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authorWilliam Joye <wjoye@cfa.harvard.edu>2016-10-26 21:13:00 (GMT)
committerWilliam Joye <wjoye@cfa.harvard.edu>2016-10-26 21:13:00 (GMT)
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-WCSTools libwcs Subroutines (3.9.0, March 11, 2011)
-
-actread.c
- Return stars from the USNO ACT Reference Catalog
-binread.c
- Return stars from catalog files in the TDC binary catalog format
-catread.c
- Return stars from catalog files in the TDC ASCII catalog format
-catutil.c
- Subroutines for catalog identification and number range decoding
-cel.c
- WCSLIB spherical coordinate transformation drivers
-daoread.c
- Read x, y, and magnitude from DAOFIND output file and return x, y, and
- flux for use by IMSTAR or IMWCS.
-dateutil.c
- Subroutines for conversions between various date and time formats
-distort.c
- Subroutines for conversions between image pixel and focal plane coordinates
-dsspos.c
- dsspos() uses the WCS structure to compute sky coordinates given
- image pixel X and Y for images with Digitized Sky Survey plate solutions
- in their headers. dsspix() uses the WCS structure to compute image
- pixel X and Y given sky coordinates for DSS images. Algorithms from
- StSCI CASB.
-fileutil.c
- Subroutines for finding size and contents of ASCII files
-findstar.c
- findStars() gets the location and brightest pixel of stars in the given
- image. Included are subroutines to find and reject bright pixels and
- compute a star centroid.
-fitsfile.c
- FITS header and image reading and writing subroutines, including FITS
- table support.
-fitswcs.c
- GetWCSFITS() returns a WCS structure used by wcs.c subroutines from a FITS
- or IRAF .imh image, reading only the header.
- GetFITShead() returns a FITS header from a FITS or IRAF .imh image.
- DelWCS() delete the WCS keywords in a FITS header.
-fortcat.c
- Fortran wrapper subroutines for catalog reading subroutines ctgread() and ctgrnum()
-fortwcs.c
- Fortran wrapper subroutines for all useful subroutines in wcs.c and wcsinit.c
-gscread.c
- Return HST Guide Stars from standard CDROM format FITS table files for
- a given RA, Dec, and magnitude range or list of star numbers.
-gsc2read.c
- Return GSC II Stars using an HTTP query over the web for
- a given RA, Dec, and magnitude range or list of star numbers.
-hget.c
- Subroutines to extract values from FITS headers by keyword.
- Subroutines for parsing RA and Dec strings are included.
-hput.c
- Subroutines to implant values into FITS headers by keyword (and to
- delete headers).
-iget.c
- Subroutines to extract values from IRAF multi-keyword header parameters
-imhfile.c
- IRAF header and image reading and writing subroutines. IRAF headers
- are converted to FITS headers for use by other programs and can be
- derived from FITS headers for writing.
-imio.c
- Subroutines to get, put, and move pixels of various data types between images
- im memory and a program.
-imrotate.c
- RotFITS() rotates an image by 90, 180, or 270 degrees, with an optional
- left-right reflection before the rotation.
-imgetwcs.c
- GetWCSFITS() reads world coordinate system header information and returns
- the image center coordinates and size as well as the wcs data structure.
-imsetwcs.c
- SetWCSFITS() uses findStars to find the stars in an image, gscread to
- find the Guide Stars in the nominal image region, and findRegisration or
- findCoords to fit plate-tangent WCS to the image.
-lin.c
- WCSLIB linear transformation subroutines
-matchstar.c
- StarMatch() takes a list of reference star positions and a list
- of object coordinates from an image and finds the image pixels
- which correspond to each of the reference stars. It then uses these
- matches to get an image center, plate scale, and rotation. The actual
- fit is based on the amoeba subroutine in Numerical Recipes, and all
- necessary subroutines are included.
-platepos.c
- platepos() uses the WCS structure to compute sky coordinates given
- image pixel X and Y for images with polynomial plate solutions
- in their headers. platepix() uses the WCS structure to compute image
- pixel X and Y given sky coordinates for such images. Algorithms are based
- on those in dsspos.c, but go straight from pixels to angles without an
- intermediate plate coordinate.
-poly.c
- Polynomial evaluation for SCAMP distortion correction
-proj.c
- WCSLIB spherical map projection subroutines
-sdssread.c
- Return Sloan Digital Sky Survey Photometry Catalog sources using an
- HTTP query over the web for a given RA, Dec, and magnitude range.
-sortstars.c
- Subroutines to sort lists of stars by right ascension, magnitude, or flux
-sph.c
- WCSLIB spherical coordinate transformation subroutines
-tabread.c
- Return stars from a tab table format catalog file for a given RA, Dec,
- and magnitude range or list of star numbers. Based on John Roll's
- Starbase format.
-tmcread.c
- Return 2MASS Point Source Catalog stars from the catalog as ungzipped from
- the DVD into (or linked from) a common root directory for a given RA, Dec,
- and magnitude range or list of star numbers. Both IDR2 and All-Sky release
- formats are supported.
-tnxpos.c
- tnxpos() uses the WCS keywords set up for IRAF's TNX projection to compute
- sky coordinates given image pixel X and Y. tnxpix() uses the WCS structure
- to compute image pixel X and Y given sky coordinates for such images. The
- projection is a tangent plane with corrections between the rotation and
- scaling and the actual projection.
-uacread.c
- Return USNO A and SA Catalog stars from their standard CDROM format
- files for a given RA, Dec, and magnitude range or list of star numbers.
-ubcread.c
- Return USNO B Catalog stars from their standard format files for a
- given RA, Dec, and magnitude range or list of star numbers.
-ucacread.c
- Return USNO UCAC1, UCAC2, or UCAC3 Catalog stars from their standard format
- files for a given RA, Dec, and magnitude range or list of star numbers.
-ujcread.c
- Return USNO UJ Catalog stars from its standard CDROM format files for
- a given RA, Dec, and magnitude range or list of star numbers.
-wcs.c
- Subroutines for using FITS or IRAF header spatial world coordinate
- system information.
-wcsinit.c
- Subroutines to initialize WCS structure from a FITS header
-wcscon.c
- Subroutines for converting between B1950, J2000, and galactic
- coordinates, mostly based on Starlink SLA_LIB subroutines.
-webread.c
- Open Starbase files across the Internet using HTTP queries
-worldpos.c
- worldpos() uses the WCS structure to compute sky coordinates given
- image pixel X and Y for images with header information for any of 8
- standard world coordinate systems. worldpix() uses the WCS structure
- to compute image pixel X and Y given sky coordinates for the same images.
- Mostly from NRAO.
-zpxpos.c
- zpxpos() uses the WCS keywords set up for IRAF's ZPX projection to
- compute sky coordinates given image pixel X and Y. zpxpix() uses
- the WCS structure to compute image pixel X and Y given sky coordinates
- for such images. The projection is a tangent plane with corrections
- between the rotation and scaling and the actual projection.
-
-fitshead.h
- Declarations of FITS header access subroutines
-fitsfile.h
- Declarations of image access subroutines and FITS table data structure.
-imio.h
- Declarations of subroutines to convert binary formats of numbers
-lwcs.h
- Constants used by star-finding and WCS-setting subroutines
-wcscat.h
- Declarations for star catalog data structures
-wcs.h
- Declaration of WCS data structure and useful conversions.
-wcslib.h
- Declarations for WCSLIB high level driver subroutines, trig and inverse
- trig functions, spherical map projection subroutines, spherical coordinate
- transformation drivers, and linear transformation subroutines
-
-* Notes:
- WCSLIB subroutines were written by Mark Calabretta of CSIRO and have
- been modified in several ways:
- 1) His distributed wcs.h has been changed to wcslib.h, and
- 2) wcstrig.c subroutine names have been changed from <function>d()
- to <function>deg() to avoid name conflicts on some operating
- systems.
- 3) ifndef's at start of headers files have been named to reflect
- the names of the header files, i.e. wcslib_h_ in wcslib.h.
- 4) All header files have been combined into wcslib.h
- 5) Emmanuel Bertin's SCAMP distortion has been added to proj.c:1