[ImageDM] Mapping

[Steve Allen]

On Thu 2013-11-21T15:23:12 +0000, Tim Jenness hath writ:
> Do I get the impression that the VO WCS model is entirely based on
> the FITS WCS model?  Has there been any thought to having a more
> flexible model that can, for example, support chained mappings (as
> implemented in the AST library and internally by HST)?

There is a neglected proposal and an implementation of concatenation
of FITS WCS.  The proposal has lain unchanged for a decade at
http://www.ucolick.org/~sla/fits/wcsdep_20020906.pdf
and the implementation still exists in Mink's WCSTools package.

--
Steve Allen                 <sla at ucolick.org>                WGS-84 (GPS)
UCO/Lick Observatory--ISB   Natural Sciences II, Room 165    Lat  +36.99855
1156 High Street            Voice: +1 831 459 3046           Lng -122.06015
Santa Cruz, CA 95064        http://www.ucolick.org/~sla/     Hgt +250 m