d3noob/.block

## .block
license: mit

## README.md

      
    Raw
  

              README.md
            
          
    This is a d3.js bar chart as used as an example in the book D3 Tips and Tricks.
It is derived from the Mike Bostock's Bar Chart example but it is a slightly cut down version.

  
## bar-data.csv

          
            date
            value

            
              2013-01
              53

            
              2013-02
              165

            
              2013-03
              269

            
              2013-04
              344

            
              2013-05
              376

            
              2013-06
              410

            
              2013-07
              421

            
              2013-08
              405

            
              2013-09
              376

            
              2013-10
              359

            
              2013-11
              392

            
              2013-12
              433

            
              2014-01
              455

            
              2014-02
              478

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

<head>
	<style>

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

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

	</style>
</head>

<body>

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.17/d3.min.js"></script>

<script>

var margin = {top: 20, right: 20, bottom: 70, left: 40},
    width = 600 - margin.left - margin.right,
    height = 300 - margin.top - margin.bottom;

// Parse the date / time
var	parseDate = d3.time.format("%Y-%m").parse;

var x = d3.scale.ordinal().rangeRoundBands([0, width], .05);

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

var xAxis = d3.svg.axis()
    .scale(x)
    .orient("bottom")
    .tickFormat(d3.time.format("%Y-%m"));

var yAxis = d3.svg.axis()
    .scale(y)
    .orient("left")
    .ticks(10);

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 + ")");

d3.csv("bar-data.csv", function(error, data) {

    data.forEach(function(d) {
        d.date = parseDate(d.date);
        d.value = +d.value;
    });

  x.domain(data.map(function(d) { return d.date; }));
  y.domain([0, d3.max(data, function(d) { return d.value; })]);

  svg.append("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis)
    .selectAll("text")
      .style("text-anchor", "end")
      .attr("dx", "-.8em")
      .attr("dy", "-.55em")
      .attr("transform", "rotate(-90)" );

  svg.append("g")
      .attr("class", "y axis")
      .call(yAxis)
    .append("text")
      .attr("transform", "rotate(-90)")
      .attr("y", 6)
      .attr("dy", ".71em")
      .style("text-anchor", "end")
      .text("Value ($)");

  svg.selectAll("bar")
      .data(data)
    .enter().append("rect")
      .style("fill", "steelblue")
      .attr("x", function(d) { return x(d.date); })
      .attr("width", x.rangeBand())
      .attr("y", function(d) { return y(d.value); })
      .attr("height", function(d) { return height - y(d.value); });

});

</script>

</body>

## thumbnail.png

      
    Raw
  

              thumbnail.png
	date	value
	2013-01	53
	2013-02	165
	2013-03	269
	2013-04	344
	2013-05	376
	2013-06	410
	2013-07	421
	2013-08	405
	2013-09	376
	2013-10	359
	2013-11	392
	2013-12	433
	2014-01	455
	2014-02	478
	<!DOCTYPE html>
	<meta charset="utf-8">

	<head>
	<style>

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

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

	</style>
	</head>

	<body>

	<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.17/d3.min.js"></script>

	<script>

	var margin = {top: 20, right: 20, bottom: 70, left: 40},
	width = 600 - margin.left - margin.right,
	height = 300 - margin.top - margin.bottom;

	// Parse the date / time
	var parseDate = d3.time.format("%Y-%m").parse;

	var x = d3.scale.ordinal().rangeRoundBands([0, width], .05);

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

	var xAxis = d3.svg.axis()
	.scale(x)
	.orient("bottom")
	.tickFormat(d3.time.format("%Y-%m"));

	var yAxis = d3.svg.axis()
	.scale(y)
	.orient("left")
	.ticks(10);

	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 + ")");

	d3.csv("bar-data.csv", function(error, data) {

	data.forEach(function(d) {
	d.date = parseDate(d.date);
	d.value = +d.value;
	});

	x.domain(data.map(function(d) { return d.date; }));
	y.domain([0, d3.max(data, function(d) { return d.value; })]);

	svg.append("g")
	.attr("class", "x axis")
	.attr("transform", "translate(0," + height + ")")
	.call(xAxis)
	.selectAll("text")
	.style("text-anchor", "end")
	.attr("dx", "-.8em")
	.attr("dy", "-.55em")
	.attr("transform", "rotate(-90)" );

	svg.append("g")
	.attr("class", "y axis")
	.call(yAxis)
	.append("text")
	.attr("transform", "rotate(-90)")
	.attr("y", 6)
	.attr("dy", ".71em")
	.style("text-anchor", "end")
	.text("Value ($)");

	svg.selectAll("bar")
	.data(data)
	.enter().append("rect")
	.style("fill", "steelblue")
	.attr("x", function(d) { return x(d.date); })
	.attr("width", x.rangeBand())
	.attr("y", function(d) { return y(d.value); })
	.attr("height", function(d) { return height - y(d.value); });

	});

	</script>

	</body>