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[fitsbits] CDELTn
On Tue 2007/09/18 13:17:48 +0200, Francois Ochsenbein wrote in a message to: and copied to: 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 That's illegal for the good reason that NAXISn is not a WCS keyword - i.e. NAXISn is irrelevant when constructing a coordinate description. The data structures in WCSLIB do not even hold the NAXISn values. Mark Calabretta |
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