[fitsbits] generic coordinate system

[Salvatore Lorusso]

Hi,

I'm evaluating the possibility to use the FITS format to save the results of
my numerical simulations. The problem is that I may have not regular grids,
so
if for example I save the density rho(i,j) in a plane, the trasformation
between
numerical coordinates i,j and physical coordinate system x(i,j) y(i,j) is
not
trivial. I'm thinking to save also x(i,j) and y(i,j) as 'images' in the FITS
file, but
it would be useful to have a software to display rho vs (x,y).

Do you know if there is some software that can do it?

Thanks

Salvatore Lorusso