<html>
<head>
<title>D3 Bar Chart</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="main.css">
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
</head>
<body>
<script>
var N = 10;
var w = 800;
var h = 450;
var margin = {
top: 20,
bottom: 100,
left: 80,
right: 20
};
var width = w - margin.left - margin.right;
var height = h - margin.top - margin.bottom;
var dataset = [
{key: "Glazed", value: 132},
{key: "Jelly", value: 71},
{key: "Holes", value: 337},
{key: "Sprinkles", value: 93},
{key: "Crumb", value: 78},
{key: "Chocolate", value: 43},
{key: "Coconut", value: 20},
{key: "Cream", value: 16},
{key: "Cruller", value: 30},
{key: "Éclair", value: 8},
{key: "Fritter", value: 17},
{key: "Bearclaw", value: 21}
];
var yScale = d3.scale.linear()
.domain([0, d3.max(dataset, function (d) {
return d.value
})])
.range([height, 0]);
var xScale = d3.scale.ordinal()
.domain(dataset.map(function (d) {
return d.key
}))
.rangeBands([0, width]);
var linearColorScale = d3.scale.linear()
.domain([0, dataset.length])
.range(["#572500", "#F68026"]);
var ordinalColorScale = d3.scale.category20();
var xAxis = d3.svg.axis()
.scale(xScale)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(yScale)
.orient("left");
var yGridLines = d3.svg.axis()
.scale(yScale)
.tickSize(-width, 0, 0)
.tickFormat("")
.orient("left");
var chartGroup = d3.select("body")
.append("svg")
.attr("id", "chart")
.attr("height", h)
.attr("width", w)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
var controls = d3.select("body")
.append("div")
.attr("id", "control");
var sort_btn = controls.append("button")
.attr("state", 0)
.html("Sort data: Ascending");
function drawAxis(params) {
if (params.initialize === true) {
//Draw Gridlines
this.append("g")
.call(params.gridline)
.classed('gridline', true);
//Draw X Axis
this.append("g")
.classed("x axis", true)
.attr("transform", "translate(" + 0 + " , " + height + ")")
.call(params.axis.x)
.selectAll("text")
.classed("x-axis-label", true)
.style("text-anchor", "end")
.attr("dx", -8)
.attr("dy", 8)
.attr("transform", "translate(0, 0) rotate(-45)");
//Draw Y Axis
this.append("g")
.classed("y axis", true)
.attr("transform", "translate(" + 0 + "," + 0 + ")")
.call(params.axis.y);
//Draw Y Label
this.select(".y.axis")
.append("text")
.attr("x", 0)
.attr("y", 0)
.style("text-anchor", "middle")
.attr("transform", "translate(-50," + height / 2 + ") rotate(-90)")
.text("Units Sold");
//Draw X Label
this.select(".x.axis")
.append("text")
.attr("x", 0)
.attr("y", 0)
.style("text-anchor", "middle")
.attr("transform", "translate(" + width / 2 + ", 80)")
.text("Donut Type");
} else if (params.initialize === false) {
this.selectAll("g.x.axis")
.transition()
.duration(500)
.call(params.axis.x);
this.selectAll(".x-axis-label")
.style("text-anchor", "end")
.attr("dx", -8)
.attr("dy", 8)
.attr("transform", "translate(0, 0) rotate(-45)");
this.selectAll("g.y.axis")
.transition()
.duration(500)
.call(params.axis.y);
}
}
function plot(params) {
yScale.domain([0, d3.max(params.data, function (d) {
return d.value
})]);
xScale.domain(params.data.map(function (d) {
return d.key
}));
drawAxis.call(this, params);
//Enter Phase
this.selectAll(".bar")
.data(params.data)
.enter()
.append("rect")
.classed("bar", true)
.on("mouseover", function (d, i) {
d3.select(this).style("fill", "yellow")
})
.on("mouseout", function (d, i) {
d3.select(this).style("fill", ordinalColorScale(d.key));
});
this.selectAll(".bar-label")
.data(dataset)
.enter()
.append("text")
.classed("bar-label", true);
//Update Phase
this.selectAll(".bar")
.transition()
.duration(500)
.ease("bounce")
.delay(function (d, i) {
return i * 50
})
.attr("x", function (d, i) {
return xScale(d.key)
})
.attr("y", function (d, i) {
return yScale(d.value)
})
.attr("width", function (d, i) {
return xScale.rangeBand()
})
.attr("height", function (d, i) {
return height - yScale(d.value)
})
//.style("fill", function(d, i) {return linearColorScale(i)});
.style("fill", function (d, i) {
return ordinalColorScale(d.key)
});
this.selectAll(".bar-label")
.transition()
.duration(500)
.ease("bounce")
.delay(function (d, i) {
return i * 50
})
.attr("x", function (d, i) {
return xScale(d.key) + xScale.rangeBand() / 2
})
.attr("y", function (d, i) {
return yScale(d.value)
})
.attr("dy", 15)
.text(function (d, i) {
return d.value
})
.style("fill", "black")
.style("text-anchor", "middle");
//Exit Phase
this.selectAll(".bar")
.data(params.data)
.exit()
.remove();
this.selectAll(".bar-label")
.data(params.data)
.exit()
.remove();
}
plot.call(chartGroup, {
data: dataset,
axis: {
x: xAxis,
y: yAxis
},
gridline: yGridLines,
initialize: true
});
sort_btn.on("click", function () {
var self = d3.select(this);
var state = +self.attr("state");
var ascending = function (a, b) {
return a.value - b.value
}
var descending = function (a, b) {
return b.value - a.value
}
var txt = "Sort data: ";
if (state === 0) {
dataset.sort(ascending);
state = 1;
txt += "Descending";
} else if (state === 1) {
dataset.sort(descending);
state = 0;
txt += "Ascending";
}
self.attr("state", state);
self.html(txt);
plot.call(chartGroup, {
data: dataset,
axis: {
x: xAxis,
y: yAxis
},
gridline: yGridLines,
initialize: false
});
});
</script>
</body>
</html>
body, html {
margin:0;
padding:0;
font-family:"Arial", sans-serif;
font-size:0.95em;
text-align:center;
}
#chart {
background-color:#F5F2EB;
border: 1px solid #CCC;
}
.bar {
fill:purple;
shape-rendering:crispEdges;
}
.bar-label {
text-anchor:end;
fill:white;
}
.axis path,
.axis line {
fill:none;
stroke:#000;
shape-rendering:crispEdges;
}
.gridline path,
.gridline line {
fill: none;
stroke: #ccc;
shape-rendering: crispEdges;
}
.trendline {
fill: none;
stroke: #ccc;
stroke-width: 2;
/*stroke-dasharray:10;*/
}
.area {
fill: #ccc;
stroke: #ccc;
opacity: 0.25;
}
.donut {
opacity:0.1;
}
.axis-label {
text-anchor: middle;
}
.chart-header {
text-transform: capitalize;
font-size: 110%;
}
.temperature {
stroke:#95cddf;
stroke-width:2px;
}
.rain {
fill:none;
stroke:#cc627a;
stroke-width:0.5;
}
#cursor {
stroke: black;
}