davo/index.html

## readme.md

      
    Raw
  

              readme.md
            
          
    This is a simple bar graph  written using d3.js v4.
This graph is part of the code samples for the update to the book D3 Tips and Tricks to version 4 of d3.js.

  
## index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style> /* set the CSS */

.bar { fill: steelblue; }

</style>
<body>

<!-- load the d3.js library -->
<script src="//d3js.org/d3.v4.min.js"></script>
<script>

var height, margin, svg, width, x, y;

margin = {
  top: 20,
  right: 20,
  bottom: 30,
  left: 40
};

width = 960 - margin.left - margin.right;

height = 500 - margin.top - margin.bottom;

x = d3.scaleBand().range([0, width]).padding(0.1);

y = d3.scaleLinear().range([height, 0]);

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('sales.csv', function(error, data) {
  if (error) {
    throw error;
  }
  data.forEach(function(d) {
    d.sales = +d.sales;
  });
  x.domain(data.map(function(d) {
    return d.salesperson;
  }));
  y.domain([
    0, d3.max(data, function(d) {
      return d.sales;
    })
  ]);
  svg.selectAll('.bar').data(data).enter().append('rect').attr('class', 'bar').attr('x', function(d) {
    return x(d.salesperson);
  }).attr('width', x.bandwidth()).attr('y', function(d) {
    return y(d.sales);
  }).attr('height', function(d) {
    return height - y(d.sales);
  });
  svg.append('g').attr('transform', 'translate(0,' + height + ')').call(d3.axisBottom(x));
  svg.append('g').call(d3.axisLeft(y));
});

</script>
</body>

## sales.csv

          
            salesperson
            sales

            
              Bob
              33

            
              Robin
              12

            
              Anne
              41

            
              Mark
              16

            
              Joe
              59

            
              Eve
              38

            
              Karen
              21

            
              Kirsty
              25

            
              Chris
              30

            
              Lisa
              47

            
              Tom
              5

            
              Stacy
              20

            
              Charles
              13

            
              Mary
              29

## thumbnail.png

      
    Raw
  

              thumbnail.png
	<!DOCTYPE html>
	<meta charset="utf-8">
	<style> /* set the CSS */

	.bar { fill: steelblue; }

	</style>
	<body>

	<!-- load the d3.js library -->
	<script src="//d3js.org/d3.v4.min.js"></script>
	<script>

	var height, margin, svg, width, x, y;

	margin = {
	top: 20,
	right: 20,
	bottom: 30,
	left: 40
	};

	width = 960 - margin.left - margin.right;

	height = 500 - margin.top - margin.bottom;

	x = d3.scaleBand().range([0, width]).padding(0.1);

	y = d3.scaleLinear().range([height, 0]);

	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('sales.csv', function(error, data) {
	if (error) {
	throw error;
	}
	data.forEach(function(d) {
	d.sales = +d.sales;
	});
	x.domain(data.map(function(d) {
	return d.salesperson;
	}));
	y.domain([
	0, d3.max(data, function(d) {
	return d.sales;
	})
	]);
	svg.selectAll('.bar').data(data).enter().append('rect').attr('class', 'bar').attr('x', function(d) {
	return x(d.salesperson);
	}).attr('width', x.bandwidth()).attr('y', function(d) {
	return y(d.sales);
	}).attr('height', function(d) {
	return height - y(d.sales);
	});
	svg.append('g').attr('transform', 'translate(0,' + height + ')').call(d3.axisBottom(x));
	svg.append('g').call(d3.axisLeft(y));
	});

	</script>
	</body>
	salesperson	sales
	Bob	33
	Robin	12
	Anne	41
	Mark	16
	Joe	59
	Eve	38
	Karen	21
	Kirsty	25
	Chris	30
	Lisa	47
	Tom	5
	Stacy	20
	Charles	13
	Mary	29