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Alejandro_Soler-Submission #9

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0086cec
Create wpi-cs-grads.json
asolergayoso May 1, 2019
250160b
Update index.html
asolergayoso May 1, 2019
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297 changes: 292 additions & 5 deletions index.html
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Original file line number Diff line number Diff line change
@@ -1,6 +1,293 @@
<script src="https://d3js.org/d3.v5.min.js"></script>
<!DOCTYPE html>
<head>
<meta charset="utf-8">
<script src="https://d3js.org/d3.v4.min.js"></script>
<link href="https://fonts.googleapis.com/css?family=Open+Sans:400, 700" rel="stylesheet">
<style>
body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }

body {
font-family: 'Open Sans', sans-serif;
}

.title {
font-size: 18px;
font-weight: 700;
}

.slope-line {
stroke: #333;
stroke-width: 2px;
stroke-linecap: round;
}

.slope-label-left, .slope-label-right {
font-size: 16px;
cursor: default;
font-weight: 400;
}

.label-figure {
font-weight: 700;
}

.border-lines {
stroke: #999;
stroke-width: 1px;
}

.voronoi path {
fill: none;
pointer-events: all;
}

circle {
fill: white;
stroke: black;
stroke-width: 2px;
}
</style>
</head>

<script>
console.log(d3); // test if d3 is loaded
// Insert slopegraph here
</script>
<body>
<script>
var margin = {top: 100, right: 275, bottom: 40, left: 275};

var width = 960 - margin.left - margin.right,
height = 760 - margin.top - margin.bottom;

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 y1 = d3.scaleLinear()
.range([height, 0]);

var config = {
xOffset: 0,
yOffset: 0,
width: width,
height: height,
labelPositioning: {
alpha: 0.5,
spacing: 18
},
leftTitle: "2010-2011",
rightTitle: "2011-2012",
labelGroupOffset: 5,
labelKeyOffset: 50,
radius: 6,
// Reduce this to turn on detail-on-hover version
unfocusOpacity: 1
}

function drawSlopeGraph(cfg, data, yScale, leftYAccessor, rightYAccessor) {
var slopeGraph = svg.append("g")
.attr("class", "slope-graph")
.attr("transform", "translate(" + [cfg.xOffset, cfg.yOffset] + ")");
}

d3.json("wpi-cs-grads.json", function(error, data) {
if (error) return error;

// Combine ratios into a single array
var students = [];

data.studs_2010_11.forEach(function(d) {
d.year = "2010-2011";

students.push(d);
});
data.studs_2011_12.forEach(function(d) {
d.year = "2011-2012";
students.push(d);
});


// Nest by student type
var nestedByType = d3.nest()
.key(function(d) { return d.name })
.entries(students);




// Calculate y domain for ratios
y1.domain([23, 108]);

var yScale = y1;

var voronoi = d3.voronoi()
.x(d => d.year == "2010-2011" ? 0 : width)
.y(d => yScale(d.max / d.min))
.extent([[-margin.left, -margin.top], [width + margin.right, height + margin.bottom]]);

var borderLines = svg.append("g")
.attr("class", "border-lines")
borderLines.append("line")
.attr("x1", 0).attr("y1", 0)
.attr("x2", 0).attr("y2", config.height);
borderLines.append("line")
.attr("x1", width).attr("y1", 0)
.attr("x2", width).attr("y2", config.height);

var slopeGroups = svg.append("g")
.selectAll("g")
.data(nestedByType)
.enter().append("g")
.attr("class", "slope-group")
.attr("id", function(d, i) {
d.id = "group" + i;
d.values[0].group = this;
d.values[1].group = this;
});

var slopeLines = slopeGroups.append("line")
.attr("class", "slope-line")
.attr("x1", 0)
.attr("y1", function(d) {
return y1(d.values[0].number);
})
.attr("x2", config.width)
.attr("y2", function(d) {
return y1(d.values[1].number);
});

var leftSlopeCircle = slopeGroups.append("circle")
.attr("r", config.radius)
.attr("cy", d => y1(d.values[0].number));

var leftSlopeLabels = slopeGroups.append("g")
.attr("class", "slope-label-left")
.each(function(d) {
d.xLeftPosition = -config.labelGroupOffset;
d.yLeftPosition = y1(d.values[0].number);
});

leftSlopeLabels.append("text")
.attr("class", "label-figure")
.attr("x", d => d.xLeftPosition)
.attr("y", d => d.yLeftPosition)
.attr("dx", -10)
.attr("dy", 3)
.attr("text-anchor", "end")
.text(d => (d.values[0].number));

leftSlopeLabels.append("text")
.attr("x", d => d.xLeftPosition)
.attr("y", d => d.yLeftPosition)
.attr("dx", -config.labelKeyOffset)
.attr("dy", 3)
.attr("text-anchor", "end")
.text(d => d.key);

var rightSlopeCircle = slopeGroups.append("circle")
.attr("r", config.radius)
.attr("cx", config.width)
.attr("cy", d => y1(d.values[1].number));

var rightSlopeLabels = slopeGroups.append("g")
.attr("class", "slope-label-right")
.each(function(d) {
d.xRightPosition = width + config.labelGroupOffset;
d.yRightPosition = y1(d.values[1].number);
});

rightSlopeLabels.append("text")
.attr("class", "label-figure")
.attr("x", d => d.xRightPosition)
.attr("y", d => d.yRightPosition)
.attr("dx", 10)
.attr("dy", 3)
.attr("text-anchor", "start")
.text(d => (d.values[1].number));

rightSlopeLabels.append("text")
.attr("x", d => d.xRightPosition)
.attr("y", d => d.yRightPosition)
.attr("dx", config.labelKeyOffset)
.attr("dy", 3)
.attr("text-anchor", "start")
.text(d => d.key);

var titles = svg.append("g")
.attr("class", "title");

titles.append("text")
.attr("text-anchor", "end")
.attr("dx", -10)
.attr("dy", -margin.top / 2)
.text(config.leftTitle);

titles.append("text")
.attr("x", config.width)
.attr("dx", 10)
.attr("dy", -margin.top / 2)
.text(config.rightTitle);

relax(leftSlopeLabels, "yLeftPosition");
leftSlopeLabels.selectAll("text")
.attr("y", d => d.yLeftPosition);

relax(rightSlopeLabels, "yRightPosition");
rightSlopeLabels.selectAll("text")
.attr("y", d => d.yRightPosition);

d3.selectAll(".slope-group")
.attr("opacity", config.unfocusOpacity);

var voronoiGroup = svg.append("g")
.attr("class", "voronoi");

voronoiGroup.selectAll("path")
.data(voronoi.polygons(d3.merge(nestedByType.map(d => d.values))))
.enter().append("path")
.attr("d", function(d) { return d ? "M" + d.join("L") + "Z" : null; })
.on("mouseover", mouseover)
.on("mouseout", mouseout);
});

function mouseover(d) {
d3.select(d.data.group).attr("opacity", 1);
}

function mouseout(d) {
d3.selectAll(".slope-group")
.attr("opacity", config.unfocusOpacity);
}

// Function to reposition an array selection of labels (in the y-axis)
function relax(labels, position) {
again = false;
labels.each(function (d, i) {
a = this;
da = d3.select(a).datum();
y1 = da[position];
labels.each(function (d, j) {
b = this;
if (a == b) return;
db = d3.select(b).datum();
y2 = db[position];
deltaY = y1 - y2;

if (Math.abs(deltaY) > config.labelPositioning.spacing) return;

again = true;
sign = deltaY > 0 ? 1 : -1;
adjust = sign * config.labelPositioning.alpha;
da[position] = +y1 + adjust;
db[position] = +y2 - adjust;

if (again) {
relax(labels, position);
}
})
})
}


</script>
</body>
57 changes: 57 additions & 0 deletions wpi-cs-grads.json
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Original file line number Diff line number Diff line change
@@ -0,0 +1,57 @@
{
"studs_2010_11"😞
{
"name":"Total",
"number":98
},

{
"name":"FT",
"number":73
},

{
"name":"PT",
"number":25
},

{
"name":"MS",
"number":61
},

{
"name":"PhD",
"number":37
}

],

"studs_2011_12"😞

{
"name":"Total",
"number":108
},

{
"name":"FT",
"number":85
},

{
"name":"PT",
"number":23
},

{
"name":"MS",
"number":66
},

{
"name":"PhD",
"number":42
}]

}