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index.html
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index.html
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<meta charset="utf-8">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="https://d3js.org/d3.v3.min.js"></script>
<title>US Unemployment Visualizations</title>
</head>
<style>
html {
height: 100%;
}
body, table {
font: 12px Arial;
}
h4 {
margin-top: 0px;
margin-bottom: 5px;
}
.inactive {
fill: #AAA;
}
.active {
fill: orange;
}
.area.below {
/*fill: rgb(145,207,96);*/
}
.area.above {
fill: rgb(252,141,89);
}
.baseLine {
stroke: black;
stroke-width: 1.5;
fill: none;
}
.focus circle {
fill: white;
stroke: black;
stroke-width: 2px;
}
#usMap {
border-style: solid;
border-color: #CCC;
}
#usMap path:hover {
opacity: 0.7;
}
.chartHover {
fill: #FD0;
}
.axis path,
.axis line {
fill: none;
stroke: grey;
stroke-width: 1;
shape-rendering: crispEdges;
}
#unemploymentCharts {
float:left;
width: 60%;
height: 95%;
margin: 0px 0px 0px 0.6%;
padding: 10px;
border-style: solid;
border-color: #AAA;
overflow-y: scroll;
}
#options {
float:right;
width: 35%;
height: 95%;
padding: 10px;
}
#stateOptions {
height: 250px;
width: 35%;
float: left;
border-style: solid;
border-color: #CCC;
overflow-y: scroll;
margin: 0px 5px 5px 0px;
}
#comparisonOptions {
float: left;
width: 50%;
margin: 0 auto;
}
#timeOptions {
float: left;
width: 50%;
margin-bottom: 7px;
}
#usMap {
width:100%;
display: inline-block;
}
</style>
<body>
<!-- Where the unemployment visualization svgs go -->
<div id="unemploymentCharts">
</div>
<!-- All the options for the visualization (states, years, etc.) -->
<div id="options">
<h1>US Unemployment Visualization</h1>
<h4>States shown:</h4>
<div id="stateOptions">
<!-- State checkboxes -->
<input type="checkbox" id ="all" name="stateSelection" onClick=selectAll(this)> Select All<br>
</div>
<div id="timeOptions">
<h4>Time Period:</h4>
<table>
<tr>
<td>
From:  
</td>
<td>
<select id="fromMonth" class="timePeriodSelector">
<option value="Jan">Jan</option>
<option value="Feb">Feb</option>
<option value="Mar">Mar</option>
<option value="Apr">Apr</option>
<option value="May">May</option>
<option value="Jun">Jun</option>
<option value="Jul">Jul</option>
<option value="Aug">Aug</option>
<option value="Sep">Sep</option>
<option value="Oct">Oct</option>
<option value="Nov">Nov</option>
<option value="Dec">Dec</option>
</select>
<select id="fromYear" class="timePeriodSelector">
</select>
</td>
</tr>
<tr>
<td>To:   </td>
<td>
<select id="toMonth" class="timePeriodSelector">
<option value="Jan">Jan</option>
<option value="Feb">Feb</option>
<option value="Mar">Mar</option>
<option value="Apr">Apr</option>
<option value="May">May</option>
<option value="Jun">Jun</option>
<option value="Jul">Jul</option>
<option value="Aug">Aug</option>
<option value="Sep">Sep</option>
<option value="Oct">Oct</option>
<option value="Nov">Nov</option>
<option value="Dec">Dec</option>
</select>
<select id="toYear" class="timePeriodSelector">
</select>
</td>
</tr>
</table>
</div>
<div id="comparisonOptions">
<h4>Compare to:</h4>
<input type="radio" name="comparison" id="noComparison" value="none" checked> No Comparison<br>
<input type="radio" name="comparison" id="stateComparison" value="state" display="inline"> State:
<br>  
<select id="stateComparisonOptions" name="states" disabled>
</select>
<br>
<input type="radio" name="comparison" id="yearComparison" value="years"> Years:
<br>  
<select id="year1" class="yearComparisonOptions" name="years" disabled>
</select>
 and 
<select id="year2" class="yearComparisonOptions" name="years" disabled>
</select>
<br>
<br>
<button id="updateCharts">Update Chart Options</button>
</div>
<div id="usMap">
<svg></svg>
</div>
</div>
<script type="text/javascript">
// US map drawing.
//Width and height of map
var width = $("#usMap").width();
var height = 300;
// D3 Projection
var projection = d3.geo.albersUsa()
.translate([width/2, height/2]) // translate to center of screen
.scale([width]); // scale things down so see entire US
// Define path generator
var path = d3.geo.path() // path generator that will convert GeoJSON to SVG paths
.projection(projection); // tell path generator to use albersUsa projection
//Create SVG element and append map to the SVG
var mapSvg = d3.select("#usMap")
.select("svg")
.attr("width", width)
.attr("height", height);
mapSvg.append("rect")
.attr("class", "background")
.attr("width", width)
.attr("height", height)
.style("fill", "#FFF")
.on("click", function() {
mapSvg.selectAll("path").each(function(d) {
if (d3.select(this).classed("active")) {
changeChartDisplay(this.id);
}
});
});
d3.json("us-states.txt", function(json) {
// Bind the data to the SVG and create one path per GeoJSON feature
mapSvg.selectAll("path")
.data(json.features)
.enter()
.append("path")
.attr("d", path)
.attr("id", function(d) { return d.properties.name.replace(/\s+/g, ''); })
.style("stroke", "#fff")
.style("stroke-width", "1")
.classed("inactive", function(d) {
return (d.properties.name != "Texas");
})
.classed("active", function(d) {
return (d.properties.name == "Texas");
})
.on("click", function() {
changeChartDisplay(this.id);
});
});
// Set up selection controls.
$(document.getElementsByName("comparison")).on("click", function() {
var _this = this;
if (_this.value == "state") {
$("#stateComparisonOptions").attr("disabled", false);
$(".yearComparisonOptions").attr("disabled", true);
$(".timePeriodSelector").attr("disabled", false);
} else if (_this.value == "years") {
$("#stateComparisonOptions").attr("disabled", true);
$(".yearComparisonOptions").attr("disabled", false);
$(".timePeriodSelector").attr("disabled", true);
} else {
$("#stateComparisonOptions").attr("disabled", true);
$(".yearComparisonOptions").attr("disabled", true);
$(".timePeriodSelector").attr("disabled", false);
}
});
function selectAll(_this) {
checkboxes = document.getElementsByName(_this.name);
for(var i=0, n=checkboxes.length;i<n;i++) {
if (checkboxes[i].checked != _this.checked) {
changeChartDisplay(checkboxes[i].id);
}
}
}
var fromYearSelection = d3.select("#fromYear");
var toYearSelection = d3.select("#toYear");
for (var i = 1978; i <= 2016; ++i) {
fromYearSelection.append("option")
.attr("value", i)
.text(i);
toYearSelection.append("option")
.attr("value", i)
.text(i);
}
var yearSelection1 = d3.select("#year1");
var yearSelection2 = d3.select("#year2");
for (var i = 1978; i <= 2015; ++i) {
yearSelection1.append("option")
.attr("value", i)
.text(i);
yearSelection2.append("option")
.attr("value", i)
.text(i);
}
document.getElementById("toYear").value = "2016";
document.getElementById("toMonth").value = "Jul";
//Width and height
var margin = {top: 30, right: 20, bottom: 30, left: 50};
var w = $("#unemploymentCharts").width() * 0.95 - margin.left - margin.right;
var h = 150 - margin.bottom - margin.top;
var svgHeight = h + margin.top + margin.bottom;
var svgWidth = w + margin.left + margin.right;
// Date-parser.
var parseDate = d3.time.format("%b-%Y").parse;
// Set up scales.
var x = d3.time.scale().range([0, w]);
var y = d3.scale.linear().range([h, 0]);
// Define the axes.
var xAxis = d3.svg.axis().scale(x).orient("bottom").ticks(7).tickFormat(d3.time.format("%b '%y"));
var yAxis = d3.svg.axis().scale(y).orient("left").ticks(5);
// Define the line.
var valueLine = d3.svg.line()
.x(function(d) {
return x(d.date);
})
.y(function(d) {
return y(d.unemployment);
});
var zeroLine = d3.svg.line()
.x(function(d) {
return x(d.date);
})
.y(y(0));
// Define the area.
var valueArea = d3.svg.area()
.x(function(d) {
return x(d.date);
})
.y1(function(d) {
return y(d.unemployment);
});
var zeroArea = d3.svg.area()
.x(function(d) {
return x(d.date);
})
.y0(y(0))
.y1(y(0));
var bisectDate = d3.bisector(function(d) { return d.date; }).left;
// Process the unemployment data and make the charts.
d3.csv("unemployment.csv", function(data) {
dataAllStates = {};
// Process the date and rate of each datum, and add it to the corresponding state's array.
data.forEach(function(d) {
if (!dataAllStates[d.state]) {
dataAllStates[d.state] = [];
}
d.date = parseDate(d.month + "-" + d.year);
d.unemployment = +d.unemployment;
dataAllStates[d.state].push(d);
});
// Sort each state's unemployment time series by date.
for (var state in dataAllStates) {
dataAllStates[state].sort(function(a,b) {
if (a.date < b.date) {
return -1;
} else if (a.date > b.date) {
return 1;
} else {
return 0;
}
});
}
// Create an array of states, each with a reference to all time series data.
var stateChartData = [];
for (var state in dataAllStates) {
var d = {};
d.state = state;
d.series = dataAllStates;
stateChartData.push(d);
}
// Populate the state selection and comparison lists.
var stateOptions = d3.select("#stateOptions");
var stateComparisons = d3.select("#stateComparisonOptions");
stateChartData.forEach(function(d) {
var option = stateOptions
.append("label")
.datum(d.state);
option.append("input")
.attr("type", "checkbox")
.property("checked", function(d) {
return (d == "Texas" || d == "National Average")
})
.attr("name", "stateSelection")
.attr("id", removeWhitespace)
.on("click", changeChartDisplay);
option.append("text")
.text(d.state);
option.append("br");
/*
if (d.state == "Texas" || d.state == "National Average") {
option.select("input").attr("checked", true);
}
*/
var comparison = stateComparisons.append("option")
.datum(d.state)
.attr("value", d.state)
.text(d.state);
});
// Scale the range of the data
x.domain(d3.extent(data, function(d) { return d.date; }));
y.domain([0, d3.max(data, function(d) { return d.unemployment; })]);
// Create the svgs for the charts.
svgCharts = d3.select("#unemploymentCharts").selectAll("svg")
.data(stateChartData)
.enter()
.append("svg")
.style("display", "block")
.attr("id", function(d) { return removeWhitespace(d.state); })
.classed("chartActive", function(d) { return d.state == "National Average" || d.state == "Texas"; })
.attr("width", svgWidth)
.attr("height", function(d) {
if (d.state == "National Average" || d.state == "Texas") {
return svgHeight;
} else {
return 0;
}
})
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
var defs = svgCharts.append("defs");
// Add background.
svgCharts.append("rect")
.attr("transform", "translate(0,-" + margin.top + ")")
.attr("width", w)
.attr("height", h + margin.top + margin.bottom)
.attr("fill", "white");
// Side clip-path.
defs.append("clipPath")
.attr("id", "sideClip")
.append("rect")
.attr("transform", "translate(0,-" + margin.top + ")")
.attr("width", w)
.attr("height", h + margin.top);
// Add the baseline.
svgCharts.append("path")
.attr("clip-path", "url(#sideClip)")
.attr("class", "baseline")
.attr("d", function(d) {
return zeroLine(d.series[d.state]);
});
// Add the areas.
svgCharts.append("path")
.attr("clip-path", "url(#sideClip)")
.attr("class", "area below")
.attr("fill", "steelblue")
.attr("d", function(d) {
return zeroArea(d.series[d.state]);
});
svgCharts.append("path")
.attr("clip-path", "url(#sideClip)")
.attr("class", "area above")
.attr("d", function(d) {
return zeroArea(d.series[d.state]);
});
// Area gets drawn in updateCharts()
// Draw the axes.
svgCharts.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + h + ")");
svgCharts.append("g")
.attr("class", "y axis");
// Add y-axis label.
svgCharts.append("text")
.attr("text-anchor", "end")
.attr("y", 6)
.attr("dy", ".75em")
.attr("transform", "rotate(-90)")
.text("Rate(%)")
// Add focus circle and value.
var focus = svgCharts.append("g")
.attr("class", "focus")
.style("display", "none");
focus.append("circle")
.attr("r", 3.5);
focus.append("text")
.attr("x", 9)
.attr("y", -5)
.attr("dy", ".35em");
svgCharts.append("text")
.datum(function(d) { return d.state; })
.attr("x", w)
.attr("y", 0)
.attr("text-anchor", "end")
.style("font", "20px Arial")
.attr("fill", "#888")
.text(function(d) { return d; });
// Register mouse handlers.
svgCharts.on("mouseover", function(d) {
d3.select("#usMap").select("#" + removeWhitespace(d.state))
.classed("chartHover", true);
var focus = d3.select(this).select(".focus");
focus.style("display", null);
})
.on("mouseout", function(d) {
d3.select("#usMap").select("#" + removeWhitespace(d.state))
.classed("chartHover", false);
var focus = d3.select(this).select(".focus");
focus.style("display", "none");
})
.on("mousemove", mousemove)
.on("dblclick", function(d) {
changeChartDisplay(d.state);
})
function mousemove(d) {
var x0 = x.invert(d3.mouse(this)[0]);
var i = bisectDate(d.series[d.state], x0, 1);
var d0 = d.series[d.state][i - 1];
var d1 = d.series[d.state][i];
if (x0 - d0.date > d1.date - x0) {
var d = d1;
x0 = d1.date;
} else {
var d = d0;
x0 = d0.date;
}
var d = x0 - d0.date > d1.date - x0 ? d1 : d0;
x0.setDate(1);
x0.setHours(0);
x0.setMinutes(0);
x0.setSeconds(0);
x0 = x(x0);
var lineElement = d3.select(this).select(".baseline").node();
var BBox = lineElement.getBBox();
var pathLength = lineElement.getTotalLength();
var scale = pathLength/BBox.width;
var beginning = x0, end = lineElement.getTotalLength();
while(true) {
var target = Math.floor((beginning + end) / 2);
var pos = lineElement.getPointAtLength(target);
if ((target === end || target === beginning ) && pos.x !== x0) {
break;
}
if (pos.x > x0) {
end = target;
} else if (pos.x < x0) {
beginning = target;
} else {
break; // Position found.
}
}
var focus = d3.select(this).select(".focus");
if (x0 > w / 2) {
focus.select("text").attr("x", -9);
focus.select("text").attr("text-anchor", "end");
} else {
focus.select("text").attr("x", 9);
focus.select("text").attr("text-anchor", "start");
}
focus.attr("transform", "translate(" + x0 + "," + pos.y + ")");
focus.select("text").text((d.date.getMonth() + 1) + "/" + d.date.getFullYear() + ": " + d.unemployment + "%");
}
updateCharts();
// Add an on-click for the update chart options button.
d3.select("#updateCharts")
.on("click", function(d) { updateCharts() });
});
function removeWhitespace(str) {
return str.replace(/\s+/g, '');
}
function changeChartDisplay(d) {
var id = d.replace(/\s+/g, '');
var stateChart = d3.select("#unemploymentCharts")
.select("#" + id);
var stateMap = d3.select("#usMap").select("#" + id);
var stateCheckBox = d3.select("#stateOptions").select("#" + id);
var active = stateChart.classed("chartActive");
if (!active) {
stateCheckBox.property("checked", true);
stateChart.transition()
.attr("height", svgHeight)
.attr("opacity", 1);
} else {
stateCheckBox.property("checked", false);
stateChart.transition()
.attr("height", 0)
.attr("opacity", 0);
}
stateChart.classed("chartActive", !active);
stateMap.classed("active", !active);
stateMap.classed("inactive", active);
}
function updateChartNoComparison(d, fromDate, toDate) {
// Adjust the y scale.
var min;
this.each(function(d) {
min = d3.min(d.series[d.state],
function(a) {
// Check if the date is outside the displayed range.
var datumDate = parseDate(a.month + "-" + a.year);
if (datumDate > toDate || datumDate < fromDate) {
return 100;
}
return a.unemployment;
})
y.domain([min,
d3.max(d.series[d.state],
function(a) {
var datumDate = parseDate(a.month + "-" + a.year);
if (datumDate > toDate || datumDate < fromDate) {
return 0;
}
return a.unemployment;
})]);
});
this.select(".area.below")
.attr("fill", "steelblue")
.attr("d", function(d) {
return valueArea.y0(y(min))(d.series[d.state]);
});
this.select(".area.above")
.attr("d", function(d) {
return zeroArea.y0(y(min))(d.series[d.state]);
});
this.select(".baseline")
.attr("d", function(d) {
return valueLine(d.series[d.state]);
});
this.select(".x.axis")
.call(xAxis.tickFormat(d3.time.format("%b '%y")));
this.select(".y.axis")
.call(yAxis);
}
function updateChartStateComparison(d, fromDate, toDate) {
var comparedState = document.getElementById("stateComparisonOptions").value;
// Adjust the y scale.
this.each(function(d) {
y.domain([d3.min(d.series[d.state].concat(d.series[comparedState]),
function(a) {
// Check if the date is outside the displayed range.
var datumDate = parseDate(a.month + "-" + a.year);
if (datumDate > toDate || datumDate < fromDate) {
return 100;
}
return a.unemployment;
}),
d3.max(d.series[d.state].concat(d.series[comparedState]),
function(a) {
var datumDate = parseDate(a.month + "-" + a.year);
if (datumDate > toDate || datumDate < fromDate) {
return 0;
}
return a.unemployment;
})]);
});
// Update areas.
this.select(".area.below")
.attr("fill", "rgb(145,207,96)")
.attr("d", function(d) {
var y0 = function(a,i) {
return y(d3.min([d.series[comparedState][i].unemployment, d.series[d.state][i].unemployment]));
};
return valueArea.y0(y0)(d.series[d.state]);
});
this.select(".area.above")
.attr("d", function(d) {
var y0 = function(a,i) {
return y(d3.max([d.series[comparedState][i].unemployment, d.series[d.state][i].unemployment]));
//return y(d.series[comparedState][i].unemployment);
};
return valueArea.y0(y0)(d.series[d.state]);
});
this.select(".baseline")
.attr("d", function(d) {
return valueLine(d.series[d.state]);
});
this.select(".x.axis")
.call(xAxis.tickFormat(d3.time.format("%b '%y")));
this.select(".y.axis")
.call(yAxis);
}
function updateChartYearComparison(d, year1, year2) {
var fromDate1 = new Date(year1, 0, 01, 0, 0, 0, 0);
var toDate1 = new Date(year1, 11, 01, 0, 0, 0, 0);
var fromDate2 = new Date(year2, 0, 01, 0, 0, 0, 0);
var toDate2 = new Date(year2, 11, 01, 0, 0, 0, 0);
this.each(function(d) {
y.domain([d3.min(d.series[d.state],
function(a) {
// Check if the date is outside the displayed range.
var datumDate = parseDate(a.month + "-" + a.year);
if (!((datumDate <= toDate1 && datumDate >= fromDate1) || (datumDate <= toDate2 && datumDate >= fromDate2))) {
return 100;
}
return a.unemployment;
}),
d3.max(d.series[d.state],
function(a) {
var datumDate = parseDate(a.month + "-" + a.year);
if (!((datumDate <= toDate1 && datumDate >= fromDate1) || (datumDate <= toDate2 && datumDate >= fromDate2))) {
return 0;
}
return a.unemployment;
})]);
});
x.domain([fromDate1, toDate1]);
// Offset to obtain compared year unemployment value.
var iteratorOffset = 12 * (year1 - year2);
// Update areas.
this.select(".area.below")
.attr("fill", "rgb(145,207,96)")
.attr("d", function(d) {
var y0 = function(a,i) {
// If the new iterator is within range, use that value.
if (!(i - iteratorOffset < 0 || i - iteratorOffset >= d.series[d.state].length)) {
return y(d3.min([d.series[d.state][i - iteratorOffset].unemployment, d.series[d.state][i].unemployment]));
} else {
//return y(0);
return y(d.series[d.state][i].unemployment);
}
};
return valueArea.y0(y0)(d.series[d.state]);
});
this.select(".area.above")
.attr("d", function(d) {
var y0 = function(a,i) {
// If the new iterator is within range, use that value.
if (!(i - iteratorOffset < 0 || i - iteratorOffset >= d.series[d.state].length)) {
return y(d3.max([d.series[d.state][i - iteratorOffset].unemployment, d.series[d.state][i].unemployment]));
} else {
return y(d.series[d.state][i].unemployment);
}
};
return valueArea.y0(y0)(d.series[d.state]);
});
this.select(".baseline")
.attr("d", function(d) {
return valueLine(d.series[d.state]);
});
this.select(".x.axis")
.call(xAxis.tickFormat(d3.time.format("%b")));
this.select(".y.axis")
.call(yAxis);
}
function updateCharts() {
// Get chart settings.
// Get time interval and adjust scale.
var fromYear = document.getElementById("fromYear").value;
var fromMonth = document.getElementById("fromMonth").value;
var toYear = document.getElementById("toYear").value;
var toMonth = document.getElementById("toMonth").value;
var fromDate = parseDate(fromMonth + "-" + fromYear);
var toDate = parseDate(toMonth + "-" + toYear);
var year1 = document.getElementById("year1").value;
var year2 = document.getElementById("year2").value;
x.domain([fromDate, toDate]);
if (fromDate >= toDate) {
alert("Please select a valid time interval.\n" +
"\"From\" date cannot be after \"To\" date.");
return;
}
// Update the charts.
var activeCharts = d3.select("#unemploymentCharts").selectAll(".chartActive");
var allCharts = d3.select("#unemploymentCharts").selectAll("svg");
var inactiveCharts = allCharts.filter(function(obj) {
return !activeCharts[0].some(function(obj2) {
return removeWhitespace(obj.state) == obj2.id;
});
});
if (document.getElementById("noComparison").checked) {
// No comparison selected.
activeCharts[0].forEach(function(d, i, array) {
// If the chart is active, transition. Otherwise, don't.
if (array[i].id == array[array.length - 1].id) {
d3.select(d)
.transition().duration(2000)
.call(updateChartNoComparison, fromDate, toDate)
.each("end", function(a) {
inactiveCharts[0].forEach(function(d) {
d = d3.select(d);
d.call(updateChartNoComparison, fromDate, toDate);
});
});
} else {
d3.select(d)
.transition().duration(2000)
.call(updateChartNoComparison, fromDate, toDate);
}
});
} else if (document.getElementById("stateComparison").checked) {
// State comparisons selected.
activeCharts[0].forEach(function(d, i, array) {
// If the chart is active, transition. Otherwise, don't.
if (array[i].id == array[array.length - 1].id) {
d3.select(d)
.transition().duration(2000)
.call(updateChartStateComparison, fromDate, toDate)
.each("end", function(a) {
inactiveCharts[0].forEach(function(d) {
d = d3.select(d);
d.call(updateChartStateComparison, fromDate, toDate);
});
});
} else {
d3.select(d)
.transition().duration(2000)
.call(updateChartStateComparison, fromDate, toDate);
}
});
} else {
// Year comparisons selected.
activeCharts[0].forEach(function(d, i, array) {
// If the chart is active, transition. Otherwise, don't.
if (array[i].id == array[array.length - 1].id) {
d3.select(d)
.transition().duration(2000)
.call(updateChartYearComparison, year1, year2)
.each("end", function(a) {
inactiveCharts[0].forEach(function(d) {
d = d3.select(d);
d.call(updateChartYearComparison, year1, year2);
});
});
} else {
d3.select(d)
.transition().duration(2000)
.call(updateChartYearComparison, year1, year2);
}
});
}
}
</script>
</body>