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@jbelmont

jbelmont/.block

Last active September 14, 2017 02:37
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Enter and Append with Existing Rects
Raw
.block
license: mit
Raw
index.html
<!DOCTYPE html>
<head>
<meta charset="utf-8">
<script src="https://d3js.org/d3.v4.min.js"></script>
<style>
body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
svg {
width: 100%;
height: 100%;
}
</style>
</head>
<body>
<svg>
<rect />
<rect />
</svg>
<script>
const width = 100;
const height = 200;
const data = [50, 75, 100, 125, 200];
const svg = d3.select('svg');
// this is grabbing an empty selection
const enter = svg.selectAll('rect')
.data(data)
.enter().append('rect')
.attr('x', (d, i) => i * width)
.attr('y', d => height - d)
.attr('width', width)
.attr('height', d => d)
.attr('fill', d => d === 100 ? 'blue' : 'red')
.attr('stroke', '#85ff60');
console.log(enter);
</script>
</body>
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