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<!DOCTYPE html> |
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<html> |
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<head> |
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<meta charset="utf-8"> |
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<meta name="viewport" content="width=device-width"> |
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<script src="https://d3js.org/d3.v4.min.js"></script> |
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<title>Top Internet Countries Visualization</title> |
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<style> |
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body { |
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margin: 0px; |
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} |
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.domain { |
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display: none; |
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} |
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.tick line { |
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stroke: #C0C0BB; |
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} |
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.tick text { |
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fill: #8E8883; |
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font-size: 14pt; |
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font-family: sans-serif; |
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} |
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.axis-label { |
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fill: #635F5D; |
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font-size: 32pt; |
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font-family: sans-serif; |
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} |
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</style> |
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</head> |
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<body> |
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<svg width="960" height="500"></svg> |
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<script> |
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const xValue = d => d.netUsers; |
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const xLabel = 'Internet Users'; |
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const yValue = d => d.country; |
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const yLabel = 'Country'; |
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const margin = { left: 150, right: 30, top: 5, bottom: 75 }; |
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const svg = d3.select('svg'); |
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const width = svg.attr('width'); |
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const height = svg.attr('height'); |
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const innerWidth = width - margin.left - margin.right; |
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const innerHeight = height - margin.top - margin.bottom; |
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const g = svg.append('g') |
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.attr('transform', `translate(${margin.left},${margin.top})`); |
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const xAxisG = g.append('g') |
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.attr('transform', `translate(0, ${innerHeight})`); |
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const yAxisG = g.append('g'); |
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xAxisG.append('text') |
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.attr('class', 'axis-label') |
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.attr('x', innerWidth / 2) |
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.attr('y', 55) |
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.text(xLabel); |
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const xScale = d3.scaleLinear(); |
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const yScale = d3.scaleBand() |
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.paddingInner(0.3) |
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.paddingOuter(0); |
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const xTicks = 10; |
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const xAxis = d3.axisBottom() |
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.scale(xScale) |
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.ticks(xTicks) |
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.tickPadding(5) |
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.tickFormat(d3.format('.0s')) |
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.tickSize(-innerHeight); |
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const yAxis = d3.axisLeft() |
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.scale(yScale) |
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.tickPadding(5) |
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.tickSize(-innerWidth); |
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const row = d => { |
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const netUsersWithCommas = d['Internet Users 31 Mar 2017']; |
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return { |
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country: d['Country or Region'], |
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netUsers: +netUsersWithCommas.replace(/,/g, '') |
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}; |
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}; |
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d3.csv('data.csv', row, data => { |
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yScale |
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.domain(data.map(yValue).reverse()) |
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.range([innerHeight, 0]); |
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xScale |
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.domain([0, d3.max(data, xValue)]) |
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.range([0, innerWidth]) |
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.nice(xTicks); |
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g.selectAll('rect').data(data) |
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.enter().append('rect') |
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.attr('x', 0) |
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.attr('y', d => yScale(yValue(d))) |
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.attr('width', d => xScale(xValue(d))) |
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.attr('height', d => yScale.bandwidth()) |
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.attr('fill', 'steelblue'); |
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xAxisG.call(xAxis); |
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yAxisG.call(yAxis); |
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yAxisG.selectAll('.tick line').remove(); |
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}); |
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</script> |
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</body> |
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</html> |