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Nested circle packEdit

  • +page.svelte
  • ./_components/CirclePack.html.svelte
  • ./_data/familyTree.csv
<script>
  import { LayerCake, Html } from 'layercake';

  import CirclePack from './_components/CirclePack.html.svelte';

  // This example loads csv data as json using @rollup/plugin-dsv
  import data from './_data/familyTree.csv';

  const idKey = 'name';
  const parentKey = 'parent';
</script>

<div class="chart-container">
  <LayerCake padding={{ top: 0, bottom: 20, left: 30 }} {data}>
    <Html>
      <CirclePack
        {idKey}
        {parentKey}
        spacing={5}
        sortBy={(a, b) => b.depth - a.depth}
        labelVisibilityThreshold={r => false}
        stroke="#00bbff"
      />
    </Html>
  </LayerCake>
</div>

<style>
  /*
    The wrapper div needs to have an explicit width and height in CSS.
    It can also be a flexbox child or CSS grid element.
    The point being it needs dimensions since the <LayerCake> element will
    expand to fill it.
  */
  .chart-container {
    width: 100%;
    height: 250px;
  }
</style>