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| <!DOCTYPE html>
<meta charset="utf-8">
<title>Tesseract</title>
<style>
#charts {
padding: 10px 0;
}
.chart {
display: inline-block;
height: 151px;
margin-bottom: 20px;
}
.reset {
padding-left: 1em;
font-size: smaller;
color: #ccc;
}
.background.bar {
fill: #ccc;
}
.foreground.bar {
fill: steelblue;
}
.axis path, .axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.axis text {
font: 10px sans-serif;
}
.brush rect.extent {
fill: steelblue;
fill-opacity: .125;
}
.brush .resize path {
fill: #eee;
stroke: #666;
}
#hour-chart {
width: 260px;
}
#delay-chart {
width: 230px;
}
#distance-chart {
width: 420px;
}
#date-chart {
width: 920px;
}
#flight-list {
min-height: 1024px;
}
#flight-list .date,
#flight-list .day {
margin-bottom: .4em;
}
#flight-list .flight {
line-height: 1.5em;
background: #eee;
width: 640px;
margin-bottom: 1px;
}
#flight-list .time {
color: #999;
}
#flight-list .flight div {
display: inline-block;
width: 100px;
}
#flight-list div.distance,
#flight-list div.delay {
width: 160px;
padding-right: 10px;
text-align: right;
}
#flight-list .early {
color: green;
}
aside {
position: absolute;
left: 740px;
font-size: smaller;
width: 220px;
}
</style>
<div id="charts">
<div id="hour-chart" class="chart">
<div class="title">Time of Day</div>
</div>
<div id="delay-chart" class="chart">
<div class="title">Arrival Delay (min.)</div>
</div>
<div id="distance-chart" class="chart">
<div class="title">Distance (mi.)</div>
</div>
<div id="date-chart" class="chart">
<div class="title">Date</div>
</div>
</div>
<aside id="totals"><span id="active">-</span> of <span id="total">-</span> flights selected.</aside>
<div id="lists">
<div id="flight-list" class="list"></div>
</div>
</div>
<script src="../js/tesseract/tesseract.min.js"></script>
<script src="../js/d3/d3.v2.min.js"></script>
<script>
d3.csv("busdelay.csv.php", function(flights) {
// Various formatters.
var formatNumber = d3.format(",d"),
formatChange = d3.format("+,d"),
formatDate = d3.time.format("%B %d, %Y"),
formatTime = d3.time.format("%I:%M %p");
// A nest operator, for grouping the flight list.
var nestByDate = d3.nest()
.key(function(d) { return d3.time.day(d.date); });
// A little coercion, since the CSV is untyped.
flights.forEach(function(d, i) {
d.index = i;
d.date = parseDate(d.date);
d.delay = +d.delay;
d.distance = +d.distance;
});
// Create the tesseract and relevant dimensions and groups.
flight = tesseract(flights),
all = flight.groupAll(),
date = flight.dimension(function(d) { return d3.time.day(d.date); }),
dates = date.group(),
hour = flight.dimension(function(d) { return d.date.getHours() + d.date.getMinutes() / 60; }),
hours = hour.group(Math.floor),
delay = flight.dimension(function(d) { return Math.max(-60, Math.min(149, d.delay)); }),
delays = delay.group(function(d) { return Math.floor(d / 10) * 10; }),
distance = flight.dimension(function(d) { return Math.min(90, d.distance); }),
distances = distance.group(function(d) { return Math.floor(d / 50) * 50; });
var charts = [
barChart()
.dimension(hour)
.group(hours)
.x(d3.scale.linear()
.domain([0, 24])
.rangeRound([0, 10 * 24])),
barChart()
.dimension(delay)
.group(delays)
.x(d3.scale.linear()
.domain([-60, 150])
.rangeRound([0, 10 * 21])),
barChart()
.dimension(distance)
.group(distances)
.x(d3.scale.linear()
.domain([0, 90])
.rangeRound([0, 10 * 40])),
barChart()
.dimension(date)
.group(dates)
.round(d3.time.day.round)
.x(d3.time.scale()
.domain([new Date(2001, 0, 1), new Date(2001, 3, 1)])
.rangeRound([0, 10 * 90]))
.filter([new Date(2001, 1, 1), new Date(2001, 2, 1)])
];
// Given our array of charts, which we assume are in the same order as the
// .chart elements in the DOM, bind the charts to the DOM and render them.
// We also listen to the chart's brush events to update the display.
var chart = d3.selectAll(".chart")
.data(charts)
.each(function(chart) { chart.on("brush", renderAll).on("brushend", renderAll); });
// Render the initial lists.
var list = d3.selectAll(".list")
.data([flightList]);
// Render the total.
d3.selectAll("#total")
.text(formatNumber(flight.size()));
renderAll();
// Renders the specified chart or list.
function render(method) {
d3.select(this).call(method);
}
// Whenever the brush moves, re-rendering everything.
function renderAll() {
chart.each(render);
list.each(render);
d3.select("#active").text(formatNumber(all.value()));
}
// Like d3.time.format, but faster.
function parseDate(d) {
return new Date(2001,
d.substring(0, 2) - 1,
d.substring(2, 4),
d.substring(4, 6),
d.substring(6, 8));
}
window.filter = function(filters) {
filters.forEach(function(d, i) { charts[i].filter(d); });
renderAll();
};
window.reset = function(i) {
charts[i].filter(null);
renderAll();
};
function flightList(div) {
var flightsByDate = nestByDate.entries(date.top(40));
div.each(function() {
var date = d3.select(this).selectAll(".date")
.data(flightsByDate, function(d) { return d.key; });
date.enter().append("div")
.attr("class", "date")
.append("div")
.attr("class", "day")
.text(function(d) { return formatDate(d.values[0].date); });
date.exit().remove();
var flight = date.order().selectAll(".flight")
.data(function(d) { return d.values; }, function(d) { return d.index; });
var flightEnter = flight.enter().append("div")
.attr("class", "flight");
flightEnter.append("div")
.attr("class", "time")
.text(function(d) { return formatTime(d.date); });
flightEnter.append("div")
.attr("class", "origin")
.text(function(d) { return d.origin; });
flightEnter.append("div")
.attr("class", "destination")
.text(function(d) { return d.destination; });
flightEnter.append("div")
.attr("class", "distance")
.text(function(d) { return formatNumber(d.distance) + " mi."; });
flightEnter.append("div")
.attr("class", "delay")
.classed("early", function(d) { return d.delay < 0; })
.text(function(d) { return formatChange(d.delay) + " min."; });
flight.exit().remove();
flight.order();
});
}
function barChart() {
if (!barChart.id) barChart.id = 0;
var margin = {top: 10, right: 10, bottom: 20, left: 10},
x,
y = d3.scale.linear().range([100, 0]),
id = barChart.id++,
axis = d3.svg.axis().orient("bottom"),
brush = d3.svg.brush(),
brushDirty,
dimension,
group,
round;
function chart(div) {
var width = x.range()[1],
height = y.range()[0];
y.domain([0, group.top(1)[0].value]);
div.each(function() {
var div = d3.select(this),
g = div.select("g");
// Create the skeletal chart.
if (g.empty()) {
div.select(".title").append("a")
.attr("href", "javascript:reset(" + id + ")")
.attr("class", "reset")
.text("reset")
.style("display", "none");
g = div.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 + ")");
g.append("clipPath")
.attr("id", "clip-" + id)
.append("rect")
.attr("width", width)
.attr("height", height);
g.selectAll(".bar")
.data(["background", "foreground"])
.enter().append("path")
.attr("class", function(d) { return d + " bar"; })
.datum(group.all());
g.selectAll(".foreground.bar")
.attr("clip-path", "url(#clip-" + id + ")");
g.append("g")
.attr("class", "axis")
.attr("transform", "translate(0," + height + ")")
.call(axis);
// Initialize the brush component with pretty resize handles.
var gBrush = g.append("g").attr("class", "brush").call(brush);
gBrush.selectAll("rect").attr("height", height);
gBrush.selectAll(".resize").append("path").attr("d", resizePath);
}
// Only redraw the brush if set externally.
if (brushDirty) {
brushDirty = false;
g.selectAll(".brush").call(brush);
div.select(".title a").style("display", brush.empty() ? "none" : null);
if (brush.empty()) {
g.selectAll("#clip-" + id + " rect")
.attr("x", 0)
.attr("width", width);
} else {
var extent = brush.extent();
g.selectAll("#clip-" + id + " rect")
.attr("x", x(extent[0]))
.attr("width", x(extent[1]) - x(extent[0]));
}
}
g.selectAll(".bar").attr("d", barPath);
});
function barPath(groups) {
var path = [],
i = -1,
n = groups.length,
d;
while (++i < n) {
d = groups[i];
path.push("M", x(d.key), ",", height, "V", y(d.value), "h9V", height);
}
return path.join("");
}
function resizePath(d) {
var e = +(d == "e"),
x = e ? 1 : -1,
y = height / 3;
return "M" + (.5 * x) + "," + y
+ "A6,6 0 0 " + e + " " + (6.5 * x) + "," + (y + 6)
+ "V" + (2 * y - 6)
+ "A6,6 0 0 " + e + " " + (.5 * x) + "," + (2 * y)
+ "Z"
+ "M" + (2.5 * x) + "," + (y + 8)
+ "V" + (2 * y - 8)
+ "M" + (4.5 * x) + "," + (y + 8)
+ "V" + (2 * y - 8);
}
}
brush.on("brushstart.chart", function() {
var div = d3.select(this.parentNode.parentNode.parentNode);
div.select(".title a").style("display", null);
});
brush.on("brush.chart", function() {
var g = d3.select(this.parentNode),
extent = brush.extent();
if (round) g.select(".brush")
.call(brush.extent(extent = extent.map(round)))
.selectAll(".resize")
.style("display", null);
g.select("#clip-" + id + " rect")
.attr("x", x(extent[0]))
.attr("width", x(extent[1]) - x(extent[0]));
dimension.filterRange(extent);
});
brush.on("brushend.chart", function() {
if (brush.empty()) {
var div = d3.select(this.parentNode.parentNode.parentNode);
div.select(".title a").style("display", "none");
div.select("#clip-" + id + " rect").attr("x", null).attr("width", "100%");
dimension.filterAll();
}
});
chart.margin = function(_) {
if (!arguments.length) return margin;
margin = _;
return chart;
};
chart.x = function(_) {
if (!arguments.length) return x;
x = _;
axis.scale(x);
brush.x(x);
return chart;
};
chart.y = function(_) {
if (!arguments.length) return y;
y = _;
return chart;
};
chart.dimension = function(_) {
if (!arguments.length) return dimension;
dimension = _;
return chart;
};
chart.filter = function(_) {
if (_) {
brush.extent(_);
dimension.filterRange(_);
} else {
brush.clear();
dimension.filterAll();
}
brushDirty = true;
return chart;
};
chart.group = function(_) {
if (!arguments.length) return group;
group = _;
return chart;
};
chart.round = function(_) {
if (!arguments.length) return round;
round = _;
return chart;
};
return d3.rebind(chart, brush, "on");
}
});
</script>
|