Utility program to assist in using the Offroad Navigator plug-in for TOMTOM GPS

Purpose

Program to convert a single map image file to a number of smaller files suitable for the "Offroad Navigator" plug-in for Tom Tom.

The Offroad Navigator plug-in was written by roussillat, and can be found at http://www.webazar.org/tomtom/offroad.php?lang=uk.

Operation

1. Use "Options" to configure the program. Option settings are remembered between program uses.
  a. Select the correct target Tom Tom model.
  b. Select whether you wish to allow maps to overlap. Usually, the rightmost and bottommost maps will be partial, and have empty space. This empty space can be evenly distributed by overlapping the maps.

2. Load the image using File|Open. It will accept any image file format that Windows understands.

3. Calibrate the image (not necessary for OziExplorer files)
  a. Select "Point 1" on the map, and enter the Long/Lat.
  b. Select the "Point 2" tab and select Point 2 on the map, and enter Long/Lat.
  c. Press the "Calibrate" button, and it will calculate the top left and bottom right extents of the map.
You can enter these manually if you know them, but calibrate is much more easy/accurate.

During this process you can zoom and pan the image so as to set points very accurately.

4. Using "File|Export", produce a series of bitmap files, and a config.txt file, that is compatible with Offroad. These files will be created in the /Offroad/ folder where the source image is located.

5. Copy these files to the /offroad/maps folder on your Tom Tom.

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