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<html lang="en">
<head>
<meta charset="utf-8">
<title>module 2 project</title>
<script type="text/javascript" src="//d3js.org/d3.v3.min.js"></script>
<link href='https://fonts.googleapis.com/css?family=Open+Sans:400,300&subset=latin,greek' rel='stylesheet' type='text/css'>
<style type="text/css">
body {
background-color: #EAEAE5;
;
font-family: 'Open Sans', sans-serif;
}
#container{
width: 850px;
margin-left: auto;
margin-right: auto;
margin-top: 50px;
padding: 50px;
background-color: white;
/*border: 1px solid lightgray;*/
border-radius: 5px;
background:white;
box-shadow: 0px 0px 5px 2px lightgray;
}
h1 {
font-size: 38px;
margin: 0 0 3px 40px;
font-weight: 100;
}
h2 {
font-size: 21px;
color:#777;
font-weight: 400;
margin:0 0 20px 40px;
}
p {
font-size: 16px;
font-weight: 400;
color:#777;
margin-bottom: 0;
}
p .note{
font-size: 16px;
text-decoration:none;
color:#777;
}
p .note a{
text-decoration:none;
}
svg {
background-color: white;
margin: auto;
}
/*path:hover {
fill:#8f9d00;
fill-opacity:0.9;
}*/
path{
fill-opacity:.875;
}
.axis path,
.axis line {
fill: none;
stroke: #777;
shape-rendering: crispEdges;
}
.y.axis line{
stroke-dasharray: 2,2;
}
.y.axis path{
display: none;
}
.axis text {
font-family: 'Open Sans', sans-serif;
font-size: 16px;
color:#777;
}
.highlight{
fill:#94a000;
}
/* Styling for new <div> */
#tooltip {
position: absolute;
width: 200px;
height: auto;
padding: 10px;
color: #777;
background-color: rgba(255, 255, 255, 0.9);
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
border-radius: 5px;
-webkit-box-shadow: 0px 0px 5px rgba(0, 0, 0, 0.4);
-moz-box-shadow: 0px 0px 5px rgba(0, 0, 0, 0.4);
box-shadow: 0px 0px 5px rgba(0, 0, 0, 0.4);
pointer-events: none;
}
#tooltip.hidden {
display: none;
}
#tooltip p {
margin: 0;
font-size: 10px;
text-align: left;
}
</style>
</head>
<body>
<div id="container">
<h1>Distance travelled by car has increased</h1>
<h2>Passenger transport by mode*, Great Britain, 1980 to 2013.<h2/>
<p>Passenger kilometres (bn)</p>
<div id = "tooltip" class = "hidden">
<p id = "transportType"></p>
</div>
</div>
<script type="text/javascript">
//Set up stack method
var stack = d3.layout.stack()
.values(function(d) {
return d.transport;
})
.order("reverse");
//Width, height, padding
var w = 800;
var h = 700;
var padding = [ 0, 10, 50, 80 ]; //Top, right, bottom, left
//Set up date format function (years)
var dateFormat = d3.time.format("%Y");
//Set up scales
var xScale = d3.time.scale()
.range([ padding[3], w - padding[1] - padding[1] ]);
var yScale = d3.scale.linear()
.range([ padding[0], h - padding[2] ]);
//Configure area generator
var area0 = d3.svg.area()
.x(function(d) {
return xScale(dateFormat.parse(d.x));
})
.y0(function(d) {
return yScale(0); //Updated
})
.y1(function(d) {
return yScale(0); //Updated
});
//Configure area generator
var area = d3.svg.area()
.x(function(d) {
return xScale(dateFormat.parse(d.x));
})
.y0(function(d) {
return yScale(d.y0); //Updated
})
.y1(function(d) {
return yScale(d.y0 + d.y); //Updated
});
//Easy colors accessible via a 10-step ordinal scale
// var color = d3.scale.category10();
var color = d3.scale.category10().range(["#b02d00", "#da9100", "#7b2b00"]);
//Create the empty SVG image
var svg = d3.select("#container")
.append("svg")
.attr("width", w)
.attr("height", h);
//Load data
d3.csv("1-Passenger-transport-by-modev3.csv", function(data) {
//Uncomment to log the newly loaded data to the console
console.log(data);
//Data is loaded in, but we need to restructure it.
//Remember, each line requires an array of x/y pairs;
//that is, an array of arrays, like so:
//
// [ [x: 1, y: 1], [x: 2, y: 2], [x: 3, y: 3] ]
//
//Our x value will be the year, and y will be the amount
//of CO2. We also need to know which country belongs to
//each line, so we will build an array of objects that is
//structured like this:
//
/*
[
{
country: "Australia",
transport: [
{ x: "1961", y: 90589.568 },
{ x: "1962", y: 94912.961 },
{ x: "1963", y: 101029.517 },
…
]
},
{
country: "Bermuda",
transport: [
{ x: "1961", y: 176.016 },
{ x: "1962", y: 157.681 },
{ x: "1963", y: 150.347 },
…
]
},
…
]
*/
//
//Note that this is an array of objects. Each object
//contains two values, 'country' and 'transport'.
//The 'transport' value is itself an array, containing
//more objects, each one holding x and y values.
//
//The x (year) values have to be strings in this case,
//because the date format function expects a string
//to parse into a Date object.
//New array with all the years, for referencing later
var years = [ "1980", "1981", "1982", "1983", "1984", "1985", "1986", "1987", "1988", "1989", "1990", "1991", "1992", "1993", "1994", "1995", "1996", "1997", "1998", "1999", "2000", "2001", "2002", "2003", "2004", "2005", "2006", "2007", "2008", "2009", "2010","2011", "2012", "2013"];
//Create a new, empty array to hold our restructured dataset
var dataset = [];
//Loop once for each row in data
for (var i = 0; i < data.length; i++) {
//Create new object with this country's name and empty array
dataset[i] = {
transportMode: data[i].transport,
transport: []
};
//Loop through all the years
for (var j = 0; j < years.length; j++) {
//Default value, used in case no value is present
var amount = null;
// If value is not empty
if (data[i][years[j]]) {
amount = +data[i][years[j]];
}
//Add a new object to the transport data array
//for this country
dataset[i].transport.push({
x: years[j],
y: amount
});
}
}
//Stack the data!
stack(dataset);
//Uncomment to log the original data to the console
//console.log(data);
//Uncomment to log the newly restructured dataset to the console
//console.log(dataset);
//Now that the data is ready, we can check its
//min and max values to set our scales' domains!
xScale.domain([
d3.min(years, function(d) {
return dateFormat.parse(d);
}),
d3.max(years, function(d) {
return dateFormat.parse(d);
})
]);
//Need to recalcluate the max value for yScale
//differently, now that everything is stacked.
//Loop once for each year, and get the total value
//of CO2 for that year.
var totals = [];
for (i = 0; i < years.length; i++) {
totals[i] = 0;
for (j = 0; j < dataset.length; j++) {
totals[i] += dataset[j].transport[i].y;
}
}
yScale.domain([ d3.max(totals), 0 ]);
//Areas
//
//Now that we are creating multiple paths, we can use the
//selectAll/data/enter/append pattern to generate as many
//as needed.
//Make a path for mode of transport
var paths = svg.selectAll("path")
.data(dataset)
.enter()
.append("path")
.attr("class", "area")
.attr("fill", "#B02D00")
.attr("d", function(d) {
//Calculate path based on only d.transport array,
//not all of d (which would include the country name)
return area0(d.transport);
})
//tooltip
.on("mouseover", function(d, i) {
d3.select(this)
.classed("highlight", true);
//Position the tooltip <div> and set its content
d3.select("#tooltip")
.style("left", (d3.event.pageX) + "px")
.style("top", (d3.event.pageY - 5) + "px")
.text(d.transportMode)
.transition()
.duration(500)
.style("opacity", 1);
//Show the tooltip
d3.select("#tooltip").classed("hidden", false);
})
.on("mouseout", function() {
d3.select(this)
.classed("highlight", false);
//Hide the tooltip
d3.select("#tooltip")
.transition()
.duration(500)
.style("opacity", 0);
})
.transition()
.duration(1700)
.ease("cubic-in-out")
.attr("d", function(d) {
//Calculate path based on only d.transport array,
//not all of d (which would include the country name)
return area(d.transport);
})
.attr("stroke", "none")
.attr("fill", function(d, i) {
return color(i);
});
// Create labels
svg.append("text")
.attr("x", 760)
.attr("y", 630)
.text("Rail")
.attr("text-anchor","end")
.attr("opacity", 0)
.transition()
.delay(1000)
.duration(1500)
.attr("opacity", 1)
.attr("fill", "white")
.attr("font-size", "20px");;
svg.append("text")
.attr("x", 760)
.attr("y", 585)
.attr("text-anchor","end")
.text("Buses and coaches")
.attr("opacity", 0)
.transition()
.delay(1000)
.duration(1500)
.attr("opacity", 1)
.attr("fill", "white")
.attr("font-size", "20px");
svg.append("text")
.attr("x", 760)
.attr("y", 530)
.text("Cars, vans and taxis")
.attr("text-anchor","end")
.attr("opacity", 0)
.transition()
.delay(1000)
.duration(1500)
.attr("opacity", 1)
.attr("fill", "white")
.attr("font-size", "20px");
//Append a title with the country name (so we get easy tooltips)
// paths.append("title")
// .text(function(d) {
// return d.transportMode;
// });
//Configure axis generators
var xAxis = d3.svg.axis()
.scale(xScale)
.orient("bottom")
.ticks(15)
.tickPadding([padding[1]])
.tickFormat(function(d) {
return dateFormat(d);
});
var yAxis = d3.svg.axis()
.scale(yScale)
.orient("left")
.ticks(5)
.tickPadding([padding[1]])
.tickSize(- w);
//Create axes
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + (h - padding[2]) + ")")
.call(xAxis);
svg.append("g")
.attr("class", "y axis")
.attr("transform", "translate(" + padding[3] + ",0)")
.call(yAxis);
});
//Add source to bottom of svg
d3.select("#container").append("p").html('<p class="note">*Total distance travelled (all modes) also includes distance travelled by motor cycle, pedal cycle and UK air travel.<p class="note">Source:<a style="color:steelblue", "text-decoration:none;" href="https://www.gov.uk/government/statistical-data-sets/ras30-reported-casualties-in-road-accidents"> Transport Statistics Great Britain: 2014, Table TSGB0101, DFT</a></p>');
</script>
</body>
</html>
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