Created
November 14, 2019 14:41
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<!doctype html> | |
<html lang="en"> | |
<head> | |
<meta charset="utf-8"> | |
<title>main</title> | |
<meta name="viewport" content="width=device-width, initial-scale=1"> | |
<script src="//unpkg.com/d3"></script> | |
<style type="text/css"> | |
</style> | |
</head> | |
<body> | |
<div id="content"></div> | |
<script> | |
d3.csv("students.csv").then(data => { | |
const xValue = d => (+d.students * 1000); | |
const yValue = d => d.faculty; | |
const W = 600; | |
const H = 200; | |
var svg = d3.select("#content") | |
.append("svg") | |
.attr("width", W) | |
.attr("height", H); | |
//sets margins and inner height and width | |
const margin = {top: 20, right: 40, bottom: 50, left: 100}; | |
const innerWidth = W - margin.left - margin.right; | |
const innerHeight = H - margin.top - margin.bottom; | |
const xScale = d3.scaleLinear() //Domain entspricht Data space whereas Range entsprich screen space | |
.domain([0, d3.max(data, xValue)]) | |
.range([0, innerWidth]); | |
const yScale = d3.scaleBand() | |
.domain(data.map(yValue)) | |
.range([0, innerHeight]) | |
.padding(0.1); | |
const g = svg.append('g') | |
.attr('transform', `translate(${margin.left}, ${margin.top})`); | |
g.append('g').call(d3.axisLeft(yScale)); | |
g.append('g') | |
.call(d3.axisBottom(xScale)) | |
.attr('transform', `translate(0, ${innerHeight})`); | |
g.selectAll('rect') | |
.data(data) | |
.enter() | |
.append('rect') | |
.attr('y', d => yScale(yValue(d))) | |
.attr('width', d => xScale(xValue(d))) | |
.attr('height', yScale.bandwidth()); | |
}); | |
</script> | |
</body> | |
</html> |
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faculty | students | |
---|---|---|
maths | 100 | |
philosophy | 300 | |
biology | 220 | |
latin | 50 |
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