mikeyee/README.md

## README.md

      
    Raw
  

              README.md
            
          
    A simple SVG bar chart. Part of the tutorial series Let’s Make a Bar Chart.

  
## data.tsv

          
            name
            value

            
              Locke
              4

            
              Reyes
              8

            
              Ford
              15

            
              Jarrah
              16

            
              Shephard
              23

            
              Kwon
              42

## index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>

.chart rect {
  fill: steelblue;
}

.chart text {
  fill: white;
  font: 10px sans-serif;
  text-anchor: end;
}

</style>
<svg class="chart"></svg>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>

var width = 420,
    barHeight = 20;

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

var chart = d3.select(".chart")
    .attr("width", width);

d3.tsv("data.tsv", type, function(error, data) {
  x.domain([0, d3.max(data, function(d) { return d.value; })]);

  chart.attr("height", barHeight * data.length);

  var bar = chart.selectAll("g")
      .data(data)
    .enter().append("g")
      .attr("transform", function(d, i) { return "translate(0," + i * barHeight + ")"; });

  bar.append("rect")
      .attr("width", function(d) { return x(d.value); })
      .attr("height", barHeight - 1);

  bar.append("text")
      .attr("x", function(d) { return x(d.value) - 3; })
      .attr("y", barHeight / 2)
      .attr("dy", ".35em")
      .text(function(d) { return d.value; });
});

function type(d) {
  d.value = +d.value; // coerce to number
  return d;
}

</script>

## thumbnail.png

      
    Raw
  

              thumbnail.png
	<!DOCTYPE html>
	<meta charset="utf-8">
	<style>

	.chart rect {
	fill: steelblue;
	}

	.chart text {
	fill: white;
	font: 10px sans-serif;
	text-anchor: end;
	}

	</style>
	<svg class="chart"></svg>
	<script src="http://d3js.org/d3.v3.min.js"></script>
	<script>

	var width = 420,
	barHeight = 20;

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

	var chart = d3.select(".chart")
	.attr("width", width);

	d3.tsv("data.tsv", type, function(error, data) {
	x.domain([0, d3.max(data, function(d) { return d.value; })]);

	chart.attr("height", barHeight * data.length);

	var bar = chart.selectAll("g")
	.data(data)
	.enter().append("g")
	.attr("transform", function(d, i) { return "translate(0," + i * barHeight + ")"; });

	bar.append("rect")
	.attr("width", function(d) { return x(d.value); })
	.attr("height", barHeight - 1);

	bar.append("text")
	.attr("x", function(d) { return x(d.value) - 3; })
	.attr("y", barHeight / 2)
	.attr("dy", ".35em")
	.text(function(d) { return d.value; });
	});

	function type(d) {
	d.value = +d.value; // coerce to number
	return d;
	}

	</script>