demo D251

Bump chart in ESM

Watch a ranking change from one period to the next, where a crossing is a change of place

type: 'bump', x, series, y

This draws a bump chart of a ranking changing from one period to the next, where a crossing line is a change of place. It makes shifts in position over time obvious, so who overtook whom reads directly.

Building…

Loading a live grid…

This is the ES module version. The grid is imported straight from a CDN as a module, the same configuration as the vanilla tab without a global script tag, so it drops into any bundler or a bare module script.

The configuration

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.71.0/lattice-grid.min.css">

<div id="grid" style="height: 320px"></div>
<div id="chart" style="height: 340px"></div>

<script type="module">
  import { createChart } from '@toclocoinc/lattice-grid/modules/charts';
  import '@toclocoinc/lattice-grid/modules/chart-bump';  // opt in to the bump type

  const grid = createGrid(document.getElementById('grid'), {
    rowKey: 'id',
    columns: [
      { field: 'team', title: 'Team', filter: { type: 'set' } },
      { field: 'quarter', title: 'Quarter', filter: { type: 'set' } },
      { field: 'revenue', title: 'Revenue', type: 'number', total: 'sum' },
    ],
    rows,  // one team per quarter: team, quarter, revenue
  });

  // series draws one line per team; the line rides its rank, so a crossing is a
  // change of place.
  createChart({
    grid,
    container: document.getElementById('chart'),
    type: 'bump',
    x: 'quarter',
    series: 'team',
    y: 'revenue',
    title: 'Rank by quarter',
  });
</script>