Offline Google Maps download and use

Note: requires Horus Widget version >= 1.9.3

Required software

• a recent version of MissionPlanner
• the google map tiles resize tool /HORUS/TOOLS/gmapresizetool.zip

Launch MissionPlanner, switch to the "PLAN" tab and download the offline tiles using MissionPlanner's map prefetch tool.

Supported map types are

• GoogleMap
• GoogleSatelliteMap
• GoogleHybridMap
• GoogleTerrainMap

Browse to your location, CTRL + left mouse button to draw the download region

right mouse button to select the prefetch tool

accept 20 as max zoom level (min is 1)

wait for download to complete, (time depends on the size of the area)

Unzip the resize tool /HORUS/TOOLS/gmapresizetool.zip

and launch gmapresizetool.exe

User needs to select:

• map type which has to be the same one used in MissionPlanner
• source folder will be automatically set to MissionPlanner download folder
• destination folder which can be the root of the SD card (if mounted) or a temp folder to be eventually copied to the SD card later.

Note: The resize tool will resize all tiles found in MissionPlanner offline cache, if there are tiles that should not be resized and transfered to the SD card it is necessary to clear the download folder C:\ProgramData\Mission Planner\gmapcache\TileDBv3\en* before starting the map prefetch tool.