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<!DOCTYPE html> |
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<head> |
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<meta charset="utf-8"> |
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<script src="https://d3js.org/d3.v4.min.js"></script> |
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<style> |
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body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } |
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svg { |
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width: 100%; |
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height: 100%; |
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} |
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</style> |
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</head> |
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<body> |
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<svg></svg> |
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<script> |
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const city = 'Austin'; |
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const width = 800; |
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const height = 300; |
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const margin = { top: 20, bottom: 20, left: 20, right: 20 } |
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// dataset of city temperatures across time |
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d3.tsv('data.tsv', (err, data) => { |
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// clean the data |
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data.forEach(d => { |
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// console.log(d.date) |
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d.date = d3.timeParse("%Y%m%d")(d.date); |
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// console.log(d.date) |
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d.date = new Date(d.date); // x |
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d[city] = +d[city]; // y |
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}); |
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// Scales |
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const xExtent = d3.extent(data, d => d.date); |
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const yExtent = d3.extent(data, d => d[city]); |
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const xScale = d3.scaleTime() |
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.domain(xExtent) |
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.range([margin.left, width - margin.right]); |
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const yScale = d3.scaleLinear() |
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.domain(yExtent) |
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.range([height - margin.bottom, margin.top]); |
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const svg = d3.select('svg'); |
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const line = d3.line() |
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.x(d => xScale(d.date)) |
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.y(d => yScale(d[city])) |
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.curve(d3.curveCatmullRom) |
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svg.append('path') |
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.attr('d', line(data)) |
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.attr('fill', 'none') |
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.attr('stroke', '#333') |
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// const rect = svg.selectAll('rect') |
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// .data(data) |
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// .enter().append('rect') |
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// .attr('width', 2) |
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// .attr('height', d => height - yScale(d[city])) |
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// .attr('x', d => xScale(d.date)) |
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// .attr('y', d => yScale(d[city])) |
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// .attr('stroke', '#fff') |
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// .attr('fill', d => { |
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// let temp = d[city]; |
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// switch(true) { |
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// case temp < 40: |
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// return '#1D4E89' |
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// case temp < 50: |
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// return '#00B2CA' |
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// case temp < 60: |
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// return '#7DCFB6' |
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// case temp < 70: |
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// return '#FBD1A2' |
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// case temp < 80: |
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// return '#F79256' |
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// default: |
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// return '#F71C00' |
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// } |
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// }); |
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const xAxis = d3.axisBottom() |
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.scale(xScale); |
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const yAxis = d3.axisLeft() |
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.scale(yScale); |
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svg.append('g') |
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.attr('transform', `translate(0, ${height})`) |
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.call(xAxis) |
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svg.append('g') |
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.attr('transform', `translate(${margin.left}, 0)`) |
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.call(yAxis) |
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}); |
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</script> |
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</body> |
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