Created
March 12, 2017 22:51
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D3 Dot Graph
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| snap | audience | |
|---|---|---|
| 0 | 100 | |
| 1 | 95 | |
| 2 | 82 | |
| 3 | 78 | |
| 4 | 61 | |
| 5 | 59 | |
| 6 | 42 | |
| 7 | 30 | |
| 8 | 29 | |
| 9 | 15 |
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| <!DOCTYPE html> | |
| <svg width='960' height='200'></svg> | |
| <script src='https://d3js.org/d3.v4.min.js'></script> | |
| <script> | |
| const svg = d3.select('svg') | |
| const margin = {top: 20, right: 20, bottom: 30, left: 50} | |
| const width = +svg.attr('width') - margin.left - margin.right | |
| const height = +svg.attr('height') - margin.top - margin.bottom | |
| const g = svg.append('g') | |
| .attr('transform', `translate(${margin.left},${margin.top})`) | |
| const x = d3.scaleLinear() | |
| .rangeRound([0, width]) | |
| const y = d3.scaleLinear() | |
| .rangeRound([height, 0]) | |
| const yAxis = d3.axisRight(y) | |
| .ticks(5) | |
| .tickSize(width) | |
| .tickFormat('') | |
| const line = d3.line() | |
| .x((d) => x(d.snap)) | |
| .y((d) => y(d.audience)) | |
| const area = d3.area() | |
| .x((d) => x(d.snap)) | |
| .y1((d) => y(d.audience)) | |
| const background = '#814ac2' | |
| d3.csv('data.csv', (d) => { | |
| d.snap = parseInt(d.snap, 10) | |
| d.audience = parseInt(d.audience, 10) | |
| return d | |
| }, (error, data) => { | |
| if (error) throw error | |
| console.log(data) | |
| x.domain(d3.extent(data, (d) => d.snap)) | |
| y.domain([0, 100]) | |
| area.y0(y(0)) | |
| g.append('g') | |
| .call(customYAxis) | |
| g.append('path') | |
| .datum(data) | |
| .attr('fill', background) | |
| .attr('opacity', 0.38) | |
| .attr('d', area) | |
| g.append('path') | |
| .datum(data) | |
| .attr('fill', 'none') | |
| .attr('stroke', background) | |
| .attr('stroke-linejoin', 'round') | |
| .attr('stroke-linecap', 'round') | |
| .attr('stroke-width', 1.5) | |
| .attr('d', line) | |
| g.selectAll('dot') | |
| .data(data) | |
| .enter().append('circle') | |
| .attr('r', 2.5) | |
| .attr('fill', background) | |
| .attr('cx', (d) => x(d.snap)) | |
| .attr('cy', (d) => y(d.audience)) | |
| }) | |
| function customYAxis(g) { | |
| g.call(yAxis); | |
| g.select('.domain').remove(); | |
| g.selectAll('.tick line') | |
| .attr('stroke-opacity', 0.5) | |
| .attr('stroke', '#000') | |
| .attr('stroke-dasharray', '1,10'); | |
| g.selectAll('.tick text').attr('x', 4).attr('dy', -4); | |
| } | |
| </script> |
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