How to Use

1. Click on the map to select exactly 4 corner points (they will form your export area)
2. Drag any point to adjust its position on the map
3. Choose your desired zoom level (higher = more detail, larger file)
4. Click "Generate PNG" to create your map image
5. Click "Download PNG" when ready - very large images will be split into multiple files automatically
6. For split images, use osm_merger.py to combine the tiles