[fitsbits] CDELTn

[Francois Ochsenbein]

Hello,

I just found a curiosity: FITS files having CDELTn axis set to zero.
This may look strange, but when the corresponding NAXISn is 1, this 
should be harmless. Is the value zero actually forbidden in the 
FITS definition ? (I did not find this restriction in the FITS definition).

It seems that fv does not like such FITS file, it generates an error.

--Francois
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Francois Ochsenbein       ------       Observatoire Astronomique de Strasbourg
   11, rue de l'Universite F-67000 STRASBOURG       Phone: +33-(0)390 24 24 29
Email: francois at astro.u-strasbg.fr   (France)         Fax: +33-(0)390 24 24 17
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