d3-tutorial/stackBar.html at master · Yixian15/d3-tutorial · GitHub

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<!DOCTYPE html>
<html>
  <body>
    <style>
      svg {
        border: 1px solid lightgrey;
      }

    </style>
    <script src="http://d3js.org/d3.v5.min.js"></script>
    <script type="text/javascript">
      const maxHeight = 400;
      const maxWidth = 600;
      const barWidth = 20;

      const data = [
        {
          day: 1,
          apple: 10,
          tomato: 10,
          orange: 20,
        },
        {
          day: 2,
          banana: 20,
          tomato: 20,
          orange: 10,
        },
        {
          day: 3,
          tomato: 10,
          pineapple: 10,
        },
      ];

      const stack = d3.stack().keys(['apple', 'banana', 'tomato', 'orange', 'pineapple']).order(d3.stackOrderNone).offset(d3.stackOffsetNone);
      const series = stack(data);
      const colorArray = ['#38CCCB', '#0074D9', '#2FCC40', '#FEDC00', '#FF4036'];

      function renderVerticalStack() {
        const svg = d3.select('body')
          .append('svg')
          .attr('width', maxWidth)
          .attr('height', maxHeight);

        const x = d3.scaleBand()
          .domain(data.map((d) => d.day))
          .range([0, maxWidth])

        const stackMax = (serie) => d3.max(serie, (d) => d ? d[1] : 0)
        const stackMin = (serie) => d3.min(serie, (d) => d? d[0]: 0)

        const y = d3.scaleLinear()
          .domain([d3.max(series, stackMax), d3.min(series, stackMin)])
          .range([0, maxHeight])

        const g = svg.selectAll('g')
          .data(series)
          .enter()
          .append('g')
          .attr('fill', (d, i) => colorArray[i % colorArray.length])
          .selectAll('rect')
          .data((d) => d)
          .enter()
          .append('rect')
          .attr('x', (d) => x(d.data.day))
          .attr('y', (d) => y(d[1]))
          .attr('width', barWidth)
          .attr('height', (d) => {
            return y(d[0]) - y(d[1])
          })
      }

      function renderHorizontalStack() {
        const svg = d3.select('body')
          .append('svg')
          .attr('width', maxWidth)
          .attr('height', maxHeight);

        const y = d3.scaleBand()
          .domain(data.map((d) => d.day))
          .range([0, maxHeight])

        const stackMin = (serie) => d3.min(serie, (d) => d[0])
        const stackMax = (serie) => d3.max(serie, (d) => d[1])
        const x = d3.scaleLinear()
          .domain([d3.min(series, stackMin), d3.max(series, stackMax)])
          .range([0, maxWidth])

        svg.selectAll('g')
          .data(series)
          .enter()
          .append('g')
          .attr('fill', (d, i) => colorArray[i % colorArray.length])
          .selectAll('rect')
          .data((d) => d)
          .enter()
          .append('rect')
          .attr('y', (d) => y(d.data.day))
          .attr('x', (d) => x(d[0]))
          .attr('height', 20)
          .attr('width', (d) => x(d[1]) - x(d[0]))
      }

      renderVerticalStack()
      renderHorizontalStack()

    </script>
  </body>
</html>