Force layout (x axis).
From D3 in Depth book by Peter Cook.
license: gpl-3.0 | |
height: 220 | |
border: no |
Force layout (x axis).
From D3 in Depth book by Peter Cook.
<!-- <!DOCTYPE html> --> | |
<meta charset="utf-8"> | |
<head> | |
<title>Force layout (x axis)</title> | |
</head> | |
<style> | |
circle { | |
fill: orange; | |
} | |
</style> | |
<body> | |
<div id="content"> | |
<svg width="700" height="200"> | |
<g transform="translate(50, 100)"></g> | |
</svg> | |
</div> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/4.2.2/d3.min.js"></script> | |
<script> | |
var width = 600, height = 400; | |
var colorScale = ['orange', 'lightblue', '#B19CD9']; | |
var xScale = d3.scaleLinear().domain([0, 1]).range([0, 600]); | |
var numNodes = 40; | |
var nodes = d3.range(numNodes).map(function(d, i) { | |
return { | |
radius: Math.random() * 25, | |
value: Math.random() | |
} | |
}); | |
var simulation = d3.forceSimulation(nodes) | |
.force('charge', d3.forceManyBody().strength(5)) | |
.force('x', d3.forceX().x(function(d) { | |
return xScale(d.value); | |
})) | |
.force('y', d3.forceY().y(function(d) { | |
return 0; | |
})) | |
.force('collision', d3.forceCollide().radius(function(d) { | |
return d.radius; | |
})) | |
.on('tick', ticked); | |
function ticked() { | |
var u = d3.select('svg g') | |
.selectAll('circle') | |
.data(nodes); | |
u.enter() | |
.append('circle') | |
.attr('r', function(d) { | |
return d.radius; | |
}) | |
.style('fill', function(d) { | |
return d.color; | |
}) | |
.merge(u) | |
.attr('cx', function(d) { | |
return d.x; | |
}) | |
.attr('cy', function(d) { | |
return d.y; | |
}) | |
u.exit().remove(); | |
} | |
</script> | |
</body> | |
</html> |