[iaufwg] Call for vote on the new FITS Standard

[Arnold Rots]

I agree with Steve.

  - Arnold

Steve Allen wrote:
> On Tue 2008-05-06T16:11:22 -0700, Dick Shaw hath writ:
> > While it may be possible to find ways to improve the wording still further in
> > the 3.0 draft, IMHO the time for that has come and gone, save for serious
> > technical flaws. In any case, the suggested change is not correct in the
> > general case: the index in question, j, runs from 1 to WCSAXES.
> 
> True for the value of j
> The array index referred to by CRPIXja runs from 1 to NAXISj - 1.
> 
> This subtlety of array index numbering was a significant point of
> argument during the development of WCS papers 1 and 2.  Those
> discussions resulted in that explanatory paragraph and the inclusion
> of footnote 1 in WCS 1.  (Alas that the string CRPIX did not get
> included within that paragraph to make the hunting easier.)
> 
> If such words are not in the 3.0c draft then the only way for someone
> to know the numbering is to find WCS 1 or the original Wells paper.
> 
> I support William Thompson's suggestion that this is important enough
> to fix.
> 
> --
> Steve Allen                 <sla at ucolick.org>                WGS-84 (GPS)
> UCO/Lick Observatory        Natural Sciences II, Room 165    Lat  +36.99855
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Arnold H. Rots                                Chandra X-ray Science Center
Smithsonian Astrophysical Observatory                tel:  +1 617 496 7701
60 Garden Street, MS 67                              fax:  +1 617 495 7356
Cambridge, MA 02138                             arots at head.cfa.harvard.edu
USA                                     http://hea-www.harvard.edu/~arots/
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