var data = [
{
Category: "cat1",
type1: 300,
type2: 450,
type3: 120
},
{
Category: "cat2",
type1: 400,
type2: 100,
type3: 200
},
{
Category: "cat3",
type1: 400,
type2: 100,
type3: 200
},
{
Category: "cat4",
type1: 400,
type2: 100,
type3: 200
}
];
var margin = { top: 20, right: 20, bottom: 30, left: 40 },
width = 500 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var barWidth = 40;
var x0 = d3.scaleBand().range([0, width]);
var x1 = d3.scaleBand();
var y = d3.scaleLinear().range([height, 0]);
var xAxis = d3.axisBottom(x0);
var yAxis = d3.axisLeft(y).tickFormat(d3.format(".2s"));
var color = d3.scaleOrdinal().range(["#98abc5", "#8a89a6", "#7b6888"]);
var svg = d3
.select("body")
.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 yBegin;
var innerColumns = {
column1: ["type1", "type2"],
column2: ["type3"]
};
var columnHeaders = d3.keys(data[0]).filter(function(key) {
return key !== "Category";
});
color.domain(
d3.keys(data[0]).filter(function(key) {
return key !== "Category";
})
);
var groupData = data.forEach(function(d) {
var yColumn = new Array();
d.columnDetails = columnHeaders.map(function(name) {
for (ic in innerColumns) {
if (innerColumns[ic].indexOf(name) >= 0) {
if (!yColumn[ic]) {
yColumn[ic] = 0;
}
yBegin = yColumn[ic];
yColumn[ic] += +d[name];
return {
name: name,
column: ic,
yBegin: yBegin,
yEnd: +d[name] + yBegin
};
}
}
});
d.total = d3.max(d.columnDetails, function(d) {
return d.yEnd;
});
});
//console.log(data);
x0.domain(
data.map(function(d) {
return d.Category;
})
);
x1.domain(d3.keys(innerColumns)).range([0, x0.bandwidth()]);
y.domain([
0,
1.15 *
d3.max(data, function(d) {
return d.total;
})
]);
svg
.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
svg
.append("g")
.attr("class", "y axis")
.call(yAxis);
var stackedbar = svg
.selectAll(".stackedbar")
.data(data)
.enter()
.append("g")
.attr("class", "g")
.attr("transform", function(d) {
return "translate(" + x0(d.Category) + ",0)";
});
stackedbar
.selectAll("rect")
.data(function(d) {
return d.columnDetails;
})
.enter()
.append("rect")
.attr("width", barWidth)
.attr("x", function(d) {
return x1(d.column) + (x1.bandwidth() - barWidth) / 2;
})
.attr("y", function(d) {
return y(d.yEnd);
})
.attr("height", function(d) {
return y(d.yBegin) - y(d.yEnd);
})
.style("fill", function(d) {
return color(d.name);
});
body {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.bar {
fill: steelblue;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.6.0/d3.min.js"></script>