Please note:
This program is no upgrade of the "HTTrackBuilder". HTTrackBuilders purpose is to convert given tracks to a Humminbird readable format.
The program "HBTrackMapper" is a full featured mapping software. Its purpose is to calculate ISO-Lines from given GPX track recordings of your Humminbird device.

Here are some instructions, how to use HBTrackMapper:

1. Use the recording functionality of your Humminbird to save recorded tracks to SD-Card before shutting down your device (if you shut down the device all depth data get lost).

2. Download these recorded tracks using HumminbirdPC. Save to a GPX files. Do this for several tracks to get a dense net of track recordings (more tracks = higher accuracy).

3. Use Google Earth to redraw the shoreline and islands and save the shoreline as a KML file (use the "add path" tool to draw).

4. Load all KML and GPX files into the program. You will see a map like in the screenshot above. Then you will be able to interpolate and create an ISO map.

Best regards!
John Unofficial Humminbird Side Image Forums www.sideimageforums.com :: View topic - Map HACK -- Create simple maps !!!