demo D177

Data labels in Web Component

Values beside the marks, or left to the axis

labels: true

This shows values printed beside the marks, or left to the axis, as a choice. It lets you put the exact figure on the chart where precision matters, or keep it clean and let the axis carry the scale.

Building…

Loading a live grid…

This is the web component version. A lattice-grid custom element renders the grid with no build step, its configuration set as a property, so it works on a page that has no bundler at all.

The configuration

<link rel="stylesheet" href="https://cdn.latticegrid.dev/lattice-grid@1.107.0/lattice-grid.min.css">

<script type="module">
  import { defineLatticeGrid } from 'https://cdn.latticegrid.dev/lattice-grid@1.107.0/modules/webcomponent.esm.min.js';
  defineLatticeGrid();
</script>

<div style="display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; height: 260px">
  <div id="with"></div>
  <div id="without"></div>
</div>
<lattice-grid row-key="id" style="display: block; height: 320px; margin-top: 14px"></lattice-grid>

<script type="module">
  import { createChart } from 'https://cdn.latticegrid.dev/lattice-grid@1.107.0/modules/charts.esm.min.js';

  const el = document.querySelector('lattice-grid');
  el.config = {
    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' },
    ],
  };
  el.rows = rows;  // an array of circuit records

  // labels writes the value beside each mark; turned off, the axis carries the
  // scale. Both charts read el.grid, the live grid inside the element, so they
  // follow the table.
  createChart({ grid: el.grid, container: '#with',    type: 'bar', x: 'region', y: 'charge', labels: true });
  createChart({ grid: el.grid, container: '#without', type: 'bar', x: 'region', y: 'charge', labels: false });
</script>