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73 lines
1.4 KiB
Markdown
73 lines
1.4 KiB
Markdown
# @mermaid-js/layout-elk
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This package provides a layout engine for Mermaid based on the [ELK](https://www.eclipse.org/elk/) layout engine.
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> [!NOTE]
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> The ELK Layout engine will not be available in all providers that support mermaid by default.
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> The websites will have to install the `@mermaid-js/layout-elk` package to use the ELK layout engine.
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## Usage
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```
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flowchart-elk TD
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A --> B
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A --> C
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```
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```
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---
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config:
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layout: elk
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---
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flowchart TD
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A --> B
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A --> C
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```
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```
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---
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config:
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layout: elk.stress
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---
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flowchart TD
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A --> B
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A --> C
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```
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### With bundlers
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```sh
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npm install @mermaid-js/layout-elk
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```
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```ts
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import mermaid from 'mermaid';
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import elkLayouts from '@mermaid-js/layout-elk';
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mermaid.registerLayoutLoaders(elkLayouts);
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```
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### With CDN
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```html
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<script type="module">
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import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.esm.min.mjs';
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import elkLayouts from 'https://cdn.jsdelivr.net/npm/@mermaid-js/layout-elk@11/dist/mermaid-layout-elk.esm.min.mjs';
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mermaid.registerLayoutLoaders(elkLayouts);
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</script>
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```
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## Supported layouts
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- `elk`: The default layout, which is `elk.layered`.
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- `elk.layered`: Layered layout
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- `elk.stress`: Stress layout
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- `elk.force`: Force layout
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- `elk.mrtree`: Multi-root tree layout
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- `elk.sporeOverlap`: Spore overlap layout
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<!-- TODO: Add images for these layouts, as GitHub doesn't support natively -->
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