| 1 | /** |
| 2 | * Bidirectional Tidy-Tree Layout Algorithm for Generic Diagrams |
| 3 | * |
| 4 | * This module provides a layout algorithm implementation using the |
| 5 | * non-layered-tidy-tree-layout algorithm for positioning nodes and edges |
| 6 | * in tree structures with a bidirectional approach. |
| 7 | * |
| 8 | * The algorithm creates two separate trees that grow horizontally in opposite |
| 9 | * directions from a central root node: |
| 10 | * - Left tree: grows horizontally to the left (children alternate: 1st, 3rd, 5th...) |
| 11 | * - Right tree: grows horizontally to the right (children alternate: 2nd, 4th, 6th...) |
| 12 | * |
| 13 | * This creates a balanced, symmetric layout that is ideal for mindmaps, |
| 14 | * organizational charts, and other tree-based diagrams. |
| 15 | * |
| 16 | * The algorithm follows the unified rendering pattern and can be used |
| 17 | * by any diagram type that provides compatible LayoutData. |
| 18 | */ |
| 19 | |
| 20 | /** |
| 21 | * Render function for the bidirectional tidy-tree layout algorithm |
| 22 | * |
| 23 | * This function follows the unified rendering pattern used by all layout algorithms. |
| 24 | * It takes LayoutData, inserts nodes into DOM, runs the bidirectional tidy-tree layout algorithm, |
| 25 | * and renders the positioned elements to the SVG. |
| 26 | * |
| 27 | * Features: |
| 28 | * - Alternates root children between left and right trees |
| 29 | * - Left tree grows horizontally to the left (rotated 90° counterclockwise) |
| 30 | * - Right tree grows horizontally to the right (rotated 90° clockwise) |
| 31 | * - Uses tidy-tree algorithm for optimal spacing within each tree |
| 32 | * - Creates symmetric, balanced layouts |
| 33 | * - Maintains proper edge connections between all nodes |
| 34 | * |
| 35 | * Layout Structure: |
| 36 | * ``` |
| 37 | * [Child 3] ← [Child 1] ← [Root] → [Child 2] → [Child 4] |
| 38 | * ↓ ↓ ↓ ↓ |
| 39 | * [GrandChild] [GrandChild] [GrandChild] [GrandChild] |
| 40 | * ``` |
| 41 | * |
| 42 | * @param layoutData - Layout data containing nodes, edges, and configuration |
| 43 | * @param svg - SVG element to render to |
| 44 | * @param helpers - Internal helper functions for rendering |
| 45 | * @param options - Rendering options |
| 46 | */ |
| 47 | export { default } from './layouts.js'; |
| 48 | export * from './types.js'; |
| 49 | export * from './layout.js'; |
| 50 | export { render } from './render.js'; |
| 51 | |