mbostock · January 24, 2018 15:53
diff --git a/.block b/.block
 license: gpl-3.0
diff --git a/README.md b/README.md
diff --git a/data.tsv b/data.tsv
diff --git a/index.html b/index.html
 <!DOCTYPE html>
 <meta charset="utf-8">
 <style>

 svg {
  font: 10px sans-serif;
 }

 .axis path,
 .axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
 }

 .rect {
  fill: #333;
 }

 .rect--negative {
  fill: brown;
 }

 .label {
  fill: white;
  font-size: 12px;
  text-anchor: end;
 }

 .label-change {
  font-weight: bold;
 }

 .label-value {
  fill-opacity: 0.8;
 }

 .label--negative {
  text-anchor: start;
 }

 </style>
 <svg width="960" height="500"></svg>
 <script src="//d3js.org/d3.v4.0.0-alpha.9.min.js"></script>
 <script>

 var formatChange = d3.format("+d"),
    formatValue = d3.format("d");

 var svg = d3.select("svg");

 var margin = {top: 20, right: 40, bottom: 40, left: 80},
    width = +svg.attr("width") - margin.left - margin.right,
    height = +svg.attr("height") - margin.top - margin.bottom;

 var g = svg.append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

 d3.requestTsv("data.tsv", function(d) {
  d.value = +d.value;
  return d;
 }, function(error, data) {
  if (error) throw error;

  // Compute a simple “stack” by iterating over the data.
  data.reduce(function(v, d) { return d.value1 = (d.value0 = v) + d.value; }, 0);

  var x = d3.scaleLinear()
      .domain(d3.extent(data, function(d) { return d.value1; })).nice()
      .range([0, width]);

  var y = d3.scaleBand()
      .domain(data.map(function(d) { return d.region; }))
      .rangeRound([0, height])
      .padding(0.1);

  g.append("g")
      .attr("transform", "translate(0," + height + ")")
      .attr("class", "axis axis--x")
      .call(d3.axisBottom(x));

  g.append("g").selectAll("rect")
      .data(data)
    .enter().append("rect")
      .attr("class", function(d) { return "rect rect--" + (d.value0 < d.value1 ? "positive" : "negative"); })
      .attr("y", function(d) { return y(d.region); })
      .attr("x", function(d) { return x(d.value0 < d.value1 ? d.value0 : d.value1); })
      .attr("width", function(d) { return d.value0 < d.value1 ? x(d.value1) - x(d.value0) : x(d.value0) - x(d.value1); })
      .attr("height", y.bandwidth());

  var label = g.append("g").selectAll("text")
      .data(data)
    .enter().append("text")
      .attr("class", function(d) { return "label label--" + (d.value0 < d.value1 ? "positive" : "negative"); })
      .attr("y", function(d) { return y(d.region) + y.bandwidth() / 2; });

  label.append("tspan")
      .attr("class", "label-change")
      .attr("dy", "-.2em")
      .text(function(d) { return formatChange(d.value1 - d.value0); });

  label.append("tspan")
      .attr("class", "label-value")
      .attr("dy", "1.1em")
      .text(function(d) { return formatValue(d.value1); });

  label.selectAll("tspan")
      .attr("x", function(d) { return x(d.value1) + (d.value0 < d.value1 ? -6 : 6); });

  g.append("g")
      .attr("class", "axis axis--y")
      .attr("transform", "translate(" + x(0) + ",0)")
      .call(d3.axisLeft(y).tickSize(0).tickPadding(x(0) + 6));
 });

 </script>
diff --git a/thumbnail.png b/thumbnail.png
	region	value
	N. America	47
	Europe	22
	Asia	12
	Australia	7
	Middle East	-3
	Africa	-26
	S. America	-69
	<!DOCTYPE html>
	<meta charset="utf-8">
	<style>

	svg {
	font: 10px sans-serif;
	}

	.axis path,
	.axis line {
	fill: none;
	stroke: #000;
	shape-rendering: crispEdges;
	}

	.rect {
	fill: #333;
	}

	.rect--negative {
	fill: brown;
	}

	.label {
	fill: white;
	font-size: 12px;
	text-anchor: end;
	}

	.label-change {
	font-weight: bold;
	}

	.label-value {
	fill-opacity: 0.8;
	}

	.label--negative {
	text-anchor: start;
	}

	</style>
	<svg width="960" height="500"></svg>
	<script src="//d3js.org/d3.v4.0.0-alpha.9.min.js"></script>
	<script>

	var formatChange = d3.format("+d"),
	formatValue = d3.format("d");

	var svg = d3.select("svg");

	var margin = {top: 20, right: 40, bottom: 40, left: 80},
	width = +svg.attr("width") - margin.left - margin.right,
	height = +svg.attr("height") - margin.top - margin.bottom;

	var g = svg.append("g")
	.attr("transform", "translate(" + margin.left + "," + margin.top + ")");

	d3.requestTsv("data.tsv", function(d) {
	d.value = +d.value;
	return d;
	}, function(error, data) {
	if (error) throw error;

	// Compute a simple “stack” by iterating over the data.
	data.reduce(function(v, d) { return d.value1 = (d.value0 = v) + d.value; }, 0);

	var x = d3.scaleLinear()
	.domain(d3.extent(data, function(d) { return d.value1; })).nice()
	.range([0, width]);

	var y = d3.scaleBand()
	.domain(data.map(function(d) { return d.region; }))
	.rangeRound([0, height])
	.padding(0.1);

	g.append("g")
	.attr("transform", "translate(0," + height + ")")
	.attr("class", "axis axis--x")
	.call(d3.axisBottom(x));

	g.append("g").selectAll("rect")
	.data(data)
	.enter().append("rect")
	.attr("class", function(d) { return "rect rect--" + (d.value0 < d.value1 ? "positive" : "negative"); })
	.attr("y", function(d) { return y(d.region); })
	.attr("x", function(d) { return x(d.value0 < d.value1 ? d.value0 : d.value1); })
	.attr("width", function(d) { return d.value0 < d.value1 ? x(d.value1) - x(d.value0) : x(d.value0) - x(d.value1); })
	.attr("height", y.bandwidth());

	var label = g.append("g").selectAll("text")
	.data(data)
	.enter().append("text")
	.attr("class", function(d) { return "label label--" + (d.value0 < d.value1 ? "positive" : "negative"); })
	.attr("y", function(d) { return y(d.region) + y.bandwidth() / 2; });

	label.append("tspan")
	.attr("class", "label-change")
	.attr("dy", "-.2em")
	.text(function(d) { return formatChange(d.value1 - d.value0); });

	label.append("tspan")
	.attr("class", "label-value")
	.attr("dy", "1.1em")
	.text(function(d) { return formatValue(d.value1); });

	label.selectAll("tspan")
	.attr("x", function(d) { return x(d.value1) + (d.value0 < d.value1 ? -6 : 6); });

	g.append("g")
	.attr("class", "axis axis--y")
	.attr("transform", "translate(" + x(0) + ",0)")
	.call(d3.axisLeft(y).tickSize(0).tickPadding(x(0) + 6));
	});

	</script>