D3 Examples - Finanslov 2014

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<!DOCTYPE html>
<meta charset="utf-8">
<style>
svg {
  display: block;
  margin-left: auto;
  margin-right: auto;
}
​
.bar.positive {
  fill: steelblue;
}
​
.bar.negative {
  fill: brown;
}
​
rect.bar:hover {
  fill: orange;
}
​
.axis text {
  font: 10px sans-serif;
}
​
.axis path,
.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}
​
.d3-tip {
  line-height: 1;
  font-weight: bold;
  padding: 12px;
  background: rgba(0, 0, 0, 0.8);
  color: #fff;
  border-radius: 2px;
}
​
/* Creates a small triangle extender for the tooltip */
.d3-tip:after {
  box-sizing: border-box;
  display: inline;
  font-size: 10px;
  width: 100%;
  line-height: 1;
  color: rgba(0, 0, 0, 0.8);
  content: "\25BC";
  position: absolute;
  text-align: center;
}
​
/* Style northward tooltips differently */
.d3-tip.n:after {
  margin: -1px 0 0 0;
  top: 100%;
  left: 0;
}
</style>
<body>
<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<script src="https://labratrevenge.com/d3-tip/javascripts/d3.tip.min.js"></script>
<script charset="utf-8">
// Config
var beforeValue = "2013",
    afterValue = "2014";
var displayValue = "percent", // "percent", "absolute"
    showLabels = true, // true, false
    filterValue = 10; // 0-100
​
var margin = {top: 30, right: 10, bottom: 10, left: 10};
    if (showLabels === true) { margin.left = 225; }
    if (displayValue !== "percent") { margin.right = 35; }
    width = 720 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;
​
var x = d3.scale.linear()
    .range([0, width])
​
var y = d3.scale.ordinal()
    .rangeRoundBands([0, height], .2);
​
var xAxis = d3.svg.axis()
    .scale(x)
    .tickFormat(function(d) {
      return (displayValue === "percent") ? d+"%" : d;
    })
    .orient("top");
​
if (showLabels === true) {
  var yAxis = d3.svg.axis()
      .scale(y)
      .orient("left");
}
​
var tip = d3.tip()
  .attr('class', 'd3-tip')
  .offset([-10, 0])
  .html(function(d) {
    return "<strong>" + d.name + ":</strong> <span style='color:red'>" + Math.round(d.value) + ((displayValue === "percent") ? "%" : "") + "</span>";
  })
​
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 + ")");
​
svg.call(tip);
​
d3.csv("data.csv", type, function(error, data) {
  x.domain(d3.extent(data, function(d) { return d.value; })).nice();
  y.domain(data.filter(function(d) { return d.value > filterValue || d.value < -filterValue; }).map(function(d) { return d.name; }));
​
  svg.selectAll(".bar")
      .data(data.filter(function(d) { return d.value > filterValue || d.value < -filterValue; }))
    .enter().append("rect")
      .attr("class", function(d) { return d.value < 0 ? "bar negative" : "bar positive"; })
      .attr("x", function(d) { return x(Math.min(0, d.value)); })
      .attr("y", function(d) { return y(d.name); })
      .attr("width", function(d) { return Math.abs(x(d.value) - x(0)); })
      .attr("height", y.rangeBand())
      .on('mouseover', tip.show)
      .on('mouseout', tip.hide);
​
  svg.append("g")
      .attr("class", "x axis")
      .call(xAxis);
​
  svg.append("g")
      .attr("class", "y axis")
    .append("line")
      .attr("x1", x(0))
      .attr("x2", x(0))
      .attr("y2", height);
​
if (showLabels === true) {
  svg.append("g")
      .attr("class", "y axis")
      .call(yAxis)
      .append("text")
          .attr({
              "transform": "rotate(-90)",
              "y": 6,
              "dy": ".71em"
          })
          .style("text-anchor", "end")
          .text("");
}
});
​
function type(d) {
  if (displayValue === "percent") {
    d.value = (parseFloat(d[beforeValue]) - parseFloat(d[afterValue]));
    d.value = d.value/parseFloat(d[beforeValue])*100;
  } else {
    d.value = (parseFloat(d[beforeValue]) - parseFloat(d[afterValue]));
  }
  return d;
}
</script>
​
    