.5px;
}

.line {
  fill:none;
  stroke:steelblue;
  stroke-width:1.5px;
}

.endpoint {
  fill: steelblue;
}

#filters table{
  border-collapse:collapse;
  border-top:1px solid #ccc;
}

#filters table td{
  padding:0;margin:0;
}

#filters a{
  display:block;
  padding:2px 4px;
  font-size:1.1em;
  color:#919292;
  background:#F0F4F5;
  cursor:pointer;
  border-left:1px solid #CCCCCC;
  border-bottom:1px solid #CCCCCC;
  border-right:1px solid #CCCCCC;
  overflow:hidden;
}

#filters a:hover{
  text-decoration:underline;
}
#filters a.current{
  background:#fff;color:#000;
  font-weight:bold;
}
#filters a.current:hover{
  text-decoration:none;
}

.left{
  float:left;
}

.clr{
  clear:both;
}

.label {
  fill: black;
  font-size: 1.1em;
}


.y.axis text, .axislabel {
  font-size: .85em;
  fill: #888;
}

</style>

<body>

<div id="header">
  <h2>Relative Progress on Illnesses in Selected African Countries, 2000-2013</h2>

  <p>Source: WHO. Scale differs across countries for each illness.</p>

</div>

<div id="explain" class="left">
<h3>Total</h3>
<p>Text about the total illnesses by country here.</p>
</div>

<div id="filters">
  <table class="left">
    <tr>
      <td><a id="Total" class="current">Totals</a></td>
    </tr>
    <tr>
      <td><a id="Measles">Measles</a></td>
    </tr>
    <tr>
      <td><a  id="Respiratory_infections">Respiratory Infections</a></td>
    </tr>
    <tr>
      <td><a id="Pertussis">Pertussis</a></td>
    </tr>
    <tr>
      <td><a id="Diarrhoeal_diseases">Diarrhoea and Related Diseases</a></td>
    </tr>
    </table>

    <table class="left">
    <tr>
      <td><a  id="Sepsis">Sepsis</a></td>
    </tr>
    <tr>
      <td><a  id="HIV_Aids">HIV and AIDS</a></td>
    </tr>
    <tr>
      <td><a id="Malaria">Malaria</a></td>
    </tr>
    <tr>
      <td><a id="Asphyxia_trauma">Asphyxia Trauma</a></td>
    </tr>
    <tr>
      <td><a id="Meningitis_encephalitis">Meningtitis and Encephalitis</a></td>
    </tr>
  </table>

</div>
  <div class="clr"></div>

<div id="vis"></div>

<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js"></script>
<script>

var explain = {
    "Total": "Rwanda and Botswana made significant rates of progress. Angola not so much.",
    "Measles":"Despite occasional outbreaks, all countries have made progress. The Democractic Republic of the Congo still suffers badly.",
    "Malaria": "Malaria has been reduced across most countries, with the exception of the Central African Republic.",
    "Asphyxia_trauma" : "Asphyxia and related trauma are still on the rise or relatively unchanged in many countries.",
    "Meningitis_encephalitis": "All countries show improvement in deaths from meningitis and encephalitis, but C.A.R. shows a slight increase.",
    "HIV_Aids": "HIV and Aids have been reduced generally, but may be on the increase in Angola and Nigeria.",
    "Sepsis": "Sepsis increased or remained almost flat in most countries except Rwanda.",
    "Diarrhoeal_diseases": "Presumably with access to better water, the diarrhoael diseases have been reduced across these countries.",
    "Respiratory_infections": "Little signficant improvement in progress.",
    "Pertussis": "Pertussis appears to be on the increase in many countries."
};

var countries = [];

var margin = {top: 30, right: 15, bottom: 20, left: 45},
    width = 250 - margin.left - margin.right,
    height = 100 - margin.top - margin.bottom;

var parseDate = d3.time.format("Year %Y").parse;
var outputDate = d3.time.format("%Y");

var x = d3.time.scale()
    .range([0, width]);

var y = d3.scale.linear()
    .range([height, 0]);

var yAxis = d3.svg.axis()
      .orient("left")
      .ticks(2)
      .outerTickSize(0)
      .innerTickSize(0)
      .tickFormat(d3.format("s"));

var current = "Total";

var area = d3.svg.area()
    .x(function(d) { return x(d.date); })
    .y0(height)
    .y1(function(d) { return y(d[current]); });

var line = d3.svg.line()
    .x(function(d) { return x(d.date); })
    .y(function(d) { return y(d[current]); });

d3.select("#explain h3").text(current);
d3.select("#explain p").html(explain[current]);

d3.csv("data/deaths_04yearsold_excerpt.csv", typeFix, function(error, data) {

  //typeFix is a function that parses the dates and sets the strings to numeric. See below!
  console.log("data after load", data);

  // Nest data by symbol.
  countries = d3.nest()
      .key(function(d) { return d.Country; })
      .sortKeys(d3.ascending)
      .sortValues(function(a,b) {return a.date - b.date;})
      .entries(data);

  // Compute the minimum and maximum date across symbols.
  // We assume values are sorted by date.
  x.domain([
    d3.min(countries, function(s) { return s.values[0].date; }),
    d3.max(countries, function(s) { return s.values[s.values.length - 1].date; })
  ]);

  // Add an SVG element for each country, with the desired dimensions and margin.
  var svg = d3.select("#vis").selectAll("svg")
      .data(countries)
    .enter().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 + ")")
      .each(multiple); // uses each to call the multiple code for each country

  function multiple(country) {

    var localsvg = d3.select(this);

    // domain set per chart in this example:
    y.domain([0, d3.max(country.values, function(v) { return +v[current];})
      ]);
    yAxis.scale(y);

    // Add the area path elements. Note: the y-domain is set per element.
    localsvg.append("path")
        .attr("class", "area")
        .attr("d", function(d) { return area(d.values); });

    // Add the line path elements. Note: the y-domain is set per element.
    localsvg.append("path")
        .attr("class", "line")
        .attr("d", function(d) { return line(d.values); });

     localsvg.append("text")
      .attr("class", "axislabel")
      .attr("x", 0)
      .attr("y", height + margin.bottom/2)
      .style("text-anchor", "start")
      .text(function(d) { return outputDate(d.values[0].date); });

    // Add a small label for the symbol name.

    localsvg.append("text")
      .attr("class", "label")
      .attr("x", width/2)
      .attr("y", -8)
      .style("text-anchor", "middle")
      .text(function(d) { return d.key; });

    localsvg.append("text")
      .attr("class", "axislabel")
      .attr("x", width)
      .attr("y", height + margin.bottom/2)
      .style("text-anchor", "end")
      .text(function(d) { return outputDate(d.values[d.values.length - 1].date);});

      // put a dot on last point
    localsvg.append("circle")
      .attr("class", "endpoint")
      .attr("cx", function(d) {return x(d.values[d.values.length - 1].date);})
      .attr("cy", function(d) {return y(d.values[d.values.length - 1][current]);})
      .attr("r", 2);

      // label the value on the last point
    localsvg.append("text")
     .attr("class", "endpoint")
      .attr("x", width)
      .attr("y", function(d) {return y(d.values[d.values.length - 1][current]);})
      .attr("dy", -5)
      .style("text-anchor", "end")
      .text(function(d) { return d.values[d.values.length - 1][current]; });

    localsvg.append("g").attr("class", "y axis").call(yAxis);

  } // end multiple

  // ui click stuff
  d3.selectAll("#filters a").on("click", function() {
      d3.selectAll("#filters a").classed("current", false);
      d3.select(this).classed("current", true);

      var label = d3.select(this).attr("text");
      var selection = d3.select(this).attr("id");
      current = selection;

      d3.select("#explain h3").text(current);
      d3.select("#explain p").html(explain[current]);

      transition(current);
  });

  function transition(current) {

      // current is the clicked on button's id, so the illness.

    console.log("in trans", y.domain());

    // svg is each of the charts, with country as the data - from when we created them.

    svg.each(function(country) {

      y.domain([0, d3.max(country.values, function(v) { return +v[current];})]
      );
      yAxis.scale(y);
      var chartTrans = d3.select(this).transition();
      chartTrans.select(".y.axis").call(yAxis);
      chartTrans.select("path.area")
        .attr("d", function(d) { return area(d.values); });
      chartTrans.select("path.line")
      .attr("d", function(d) { return line(d.values); });

      chartTrans.select("circle.endpoint")
      .attr("cy", function(d) {return y(d.values[d.values.length - 1][current]);});

        // label the value on the last point
      chartTrans.select("text.endpoint")
        .attr("y", function(d) {return y(d.values[d.values.length - 1][current]);})
        .text(function(d) { return d.values[d.values.length - 1][current]; });
      }); // end each
  } // end transition

});

// this function is applied to all the data values on load!

function typeFix(d) {
  d.Meningitis_encephalitis = +d.Meningitis_encephalitis;
  d.Respiratory_infections = +d.Respiratory_infections;
  d.Sepsis = +d.Sepsis;
  d.Pertussis = +d.Pertussis;
  d.HIV_Aids = +d.HIV_Aids;
  d.Diarrhoeal_diseases = +d.Diarrhoeal_diseases;
  d.Asphyxia_trauma = +d.Asphyxia_trauma;
  d.Malaria = +d.Malaria;
  d.Measles = +d.Measles;
  d.date = parseDate(d.Year);
  return d;
}

</script>