DJI RC Map Downloader

A Python script to download and generate offline map tiles for DJI RC controllers.

Requirements

• Python 3.6+
• No external dependencies (uses only standard library)

Usage

python map_downloader.py -n NORTH -s SOUTH -w WEST -e EAST [OPTIONS]

Required Arguments

Argument	Description
-n, --north	Northern latitude of bounding box
-s, --south	Southern latitude of bounding box
-w, --west	Western longitude of bounding box
-e, --east	Eastern longitude of bounding box

Optional Arguments

Argument	Default	Description
--name	offline_map	Name for the map region
--min-zoom	1	Minimum zoom level
--max-zoom	17	Maximum zoom level
--workers	8	Number of parallel download workers
-o, --output	tiles	Output directory for tiles

Examples

Download map tiles for a small area:

python map_downloader.py -n 32.10 -s 32.07 -w 34.76 -e 34.80

Download with custom name and fewer workers:

python map_downloader.py -n 32.10 -s 32.07 -w 34.76 -e 34.80 --name "Tel Aviv" --workers 4

Download only zoom levels 10-15:

python map_downloader.py -n 32.10 -s 32.07 -w 34.76 -e 34.80 --min-zoom 10 --max-zoom 15

Installation on DJI RC

1. Run the script to download tiles for your desired area
2. Connect your DJI RC controller to your computer via USB
3. Copy the tiles directory (or your custom output directory) to:

   <sdcard>/DJI_RC/Android/data/dji.go.v5/files/DJI/tiles/
   

4. The offline map will be available in your DJI app

Output Format

The script generates:

• Map tiles: PNG images in Slippy map format (tile-{zoom}-{x}-{y}.png)
• config.json: Index file required by the DJI app

Example config.json:

[{
  "latitudeNorth": 32.10,
  "latitudeSouth": 32.07,
  "longitudeEast": 34.80,
  "longitudeWest": 34.76,
  "maxZoom": 17,
  "minZoom": 1,
  "name": "Tel Aviv",
  "timestamp": 1714180803938
}]

Notes

• Higher zoom levels generate exponentially more tiles. A small area at zoom 17 can have thousands of tiles.
• The script uses multiprocessing for faster downloads. Adjust --workers based on your connection.
• Existing output directory will be deleted before downloading.