OkMap Tutorial - Creating a Garmin Custom Map

OkMap tutorial for creating a Garmin Custom Map (KMZ) from a georeferenced raster map.

Before you start:

To better understand this tutorial, it is recommended to watch the following video first:

Download   Manual

Procedure:

  • Load the map to be converted into a Garmin Custom Map
  • Adjust zoom level and area of interest
  • Open the Map Management - Map Tiling menu
  • Set output to Garmin Custom Map (KMZ)
  • Check format (JPG) and quality
  • Verify the number of generated tiles
  • Remove unwanted tiles (CTRL + left click)
  • Save as KMZ file
  • Check the map in Google Earth

Tips:

  • Check Garmin device limits (maximum number of tiles and file size)
  • Remove legend tiles or unnecessary tiles
  • Keep JPG quality between 80% and 90%
  • Reduce resizing factor if too many tiles are generated

Common errors:

  • Using too low JPG quality (< 75%)
  • Exceeding device tile limits
  • Creating tiles that are too large (e.g. > 1024 px)
  • Not verifying the final result in Google Earth