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4.4 Current Status

In support of this proposal, Calabretta has developed the WCSlib software package. It is available under a GNU Public License through the NRAO FITS archive described in Section 6.2.

The Greisen and Calabretta (1996) proposal is still under discussion in the FITS community and may undergo further changes. The following aspects of the proposal have wide acceptance already and should be generally understood by FITS readers:

Trial implementations and discussions will continue before a standard for world coordinates becomes part of the overall FITS standard. Among the questions still under discussion are the following:

Keep up with the current discussion in the forums described in section 6. Make certain that the community has reached agreement in the areas described above before implementing any of those features in archival data sets.


next up previous contents
Next: Advanced FITS Up: World Coordinate Systems Previous: Coordinate Keywords