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layercake

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layercake

graphics framework for sveltejs

9.0.0

latest

Source

npm

Version published: 2 weeks ago

Weekly downloads: 11K

Maintainers: 1

Weekly downloads

Created: 8 years ago

Source

Layer Cake

a framework for mostly-reusable graphics with svelte

🍰 See examples 🍰 Read the guide 🍰 API docs 🍰 View the Component Gallery 🍰 Try the starter template

Svelte versions

Works with Svelte 3 through 5. Note the library itself does not use runes but it is compatible with Svelte 5. This will change in future versions.

All of the examples use Rune syntax but the Svelte 3 and Svelte 4 versions are still available at the documentation archive.

Install

npm install --save layercake

Example

<script>
  // The library provides a main wrapper component
  // and a bunch empty layout components...
  import { LayerCake, Svg, Html, Canvas } from 'layercake';

  // ...that you fill with your own chart components,
  // that live inside your project and which you
  // can copy and paste from here as starting points.
  import AxisX from './components/AxisX.svelte';
  import AxisY from './components/AxisY.svelte';
  import Line from './components/Line.svelte';
  import Scatter from './components/Scatter.svelte';
  import Labels from './components/Labels.svelte';

  const data = [
    { x: 0, y: 1 },
    { x: 1, y: 2 },
    { x: 2, y: 3 }
  ];
</script>

<style>
  .chart-container {
    width: 100%;
    height: 500px;
  }
</style>

<div class="chart-container">
  <LayerCake
    x='x'
    y='y'
    {data}
  >
    <Svg>
      <AxisX/>
      <AxisY/>
      <Line color='#f0c'/>
    </Svg>

    <Canvas>
      <Scatter color='#0fc'/>
    </Canvas>

    <Html>
      <Labels/>
    </Html>
  </LayerCake>
</div>

License

MIT

9.0.0

2025-07-24

Converts most of the codebase to Svelte 5's runes and incorporates some longstanding pending breaking changes.

Breaking changes

The title prop on Svg and ScaledSvg layout components is renamed to titleText to avoid conflicting with the title snippet namespace. https://github.com/mhkeller/layercake/pull/271
The title snippet for those components now creates the outer <title> tag for you. Previously, the slot was blank and you had to write your own <title> wrapper. https://github.com/mhkeller/layercake/pull/271
The fallback slot on Canvas and Webgl layout components was removed. The fallback text prop is sufficient. https://github.com/mhkeller/layercake/pull/271
The extents prop is deprecated https://github.com/mhkeller/layercake/pull/243
Domains for ordinal scales are no longer sorted by default https://github.com/mhkeller/layercake/pull/241

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Package last updated on 25 Jul 2025

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