/usr/include/wcstools/lwcs.h is in libwcstools-dev 3.9.2-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 | /*** File lwcs.h
*** April 25, 2006
*** By Jessica Mink, jmink@cfa.harvard.edu
*** Harvard-Smithsonian Center for Astrophysics
*** Copyright (C) 1999-2006
*** Smithsonian Astrophysical Observatory, Cambridge, MA, USA
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Correspondence concerning WCSTools should be addressed as follows:
Internet email: jmink@cfa.harvard.edu
Postal address: Jessica Mink
Smithsonian Astrophysical Observatory
60 Garden St.
Cambridge, MA 02138 USA
*/
/* The following are used in star finding (findstar.c) */
#define NSTATPIX 25 /* Stats are computed for +- this many pixels */
#define ISTATPIX 10 /* Stats are computed every this many pixels */
#define MAXWALK 20 /* Farthest distance to walk from seed */
#define BURNEDOUT 0 /* Clamp pixels brighter than this, if > 0 */
#define NITERATE 5 /* Number of iterations for sigma clipping */
#define RNOISE 50 /* Mean noise is from center +- this many pixels */
#define STARSIGMA 5.0 /* Stars must be this many sigmas above mean */
#define BORDER 10 /* Ignore this much of the edge */
#define MAXRAD 20 /* Maximum radius for a star */
#define MINRAD 1 /* Minimum radius for a star */
#define MINPEAK 10 /* Minimum peak for a star */
#define MINSEP 10 /* Minimum separations for stars */
/* The following are used in star matching (matchstar.c) */
#define FTOL 0.0000001 /* Fractional change of chisqr() to be done */
#define NMAX 3000 /* Maximum number of minimization iterations */
#define NPEAKS 20 /* Binning peak history */
#define MINMATCH 50 /* Stars to match to drop out of loop */
/* The following are used in world coordinate system fitting (imsetwcs.c) */
#define MINSTARS 3 /* Minimum stars from reference and image */
#define MAXSTARS 50 /* Default max star pairs to try matching */
#define MAGLIM1 0.0 /* Faintest reference catalog magnitude to use*/
#define MAGLIM2 0.0 /* Faintest reference catalog magnitude to use*/
#define PIXDIFF 10 /* +- this many pixels is a match */
#define PSCALE 0 /* Plate scale in arcsec/pixel */
/* (if nonzero, this overrides image header) */
#define NXYDEC 2 /* Number of decimal places in image coords */
#define MAXCAT 100 /* Max reference stars to keep in scat or imcat */
/* Jun 11 1999 Set BURNEDOUT to 0 so it is ignored
*
* Feb 15 2000 Drop MAXREF; add MAXCAT for imcat and scat; MAXSTARS from 25 to 50
*
* Oct 31 2001 Add MINMATCH and set default value to 50
*
* Mar 30 2006 Add NXYDEC and set default to 2 (constant value was 1)
* Apr 25 2006 Add RNOISE and set default to previous constant value of 50
*/
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