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Thread: Map Overlays

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    Khris's Avatar
    Khris is offline Sergeant
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    Map Overlays

    Are these being used much? Does anyone have some us overlays. I downloaded some overlays, but I can't figure out how to use them. They are in smartpath binary and .mbm file types. Any help would be appreciated.

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    asprin624's Avatar
    asprin624 is offline Lieutenant
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    Re: Map Overlays

    This is how you do it
    Creating a map overlay

    1. Save your image as a .JPG, .BMP or .GIF file (for example, cebit2.gif). The maximum size of the image is 2040 x 2040 pixels.
    Note: You cannot name your file with the same prefix as any existing pre-installed map overlays eg. eux, eur or usa. To see which prefixes are already in use, look in the .ver files in the raster folder on your device.
    2. Create the .SAT file. Open a text editor such as Notepad (Windows) or TextEdit (Mac). You will need to enter 9 lines of text.
    Line 1 - filename of the image file.
    Line 2 - GPS coordinate of the top left corner of the image (longitude).
    Line 3 - GPS coordinate of the top left corner of the image (latitude).
    Line 4 - GPS coordinate of the bottom right corner of the image (longitude).
    Line 5 - GPS coordinate of the bottom right corner of the image (latitude).
    Line 6 - Minimum zoom level for image to be visible (min = 0).
    Line 7 - Maximum zoom level for image to be visible (max = 65,535).
    Line 8 - Width of image file in pixels.
    Line 9 - Height of image file in pixels.

    3. Save the file with the same filename as your image file and with the extension .SAT (for example, cebit2.sat).
    4. Copy both files ) to the raster folder on your device.
    5. Go to the Browse map screen on your device, tap Options and make sure that the Images box is selected.

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    rhino2277 is offline Lance Corporal
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    Re: Map Overlays

    Thanks for the how to.

    1. For a Go720 do I need to format the picture in such a way that it matches the dimensions of my screen?
    2. Can you have different pictures of the same lat/long so that different pictures can be used for different zoom?
    Cheers for any help.

    Quote Originally Posted by asprin624 View Post
    This is how you do it
    Creating a map overlay

    1. Save your image as a .JPG, .BMP or .GIF file (for example, cebit2.gif). The maximum size of the image is 2040 x 2040 pixels.
    Note: You cannot name your file with the same prefix as any existing pre-installed map overlays eg. eux, eur or usa. To see which prefixes are already in use, look in the .ver files in the raster folder on your device.
    2. Create the .SAT file. Open a text editor such as Notepad (Windows) or TextEdit (Mac). You will need to enter 9 lines of text.
    Line 1 - filename of the image file.
    Line 2 - GPS coordinate of the top left corner of the image (longitude).
    Line 3 - GPS coordinate of the top left corner of the image (latitude).
    Line 4 - GPS coordinate of the bottom right corner of the image (longitude).
    Line 5 - GPS coordinate of the bottom right corner of the image (latitude).
    Line 6 - Minimum zoom level for image to be visible (min = 0).
    Line 7 - Maximum zoom level for image to be visible (max = 65,535).
    Line 8 - Width of image file in pixels.
    Line 9 - Height of image file in pixels.

    3. Save the file with the same filename as your image file and with the extension .SAT (for example, cebit2.sat).
    4. Copy both files ) to the raster folder on your device.
    5. Go to the Browse map screen on your device, tap Options and make sure that the Images box is selected.

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