[Kst] [Bug 120747] Kst should properly display fits images with reversed axes.

[Ted Kisner]

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http://bugs.kde.org/show_bug.cgi?id=120747         




------- Additional Comments From tskisner.public gmail com  2006-05-04 01:43 -------
On Wednesday 03 May 2006 14:38, Andrew Walker wrote:
| Right, I think the only thing we need to add for one-dimensional data is an
| additional vector giving the pixel index according to CRVAL, CRPIX, CRDELT.

I was curious about these keywords, so I did some web searching.  I found the 
proposed WCS extensions to the FITS standard here:

http://fits.gsfc.nasa.gov/fits_wcs.html

It is a way of specifying the coordinates of pixels in a FITS image.  Also, I 
see that just a few days ago, a new Healpix FITS format was approved!

http://fits.gsfc.nasa.gov/wcs/mhg_20050615.pdf

It seems like these extensions currently require the WCS library in order to 
be used.  Does anyone know if this library is eventually going to be merged 
into cfitsio proper?

It seems to me that our FITS datasource should conditionally support WCS if 
the library is present.  I'll investigate this and try to come up with a 
design document for the new FITS datasource.

-Ted