i didn't say that your formula was wrong Pisces ! in fact ,my formula and yours is exactly the same thing ! (in trigonometry you can change from tangments to sines or coses but i bet you know that)
when i said that need tiny-tiny fixes i meant that in some cases the tools 'loose' 1-2 degrees.maybe is a false at printing.
of course this will never be noticable in the game.for that is very good.
i mentioned it only for the tool itself...you know to be....perfect!
bye

no Kranz,you still don't get it . you can use (if you want) the Pato's scale at any zoom.i said that what you see in scale is in miles,so when the target is at 1000 in pato's scale then the distance (in meters) is 1000 x 1.55 = 1550 m and this is what the ruler shows

here is the Pato's scale in meters:

http://i545.photobucket.com/albums/h...patometers.jpg

So I need that tool in kilometers then.

I think kranz was pointing to the idea that this overlay tool is still good for marking bearing of the target on the nav map. The sad point of it: it is in miles and ain't helping to get more accurate range to target.

You are right. Both formulas match after a bit of a sine/cosine/tangent juggling act. Hadn't done that yet until now. (note to self: pen on paper proofs perfectness)

Tell me about those imperfect marks please. I thought I had all of them fixed. Correct alignment of the centers of the disks is very important if you want the marks to line up.

Imho, plotting within 1.5 km is too short anyway. Maybe you can find a zoom level which makes a line of 15 km match with the 1.5 ring. Or you size up the image to make it that way with a graphics editing program.

gentlemen, pato's image is deadly acurate in EVERY zoom level ! in fact, more acurate CAN'T be ! it is working in EVERY ZOOM LEVEL ! all you have to do is to change miles to meters.
for example ,you see a ship at 1200 in pato's scale then the deadly acurate distance to target(in meters) is 1200x1.55=1860m...so simple!
you see it at 1250 in pato's scale then the deadly acurate distance to target(in meters) is 1250x1.55=1937.5m
you see a ship at 3000 (in pato's) then distance (in meters) is 3000x1.55=4650m

I just installed Pato's brg overlay and noticed the same discrepancy. Gott in himmel, why would he put it in miles? And not even the correct conversion for statute or nautical miles. That being said, I would prefer to work in NM, but I guess that's not the way the crazy Germans did things. ;)