Re: [fitsbits] Re: Reading floating point FITS files

On Wed 2003/11/12 23:34:27 -0800, Steve Allen wrote
in a message to: FITSbits <[EMAIL PROTECTED]>

>It is not obvious how physical data values would be preserved and
>documented when doing this.  Most pretty pictures have been clipped,
>stretched, mapped, and/or scaled in ways that obliterate physical
>meaning in the data values.

Preserve physical data values?  This image may help to clarify matters -
http://antwrp.gsfc.nasa.gov/apod/ap020920.html

>At best this seems an awful lot like reinventing TIFF in FITS.
>There should be strong justifications before doing this.

Can TIFF put a celestial coordinate grid on the above image?

Mark Calabretta
ATNF