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@larsenmtl

larsenmtl/README.md

Created June 19, 2016 16:54
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Cycle Diagram
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README.md
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index.html
<!DOCTYPE html>
<html>
<head>
<script data-require="[email protected]" data-semver="3.5.3" src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.3/d3.js"></script>
<script src="//labratrevenge.com/d3-tip/javascripts/d3.tip.v0.6.3.js"></script>
<style>
body {
font: 12px sans-serif;
}
.d3-tip {
line-height: 1;
font-weight: bold;
padding: 12px;
background: rgba(0, 0, 0, 0.8);
color: #fff;
border-radius: 2px;
pointer-events: none;
}
/* Creates a small triangle extender for the tooltip */
.d3-tip:after {
box-sizing: border-box;
display: inline;
font-size: 10px;
width: 100%;
line-height: 1;
color: rgba(0, 0, 0, 0.8);
position: absolute;
pointer-events: none;
}
/* Westward tooltips */
.d3-tip.w:after {
content: "\25B6";
margin: -4px 0 0 -1px;
top: 50%;
left: 100%;
}
</style>
</head>
<body>
<script>
var data = [{
label: 'one',
children: ['all', 'the', 'rain']
}, {
label: 'two',
children: ['fails', 'mainly']
}, {
label: 'three',
children: ['on', 'the', 'plains']
}, {
label: 'four',
children: ['now', 'is', 'the']
}, {
label: 'five',
children: ['time', 'for', 'all']
}, {
label: 'seven',
children: ['good', 'men', 'to']
}, {
label: 'eight',
children: ['come', 'to', 'the']
}, {
label: 'nine',
children: ['aid', 'of their', 'country']
}],
width = 500,
height = 500,
c = Math.min(width, height) / 2,
ro = Math.min(width, height) / 2 - (c * .3),
ri = Math.min(width, height) / 2 - (c * .6),
a = (Math.PI * 2) / data.length,
colors = d3.scale.category10();
var tip = d3.tip()
.attr('class', 'd3-tip')
.direction('w')
.html(function(d) {
return d.children.join(" ")
});
var arc = d3.svg.arc()
.innerRadius(ri)
.outerRadius(ro);
var svg = d3.select('body')
.append('svg')
.attr('width', 500)
.attr('height', 500)
.call(tip);
svg = svg.append('g')
.attr('transform', 'translate(' + c + ',' + c + ')')
var arcs = svg.selectAll('.cycle')
.data(data);
var arcsG = arcs.enter()
.append('g')
.attr('class', 'cycle');
arcsG
.append("path")
.attr('class', 'cycle')
.style('fill', function(d, i) {
return colors(i);
})
.attr("id", function(d) {
return "path" + d.label;
})
.attr("d", function(d, i) {
arc.startAngle(a * i);
arc.endAngle(a * (i + 1));
d.centroid = arc.centroid();
return arc();
})
.on('mouseover', tip.show)
.on('mouseout', tip.hide);
arcsG
.append("text")
.attr("transform", function(d) {
return "translate(" + d.centroid + ")";
})
.text(function(d) {
return d.label;
})
.style("fill", "white")
.style("text-anchor", "middle")
.style("alignment-baseline", "middle")
.style("pointer-events", "none");
// draw arrow heads last so they end up on top
arcs
.enter()
.append('polygon')
.attr("points", function(d, i) {
var sta = a * i,
spa = a * (i + 1);
// determine points for arrowhead
arrowHead = [Math.cos(spa - Math.PI / 2) * (ri - 15), Math.sin(spa - Math.PI / 2) * (ri - 15)] + ' ';
arrowHead += [Math.cos(spa - Math.PI / 2) * (ro + 15), Math.sin(spa - Math.PI / 2) * (ro + 15)] + ' ';
arrowHead += [Math.cos(spa - Math.PI / 2 + ((spa - sta) / 4)) * (ri + (ro - ri) / 2), Math.sin(spa - Math.PI / 2 + ((spa - sta) / 4)) * (ri + (ro - ri) / 2)];
return arrowHead;
})
.style("fill", function(d, i) {
return colors(i);
})
.style("stroke", function(d, i) {
return colors(i);
});
</script>
</body>
</html>
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