won't this require a projection of the sphere onto a cube, or a 
icosahedron, or dodecahedron, or whatever?

that will be a relatively simple task for the computer -- a harder part 
will be relocating the boundaries of text strings so that they don't get 
trapped in a corner (not a problem on spherical)

lurking molecule bert

William Hamblen wrote:

> shurik0001 wrote:
>
> > the way most of the star atlas maps are designed that I came across on
> > the net do assemble into one continues map if you print them seprately
> > does anyone know how to overcome this ??
>
> Do you want both hemispheres (360 degrees) or just what is above the
> horizon at a given date and time (180 degrees) like the monthly sky
> charts in Sky and Telescope? Cartes du Ciel will make a chart showing a
> complete horizon view, but the detail is limited to what will show on a
> computer screen at once. For a poster size map you might need to plot
> it by hand. I think the maps in Sky and Telescope are stereographic
> projections, which make a good looking chart with less distortion at the
> horizon than some other projections.
>
> One possibility is to find a program that will plot a detailed all-sky
> chart (I don't know which one) and output it to a .pdf file. The
> current Adobe Reader will let you print enlarged sections of a .pdf file
> that you can paste together to make a poster.
>
> Bud
>
>  




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