hrecht/README.md

## README.md

      
        

                
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              README.md
            
          
        
      
      
    This is a simple labelled bar chart using conventional margins, partly inspired by Mike Bostock's vertical example.

  

  

## index.html
<!DOCTYPE html>
<html>

<head>
    <meta charset='utf-8' />
    <title>Simple Bar chart</title>
    <script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
    <style>
        body {
            font-family: "Arial", sans-serif;
        }

        .bar {
            fill: #5f89ad;
        }

        .axis {
            font-size: 13px;
        }

        .axis path,
        .axis line {
            fill: none;
            display: none;
        }

        .label {
            font-size: 13px;
        }
    </style>

</head>

<body>

    <div id="graphic"></div>

    <script>
        var data = [{
                "name": "Apples",
                "value": 20,
        },
            {
                "name": "Bananas",
                "value": 12,
        },
            {
                "name": "Grapes",
                "value": 19,
        },
            {
                "name": "Lemons",
                "value": 5,
        },
            {
                "name": "Limes",
                "value": 16,
        },
            {
                "name": "Oranges",
                "value": 26,
        },
            {
                "name": "Pears",
                "value": 30,
        }];

        //sort bars based on value
        data = data.sort(function (a, b) {
            return d3.ascending(a.value, b.value);
        })

        //set up svg using margin conventions - we'll need plenty of room on the left for labels
        var margin = {
            top: 15,
            right: 25,
            bottom: 15,
            left: 60
        };

        var width = 960 - margin.left - margin.right,
            height = 500 - margin.top - margin.bottom;

        var svg = d3.select("#graphic").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 + ")");

        var x = d3.scale.linear()
            .range([0, width])
            .domain([0, d3.max(data, function (d) {
                return d.value;
            })]);

        var y = d3.scale.ordinal()
            .rangeRoundBands([height, 0], .1)
            .domain(data.map(function (d) {
                return d.name;
            }));

        //make y axis to show bar names
        var yAxis = d3.svg.axis()
            .scale(y)
            //no tick marks
            .tickSize(0)
            .orient("left");

        var gy = svg.append("g")
            .attr("class", "y axis")
            .call(yAxis)

        var bars = svg.selectAll(".bar")
            .data(data)
            .enter()
            .append("g")

        //append rects
        bars.append("rect")
            .attr("class", "bar")
            .attr("y", function (d) {
                return y(d.name);
            })
            .attr("height", y.rangeBand())
            .attr("x", 0)
            .attr("width", function (d) {
                return x(d.value);
            });

        //add a value label to the right of each bar
        bars.append("text")
            .attr("class", "label")
            //y position of the label is halfway down the bar
            .attr("y", function (d) {
                return y(d.name) + y.rangeBand() / 2 + 4;
            })
            //x position is 3 pixels to the right of the bar
            .attr("x", function (d) {
                return x(d.value) + 3;
            })
            .text(function (d) {
                return d.value;
            });

    </script>

</body>

</html>

## thumbnail.png

      
        

                
      Raw
    
  

        
        
          
            
          
          
            
              thumbnail.png
	<!DOCTYPE html>
	<html>

	<head>
	<meta charset='utf-8' />
	<title>Simple Bar chart</title>
	<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
	<style>
	body {
	font-family: "Arial", sans-serif;
	}

	.bar {
	fill: #5f89ad;
	}

	.axis {
	font-size: 13px;
	}

	.axis path,
	.axis line {
	fill: none;
	display: none;
	}

	.label {
	font-size: 13px;
	}
	</style>

	</head>

	<body>

	<div id="graphic"></div>

	<script>
	var data = [{
	"name": "Apples",
	"value": 20,
	},
	{
	"name": "Bananas",
	"value": 12,
	},
	{
	"name": "Grapes",
	"value": 19,
	},
	{
	"name": "Lemons",
	"value": 5,
	},
	{
	"name": "Limes",
	"value": 16,
	},
	{
	"name": "Oranges",
	"value": 26,
	},
	{
	"name": "Pears",
	"value": 30,
	}];

	//sort bars based on value
	data = data.sort(function (a, b) {
	return d3.ascending(a.value, b.value);
	})

	//set up svg using margin conventions - we'll need plenty of room on the left for labels
	var margin = {
	top: 15,
	right: 25,
	bottom: 15,
	left: 60
	};

	var width = 960 - margin.left - margin.right,
	height = 500 - margin.top - margin.bottom;

	var svg = d3.select("#graphic").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 + ")");

	var x = d3.scale.linear()
	.range([0, width])
	.domain([0, d3.max(data, function (d) {
	return d.value;
	})]);

	var y = d3.scale.ordinal()
	.rangeRoundBands([height, 0], .1)
	.domain(data.map(function (d) {
	return d.name;
	}));

	//make y axis to show bar names
	var yAxis = d3.svg.axis()
	.scale(y)
	//no tick marks
	.tickSize(0)
	.orient("left");

	var gy = svg.append("g")
	.attr("class", "y axis")
	.call(yAxis)

	var bars = svg.selectAll(".bar")
	.data(data)
	.enter()
	.append("g")

	//append rects
	bars.append("rect")
	.attr("class", "bar")
	.attr("y", function (d) {
	return y(d.name);
	})
	.attr("height", y.rangeBand())
	.attr("x", 0)
	.attr("width", function (d) {
	return x(d.value);
	});

	//add a value label to the right of each bar
	bars.append("text")
	.attr("class", "label")
	//y position of the label is halfway down the bar
	.attr("y", function (d) {
	return y(d.name) + y.rangeBand() / 2 + 4;
	})
	//x position is 3 pixels to the right of the bar
	.attr("x", function (d) {
	return x(d.value) + 3;
	})
	.text(function (d) {
	return d.value;
	});

	</script>

	</body>

	</html>