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arnaudsj/.block

Last active August 16, 2019 21:15
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fresh block
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.block
license: mit
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index.html
<!DOCTYPE html>
<head>
<meta charset="utf-8">
<script src="https://d3js.org/d3.v5.js"></script>
<script src="https://d3js.org/d3-selection.v1.min.js"></script>
<script src="https://d3js.org/d3-array.v1.min.js"></script>
<script src="https://d3js.org/d3-geo.v1.min.js"></script>
<style>
body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
</style>
</head>
<body>
<script>
// // Feel free to change or delete any of the code you see in this editor!
var svg = d3.select("body").append("svg")
.attr("width", 960)
.attr("height", 500)
// svg.append("text")
// .text("Edit the code below to change me!")
// .attr("y", 200)
// .attr("x", 120)
// .attr("font-size", 36)
// .attr("font-family", "monospace")
var width = 960,
height = 600;
var projection = d3.geo.albersUsa()
.scale(1100)
.translate([width / 2, height / 2]);
var path = d3.geo.path()
.projection(projection);
var svg = d3.select("#map-container").append("svg")
.attr("width", width)
.attr("height", height);
var g = svg.append("g");
g.append( "rect" )
.attr("width",width)
.attr("height",height)
.attr("fill","white")
.attr("opacity",0)
.on("mouseover",function(){
hoverData = null;
if ( probe ) probe.style("display","none");
})
var map = g.append("g")
.attr("id","map");
var probe,
hoverData;
var dateScale, sliderScale, slider;
var format = d3.format(",");
var months = ["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"],
months_full = ["January","February","March","April","May","June","July","August","September","October","November","December"],
orderedColumns = [],
currentFrame = 0,
interval,
frameLength = 500,
isPlaying = false;
var sliderMargin = 65;
function circleSize(d){
return Math.sqrt( .02 * Math.abs(d) );
};
d3.json("json/states.json", function(error, us) {
map.selectAll("path")
.data(topojson.feature(us, us.objects.states).features)
.enter()
.append("path")
.attr("vector-effect","non-scaling-stroke")
.attr("class","land")
.attr("d", path);
map.append("path")
.datum(topojson.mesh(us, us.objects.states, function(a, b) { return a !== b; }))
.attr("class", "state-boundary")
.attr("vector-effect","non-scaling-stroke")
.attr("d", path);
probe = d3.select("#map-container").append("div")
.attr("id","probe");
d3.select("body")
.append("div")
.attr("id","loader")
.style("top",d3.select("#play").node().offsetTop + "px")
.style("height",d3.select("#date").node().offsetHeight + d3.select("#map-container").node().offsetHeight + "px")
d3.csv("csv/jobs.csv",function(data){
var first = data[0];
// get columns
for ( var mug in first ){
if ( mug != "CITY" && mug != "LAT" && mug != "LON" ){
orderedColumns.push(mug);
}
}
orderedColumns.sort( sortColumns );
// draw city points
for ( var i in data ){
var projected = projection([ parseFloat(data[i].LON), parseFloat(data[i].LAT) ])
map.append("circle")
.datum( data[i] )
.attr("cx",projected[0])
.attr("cy",projected[1])
.attr("r",1)
.attr("vector-effect","non-scaling-stroke")
.on("mousemove",function(d){
hoverData = d;
setProbeContent(d);
probe
.style( {
"display" : "block",
"top" : (d3.event.pageY - 80) + "px",
"left" : (d3.event.pageX + 10) + "px"
})
})
.on("mouseout",function(){
hoverData = null;
probe.style("display","none");
})
}
createLegend();
dateScale = createDateScale(orderedColumns).range([0,500]);
createSlider();
d3.select("#play")
.attr("title","Play animation")
.on("click",function(){
if ( !isPlaying ){
isPlaying = true;
d3.select(this).classed("pause",true).attr("title","Pause animation");
animate();
} else {
isPlaying = false;
d3.select(this).classed("pause",false).attr("title","Play animation");
clearInterval( interval );
}
});
drawMonth( orderedColumns[currentFrame] ); // initial map
window.onresize = resize;
resize();
d3.select("#loader").remove();
})
});
function drawMonth(m,tween){
var circle = map.selectAll("circle")
.sort(function(a,b){
// catch nulls, and sort circles by size (smallest on top)
if ( isNaN(a[m]) ) a[m] = 0;
if ( isNaN(b[m]) ) b[m] = 0;
return Math.abs(b[m]) - Math.abs(a[m]);
})
.attr("class",function(d){
return d[m] > 0 ? "gain" : "loss";
})
if ( tween ){
circle
.transition()
.ease("linear")
.duration(frameLength)
.attr("r",function(d){
return circleSize(d[m])
});
} else {
circle.attr("r",function(d){
return circleSize(d[m])
});
}
d3.select("#date p#month").html( monthLabel(m) );
if (hoverData){
setProbeContent(hoverData);
}
}
function animate(){
interval = setInterval( function(){
currentFrame++;
if ( currentFrame == orderedColumns.length ) currentFrame = 0;
d3.select("#slider-div .d3-slider-handle")
.style("left", 100*currentFrame/orderedColumns.length + "%" );
slider.value(currentFrame)
drawMonth( orderedColumns[ currentFrame ], true );
if ( currentFrame == orderedColumns.length - 1 ){
isPlaying = false;
d3.select("#play").classed("pause",false).attr("title","Play animation");
clearInterval( interval );
return;
}
},frameLength);
}
function createSlider(){
sliderScale = d3.scale.linear().domain([0,orderedColumns.length-1]);
var val = slider ? slider.value() : 0;
slider = d3.slider()
.scale( sliderScale )
.on("slide",function(event,value){
if ( isPlaying ){
clearInterval(interval);
}
currentFrame = value;
drawMonth( orderedColumns[value], d3.event.type != "drag" );
})
.on("slideend",function(){
if ( isPlaying ) animate();
d3.select("#slider-div").on("mousemove",sliderProbe)
})
.on("slidestart",function(){
d3.select("#slider-div").on("mousemove",null)
})
.value(val);
d3.select("#slider-div").remove();
d3.select("#slider-container")
.append("div")
.attr("id","slider-div")
.style("width",dateScale.range()[1] + "px")
.on("mousemove",sliderProbe)
.on("mouseout",function(){
d3.select("#slider-probe").style("display","none");
})
.call( slider );
d3.select("#slider-div a").on("mousemove",function(){
d3.event.stopPropagation();
})
var sliderAxis = d3.svg.axis()
.scale( dateScale )
.tickValues( dateScale.ticks(orderedColumns.length).filter(function(d,i){
// ticks only for beginning of each year, plus first and last
return d.getMonth() == 0 || i == 0 || i == orderedColumns.length-1;
}))
.tickFormat(function(d){
// abbreviated year for most, full month/year for the ends
if ( d.getMonth() == 0 ) return "'" + d.getFullYear().toString().substr(2);
return months[d.getMonth()] + " " + d.getFullYear();
})
.tickSize(10)
d3.select("#axis").remove();
d3.select("#slider-container")
.append("svg")
.attr("id","axis")
.attr("width",dateScale.range()[1] + sliderMargin*2 )
.attr("height",25)
.append("g")
.attr("transform","translate(" + (sliderMargin+1) + ",0)")
.call(sliderAxis);
d3.select("#axis > g g:first-child text").attr("text-anchor","end").style("text-anchor","end");
d3.select("#axis > g g:last-of-type text").attr("text-anchor","start").style("text-anchor","start");
}
function createLegend(){
var legend = g.append("g").attr("id","legend").attr("transform","translate(560,10)");
legend.append("circle").attr("class","gain").attr("r",5).attr("cx",5).attr("cy",10)
legend.append("circle").attr("class","loss").attr("r",5).attr("cx",5).attr("cy",30)
legend.append("text").text("jobs gained").attr("x",15).attr("y",13);
legend.append("text").text("jobs lost").attr("x",15).attr("y",33);
var sizes = [ 10000, 100000, 250000 ];
for ( var i in sizes ){
legend.append("circle")
.attr( "r", circleSize( sizes[i] ) )
.attr( "cx", 80 + circleSize( sizes[sizes.length-1] ) )
.attr( "cy", 2 * circleSize( sizes[sizes.length-1] ) - circleSize( sizes[i] ) )
.attr("vector-effect","non-scaling-stroke");
legend.append("text")
.text( (sizes[i] / 1000) + "K" + (i == sizes.length-1 ? " jobs" : "") )
.attr( "text-anchor", "middle" )
.attr( "x", 80 + circleSize( sizes[sizes.length-1] ) )
.attr( "y", 2 * ( circleSize( sizes[sizes.length-1] ) - circleSize( sizes[i] ) ) + 5 )
.attr( "dy", 13)
}
}
function setProbeContent(d){
var val = d[ orderedColumns[ currentFrame ] ],
m_y = getMonthYear( orderedColumns[ currentFrame ] ),
month = months_full[ months.indexOf(m_y[0]) ];
var html = "<strong>" + d.CITY + "</strong><br/>" +
format( Math.abs( val ) ) + " jobs " + ( val < 0 ? "lost" : "gained" ) + "<br/>" +
"<span>" + month + " " + m_y[1] + "</span>";
probe
.html( html );
}
function sliderProbe(){
var d = dateScale.invert( ( d3.mouse(this)[0] ) );
d3.select("#slider-probe")
.style( "left", d3.mouse(this)[0] + sliderMargin + "px" )
.style("display","block")
.select("p")
.html( months[d.getMonth()] + " " + d.getFullYear() )
}
function resize(){
var w = d3.select("#container").node().offsetWidth,
h = window.innerHeight - 80;
var scale = Math.max( 1, Math.min( w/width, h/height ) );
svg
.attr("width",width*scale)
.attr("height",height*scale);
g.attr("transform","scale(" + scale + "," + scale + ")");
d3.select("#map-container").style("width",width*scale + "px");
dateScale.range([0,500 + w-width]);
createSlider();
}
function sortColumns(a,b){
// [month,year]
var monthA = a.split("-"),
monthB = b.split("-");
// Y2K !!!
// 99 becomes 9; 2000+ becomes 11+
if ( monthA[1] < 90 ) monthA[1] = parseInt(monthA[1]) + 11;
else monthA[1] = parseInt(monthA[1]) - 90;
if ( monthB[1] < 90 ) monthB[1] = parseInt(monthB[1]) + 11;
else monthB[1] = parseInt(monthB[1]) - 90;
// turn year+month into a sortable number
return ( 100*parseInt(monthA[1]) + months.indexOf(monthA[0]) ) - ( 100*parseInt(monthB[1]) + months.indexOf(monthB[0]) );
}
function createDateScale( columns ){
var start = getMonthYear( columns[0] ),
end = getMonthYear( columns[ columns.length-1 ] );
return d3.time.scale()
.domain( [ new Date( start[1], months.indexOf( start[0] ) ), new Date( end[1], months.indexOf( end[0] ) ) ] );
}
function getMonthYear(column){
var m_y = column.split("-");
var year = parseInt( m_y[1] );
if ( year > 90 ) year += 1900;
else year += 2000;
return [ m_y[0], year ];
}
function monthLabel( m ){
var m_y = getMonthYear(m);
return "<span>" + m_y[0].toUpperCase() + "</span> " + m_y[1];
}
</script>
</body>
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