# Light Mindmap

**English** | [简体中文](#License)

Feature-rich mindmap plugin — multiple layouts, themes, node shapes & line styles, wikilink support, node collapse, PNG export — all from plain markdown headings, no custom syntax needed.

## Preview
![Light MindMap Preview](preview.png)

## How It Works

Add `type: mindmap` to any note's frontmatter. The plugin replaces the editor/reading view with a live mind map built from the note's heading hierarchy.

You can also right-click a folder in the file explorer and select **Create light mindmap** to quickly create a new mindmap file in that folder.

```yaml
---
type: mindmap
---

# My Plan
## Life
### walk the dog
### cook dinner
### call my parents
## *Work*
### write report
### team discussion
### send emails
## *Study*
### learn new words
### listen to podcast
### practice coding
## Shopping
### buy fruits
### get stationery
### pick up snacks

```

The mind map updates in real time as you edit the source.

## Features

### Auto-Render from Headings

- Parses all heading levels (`#` through `######`) into a tree
- Strips inline markdown (bold, italic, links, wikilinks, code) from node labels
- When multiple top-level headings exist, a virtual root node (named after the file) is created automatically
- Fenced code blocks are skipped during parsing

### Layouts

Five layout modes, switchable from the toolbar dropdown or via command:

| Layout           | Description                                                                    |
| ---------------- | ------------------------------------------------------------------------------ |
| **Balanced**     | Children are distributed to both sides of the root, weighted by subtree height |
| **Right**        | All branches expand to the right                                               |
| **Left**         | All branches expand to the left                                                |
| **Tree**         | Top-down tree — root at the top, branches expand downward                      |
| **Radial**       | Root at the center, branches radiate outward in a circle                       |

### Themes

Seven built-in color palettes:

| Theme        | Style                                         |
| ------------ | --------------------------------------------- |
| **Vibrant**  | Indigo/violet/pink gradient — the default     |
| **Classic**  | Earth tones on a warm cream background        |
| **Fresh**    | Greens and teals on a light mint background   |
| **Ocean**    | Blues and indigos on a pale blue background   |
| **Sunset**   | Reds, oranges, and pinks on a warm background |
| **Midnight** | Neon accents on a dark slate background       |
| **Slate**    | Cool blue-grey with a subtle tech grid pattern |

Themes adapt automatically to Obsidian's dark/light mode.

### Connection Line Styles

| Style                  | Shape                          | Dash   |
| ---------------------- | ------------------------------ | ------ |
| **Smooth**             | Cubic Bézier curve             | Solid  |
| **Smooth Dashed**      | Cubic Bézier curve             | Dashed |
| **Straight**           | Direct line                    | Solid  |
| **Right Angle**        | Horizontal + vertical segments | Solid  |
| **Right Angle Dashed** | Horizontal + vertical segments | Dashed |

### Node Shapes

| Shape          | Appearance                            |
| -------------- | ------------------------------------- |
| **Rounded**    | Rounded rectangle (default)           |
| **Square**     | Sharp corners                         |
| **Borderless** | No border or background on leaf nodes |
| **Pill**       | Fully rounded capsule                 |
| **Doodle**     | Hand-drawn style with slight rotation |

### Pan & Zoom

- **Drag** the canvas background to pan (mouse or touch)
- **Pinch** to zoom on touch devices
- **Scroll** to pan vertically/horizontally
- **Ctrl/Cmd + Scroll** to zoom in/out around the cursor
- Toolbar buttons: **Fit** (fit all nodes into view), **+** / **−** (step zoom)

### Node Editing

Nodes can be edited directly on the canvas — changes are written back to the markdown file:

| Action                        | Gesture / Key                                  |
| ----------------------------- | ---------------------------------------------- |
| Select node                   | Click                                          |
| Edit node text                | Double-click or **F2**                         |
| Confirm edit                  | **Enter**                                      |
| Confirm edit + add child      | **Tab**                                        |
| Cancel edit                   | **Escape**                                     |
| Add sibling (without editing) | Select node, press **Enter**                   |
| Add child (without editing)   | Select node, press **Tab**                     |
| Delete node                   | Select node, press **Delete** or **Backspace** |
| Collapse / expand node        | Select node, press **Space**                   |
| Drag node (change parent)     | Drag node to center of another node            |
| Drag node (reorder)           | Drag node to top/bottom of another node        |
| Right-click context menu      | Right-click on node                            |

- The root node cannot be deleted.
- Pressing **Enter** on the root node has no effect (no sibling can be added above root).
- Pressing **Tab** on a collapsed node auto-expands it and adds a new child.
- Double-clicking or pressing **F2** on a collapsed node auto-expands it and enters edit mode.
- Collapsed nodes display a **+** badge after the text. The badge is also rendered in exported PNGs.

### Right-Click Context Menu

Right-click on any node to open the context menu with quick actions:

| Action           | Description                                                 |
| ---------------- | ----------------------------------------------------------- |
| **Edit**         | Enter edit mode for the node                                |
| **Add Sibling**  | Insert a sibling node (not available on root)               |
| **Add Child**    | Create a child node (auto-expands if collapsed)             |
| **Collapse**     | Toggle collapsed state (only for nodes with children)       |
| **Delete**       | Delete the node (not available on root)                     |

The context menu automatically displays in Chinese or English based on Obsidian's language setting.

### Persisted Settings

All per-file display preferences are written to frontmatter and restored on next open:

| Frontmatter key  | Values                                                                 |
| ---------------- | ---------------------------------------------------------------------- |
| `mindmap-layout` | `balanced` / `right` / `left` / `tree` / `radial`                      |
| `mindmap-theme`  | `vibrant` / `classic` / `fresh` / `ocean` / `sunset` / `midnight` / `slate` |
| `mindmap-line`   | `curve` / `straight` / `polyline` / `polyline-dashed` / `curve-dashed` |
| `mindmap-node`   | `rounded` / `square` / `borderless` / `circle` / `doodle`              |

### Toggle Source View

- **Edit Markdown** button in the toolbar hides the mind map and shows a floating **Light Mindmap** button
- Returning from source view auto-fits the mindmap to the viewport
- Command palette: **Toggle mindmap / source view**
- Command palette: **Cycle mindmap layout (balanced / right / left / tree / radial)**

### Links & Wiki-links

Markdown links (`[text](url)`) and wiki-links (`[[Note]]`, `[[Note|Alias]]`) in heading text are rendered as clickable links on the mindmap canvas.

- **External links** (`http://...`) open in the default browser
- **Internal links** (relative paths like `./note.md`) open in a new Obsidian tab
- **Wiki-links** (`[[Note]]`) open the target note in a new Obsidian tab — supports shortest paths, relative paths, and aliases natively

During node editing, typing `[[` triggers an autocomplete popup that searches all vault notes. Use **↑↓** to navigate, **Enter** to insert, **Escape** to dismiss. Links are shown as plain text while editing for easy modification.

### Export PNG

Click the **Export PNG** button in the toolbar to save the current mindmap as a high-resolution PNG image (2x scale). A system file dialog will let you choose the save location.

## Installation

### From Obsidian Community Plugins (recommended)

1. Open **Settings → Community plugins → Browse**
2. Search for **Light Mindmap**
3. Click **Install**, then **Enable**

### Manual

1. Download `main.js`, `manifest.json`, and `styles.css` from the [latest release](https://github.com/ninglg/obsidian-light-mindmap/releases/latest)
2. Copy the three files into `<vault>/.obsidian/plugins/obsidian-light-mindmap/`
3. Reload Obsidian and enable the plugin in **Settings → Community plugins**

## Example Frontmatter

```yaml
---
type: mindmap
mindmap-layout: balanced
mindmap-theme: vibrant
mindmap-line: curve
mindmap-node: rounded
---
```

## Compatibility

- Minimum Obsidian version: **1.4.0**
- Desktop and mobile supported
- Works with both light and dark Obsidian themes

## License

MIT

---

[English](#light-mindmap) | **简体中文**

功能丰富的思维导图插件——多种布局、主题、节点形状与连线样式，支持双向链接、节点折叠、PNG 导出——基于纯 Markdown 标题渲染，无需任何自定义语法。

## 预览

![Light MindMap 预览](preview.png)

## 使用方法

在笔记的 frontmatter 中添加 `type: mindmap`，插件会自动将编辑/阅读视图替换为实时思维导图，导图内容来自笔记的标题层级。

也可以在文件资源管理器中右键点击**文件夹**，选择 **新建轻量级脑图**，快速在该文件夹下创建一个新的脑图文件。

```yaml
---
type: mindmap
---

# My Plan
## Life
### walk the dog
### cook dinner
### call my parents
## *Work*
### write report
### team discussion
### send emails
## *Study*
### learn new words
### listen to podcast
### practice coding
## Shopping
### buy fruits
### get stationery
### pick up snacks

```

编辑源文件时，思维导图会实时更新。

## 功能特性

### 从标题自动生成导图

- 解析所有标题层级（`#` 到 `######`）为树状结构
- 自动去除节点文本中的行内 Markdown 格式（粗体、斜体、链接、Wiki 链接、行内代码）
- 当存在多个顶级标题时，会自动创建以文件名命名的虚拟根节点
- 解析时自动跳过围栏代码块

### 布局模式

五种布局，可通过工具栏下拉菜单或命令切换：

| 布局       | 说明                                           |
| ---------- | ---------------------------------------------- |
| **均衡**   | 子节点分布于根节点两侧，按子树高度加权分配     |
| **向右**   | 所有分支向右展开                               |
| **向左**   | 所有分支向左展开                               |
| **树形**   | 自上而下树状布局，根节点在顶部，分支向下展开   |
| **放射**   | 根节点居中，分支沿圆周向外辐射                 |

### 主题

七套内置配色方案：

| 主题       | 风格                                       |
| ---------- | ------------------------------------------ |
| **活力**   | 靛蓝/紫罗兰/粉红渐变——默认主题            |
| **经典**   | 暖色大地色调，奶油色背景                   |
| **清新**   | 绿色与青色，薄荷色背景                     |
| **海洋**   | 蓝色与靛色，浅蓝色背景                     |
| **日落**   | 红、橙、粉暖色调，温暖背景                 |
| **午夜**   | 深色底板搭配霓虹色彩                       |
| **石板**   | 冷灰蓝色调，带淡雅科技网格纹理             |

主题会自动适配 Obsidian 的深色/浅色模式。

### 连线样式

| 样式               | 形状               | 虚线 |
| ------------------ | ------------------ | ---- |
| **平滑**           | 三阶贝塞尔曲线     | 实线 |
| **平滑虚线**       | 三阶贝塞尔曲线     | 虚线 |
| **直线**           | 直线段             | 实线 |
| **直角**           | 水平 + 垂直折线    | 实线 |
| **直角虚线**       | 水平 + 垂直折线    | 虚线 |

### 节点形状

| 形状       | 外观                         |
| ---------- | ---------------------------- |
| **圆角**   | 圆角矩形（默认）             |
| **方角**   | 直角矩形                     |
| **无边框** | 叶子节点无边框和背景         |
| **胶囊**   | 完全圆角的胶囊形             |
| **涂鸦**   | 手绘风格，带轻微随机旋转     |

### 平移与缩放

- **拖拽** 画布背景进行平移（支持鼠标和触屏）
- **捏合** 进行触屏缩放
- **滚轮** 上下/左右平移
- **Ctrl/Cmd + 滚轮** 以光标为中心缩放
- 工具栏按钮：**适配**（将所有节点适配到视窗）、**+** / **−**（步进缩放）

### 节点编辑

可直接在画布上编辑节点，修改会回写到 Markdown 源文件：

| 操作                       | 手势 / 按键                             |
| -------------------------- | --------------------------------------- |
| 选中节点                   | 单击                                    |
| 编辑节点文字               | 双击或按 **F2**                         |
| 确认编辑                   | **Enter**                               |
| 确认编辑并添加子节点       | **Tab**                                 |
| 取消编辑                   | **Escape**                              |
| 添加同级节点（无需编辑）   | 选中节点后按 **Enter**                  |
| 添加子节点（无需编辑）     | 选中节点后按 **Tab**                    |
| 删除节点                   | 选中节点后按 **Delete** 或 **Backspace**|
| 折叠/展开节点              | 选中节点后按 **Space**                  |
| 拖拽节点（改变父节点）     | 拖拽节点到另一个节点的中心区域         |
| 拖拽节点（调整顺序）       | 拖拽节点到另一个节点的上方或下方区域   |
| 右键上下文菜单             | 右键点击节点                            |

- 根节点不可删除。
- 在根节点上按 **Enter** 无效（根节点上方无法添加同级节点）。
- 在已折叠节点上按 **Tab** 会自动展开并添加子节点。
- 双击或按 **F2** 已折叠节点会自动展开并进入编辑模式。
- 已折叠节点的文字后会显示 **+** 标记，导出 PNG 时也会保留该标记。

### 右键上下文菜单

右键点击任意节点可打开上下文菜单，提供快捷操作：

| 操作             | 说明                                                    |
| ---------------- | ------------------------------------------------------- |
| **编辑**         | 进入节点编辑模式                                        |
| **创建同级节点** | 在当前节点同级插入新节点（根节点不可用）                |
| **创建下级节点** | 创建子节点（已折叠时自动展开）                          |
| **折叠/展开**    | 切换折叠状态（仅对有子节点的节点可用）                  |
| **删除**         | 删除节点（根节点不可用）                                |

上下文菜单会根据 Obsidian 的语言设置自动显示中文或英文。

### 持久化设置

所有单文件显示偏好会写入 frontmatter，下次打开时自动恢复：

| Frontmatter 字段   | 可选值                                                                     |
| ------------------ | -------------------------------------------------------------------------- |
| `mindmap-layout`   | `balanced` / `right` / `left` / `tree` / `radial`                          |
| `mindmap-theme`    | `vibrant` / `classic` / `fresh` / `ocean` / `sunset` / `midnight` / `slate`|
| `mindmap-line`     | `curve` / `straight` / `polyline` / `polyline-dashed` / `curve-dashed`     |
| `mindmap-node`     | `rounded` / `square` / `borderless` / `circle` / `doodle`                  |

### 切换源码视图

- 工具栏中的 **Edit Markdown** 按钮可隐藏思维导图并显示浮动的 **Light Mindmap** 按钮
- 从源码视图返回时会自动适配导图到视窗
- 命令面板：**Toggle mindmap / source view**
- 命令面板：**Cycle mindmap layout (balanced / right / left / tree / radial)**

### 链接与双向链接

标题中的 Markdown 链接（`[文本](url)`）和 Wiki 链接（`[[笔记]]`、`[[笔记|别名]]`）会直接在思维导图画布上渲染为可点击的链接。

- **外部链接**（`http://...`）在默认浏览器中打开
- **内部链接**（相对路径如 `./note.md`）在新的 Obsidian 标签页中打开
- **Wiki 链接**（`[[笔记]]`）在新的 Obsidian 标签页中打开目标笔记——原生支持最短路径、相对路径和别名

编辑节点时，输入 `[[` 会触发自动补全弹窗，搜索所有 vault 笔记。使用 **↑↓** 导航、**Enter** 插入、**Escape** 关闭。编辑模式下链接显示为纯文本以便修改。

### 导出 PNG

点击工具栏中的 **Export PNG** 按钮，将当前思维导图保存为高清 PNG 图片（2 倍分辨率）。系统文件对话框允许你选择保存位置。

## 安装

### 通过 Obsidian 社区插件安装（推荐）

1. 打开 **设置 → 社区插件 → 浏览**
2. 搜索 **Light Mindmap**
3. 点击 **安装**，然后 **启用**

### 手动安装

1. 从 [最新版本](https://github.com/ninglg/obsidian-light-mindmap/releases/latest) 下载 `main.js`、`manifest.json` 和 `styles.css`
2. 将这三个文件复制到 `<vault>/.obsidian/plugins/obsidian-light-mindmap/` 目录下
3. 重新加载 Obsidian，在 **设置 → 社区插件** 中启用该插件

## Frontmatter 示例

```yaml
---
type: mindmap
mindmap-layout: balanced
mindmap-theme: vibrant
mindmap-line: curve
mindmap-node: rounded
---
```

## 兼容性

- 最低 Obsidian 版本：**1.4.0**
- 支持桌面端和移动端
- 兼容 Obsidian 深色和浅色主题

## 许可证

MIT