|
<!DOCTYPE html> |
|
<html> |
|
<head> |
|
<meta charset="utf-8"> |
|
<title>D3 Example</title> |
|
<script src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> |
|
<script src="//cdnjs.cloudflare.com/ajax/libs/d3-legend/1.1.0/d3-legend.js"></script> |
|
<script src="//cdnjs.cloudflare.com/ajax/libs/d3-tip/0.6.3/d3-tip.min.js"></script> |
|
<link href='https://fonts.googleapis.com/css?family=Open+Sans' rel='stylesheet' type='text/css'> |
|
<style> |
|
|
|
.axis text { |
|
font-family: 'Open Sans', sans-serif; |
|
font-size: 19pt; |
|
} |
|
.axis .label { |
|
font-size: 20pt; |
|
} |
|
|
|
.axis path, .axis line { |
|
fill: none; |
|
stroke: #000; |
|
shape-rendering: crispEdges; |
|
} |
|
|
|
.color-legend text { |
|
font-family: 'Open Sans', sans-serif; |
|
font-size: 19pt; |
|
} |
|
|
|
.d3-tip { |
|
font-family: 'Open Sans', sans-serif; |
|
font-size: 19pt; |
|
line-height: 1; |
|
padding: 7px; |
|
background: black; |
|
color: lightgray; |
|
border-radius: 20px; |
|
} |
|
|
|
</style> |
|
</head> |
|
<body> |
|
<script> |
|
var outerWidth = 960; |
|
var outerHeight = 500; |
|
var margin = { left: 130, top: 44, right: 30, bottom: 47 }; |
|
var barPadding = 0.2; |
|
|
|
var xColumn = "year"; |
|
var yColumn = "expenses"; |
|
var colorColumn = "department"; |
|
var layerColumn = colorColumn; |
|
|
|
var hoveredColorValue; |
|
var hoveredStrokeColor = "black"; |
|
|
|
var innerWidth = outerWidth - margin.left - margin.right; |
|
var innerHeight = outerHeight - margin.top - margin.bottom; |
|
|
|
var svg = d3.select("body").append("svg") |
|
.attr("width", outerWidth) |
|
.attr("height", outerHeight); |
|
var g = svg.append("g") |
|
.attr("transform", "translate(" + margin.left + "," + margin.top + ")"); |
|
|
|
// This is the layer where the bars are drawn. |
|
var baseBarLayer = g.append("g"); |
|
|
|
// This layer contains a semi-transparent overlay |
|
// that fades out the base bars. |
|
var overlayRect = g.append("g") |
|
.append("rect") |
|
.attr("width", innerWidth) |
|
.attr("height", innerHeight) |
|
.style("pointer-events", "none"); |
|
|
|
// This contains the subset of bars rendered on top |
|
// when you hover over the entries in the color legend. |
|
var foregroundBarLayer = g.append("g"); |
|
|
|
var xAxisG = g.append("g") |
|
.attr("class", "x axis") |
|
.attr("transform", "translate(0," + innerHeight + ")"); |
|
var yAxisG = g.append("g") |
|
.attr("class", "y axis"); |
|
var colorLegendG = g.append("g") |
|
.attr("class", "color-legend") |
|
.attr("transform", "translate(596, 0)"); |
|
|
|
var xScale = d3.scale.ordinal().rangeBands([0, innerWidth], barPadding); |
|
var yScale = d3.scale.linear().range([innerHeight, 0]); |
|
var colorScale = d3.scale.category10(); |
|
|
|
var tipNumberFormat = d3.format(","); |
|
var tip = d3.tip() |
|
.attr("class", "d3-tip") |
|
.offset([-10, 0]) |
|
.html(function(d) { |
|
return [ |
|
d[colorColumn], |
|
" in ", |
|
d[xColumn], |
|
": ", |
|
tipNumberFormat(d[yColumn]) |
|
].join(""); |
|
}); |
|
g.call(tip); |
|
|
|
// Use a modified SI formatter that uses "B" for Billion. |
|
var siFormat = d3.format("s"); |
|
var customTickFormat = function (d){ |
|
return siFormat(d).replace("G", "B"); |
|
}; |
|
|
|
var xAxis = d3.svg.axis().scale(xScale).orient("bottom") |
|
.outerTickSize(0); |
|
var yAxis = d3.svg.axis().scale(yScale).orient("left") |
|
.ticks(5) |
|
.tickFormat(customTickFormat) |
|
.outerTickSize(0); |
|
|
|
var colorLegend = d3.legend.color() |
|
.scale(colorScale) |
|
.shapePadding(6.24) |
|
.shapeWidth(25) |
|
.shapeHeight(25) |
|
.labelOffset(5); |
|
|
|
function render(data){ |
|
|
|
var nested = d3.nest() |
|
.key(function (d){ return d[layerColumn]; }) |
|
.entries(data); |
|
|
|
var stack = d3.layout.stack() |
|
.y(function (d){ return d[yColumn]; }) |
|
.values(function (d){ return d.values; }); |
|
|
|
var layers = stack(nested.reverse()).reverse(); |
|
|
|
xScale.domain(layers[0].values.map(function (d){ |
|
return d[xColumn]; |
|
})); |
|
|
|
yScale.domain([ |
|
0, |
|
d3.max(layers, function (layer){ |
|
return d3.max(layer.values, function (d){ |
|
return d.y0 + d.y; |
|
}); |
|
}) |
|
]); |
|
|
|
colorScale.domain(layers.map(function (layer){ |
|
return layer.key; |
|
})); |
|
|
|
xAxisG.call(xAxis); |
|
yAxisG.call(yAxis); |
|
|
|
renderBars(baseBarLayer, layers); |
|
|
|
if(hoveredColorValue){ |
|
setOverlayTransparency(0.7); |
|
renderBars(foregroundBarLayer, layers.filter(function (layer){ |
|
return layer.key === hoveredColorValue; |
|
})); |
|
} else { |
|
setOverlayTransparency(0.0); |
|
renderBars(foregroundBarLayer, []); |
|
} |
|
|
|
colorLegendG.call(colorLegend); |
|
|
|
// Move the text down a bit. |
|
colorLegendG.selectAll("text").attr("y", 4); |
|
|
|
listenForHover(colorLegendG.selectAll("rect"), data); |
|
listenForHover(colorLegendG.selectAll("text"), data); |
|
} |
|
|
|
function setOverlayTransparency(alpha){ |
|
overlayRect |
|
.transition().duration(400) |
|
.attr("fill", "rgba(255, 255, 255, " + alpha + ")"); |
|
} |
|
|
|
function renderBars(g, layers){ |
|
var layerGs = g.selectAll(".layer").data(layers); |
|
layerGs.enter().append("g").attr("class", "layer"); |
|
layerGs.exit().remove(); |
|
layerGs.style("fill", function (d){ |
|
return colorScale(d.key); |
|
}); |
|
|
|
var bars = layerGs.selectAll("rect").data(function (d){ |
|
return d.values; |
|
}); |
|
bars.enter().append("rect") |
|
.on("mouseover", tip.show) |
|
.on("mouseout", tip.hide); |
|
bars.exit().remove(); |
|
bars |
|
.attr("x", function (d){ return xScale(d[xColumn]); }) |
|
.attr("y", function (d){ return yScale(d.y0 + d.y); }) |
|
.attr("width", xScale.rangeBand()) |
|
.attr("height", function (d){ return innerHeight - yScale(d.y); }); |
|
} |
|
|
|
function listenForHover(selection, data){ |
|
selection |
|
.on("mouseover", function (d){ |
|
hoveredColorValue = d; |
|
render(data); |
|
}) |
|
.on("mouseout", function (d){ |
|
hoveredColorValue = null; |
|
render(data); |
|
}) |
|
.style("cursor", "pointer"); |
|
} |
|
|
|
function type(d){ |
|
d.population = +d.population; |
|
return d; |
|
} |
|
|
|
d3.csv("religionByCountryTop5.csv", type, render); |
|
|
|
</script> |
|
</body> |
|
</html> |
