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Last active February 20, 2019 14:52
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Stacked Bar Chart
Raw
README.md

Simple Stacked Bar Chart

Raw
d3-tip.css
.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;
}
Raw
index.html
<!DOCTYPE>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Stacked Bar Chart</title>
<!-- JavaScript Libraries //-->
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3-tip/0.7.1/d3-tip.min.js"></script>
<!-- CSS Style //-->
<link href="style.css" rel="stylesheet" type="text/css">
<link href="d3-tip.css" rel="stylesheet" type="text/css">
<script type="text/javascript" src="main.js"></script>
</head>
<body>
<div id="chart"></div>
</body>
<script>
var inputData = [];
for(var i =0; i<10; i++){
var date = Date.now() + i*24*60*60*1000;
inputData.push( {
label : date,
'Category 1': Math.random()*50,
'Category 2': Math.random()*50,
'Category 3': Math.random()*50
});
}
var colorScheme = ["#E57373","#BA68C8","#7986CB","#A1887F","#90A4AE","#AED581","#9575CD","#FF8A65","#4DB6AC","#FFF176","#64B5F6","#00E676"];
renderStackedBarChart(inputData,"#chart",colorScheme);
</script>
</html>
Raw
main.js
function renderStackedBarChart(inputData, dom_element_to_append_to, colorScheme) {
data = inputData
var margin = {top: 20, right: 20, bottom: 30, left: 40},
width = 900 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom,
height2 = height*0.75;
var x = d3.scale.ordinal()
.rangeRoundBands([0, width], .1);
var y = d3.scale.linear()
.rangeRound([height2, 0]);
var color = d3.scale.ordinal()
.range(colorScheme);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom")
.tickFormat(function(d) {
return (new Date(+d) + "").substring(3,16);
});
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.tickFormat(d3.format(".2s"));
var tip = d3.tip()
.attr('class', 'd3-tip')
.offset([-10, 0])
.html(function(d) {
return "<div><strong> " +d.name + ":</strong></div><div> <span style='color:white'>" + (d.y1 - d.y0).toFixed(0) + "</span></div>";
})
var svg = d3.select(dom_element_to_append_to).append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
var main = svg.append("g")
.attr("height", height2)
.attr("transform", "translate(" + margin.left + "," + (height*0.20) + ")");
var active_link = "0";
var legendClicked;
var legendClassArray = [];
var y_orig;
svg.call(tip);
color.domain(d3.keys(data[0]).filter(function(key) { return key !== "label"; }));
data.forEach(function(d) {
var mylabel = d.label;
var y0 = 0;
d.params = color.domain().map(function(name) { return {mylabel:mylabel, name: name, y0: y0, y1: y0 += +d[name]}; });
d.total = d.params[d.params.length - 1].y1;
});
data.sort(function(a, b) { return b.total - a.total; });
x.domain(data.map(function(d) { return (d.label); }));
y.domain([0, d3.max(data, function(d) { return d.total; })]);
main.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height2 + ")")
.call(xAxis);
main.append("g")
.attr("class", "y axis")
.call(yAxis)
.append("text")
.attr("transform", "rotate(-90)")
.attr("y", 6)
.attr("dy", ".71em")
.style("text-anchor", "end");
var state = main.selectAll(".state")
.data(data)
.enter().append("g")
.attr("class", "g")
.attr("transform", function(d) { return "translate(" + "0" + ",0)"; });
state.selectAll("rect")
.data(function(d) {
return d.params;
})
.enter().append("rect")
.attr("width", x.rangeBand())
.attr("y", function(d) { return y(d.y1); })
.attr("x",function(d) {
return x(d.mylabel)
})
.attr("height", function(d) { return y(d.y0) - y(d.y1); })
.attr("class", function(d) {
var classLabel = d.name.replace(/\s/g, '');
return "class" + classLabel;
})
.style("fill", function(d) { return color(d.name); });
state.selectAll("rect")
.on("mouseover", function(d){
var delta = d.y1 - d.y0;
var xPos = parseFloat(d3.select(this).attr("x"));
var yPos = parseFloat(d3.select(this).attr("y"));
var height = parseFloat(d3.select(this).attr("height"))
d3.select(this).attr("stroke","blue").attr("stroke-width",0.8);
tip.show(d);
/*main.append("text")
.attr("x",xPos)
.attr("y",yPos +height/2)
.attr("class","tooltip")
.text(d.name +": "+ delta.toFixed(0)); */
})
.on("mouseout",function(){
tip.hide();
/*main.select(".tooltip").remove();*/
d3.select(this).attr("stroke","pink").attr("stroke-width",0.2);
})
var legend = svg.selectAll(".legend")
.data(color.domain().slice().reverse())
.enter().append("g")
.attr("class", function (d) {
legendClassArray.push(d.replace(/\s/g, ''));
return "legend";
})
.attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; });
legendClassArray = legendClassArray.reverse();
legend.append("rect")
.attr("x", width - 18)
.attr("width", 18)
.attr("height", 18)
.style("fill", color)
.attr("id", function (d, i) {
return "id" + d.replace(/\s/g, '');
})
.on("mouseover",function(){
if (active_link === "0") d3.select(this).style("cursor", "pointer");
else {
if (active_link.split("class").pop() === this.id.split("id").pop()) {
d3.select(this).style("cursor", "pointer");
} else d3.select(this).style("cursor", "auto");
}
})
.on("click",function(d){
if (active_link === "0") {
d3.select(this)
.style("stroke", "black")
.style("stroke-width", 2);
active_link = this.id.split("id").pop();
plotSingle(this);
for (i = 0; i < legendClassArray.length; i++) {
if (legendClassArray[i] != active_link) {
d3.select("#id" + legendClassArray[i])
.style("opacity", 0.5);
}
}
}
else {
if (active_link === this.id.split("id").pop()) {
d3.select(this)
.style("stroke", "none");
active_link = "0";
for (i = 0; i < legendClassArray.length; i++) {
d3.select("#id" + legendClassArray[i])
.style("opacity", 1);
}
restorePlot(d);
}
}
});
legend.append("text")
.attr("x", width - 24)
.attr("y", 9)
.attr("dy", ".35em")
.style("text-anchor", "end")
.text(function(d) { return d; });
function restorePlot(d) {
state.selectAll("rect").forEach(function (d, i) {
d3.select(d[idx])
.transition()
.duration(1000)
.attr("y", y_orig[i]);
})
for (i = 0; i < legendClassArray.length; i++) {
if (legendClassArray[i] != class_keep) {
d3.selectAll(".class" + legendClassArray[i])
.transition()
.duration(1000)
.delay(750)
.style("opacity", 1);
}
}
}
function plotSingle(d) {
class_keep = d.id.split("id").pop();
idx = legendClassArray.indexOf(class_keep);
for (i = 0; i < legendClassArray.length; i++) {
if (legendClassArray[i] != class_keep) {
d3.selectAll(".class" + legendClassArray[i])
.transition()
.duration(1000)
.style("opacity", 0);
}
}
y_orig = [];
state.selectAll("rect").forEach(function (d, i) {
h_keep = d3.select(d[idx]).attr("height");
y_keep = d3.select(d[idx]).attr("y");
y_orig.push(y_keep);
h_base = d3.select(d[0]).attr("height");
y_base = d3.select(d[0]).attr("y");
h_shift = h_keep - h_base;
y_new = y_base - h_shift;
d3.select(d[idx])
.transition()
.ease("bounce")
.duration(1000)
.delay(750)
.attr("y", y_new);
})
}
};
Raw
style.css
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.x.axis path {
display: none;
}
.tooltip{
text-anchor: middle;
font-family: sans-serif;
font-size: 20px;
font-weight: bold;
fill:black;
}
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