Unless you can figure out how to get the galaxy map in the exact same position each time, it's not going to match up.
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I took this picture
http://frontier.co.uk/i_content/elitedangerous_milkywaygalaxy_logo_600.jpg
Resampled it and figured out how to project galaxy map coordinates on to it.
That's the only full top down view I could find. The galaxy map itself can't be rotated into a nice linear projection.
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It's all hand work, write down the coordinates from the galaxy map, divide by x, add 0,0 point on the picture, draw the lines in with paint shop.
There's plenty of dead time in game to keep up with that though.
I could write a program to do it for me, but I can't do that in witch space time. I've done enough programming to know these things always take a lot longer than anticipated
