69 lines
2.3 KiB
JavaScript
69 lines
2.3 KiB
JavaScript
const w = 800
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const h = 400
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d3.json('https://raw.githubusercontent.com/FreeCodeCamp/ProjectReferenceData/master/GDP-data.json')
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.then(data => {
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const dataset = data.data
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d3.select('#chart')
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.append('svg')
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.attr('height', h)
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.attr('width', w)
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function getDate(d) {
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console.log(d, new Date(d[0]))
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return new Date(d[0]);
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}
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const xScale = d3.scaleTime()
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.domain([getDate(dataset[0]), getDate(dataset[dataset.length - 1])])
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.range([0, w])
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const yScale = d3.scaleLinear()
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.domain([0, d3.max(dataset, (d) => d[1])])
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.range([h, 0])
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const xAxis = d3.axisBottom().scale(xScale);
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const yAxis = d3.axisLeft().scale(yScale);
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d3.select('svg')
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.append('g')
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.call(xAxis)
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.attr('id', 'x-axis')
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.attr('transform', 'translate(40, 360)')
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d3.select('svg')
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.append('g')
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.call(yAxis)
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.attr('id', 'y-axis')
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.attr('transform', 'translate(40, -40)')
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d3.select('svg')
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.selectAll('rect')
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.data(dataset)
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.enter()
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.append('rect')
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.attr('class', 'bar')
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.attr('x', (d) => xScale(getDate(d)) + 40)
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.attr("y", (d) => yScale(d[1]) - 40)
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.attr('width', () => w / 275)
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.attr("height", (d) => h - yScale(d[1]))
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.attr('data-date', (d) => d[0])
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.attr('data-gdp', (d) => d[1])
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.style('fill', '#74dbf1')
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.on('mouseover', (e) => {
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const date = e.target.__data__[0]
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const value = e.target.__data__[1]
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d3.select('#tooltip')
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.attr('data-date', date)
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.style('display', 'initial')
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.text(() => 'Date: ' + date + " GDP: " + value)
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})
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.on('mouseout', () => {
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d3.select('#tooltip')
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.style('display', 'none')
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})
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}
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)
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