SRTM2TAK

A Progressive Web Application for downloading and packaging SRTM elevation data for ATAK (Android Team Awareness Kit).

🌐 Live App: https://joshuafuller.github.io/SRTM2TAK

🚀 Quick Start

Visit the deployed app: https://joshuafuller.github.io/SRTM2TAK

Or run locally:

npm install
npm run dev

📋 Features

• 📍 Area Selection: Draw rectangles on a map to select elevation tiles
• 📦 Batch Download: Download multiple SRTM tiles efficiently
• 🗜️ Streaming ZIP: Uses @zip.js/zip.js for memory‑efficient packaging
• 📱 Mobile Ready: Works on phones, tablets, and desktops
• 🔌 Offline Mode: PWA with offline capabilities (GitHub Pages‑ready)
• ⚡ Memory Efficient: Streaming downloads and compression prevent memory overflow

🎯 Use Case

ATAK users need elevation data for 3D terrain visualization and analysis. This tool simplifies the process of:

1. Finding the right SRTM tiles for your area
2. Downloading them from AWS S3
3. Packaging them for ATAK import
4. Managing storage and memory constraints

🛠️ Development

Prerequisites

• Node.js 18+
• npm or yarn

Setup

# Install dependencies
npm install

# Run development server
npm run dev

# Run tests
npm run test

# Build for production
npm run build

Project Structure

SRTM2TAK/
├── src/
│   ├── lib/         # Core libraries
│   ├── ui/          # UI components (map, overlays)
│   ├── models/      # Data models
│   └── main.ts      # Entry point
├── tests/           # Test files
├── docs/            # Documentation
└── validation/      # Validation tests

📊 Current Status

Phase	Status	Progress
Phase 0: Validation	✅ Complete	100%
Phase 1: Prototype	✅ Complete	100%
Phase 2: Project Setup	✅ Complete	100%
Phase 3: Test Infrastructure	📝 Next	0%

See tasks.md for detailed progress.

🤝 Contributing

Contributions welcome! Please read our Contributing Guide first.

📄 License

MIT License

🙏 Acknowledgments

• NASA/USGS for SRTM data
• AWS for hosting elevation tiles
• MapLibre GL and zip.js for great open‑source tooling
• ATAK community for the amazing platform