I've dug around the forums, but can't find what I'm looking for--my apologies in advance if I overlooked it. I am trying to figure out how to create the maps for Offroad Navigator from GoogleEarth. I found the thread that discusses the utility that will split large maps--but I can't figure how to create the original map to begin witth. Any help is greatly appreciated.

 

Are you talking about the raster map overlays that work with the 3rd party software "offroad"? Or is there a google map software called "offroad" that I have not heard about?

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TT ONE XL APP 7.162
tomtom.mnu, Reverseitn, Tripmaster, Offroad, MenuTT
USA_and_Canada V675.1409
Using a 2 GIG SD Card for "emergency" backup

 

I was talking about creating raster overlays for the 3rd party software Offroad Navigator, but I got it figured out. Thanks.

 

Could you share how you did this? I am looking to try it out

 

I can tell you how I did it. I'm sure there are more efficient methods, but this one worked for me:
1. Start a free Google account so that you can create and edit your own maps.
2. In GoogleMaps, go to the My Maps option, and "Create new map"
3. Use the "Place mark" option to set a pushpin at the point for the upper left corner of your desired map coverage, and another one for the lower right corner of your map.
4. After setting your 2 corner points, click the "View in GoogleEarth" button
5. In GoogleEarth, you can right click on your 2 place marks and in the properties view, see the lat/long of your marks. Write these numbers down.
6. Use a screen capture utility to capture either the GoogleEarth map or the GoogleMaps image. Make sure your capture includes your two place marks. (I use SnagIt for my captures. It has a free trial period, but it's worth whatever they are asking for it these days.)
7. After creating your base map (it can be in any format.), use Marc Hillman's package to calibrate the map and split it into smaller maps that will fit on your GPS. The hyperlink has good instructions on how to use this utility. (Thanks Marc!)
--I will add here that I'm using a One 130. The maps created by the Hillman package are the right size and calibrated, BUT...for some reason, I can not get them to work with Offroad Navigator. I compared the images created by Hillman utility to those images that did work on my system. The only differences were the bit depth. I don't even know what bit depth really is, or why it would effect the performance of Offroad Navigator, but it does. The images created by the Hillman utility have a bit depth of 8. My images that worked had a bit depth of 24. Guess another function of SnagIt??--that's right! It has an image converter that lets you change the bit depth. After changing the Hillman created images to a 24 bit depth, they worked like a champ! (This is not as complicated as I'm making it sound.)
8. Put your calibrated bmp maps in the correct folder (as described by Hillman and roussillat)--DONE.

Hope this helps. Good Luck!