Heatmap

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.13.0/lattice-grid.min.css">
<script src="https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.13.0/lattice-grid.min.js"></script>

<div id="chart" style="height: 340px"></div>
<div id="grid" style="height: 320px; margin-top: 14px"></div>

<script type="module">
  import { createChart } from 'https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.13.0/modules/charts';

  const grid = LatticeGrid.createGrid(document.getElementById('grid'), {
    rowKey: 'id', columns: [
      { field: 'circuit', title: 'Circuit', layout: { width: 180 } },
      { field: 'region', title: 'Region', filter: { type: 'set' } },
      { field: 'status', title: 'Status', filter: { type: 'set' } },
      { field: 'bandwidth', title: 'Bandwidth', type: 'number' },
      { field: 'charge', title: 'Monthly charge', type: 'number',
        format: { style: 'currency', currency: 'GBP' }, total: 'sum' },
    ], rows,
  });

  // Heatmap takes two categories, x and series, and a measure, y, at each cell.
  createChart({ grid, container: '#chart', type: 'heatmap',
    x: 'region', series: 'status', y: 'charge', diverging: true });
</script>