On Thu, 18 Dec 2003, David Berry wrote:
> Tim,
>
> > 1) GAIA does not follow the FITS-WCS paper III convention by default (goes
> > to the CARLIN thing). GAIA can, and probably should, follow FITS WCS by
> > default, or at least give an astrometry warning when reading a fits file
> > and deciding to do something different. The CARLIN mode rectangular grid
> > should be plotted over the entire map still, with dec increasing to the 90
> > line then decrerasing again after the 90 line, with a 180 degree flip in
> > RA.
>
> How would you expect the 180 degree flip in RA to be represented by a set
> of annotated axes? I can't picture it myself.
>
Presumably with separate RA annotations on the top and bottom of the grid
and a thick line at a dec of 90 degrees? I realise this is a bit odd...
--
Tim Jenness
JAC software
http://www.jach.hawaii.edu/~timj
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