Created
March 7, 2016 00:48
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USF_VictorDu_Scatter_plot_matrix
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
svg { | |
font: 10px sans-serif; | |
padding: 10px; | |
} | |
.axis, | |
.frame { | |
shape-rendering: crispEdges; | |
} | |
.axis line { | |
stroke: #ddd; | |
} | |
.axis path { | |
display: none; | |
} | |
.cell text { | |
font-weight: bold; | |
text-transform: capitalize; | |
} | |
.frame { | |
fill: none; | |
stroke: #aaa; | |
} | |
circle { | |
fill-opacity: .7; | |
} | |
circle.hidden { | |
fill: #ccc !important; | |
} | |
.extent { | |
fill: #000; | |
fill-opacity: .125; | |
stroke: #fff; | |
} | |
</style> | |
<body> | |
<script src="//d3js.org/d3.v3.min.js"></script> | |
<script> | |
var width = 1510, | |
size = 150, | |
padding = 20; | |
var x = d3.scale.linear() | |
.range([padding / 2, size - padding / 2]); | |
var y = d3.scale.linear() | |
.range([size - padding / 2, padding / 2]); | |
var xAxis = d3.svg.axis() | |
.scale(x) | |
.orient("bottom") | |
.ticks(5); | |
var yAxis = d3.svg.axis() | |
.scale(y) | |
.orient("left") | |
.ticks(5); | |
var color = d3.scale.category10(); | |
d3.csv("https://gist.githubusercontent.com/VictorDu/fbd642275a936c99c90c/raw/412276f252fa93b23cd5c6d2f68e8fbb66fe2112/cadata.csv", function(error, data) { | |
if (error) throw error; | |
var domainByTrait = {}, | |
traits = d3.keys(data[0]).filter(function(d) { return d !== "number"; }), | |
n = traits.length; | |
traits.forEach(function(trait) { | |
domainByTrait[trait] = d3.extent(data, function(d) { console.log(d[trait]); return +d[trait]; }); | |
}); | |
xAxis.tickSize(size * n); | |
yAxis.tickSize(-size * n); | |
var brush = d3.svg.brush() | |
.x(x) | |
.y(y) | |
.on("brushstart", brushstart) | |
.on("brush", brushmove) | |
.on("brushend", brushend); | |
var svg = d3.select("body").append("svg") | |
.attr("width", size * n + padding) | |
.attr("height", size * n + padding) | |
.append("g") | |
.attr("transform", "translate(" + padding + "," + padding / 2 + ")"); | |
svg.selectAll(".x.axis") | |
.data(traits) | |
.enter().append("g") | |
.attr("class", "x axis") | |
.attr("transform", function(d, i) { return "translate(" + (n - i - 1) * size + ",0)"; }) | |
.each(function(d) { x.domain(domainByTrait[d]); d3.select(this).call(xAxis); }); | |
svg.selectAll(".y.axis") | |
.data(traits) | |
.enter().append("g") | |
.attr("class", "y axis") | |
.attr("transform", function(d, i) { return "translate(0," + i * size + ")"; }) | |
.each(function(d) { y.domain(domainByTrait[d]); d3.select(this).call(yAxis); }); | |
var cell = svg.selectAll(".cell") | |
.data(cross(traits, traits)) | |
.enter().append("g") | |
.attr("class", "cell") | |
.attr("transform", function(d) { return "translate(" + (n - d.i - 1) * size + "," + d.j * size + ")"; }) | |
.each(plot); | |
// Titles for the diagonal. | |
cell.filter(function(d) { return d.i === d.j; }).append("text") | |
.attr("x", padding) | |
.attr("y", padding) | |
.attr("dy", ".71em") | |
.text(function(d) { return d.x; }); | |
cell.call(brush); | |
function plot(p) { | |
var cell = d3.select(this); | |
x.domain(domainByTrait[p.x]); | |
y.domain(domainByTrait[p.y]); | |
cell.append("rect") | |
.attr("class", "frame") | |
.attr("x", padding / 2) | |
.attr("y", padding / 2) | |
.attr("width", size - padding) | |
.attr("height", size - padding); | |
cell.selectAll("circle") | |
.data(data) | |
.enter().append("circle") | |
.attr("cx", function(d) { return x(d[p.x]); }) | |
.attr("cy", function(d) { return y(d[p.y]); }) | |
.attr("r", 3) | |
.style("fill", function(d) { return color(d[p.y]); }); | |
} | |
function cross(a, b) { | |
var c = [], n = a.length, m = b.length, i, j; | |
for (i = -1; ++i < n;) for (j = -1; ++j < m;) c.push({x: a[i], i: i, y: b[j], j: j}); | |
return c; | |
} | |
var brushCell; | |
// Clear the previously-active brush, if any. | |
function brushstart(p) { | |
if (brushCell !== this) { | |
d3.select(brushCell).call(brush.clear()); | |
x.domain(domainByTrait[p.x]); | |
y.domain(domainByTrait[p.y]); | |
brushCell = this; | |
} | |
} | |
// Highlight the selected circles. | |
function brushmove(p) { | |
var e = brush.extent(); | |
svg.selectAll("circle").classed("hidden", function(d) { | |
return e[0][0] > d[p.x] || d[p.x] > e[1][0] | |
|| e[0][1] > d[p.y] || d[p.y] > e[1][1]; | |
}); | |
} | |
// If the brush is empty, select all circles. | |
function brushend() { | |
if (brush.empty()) svg.selectAll(".hidden").classed("hidden", false); | |
} | |
d3.select(self.frameElement).style("height", size * n + padding + 20 + "px"); | |
}); | |
</script> |
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