First - thanks for the response.
> I have done some graduate work in mathematics and you don't quite have
> enough information to solve this problem -- even if you can effectively
> assume that the world is flat and rectangular in shape. From the way you
> describe the problem, I think you are making these assumptions anyway and
Yep.
> in that rather distorted world, you just need one more piece of information
> in order to solve the problem. You need the coordinates on the world map
> for one of the four corners of the United Kingdom's boundary. To make
Yep - I did work out I needed 'em, just forgot to include -
> things easier, I will assume that you know the coordinates for the lower
> left hand corner, LL(a,b).
- thanks for understanding.
> Since we already know that on the big map of the UK, up(x,y) is x units to
> the east and y units to the north of the lower left hand corner of the map,
> it is just a matter of changing these units to match the scaled down
> version. To do this multiply the x cordinate by the width of the uk on the
> world map and divide it by the width on the map of just the uk -- x*suw/uw.
> Do the same thing to the y coordinate like so -- y*suh/uh. Now just move
> these scaled distances on the World map starting at LL. Resulting in:
>
> wp(x,y) = (a + x*suw/uw, b + y*suh/uh).
>
> Hope that helps,
Indeed it does - thanks Ben.
Lee
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