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diff --git a/tksao/wcssubs/Readme b/tksao/wcssubs/Readme new file mode 100644 index 0000000..61107cf --- /dev/null +++ b/tksao/wcssubs/Readme @@ -0,0 +1,36 @@ +WCSsubs Subroutines + +These subroutines, developed as part of the WCSTools software package, +constitute a self-contained package for accessing the world coordinate +systems of FITS or IRAF(.imh) images, with image header I/O contained +in fitsfile.c and imhfile.c, and WCS initialization and use through the +subroutines in wcs.c. WCS information for an image is kept in a single +data structure defined in wcs.h. Pixel to WCS translations are done by +calls to pix2wcst() or pix2wcs(). WCS to pixel translations are done +by calls to wcs2pix() or wcsc2pix(). The contents of the files are +briefly described in Files. Dependencies between these files are given +in Makefile. Documentation, to some extent, is online at + +http://tdc-www.harvard.edu/software/wcstools/libwcs.wcs.html + +Documentation for the entire open-source WCSTools package is online at + +http://tdc-www.harvard.edu/software/wcstools/ + +Projection code in wcspos.c is by Bill Cotton of NRAO and is +protected by the Gnu Lesser General Public License, which is stated +in the file COPYING. Projection code in wcslib.c, +cel.c, lin.c, proj.c, wcstrig.c, and sph.c is by Mark Calabretta +of CSIRO and is also protected by the Gnu Lesser General Public +License. Code in slasubs.c is by Pat Wallace of the Starlink +project at Cambridge University. Doug Mink is responsible for +the rest of the code, unless otherwise noted in the source file. +Unless otherwise noted, this code is Copyright 2003 by the +Smithsonian Astrophysical Observatory and protected by the Gnu +Lesser General Public License. + +-Jessica Mink (jmink@cfa.harvard.edu) + Telescope Data Center + Harvard-Smithsonian Center for Astrophysics + Cambridge, Massachusetts + http://tdc-www.harvard.edu/mink |