|
<!DOCTYPE html> |
|
<style> |
|
|
|
.axis .domain { |
|
display: none; |
|
} |
|
|
|
</style> |
|
<svg width="960" height="500"></svg> |
|
<script src="https://d3js.org/d3.v4.min.js"></script> |
|
<script> |
|
|
|
var svg = d3.select("svg"), |
|
margin = {top: 20, right: 20, bottom: 30, left: 40}, |
|
width = +svg.attr("width") - margin.left - margin.right, |
|
height = +svg.attr("height") - margin.top - margin.bottom, |
|
g = svg.append("g").attr("transform", "translate(" + margin.left + "," + margin.top + ")"); |
|
|
|
var x0 = d3.scaleBand() |
|
.rangeRound([0, width]) |
|
.paddingInner(0.1); |
|
|
|
var x1 = d3.scaleBand() |
|
.padding(0.05); |
|
|
|
var y = d3.scaleLinear() |
|
.rangeRound([height, 0]); |
|
|
|
var z = d3.scaleOrdinal() |
|
.range(["#93c2a1", "#9877c4", "#906e70", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]); |
|
|
|
d3.csv("Table_2_new.csv", function(d, i, columns) { |
|
for (var i = 1, n = columns.length; i < n; ++i) d[columns[i]] = +d[columns[i]]; |
|
return d; |
|
}, function(error, data) { |
|
if (error) throw error; |
|
|
|
var keys = data.columns.slice(2,5); |
|
|
|
x0.domain(data.map(function(d) { return d.Highest_level_completed |
|
; })); |
|
x1.domain(keys).rangeRound([0, x0.bandwidth()]); |
|
y.domain([0, d3.max(data, function(d) { return d3.max(keys, function(key) { return d[key]; }); })]).nice(); |
|
|
|
g.append("g") |
|
.selectAll("g") |
|
.data(data) |
|
.enter().append("g") |
|
.attr("transform", function(d) { return "translate(" + x0(d.Highest_level_completed) + ",0)"; }) |
|
.selectAll("rect") |
|
.data(function(d) { return keys.map(function(key) { return {key: key, value: d[key]}; }); }) |
|
.enter().append("rect") |
|
.attr("x", function(d) { return x1(d.key); }) |
|
.attr("y", function(d) { return y(d.value); }) |
|
.attr("width", x1.bandwidth()) |
|
.attr("height", function(d) { return height - y(d.value); }) |
|
.attr("fill", function(d) { return z(d.key); }); |
|
|
|
g.append("g") |
|
.style("font-size","10px") |
|
.attr("class", "axis") |
|
.attr("transform", "translate(0," + height + ")") |
|
.call(d3.axisBottom(x0)); |
|
|
|
g.append("g") |
|
.attr("class", "axis") |
|
.call(d3.axisLeft(y).ticks(null, "s")) |
|
.style("font-size","20px") |
|
.append("text") |
|
.attr("x", 20) |
|
.attr("y", y(y.ticks().pop()) + 0.5) |
|
.attr("dy", "0.32em") |
|
.attr("fill", "#000") |
|
.attr("font-weight", "bold") |
|
.attr("text-anchor", "start") |
|
|
|
|
|
var legend = g.append("g") |
|
.style("font-size","20px") |
|
.attr("font-family", "sans-serif") |
|
.attr("font-size", 15) |
|
.attr("text-anchor", "end") |
|
.selectAll("g") |
|
.data(keys.slice().reverse()) |
|
.enter().append("g") |
|
.attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; }); |
|
|
|
legend.append("rect") |
|
.attr("x", 160) |
|
.attr("width", 19) |
|
.attr("height", 19) |
|
.attr("fill", z); |
|
|
|
legend.append("text") |
|
.attr("x", 155) |
|
.attr("y", 9.5) |
|
.attr("dy", "0.32em") |
|
.text(function(d) { return d; }); |
|
}); |
|
|
|
// code for saving the image to a file |
|
|
|
|
|
var doctype = '<?xml version="1.0" standalone="no"?>' |
|
+ '<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">'; |
|
|
|
|
|
// serialize our SVG XML to a string. |
|
var source = (new XMLSerializer()).serializeToString(d3.select('svg').node()); |
|
|
|
// create a file blob of our SVG. |
|
var blob = new Blob([ doctype + source], { type: 'image/svg+xml;charset=utf-8' }); |
|
|
|
var url = window.URL.createObjectURL(blob); |
|
|
|
// Put the svg into an image tag so that the Canvas element can read it in. |
|
var img = d3.select('body').append('img') |
|
.attr('width', 100) |
|
.attr('height', 100) |
|
.node(); |
|
|
|
|
|
img.onload = function(){ |
|
// Now that the image has loaded, put the image into a canvas element. |
|
var canvas = d3.select('body').append('canvas').node(); |
|
canvas.width = 100; |
|
canvas.height = 100; |
|
var ctx = canvas.getContext('2d'); |
|
ctx.drawImage(img, 0, 0); |
|
var canvasUrl = canvas.toDataURL("image/png"); |
|
var img2 = d3.select('body').append('img') |
|
.attr('width', 100) |
|
.attr('height', 100) |
|
.node(); |
|
// this is now the base64 encoded version of our PNG! you could optionally |
|
// redirect the user to download the PNG by sending them to the url with |
|
// `window.location.href= canvasUrl`. |
|
img2.src = canvasUrl; |
|
} |
|
// start loading the image. |
|
img.src = url; |
|
|
|
|
|
</script> |
