🚀 go-pugleaf

[eat your heart out line eater]


We're a graphics R&D shop with a requirement to display symbology
superimposed upon a map background.  This entails converting global
position data (in terms of latitude/longitude values) to screen
points and vice versa.  Does anyone know of:

    1.)  Any published algorithms for commonly-used map projections
         (e.g. Mercator, transverse Mercator, stereographic or
         Lambert conformal)? 

    2.)  Any software packages that we can adapt (we need source
         code, since future target machines can be just about
         anything)? 

    3.)  Any method to convert between Universal Transverse Mercator
         (UTM) coordinates and latitude/longitude coordinates?

Any suggestions would be greatly appreciated.  
                                        the gnomes in Seattle


                                        Mikey

  my job is so secret even I don't know what I'm doing!