software to plot Aitoff Projection

Hi,

I've been trying, fairly unsucessfully, to get gnuplot to plot an aitoff projection. Anyone know how to do it, or what software can do it easily (and freely!) from a set of lat/long coords?

Basically I want to change the graphic thats in my avatar, to a projection like
(though of the galaxy not the Earth!)

Cheers,
~Al (yep its writeup time again!)

Worked it out.

Formulae taken from the Aitoff projection page on wilkipedia
[code:1]
XC(lat,lon)=(2*(acos(cos(lon)*cos(lat/2)))*cos(lon)*sin(lat/2))/sin(acos(cos(lon)*cos(lat/2)))
YC(lat,lon)=(( acos(cos(lon)*cos(lat/2)) *sin(lon) ) / sin( acos(cos(lon)*cos(lat/2)) ))
set angles degrees
plot "miranda.loc" using (XC($1,$2)):(YC($1,$2))[/code:1]

where "miranda.loc" is a file containing two columns; one for galactic lat and one for galactic lon.

Worked it out.

Damn, you just beat me to it...

:lol:

Damn, you just beat me to it...

:lol:

again! :lol:

Thats one high tech avatar Al. :lol:

Thats one high tech avatar Al. :lol:

It's taken about 3 months to draw :lol: