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60 lines
1.7 KiB
Markdown
60 lines
1.7 KiB
Markdown
# @mermaid-js/layout-tidy-tree
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This package provides a bidirectional tidy tree layout engine for Mermaid based on the non-layered-tidy-tree-layout algorithm.
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> [!NOTE]
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> The Tidy Tree 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-tidy-tree package to use the Tidy Tree layout engine.
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## Usage
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```
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---
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config:
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layout: tidy-tree
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---
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mindmap
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root((mindmap))
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A
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B
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```
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### With bundlers
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```sh
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npm install @mermaid-js/layout-tidy-tree
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```
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```ts
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import mermaid from 'mermaid';
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import tidyTreeLayouts from '@mermaid-js/layout-tidy-tree';
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mermaid.registerLayoutLoaders(tidyTreeLayouts);
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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 tidyTreeLayouts from 'https://cdn.jsdelivr.net/npm/@mermaid-js/layout-tidy-tree@0/dist/mermaid-layout-tidy-tree.esm.min.mjs';
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mermaid.registerLayoutLoaders(tidyTreeLayouts);
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</script>
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```
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## Tidy Tree Layout Overview
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tidy-tree: The bidirectional tidy tree layout
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The bidirectional tidy tree layout algorithm creates two separate trees that grow horizontally in opposite directions from a central root node:
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Left tree: grows horizontally to the left (children alternate: 1st, 3rd, 5th...)
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Right tree: grows horizontally to the right (children alternate: 2nd, 4th, 6th...)
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This creates a balanced, symmetric layout that is ideal for mindmaps, organizational charts, and other tree-based diagrams.
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Layout Structure:
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[Child 3] ← [Child 1] ← [Root] → [Child 2] → [Child 4]
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↓ ↓ ↓ ↓
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[GrandChild] [GrandChild] [GrandChild] [GrandChild]
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