d3-chord-diagrams/trade-a.html at master · blehman/d3-chord-diagrams

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<!DOCTYPE html>

<html>

<head>

<style>

#tooltip {

color: white;

opacity: .9;

background: #333;

padding: 5px;

border: 1px solid lightgrey;

border-radius: 5px;

position: absolute;

z-index: 10;

visibility: hidden;

white-space: nowrap;

pointer-events: none;

}

#circle circle {

fill: none;

pointer-events: all;

}

path.group {

fill-opacity: .8;

}

path.chord {

fill-opacity: .8;

stroke: #000;

stroke-width: .25px;

}

#circle:hover path.fade {

display: none;

}

</style>

</head>

<body>

//*******************************************************************

// CREATE MATRIX AND MAP

//*******************************************************************

d3.csv('data/trade-a.csv', function (error, data) {

var mpr = chordMpr(data);

mpr

.addValuesToMap('importer1')

.addValuesToMap('importer2')

.setFilter(function (row, a, b) {

return (row.importer1 === a.name && row.importer2 === b.name) ||

(row.importer1 === b.name && row.importer2 === a.name)

})

.setAccessor(function (recs, a, b) {

if (!recs[0]) return 0;

return recs[0].importer1 === a.name ? +recs[0].flow1 : +recs[0].flow2;

});

drawChords(mpr.getMatrix(), mpr.getMap());

});

//*******************************************************************

// DRAW THE CHORD DIAGRAM

//*******************************************************************

function drawChords (matrix, mmap) {

var w = 980, h = 800, r1 = h / 2, r0 = r1 - 110;

var fill = d3.scale.ordinal()

.range(['#c7b570','#c6cdc7','#335c64','#768935','#507282','#5c4a56','#aa7455','#574109','#837722','#73342d','#0a5564','#9c8f57','#7895a4','#4a5456','#b0a690','#0a3542',]);

var chord = d3.layout.chord()

.padding(.02)

.sortSubgroups(d3.descending)

.sortChords(d3.descending);

var arc = d3.svg.arc()

.innerRadius(r0)

.outerRadius(r0 + 20);

var svg = d3.select("body").append("svg:svg")

.attr("width", w)

.attr("height", h)

.append("svg:g")

.attr("id", "circle")

.attr("transform", "translate(" + w / 2 + "," + h / 2 + ")");

svg.append("circle")

.attr("r", r0 + 20);

var rdr = chordRdr(matrix, mmap);

chord.matrix(matrix);

var g = svg.selectAll("g.group")

.data(chord.groups())

.enter().append("svg:g")

.attr("class", "group")

.on("mouseover", mouseover)

.on("mouseout", function (d) { d3.select("#tooltip").style("visibility", "hidden") });

g.append("svg:path")

.style("stroke", "black")

.style("fill", function(d) { return fill(rdr(d).gname); })

.attr("d", arc);

g.append("svg:text")

.each(function(d) { d.angle = (d.startAngle + d.endAngle) / 2; })

.attr("dy", ".35em")

.style("font-family", "helvetica, arial, sans-serif")

.style("font-size", "9px")

.attr("text-anchor", function(d) { return d.angle > Math.PI ? "end" : null; })

.attr("transform", function(d) {

return "rotate(" + (d.angle * 180 / Math.PI - 90) + ")"

+ "translate(" + (r0 + 26) + ")"

+ (d.angle > Math.PI ? "rotate(180)" : "");

})

.text(function(d) { return rdr(d).gname; });

var chordPaths = svg.selectAll("path.chord")

.data(chord.chords())

.enter().append("svg:path")

.attr("class", "chord")

.style("stroke", function(d) { return d3.rgb(fill(rdr(d).sname)).darker(); })

.style("fill", function(d) { return fill(rdr(d).sname); })

.attr("d", d3.svg.chord().radius(r0))

.on("mouseover", function (d) {

d3.select("#tooltip")

.style("visibility", "visible")

.html(chordTip(rdr(d)))

.style("top", function () { return (d3.event.pageY - 170)+"px"})

.style("left", function () { return (d3.event.pageX - 100)+"px";})

})

.on("mouseout", function (d) { d3.select("#tooltip").style("visibility", "hidden") });

function chordTip (d) {

var p = d3.format(".1%"), q = d3.format(",.2f")

return "Chord Info:<br/>"

+ d.sname + " imports from " + d.tname

+ ": $" + q(d.svalue) + "M<br/>"

+ p(d.svalue/d.stotal) + " of " + d.sname + "'s Total ($" + q(d.stotal) + "M)<br/>"

+ p(d.svalue/d.mtotal) + " of Matrix Total ($" + q(d.mtotal) + "M)<br/>"

+ "<br/>"

+ d.tname + " imports from " + d.sname

+ ": $" + q(d.tvalue) + "M<br/>"

+ p(d.tvalue/d.ttotal) + " of " + d.tname + "'s Total ($" + q(d.ttotal) + "M)<br/>"

+ p(d.tvalue/d.mtotal) + " of Matrix Total ($" + q(d.mtotal) + "M)";

}

function groupTip (d) {

var p = d3.format(".1%"), q = d3.format(",.2f")

return "Group Info:<br/>"

+ d.gname + " : " + q(d.gvalue) + "M<br/>"

+ p(d.gvalue/d.mtotal) + " of Matrix Total (" + q(d.mtotal) + "M)"

}

function mouseover(d, i) {

d3.select("#tooltip")

.style("visibility", "visible")

.html(groupTip(rdr(d)))

.style("top", function () { return (d3.event.pageY - 80)+"px"})

.style("left", function () { return (d3.event.pageX - 130)+"px";})

chordPaths.classed("fade", function(p) {

return p.source.index != i

&& p.target.index != i;

});

}

</script>

</body>

</html>

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