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degrees.html
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<!DOCTYPE html>
<meta charset="utf-8">
<style>
body {
font: 10px sans-serif;
}
.axis path, .axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.line {
fill: none;
stroke: steelblue;
stroke-width: 1.5px;
}
.y.axis {
display: none;
}
.doctor text {
font-size: 8px;
}
.title {
font-size: 16px;
}
.degree_mbchb {
fill: red;
}
.degree_fcs {
fill: blue;
}
.degree_vasc {
fill: pink;
}
.degree_other {
fill: black;
}
div.tooltip {
position: absolute;
text-align: left;
width: 120px;
height: 58px;
padding: 2px;
font: 12px sans-serif;
background: lightsteelblue;
border: 1px;
border-color:#222;
border-radius: 2px;
pointer-events: none;
}
</style>
<body>
<script src="underscore-min.js"></script>
<script src="d3.v3.min.js"></script>
<script>
var margin = {top: 50, right: 140, bottom: 30, left: 50},
width = 960 - margin.left - margin.right,
height = 700 - margin.top - margin.bottom;
var parseDate = d3.time.format("%Y-%m-%dT00:00:00").parse
var formatTime = d3.time.format("%e %B, %Y");
var x = d3.time.scale()
.range([0, width]);
var y = d3.scale.linear()
.range([height, 0]);
var color = d3.scale.category10();
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left");
var line = d3.svg.line()
.interpolate("basis")
.x(function(d) { return x(d.date); })
.y(function(d) { return y(d.idx); });
// Define the div for the tooltip
var div = d3.select("body").append("div")
.attr("class", "tooltip")
.style("opacity", 0);
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 + ")");
svg.append("text")
.attr("class", "title")
.attr("x", width / 2)
.style("text-anchor", "middle")
.attr("y", -15)
.text("Timeline of degrees earned by vascular surgeons")
d3.json("degrees.json", function(error, data) {
if (error) throw error;
//color.domain(d3.keys(data[0]).filter(function(key) { return key !== "date"; }));
data.forEach(function(doctor) {
doctor.degrees.forEach(function(degree) {
degree.date = parseDate(degree.date);
})
});
var dates = data.map(function(d) {
return d.degrees.map(function(d2) {
return d2.date;
})
})
dates = _.flatten(dates)
x.domain(d3.extent(dates));
y.domain([0, data.length])
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
svg.append("g")
.attr("class", "y axis")
.call(yAxis)
.append("text")
.attr("transform", "rotate(-90)")
.attr("x", -height/2)
.attr("y", -10)
.style("text-anchor", "middle")
.text("Degrees obtained by vascular surgeons");
var doctors = data.map(function(degrees, idx) {
var name = degrees.name;
return {
name: name,
values: degrees.degrees.map(function(d) {
return {
date: d.date,
idx: idx + 1,
degree: d.degree
};
})
};
});
var doctor = svg.selectAll(".doctor")
.data(doctors)
.enter().append("g")
.attr("class", "doctor");
doctor.append("path")
.attr("class", "line")
.attr("d", function(d) {
return line(d.values);
})
doctor.append("g")
.attr("class", "dot")
.each(function(d) {
d3.select(this).selectAll("circle")
.data(d.values)
.enter()
.append("circle")
.attr("cx", function(d2) { return x(d2.date); })
.attr("cy", function(d2) { return y(d2.idx); })
.attr("r", 3)
.on("mouseover", function(d2) {
div.transition()
.duration(200)
.style("opacity", .9);
div.html("<strong>Date:</strong> " + formatTime(d2.date) + "<br/><strong>Degree:</strong> " + d2.degree)
.style("left", (d3.event.pageX) + "px")
.style("top", (d3.event.pageY - 28) + "px");
})
.on("mouseout", function(d) {
div.transition()
.duration(500)
.style("opacity", 0);
})
.attr("class", function(d2) {
if (!d2.degree.indexOf("MB ChB"))
return "degree_mbchb";
else if (!d2.degree.indexOf("FCS (SA)"))
return "degree_fcs";
else if (!d2.degree.indexOf("Cert Vascular Surgery (SA)"))
return "degree_vasc";
return "degree_other"
})
})
doctor.append("text")
.attr("class", "name")
.attr("x", function(d) { var arr = d.values; return x(arr[arr.length - 1].date); })
.attr("y", function(d) { var arr = d.values; return y(arr[0].idx); })
.attr("dx", "0.8em")
.attr("dy", "0.3em")
.style("text-anchor", "start")
.text(function(d) { return d.name; });
var legend_arr = [{
"name" : "MB ChB",
"class" : "degree_mbchb"
},
{
"name" : "FCS (SA)",
"class" : "degree_fcs"
},
{
"name" : "Cert Vascular Surgery (SA)",
"class" : "degree_vasc"
},
{
"name" : "Other",
"class" : "degree_other"
}]
var legend = svg.append("g")
.attr("class", "legend")
.attr("transform", "translate(" + (50) + ", " + (50) + ")")
legend
.selectAll("circle")
.data(legend_arr)
.enter()
.append("circle")
.attr("class", function(el) { return el.class; })
.attr("cx", 0)
.attr("cy", 0)
.attr("r", 5)
.attr("transform", function(d, idx) {
return "translate(0, " + (idx * 15) + ")"
})
legend
.selectAll("text")
.data(legend_arr)
.enter()
.append("text")
.style("text-anchor", "start")
.attr("transform", function(d, idx) {
return "translate(10, " + (idx * 15) + ")"
})
.attr("dy", "0.4em")
.text(function(d) {
return d.name;
})
})
</script>