Fabry-Perot Data Support

Both IRAF and ZODIAC contain basic support for three-dimensional data handling:

• Multi-dimensional array support.
• No data structure size restrictions.
• Efficient 3-d data access.

Features particular to IRAF include:

• Large library of complex fitting and interpolation routines.
• Well-integrated graphics.
• Multi-axis WCS support.

Features particular to ZODIAC include:

• Small number of interface layers provide simple, fast data access.
• Extensive support for image masks.

Although the foundation for three-dimensional data analysis certainly exists in IRAF , support is not universal at the application level. For example, IRAF has an excellent pixel masking interface (PMIO), but masks are not supported by any of the standard tasks, such as IMSTAT, IMSURFIT, or GAUSS. This is a major obstacle, and will unfortunately require substantial re-coding of basic IRAF tasks. In contrast, ZODIAC contains full support for image masks throughout its tasks, but is lacking in well-integrated graphics and mathematical routines.