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@benrudolph
Forked from caged/README.md
Last active January 14, 2016 20:47
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Using d3-tip to add tooltips to a d3 bar chart
author count
benrudolph 255
biyeun 56
calellowitz 4
ctsims 2
czue 572
dannyroberts 132
dmyung 2
emord 12
esoergel 68
gcapalbo 2
kaapstorm 29
millerdev 15
nickpell 108
NoahCarnahan 4
omiltoro 1
orangejenny 5
proteusvacuum 67
snopoke 216
sravfeyn 5
TylerSheffels 1
wpride 3
<!DOCTYPE html>
<meta charset="utf-8">
<style>
body {
font: 10px sans-serif;
width: 680px;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.bar {
fill: orange;
}
.bar:hover {
fill: orangered ;
}
.x.axis path {
display: none;
}
.d3-tip {
line-height: 1;
font-weight: bold;
padding: 12px;
background: rgba(0, 0, 0, 0.8);
color: #fff;
border-radius: 2px;
}
/* Creates a small triangle extender for the tooltip */
.d3-tip:after {
box-sizing: border-box;
display: inline;
font-size: 10px;
width: 100%;
line-height: 1;
color: rgba(0, 0, 0, 0.8);
content: "\25BC";
position: absolute;
text-align: center;
}
/* Style northward tooltips differently */
.d3-tip.n:after {
margin: -1px 0 0 0;
top: 100%;
left: 0;
}
</style>
<body>
<h1 style="text-align:center">Emoji Count by Author</h1>
<figure></figure>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="http://labratrevenge.com/d3-tip/javascripts/d3.tip.v0.6.3.js"></script>
<script>
var margin = {top: 40, right: 20, bottom: 60, left: 40},
width = 600 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var formatNumber = d3.format(".0d");
var x = d3.scale.ordinal()
.rangeRoundBands([0, width], .1, .4);
var y = d3.scale.linear()
.range([height, 0]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.tickFormat(formatNumber);
var tip = d3.tip()
.attr('class', 'd3-tip')
.offset([-10, 0])
.html(function(d) {
return "<strong>Emoji Count:</strong> <span style='color:red'>" + d.count + "</span><br />" +
"<strong>Author:</strong> <span style='color:red'>" + d.author + "</span><br />";
})
var svg = d3.select("figure").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 + ")");
svg.call(tip);
d3.tsv("data.tsv", type, function(error, data) {
data = data.sort(function(a, b) {
return b.count - a.count
});
x.domain(data.map(function(d) { return d.author; }));
y.domain([0, d3.max(data, function(d) { return d.count; })]);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis)
.selectAll("text")
.attr("y", 8)
.attr("x", 0)
.attr("dy", ".35em")
.attr("transform", "rotate(40)")
.style("text-anchor", "start");
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("Emoji Count");
svg.selectAll(".bar")
.data(data)
.enter().append("rect")
.attr("class", "bar")
.attr("x", function(d) { return x(d.author); })
.attr("width", x.rangeBand())
.attr("y", function(d) { return y(d.count); })
.attr("height", function(d) { return height - y(d.count); })
.on('mouseover', tip.show)
.on('mouseout', tip.hide)
});
function type(d) {
d.count = +d.count;
return d;
}
</script>
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