Thread: Garmin custom map tiling software

Use free JNX and you will be free from all limitation!

number of levels of detail: JNX up to 5 KMZ - only one
number of tiles: JNX - up to 50000 per level KMZ -max. 100 per device (!), up to 500 in Montana
subjective rendering speed: JNX - high KMZ - low
supported image type: JNX - any type KMZ - Jpeg
image size: JNX - up to several Gb KMZ - 3MB

Thanks for the info. I will look into JNX files but from what I see they require changing Garmin firmware to work on device.

One advantage however of jpg/KMZ combination is that they are very easy to make in Google Earth, work in any device without any changes to firmware.

Originally Posted by james222

Thanks for the info. I will look into JNX files but from what I see they require changing Garmin firmware to work on device.

In any case you need to update device from time to time! I do not force to use JNX to you, but for me it is the significant improvement of Garmin device.