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@d3indepth
Last active April 19, 2021 20:54
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Force layout (x axis)
license: gpl-3.0
height: 220
border: no
<!-- <!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>
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