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create coordinates for border lines of belgium provinces

Posted on 2010-09-20
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Last Modified: 2012-05-10
If I had an image such as the one attached (Belgium provinces), what's the best way to obtain coordinates for each province's boundary line (as a polygon - example record (for the province of Antwerp) of what output I'm after - this would be an overlay to the image) - concentrate on the coords values):
<shape="poly" alt="Antwerp" coords="455,64,439,59,465,160,426,170,438,198,586,203,697,150,685,82,647,52,654,31,641,13,617,45,583,48,572,34,587,34,587,15,572,6,545,34,510,32,515,17,483,26,489,58,466,65"/>
These polygon coordinates would be used as an overlay over the map, such that I can then fill them with different colors, etc).
I'm looking for instructions on a good way to obtain the coordinates (x1, y1, x2, y2, x3, y3, ...) for each province's boundary, with a reasonably good resolution (i.e,, the polygons should coincide with the images' border lines, but of course not necessarily replicate and follow every minute zick-zack.

Code examples in VBA, HTML/javascript, or processing-js would be excellent - or simply at a pointer of perhaps an existing application.
Province-MapImage.png
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Question by:wolfmm
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by:wolfmm
ID: 33746101
ups - thanks for pointing that out! Could you move this to VBA/scripting?
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by:South Mod
ID: 33778228
wolfmm,
 
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SouthMod
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GRayL earned 500 total points
ID: 33779979
You might want to have a look at Google Earth.  Depending on the scale, you can get the borders to show up, and by moving the cursor, you can pinpoint the Lat and Long very accurately.  You can also insert polygons on the map and store them in your computer.  You have not given enough description of the intended usage to be of any more help.  Sorry.
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by:GRayL
ID: 33903471
Thanks, glad to help
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