Origami FOLD File Visualizer and Format

Preview and editor support for FOLD (Flexible Origami List Datastructure) files.

Features

🔍 Interactive Preview

• Pan and zoom controls
• Customizable fold styles and colors
• Live updates as you edit
• Legend showing fold types and labels
• Optional index labels for vertices, edges, and faces

✨ Editor Features

• Syntax highlighting
• JSON formatting
• Format on save support
• Custom file icons
• Bracket matching

Quick Start

1. Open a .fold file
2. Click the preview icon in the editor title bar (or use Ctrl+K V / Cmd+K V)
3. Edit your file and watch the preview update

Preview Controls

• 🖱️ Zoom: Mouse wheel or +/- keys
• 🖐️ Pan: Click and drag
• 🔄 Reset: R key or "Reset Zoom" button
• 📐 Fit: F key or "Fit to View" button
• 🏷️ Labels: Toggle vertex, edge, and face labels

Formatting

• Format Document: Shift+Alt+F
• Right-click → Format Document
• Format on save (optional)

Customization

Visual Settings

Customize through VS Code's Settings UI:

• Colors for each fold type
• Line styles
• Vertex appearance
• Canvas properties
• Label styles

Default Settings

• Mountain folds: Red, dash-dot
• Valley folds: Blue, dashed
• Boundary edges: Black, solid
• Vertices: Visible, black
• Background: White
• Labels: Color-coded circles with indices

Configuration

All settings available in settings.json or through Settings UI (Extensions > FOLD Preview).

Requirements

Visual Studio Code version 1.80.0 or higher

Support

Found a bug or have a suggestion? Please report it on the GitHub repository.

Enjoy!