.block

## .block
license: gpl-3.0

## README.md

      
        

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

  

  

## data.tsv

        
        name
        value

        
        A
        .08167

        
        B
        .01492

        
        C
        .02782

        
        D
        .04253

        
        E
        .12702

        
        F
        .02288

        
        G
        .02015

        
        H
        .06094

        
        I
        .06966

        
        J
        .00153

        
        K
        .00772

        
        L
        .04025

        
        M
        .02406

        
        N
        .06749

        
        O
        .07507

        
        P
        .01929

        
        Q
        .00095

        
        R
        .05987

        
        S
        .06327

        
        T
        .09056

        
        U
        .02758

        
        V
        .00978

        
        W
        .02360

        
        X
        .00150

        
        Y
        .01974

        
        Z
        .00074

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

.bar {
  fill: steelblue;
}

.axis text {
  font: 10px sans-serif;
}

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

.x.axis path {
  display: none;
}

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

var margin = {top: 20, right: 30, bottom: 30, left: 40},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

var x = d3.scale.ordinal()
    .rangeRoundBands([0, width], .1);

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

var xAxis = d3.svg.axis()
    .scale(x)
    .orient("bottom");

var yAxis = d3.svg.axis()
    .scale(y)
    .orient("left");

var chart = d3.select(".chart")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
  .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

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

  chart.append("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis);

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

  chart.selectAll(".bar")
      .data(data)
    .enter().append("rect")
      .attr("class", "bar")
      .attr("x", function(d) { return x(d.name); })
      .attr("y", function(d) { return y(d.value); })
      .attr("height", function(d) { return height - y(d.value); })
      .attr("width", x.rangeBand());
});

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

</script>

## thumbnail.png

      
        

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              thumbnail.png