Notes on How to Make a Garmin IMG Contourlines Map
Written by Grigory Rechistov in Uncategorized on 15.01.2018. Tags: garmin, img, contours,
I was dissatisfied with available contourmaps for Garmin. So I made my own.
Below are short notes on how to create an IMG file for a given area of the Earth.
Sequence of steps
Get DEM (digital elevation map) data
Download hgt files from http://www.viewfinderpanoramas.org/dem3.html …