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driver.js
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$(document).ready(function(){
var slideNumber = 1;
// Initiate webpage with slide one
$('#scene1').removeClass('inactiveSlide');
$('#navItemOne').addClass('active')
slide(slideNumber);
// Navigation functionality
$('.navItem').click(function(){
// Set nav active color
$('.navItem').removeClass('active');
$(this).addClass('active');
// Remove current slide
$('svg').remove();
// Set all slide details to not display
$('#scenetext div').addClass('inactiveSlide');
// Call slide function
if ($(this).is('#navItemOne')) {
$('#scene1').removeClass('inactiveSlide');
slideNumber = 1;
slide(slideNumber);
}
if ($(this).is('#navItemTwo')) {
$('#scene2').removeClass('inactiveSlide');
slideNumber = 2;
slide(slideNumber);
}
if ($(this).is('#navItemThree')) {
$('#scene3').removeClass('inactiveSlide');
slideNumber = 3;
slide(slideNumber);
}
if ($(this).is('#navItemFour')) {
$('#scene4').removeClass('inactiveSlide');
slideNumber = 4;
slide(slideNumber);
}
if ($(this).is('#navItemFive')) {
$('#scene5').removeClass('inactiveSlide');
slideNumber = 5;
slide(slideNumber);
}
if ($(this).is('#navItemSix')) {
$('#scene6').removeClass('inactiveSlide');
slideNumber = 6;
slide(slideNumber);
}
});
function slide(slideNum){
// =========================== Chart Dimensions ===========================
// set line chart dimensions
var margin = {top: 50, right: 150, bottom: 50, left: 50}
, width = 800 - margin.left - margin.right
, height = 500 - margin.top - margin.bottom;
// add svg canvas dimensions
var svg = d3.select("#mainsvgchart")
.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 + ")");
// load data
d3.csv("emission3.csv").then(function(data) {
// Add graph title
svg.append("text")
.attr("x", (width / 2))
.attr("y", 0 - (margin.top/2))
.attr("text-anchor", "middle")
.style("font-size", "18px")
.text("Annual CO2 Emissions 1960-2016");
// Add affordance
svg.append("text")
.attr("x", (width / 2))
.attr("y", 0 - (margin.top / 2)+20)
.attr("text-anchor", "middle")
.style("font-size", "10px")
.text("Hover over graph for more details");
// =========================== Axes ===========================
// Create X axis
var x = d3.scaleLinear()
.domain([1960, 2017])
.range([ 0, width]);
// Add X axis to svg
svg.append("g")
.attr("transform", "translate( 0," + height + ")")
.call(d3.axisBottom(x).tickFormat(d3.format("d")));
// Add label to X axis
svg.append("text")
.attr("transform", "translate(" + (width/2) + " ," + (height + (margin.top)) + ")")
// .attr("dy", "1em")
.style("text-anchor", "middle")
.text("Year");
// Create Y axis
var y = d3.scaleLinear()
.domain([0, 35])
.range([ height, 0]);
// Add Y axis to svg
svg.append("g")
.attr("transform", "translate(0, 0)")
.call(d3.axisLeft(y).tickFormat(d3.format("d")));
// Add label to y axis
svg.append("text")
.attr("transform", "rotate(-90)")
.attr("x", 0 - (height / 2))
.attr("y", 0 - margin.left)
.attr("dy", "1em")
.style("text-anchor", "middle")
.text("CO2 Emissions - billion metric tons");
// =========================== Gridlines ===========================
// X axis gridllines (vertical)
function make_x_gridlines() {
return d3.axisBottom(x)
.ticks(11)
}
// Y axis gridllines (horizontal)
function make_y_gridlines() {
return d3.axisLeft(y)
.ticks(11)
}
// Add the X gridlines
svg.append("g")
.attr("class", "grid")
.attr("transform", "translate(0," + height + ")")
.call(make_x_gridlines()
.tickSize(-height)
.tickFormat("")
)
// Add the Y gridlines
svg.append("g")
.attr("class", "grid")
.call(make_y_gridlines()
.tickSize(-width)
.tickFormat("")
)
// =========================== Legend ===========================
// legend keys
var keys = ["Global", "Europe", "North America", "East Asia"];
// set colors to legend keys
var color = d3.scaleOrdinal().domain(keys).range(["#5daf4c", "#004cff", "#FF6A33", "#D033FF"]);
// Add one dot in the legend for each name.
var size = 10;
svg.selectAll("rectss")
.data(keys)
.enter()
.append("rect")
.attr("x", width + 30)
.attr("y", function(d,i){ return 200 + i*25} ) // 100 is where the first dot appears. 25 is the distance between dots
.attr("width", size)
.attr("height", size)
.style("fill", function(d){ return color(d)});
// Add one dot in the legend for each name.
svg.selectAll("labels")
.data(keys)
.enter()
.append("text")
.attr("x", width + 30+ size*1.4)
.attr("y", function(d,i){ return 200 + i*(25) + (size/2)+1}) // 100 is where the first dot appears. 25 is the distance between dots
.style("fill", function(d){ return color(d)})
.text(function(d){ return d})
.attr("text-anchor", "left")
.style("alignment-baseline", "middle");
// =========================== Add data lines to graph ===========================
if(slideNum == 1) {
var yearthreshold = 1975;
var path = svg.append("path")
.datum(data.filter(function(d) {return d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.WLD); }))
.attr("fill", "none")
.attr("stroke", "#5daf4c")
.attr("stroke-width", 3);
// Animate global line
var pathLength = path.node().getTotalLength();
path.attr("stroke-dasharray", pathLength)
.attr("stroke-dashoffset", pathLength)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
// North america data
var pathNA = svg.append("path")
.datum(data.filter(function(d) {return d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.NAC); }))
.attr("fill", "none")
.attr("stroke", "#FF6A33")
.attr("stroke-width", 3);
// Animate NA line
var pathlengthNA = pathNA.node().getTotalLength();
pathNA.attr("stroke-dasharray", pathlengthNA)
.attr("stroke-dashoffset", pathlengthNA)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
// Europe data
var pathEU = svg.append("path")
.datum(data.filter(function(d) {return d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.ECS); }))
.attr("fill", "none")
.attr("stroke", "#004cff")
.attr("stroke-width", 3);
// Animate EU line
var pathlengthEU = pathEU.node().getTotalLength();
pathEU.attr("stroke-dasharray", pathlengthEU)
.attr("stroke-dashoffset", pathlengthEU)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
// Asia data
var pathasia = svg.append("path")
.datum(data.filter(function(d) {return d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.EAS); }))
.attr("fill", "none")
.attr("stroke", "#D033FF")
.attr("stroke-width", 3);
// Animate asia line
var pathlengthasia = pathasia.node().getTotalLength();
pathasia.attr("stroke-dasharray", pathlengthasia)
.attr("stroke-dashoffset", pathlengthasia)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
}
if(slideNum == 2) {
// var yearthreshold_prev = yearthreshold ;
var pathprev = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 1975;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.WLD); }))
.attr("fill", "none")
.attr("stroke", "#5daf4c")
.attr("stroke-width", 3);
pathprev
var yearthreshold = 1983;
var path = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 1975 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.WLD); }))
.attr("fill", "none")
.attr("stroke", "#4CAF50")
.attr("stroke-width", 3);
// Animate line
var pathLength = path.node().getTotalLength();
path.attr("stroke-dasharray", pathLength)
.attr("stroke-dashoffset", pathLength)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
// NA data
var pathNA = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 1975;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.NAC); }))
.attr("fill", "none")
.attr("stroke", "#FF6A33")
.attr("stroke-width", 3);
// Europe data
var pathEU = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 1975;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.ECS); }))
.attr("fill", "none")
.attr("stroke", "#004cff")
.attr("stroke-width", 3);
// Asia data
var pathasia = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 1975;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.EAS); }))
.attr("fill", "none")
.attr("stroke", "#D033FF")
.attr("stroke-width", 3);
pathNA;
pathEU;
pathasia;
// NA line animted
var pathNA_now = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 1975 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.NAC); }))
.attr("fill", "none")
.attr("stroke", "#FF6A33")
.attr("stroke-width", 3);
// Animate NA line
var pathlengthNA = pathNA_now.node().getTotalLength();
pathNA_now.attr("stroke-dasharray", pathlengthNA)
.attr("stroke-dashoffset", pathlengthNA)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
// EU line to animte
var pathEU_now = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 1975 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.ECS); }))
.attr("fill", "none")
.attr("stroke", "#004cff")
.attr("stroke-width", 3);
// Animate EU line
var pathlengthEU = pathEU_now.node().getTotalLength();
pathEU_now.attr("stroke-dasharray", pathlengthEU)
.attr("stroke-dashoffset", pathlengthEU)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
// asia line to animte
var pathasia_now = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 1975 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.EAS); }))
.attr("fill", "none")
.attr("stroke", "#D033FF")
.attr("stroke-width", 3);
// Animate asia line
var pathlengthasia = pathasia_now.node().getTotalLength();
pathasia_now.attr("stroke-dasharray", pathlengthasia)
.attr("stroke-dashoffset", pathlengthasia)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
}
if(slideNum == 3) {
var yearthreshold = 1994;
var pathprev = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 1983;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.WLD); }))
.attr("fill", "none")
.attr("stroke", "#5daf4c")
.attr("stroke-width", 3);
pathprev
var path = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 1983 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.WLD); }))
.attr("fill", "none")
.attr("stroke", "#4CAF50")
.attr("stroke-width", 3);
// path
// Animate line
var pathLength = path.node().getTotalLength();
path.attr("stroke-dasharray", pathLength)
.attr("stroke-dashoffset", pathLength)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
// NA data
var pathNA = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 1983;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.NAC); }))
.attr("fill", "none")
.attr("stroke", "#FF6A33")
.attr("stroke-width", 3);
// Europe data
var pathEU = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 1983;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.ECS); }))
.attr("fill", "none")
.attr("stroke", "#004cff")
.attr("stroke-width", 3);
// Asia data
var pathasia = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 1983;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.EAS); }))
.attr("fill", "none")
.attr("stroke", "#D033FF")
.attr("stroke-width", 3);
pathNA;
pathEU;
pathasia;
// NA line animted
var pathNA_now = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 1983 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.NAC); }))
.attr("fill", "none")
.attr("stroke", "#FF6A33")
.attr("stroke-width", 3);
// Animate NA line
var pathlengthNA = pathNA_now.node().getTotalLength();
pathNA_now.attr("stroke-dasharray", pathlengthNA)
.attr("stroke-dashoffset", pathlengthNA)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
// EU line to animte
var pathEU_now = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 1983 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.ECS); }))
.attr("fill", "none")
.attr("stroke", "#004cff")
.attr("stroke-width", 3);
// Animate EU line
var pathlengthEU = pathEU_now.node().getTotalLength();
pathEU_now.attr("stroke-dasharray", pathlengthEU)
.attr("stroke-dashoffset", pathlengthEU)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
// asia line to animte
var pathasia_now = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 1983 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.EAS); }))
.attr("fill", "none")
.attr("stroke", "#D033FF")
.attr("stroke-width", 3);
// Animate asia line
var pathlengthasia = pathasia_now.node().getTotalLength();
pathasia_now.attr("stroke-dasharray", pathlengthasia)
.attr("stroke-dashoffset", pathlengthasia)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
}
if(slideNum == 4) {
var yearthreshold = 1999;
var pathprev = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 1994;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.WLD); }))
.attr("fill", "none")
.attr("stroke", "#5daf4c")
.attr("stroke-width", 3);
pathprev
var path = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 1994 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.WLD); }))
.attr("fill", "none")
.attr("stroke", "#4CAF50")
.attr("stroke-width", 3);
// Animate line
var pathLength = path.node().getTotalLength();
path.attr("stroke-dasharray", pathLength)
.attr("stroke-dashoffset", pathLength)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
// NA data
var pathNA = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 1994;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.NAC); }))
.attr("fill", "none")
.attr("stroke", "#FF6A33")
.attr("stroke-width", 3);
// Europe data
var pathEU = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 1994;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.ECS); }))
.attr("fill", "none")
.attr("stroke", "#004cff")
.attr("stroke-width", 3);
// Asia data
var pathasia = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 1994;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.EAS); }))
.attr("fill", "none")
.attr("stroke", "#D033FF")
.attr("stroke-width", 3);
pathNA;
pathEU;
pathasia;
// NA line animted
var pathNA_now = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 1994 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.NAC); }))
.attr("fill", "none")
.attr("stroke", "#FF6A33")
.attr("stroke-width", 3);
// Animate NA line
var pathlengthNA = pathNA_now.node().getTotalLength();
pathNA_now.attr("stroke-dasharray", pathlengthNA)
.attr("stroke-dashoffset", pathlengthNA)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
// EU line to animte
var pathEU_now = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 1994 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.ECS); }))
.attr("fill", "none")
.attr("stroke", "#004cff")
.attr("stroke-width", 3);
// Animate EU line
var pathlengthEU = pathEU_now.node().getTotalLength();
pathEU_now.attr("stroke-dasharray", pathlengthEU)
.attr("stroke-dashoffset", pathlengthEU)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
// asia line to animte
var pathasia_now = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 1994 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.EAS); }))
.attr("fill", "none")
.attr("stroke", "#D033FF")
.attr("stroke-width", 3);
// Animate asia line
var pathlengthasia = pathasia_now.node().getTotalLength();
pathasia_now.attr("stroke-dasharray", pathlengthasia)
.attr("stroke-dashoffset", pathlengthasia)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
}
if(slideNum == 5) {
var yearthreshold = 2009;
var pathprev = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 1999;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.WLD); }))
.attr("fill", "none")
.attr("stroke", "#5daf4c")
.attr("stroke-width", 3);
pathprev
var path = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 1999 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.WLD); }))
.attr("fill", "none")
.attr("stroke", "#4CAF50")
.attr("stroke-width", 3);
// path
// Animate line
var pathLength = path.node().getTotalLength();
path.attr("stroke-dasharray", pathLength)
.attr("stroke-dashoffset", pathLength)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
// NA data
var pathNA = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 1999;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.NAC); }))
.attr("fill", "none")
.attr("stroke", "#FF6A33")
.attr("stroke-width", 3);
// Europe data
var pathEU = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 1999;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.ECS); }))
.attr("fill", "none")
.attr("stroke", "#004cff")
.attr("stroke-width", 3);
// Asia data
var pathasia = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 1999;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.EAS); }))
.attr("fill", "none")
.attr("stroke", "#D033FF")
.attr("stroke-width", 3);
pathNA;
pathEU;
pathasia;
// NA line animted
var pathNA_now = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 1999 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.NAC); }))
.attr("fill", "none")
.attr("stroke", "#FF6A33")
.attr("stroke-width", 3);
// Animate NA line
var pathlengthNA = pathNA_now.node().getTotalLength();
pathNA_now.attr("stroke-dasharray", pathlengthNA)
.attr("stroke-dashoffset", pathlengthNA)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
// EU line to animte
var pathEU_now = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 1999 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.ECS); }))
.attr("fill", "none")
.attr("stroke", "#004cff")
.attr("stroke-width", 3);
// Animate EU line
var pathlengthEU = pathEU_now.node().getTotalLength();
pathEU_now.attr("stroke-dasharray", pathlengthEU)
.attr("stroke-dashoffset", pathlengthEU)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
// asia line to animte
var pathasia_now = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 1999 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.EAS); }))
.attr("fill", "none")
.attr("stroke", "#D033FF")
.attr("stroke-width", 3);
// Animate asia line
var pathlengthasia = pathasia_now.node().getTotalLength();
pathasia_now.attr("stroke-dasharray", pathlengthasia)
.attr("stroke-dashoffset", pathlengthasia)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
}
if(slideNum == 6) {
var yearthreshold = 2016;
var pathprev = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 2009;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.WLD); }))
.attr("fill", "none")
.attr("stroke", "#5daf4c")
.attr("stroke-width", 3);
pathprev
var path = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 2009 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.WLD); }))
.attr("fill", "none")
.attr("stroke", "#4CAF50")
.attr("stroke-width", 3);
// Animate line
var pathLength = path.node().getTotalLength();
path.attr("stroke-dasharray", pathLength)
.attr("stroke-dashoffset", pathLength)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
// NA data
var pathNA = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 2009;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.NAC); }))
.attr("fill", "none")
.attr("stroke", "#FF6A33")
.attr("stroke-width", 3);
// Europe data
var pathEU = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 2009;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.ECS); }))
.attr("fill", "none")
.attr("stroke", "#004cff")
.attr("stroke-width", 3);
// Asia data
var pathasia = svg.append("path")
.datum(data.filter(function(d) {return d.year <= 2009;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.EAS); }))
.attr("fill", "none")
.attr("stroke", "#D033FF")
.attr("stroke-width", 3);
pathNA;
pathEU;
pathasia;
// NA line animted
var pathNA_now = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 2009 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.NAC); }))
.attr("fill", "none")
.attr("stroke", "#FF6A33")
.attr("stroke-width", 3);
// Animate NA line
var pathlengthNA = pathNA_now.node().getTotalLength();
pathNA_now.attr("stroke-dasharray", pathlengthNA)
.attr("stroke-dashoffset", pathlengthNA)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
// EU line to animte
var pathEU_now = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 2009 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.ECS); }))
.attr("fill", "none")
.attr("stroke", "#004cff")
.attr("stroke-width", 3);
// Animate EU line
var pathlengthEU = pathEU_now.node().getTotalLength();
pathEU_now.attr("stroke-dasharray", pathlengthEU)
.attr("stroke-dashoffset", pathlengthEU)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
// asia line to animte
var pathasia_now = svg.append("path")
.datum(data.filter(function(d) {return d.year >= 2009 && d.year <= yearthreshold;}))
.attr("d", d3.line()
.x(function(d) { return x(d.year); })
.y(function(d) { return y(d.EAS); }))
.attr("fill", "none")
.attr("stroke", "#D033FF")
.attr("stroke-width", 3);
// Animate asia line
var pathlengthasia = pathasia_now.node().getTotalLength();
pathasia_now.attr("stroke-dasharray", pathlengthasia)
.attr("stroke-dashoffset", pathlengthasia)
.transition()
.duration(4000)
.ease(d3.easeSin)
.attr("stroke-dashoffset", 0);
}
// =========================== Annotations/Highlight events on graph ===========================
if (slideNum >= 1)
{
// source: https://stackoverflow.com/questions/24784302/wrapping-text-in-d3/24785497
function wrap(text, width) {
text.each(function () {
var text = d3.select(this),
words = text.text().split(/\s+/).reverse(),
word,
line = [],
lineNumber = 0,
lineHeight = 1.1, // ems
x = text.attr("x"),
y = text.attr("y"),
dy = 0, //parseFloat(text.attr("dy")),
tspan = text.text(null)
.append("tspan")
.attr("x", x)
.attr("y", y)
.attr("dy", dy + "em");
while (word = words.pop()) {
line.push(word);
tspan.text(line.join(" "));
if (tspan.node().getComputedTextLength() > width) {
line.pop();
tspan.text(line.join(" "));
line = [word];
tspan = text.append("tspan")
.attr("x", x)
.attr("y", y)
.attr("dy", ++lineNumber * lineHeight + dy + "em")
.text(word);
}
}
});
}
// annotation 1
var left = x(1973);
var right = x(1975);
var wid = right - left;
svg.append("rect")
.attr("x", left)
.attr("width", wid)
.attr("height", height)
.style("opacity", 0.5)
.style("fill", "#F5FF33");
svg.append("text")
.attr("x", x(1974))
.attr("y", y(23))
.attr("text-anchor", "middle")
.style("font-size", "14px")
.text("Oil Crisis:")