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#ifndef wcslib_h_
#define wcslib_h_
/*=============================================================================
*
* WCSLIB - an implementation of the FITS WCS proposal.
* Copyright (C) 1995-2002, Mark Calabretta
*
* 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 WCSLIB may be directed to:
* Internet email: mcalabre@atnf.csiro.au
* Postal address: Dr. Mark Calabretta,
* Australia Telescope National Facility,
* P.O. Box 76,
* Epping, NSW, 2121,
* AUSTRALIA
*
* Author: Mark Calabretta, Australia Telescope National Facility
* $Id: wcs.h,v 2.9 2002/04/03 01:25:29 mcalabre Exp $
*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
#if !defined(__STDC__) && !defined(__cplusplus)
#ifndef const
#define const
#endif
#endif
#define MAXPV 100
#define WCS_NGRIDPOINTS 12 /* Number of WCS grid points / axis */
#define WCS_NGRIDPOINTS2 (WCS_NGRIDPOINTS*WCS_NGRIDPOINTS)
#define WCS_INVMAXDEG 9 /* Maximum inversion polynom degree */
#define WCS_INVACCURACY 0.04 /* Maximum inversion error (pixels) */
#define WCS_NRANGEPOINTS 32 /* Number of WCS range points / axis */
#ifndef PI
#define PI 3.1415926535898 /* never met before? */
#endif
/* DEG/ARCSEC is now D2S and ARCSEC/DEG is S2D */
/* #define DEG (PI/180.0) 1 deg in radians */
/* #define ARCSEC (DEG/3600.0) 1 arcsec in radians */
#define NAXISPV 2
/* poly.h
*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
* Part of: A program using polynomial fits
* Author: E.BERTIN (IAP)
* Contents: Include for poly.c
* Last modified: 03/03/2004
*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
*/
#ifndef _POLY_H_
#define _POLY_H_
/*--------------------------------- constants -------------------------------*/
#define POLY_MAXDIM 4 /* Max dimensionality of polynom */
#define POLY_MAXDEGREE 10 /* Max degree of the polynom */
/*---------------------------------- macros ---------------------------------*/
/*--------------------------- structure definitions -------------------------*/
typedef struct poly
{
double *basis; /* Current values of the basis functions */
double *coeff; /* Polynom coefficients */
int ncoeff; /* Number of coefficients */
int *group; /* Groups */
int ndim; /* dimensionality of the polynom */
int *degree; /* Degree in each group */
int ngroup; /* Number of different groups */
} polystruct;
/*---------------------------------- protos --------------------------------*/
extern polystruct *poly_init(int *group,int ndim,int *degree,int ngroup);
extern double poly_func(polystruct *poly, double *pos);
extern int cholsolve(double *a, double *b, int n),
*poly_powers(polystruct *poly);
extern void poly_addcste(polystruct *poly, double *cste),
poly_end(polystruct *poly),
poly_fit(polystruct *poly, double *x, double *y,
double *w, int ndata, double *extbasis),
poly_solve(double *a, double *b, int n),
svdsolve(double *a, double *b, int m, int n,
double *vmat, double *wmat);
#endif
extern int npcode;
extern char pcodes[26][4];
struct prjprm {
char code[4];
int flag;
double phi0, theta0;
double r0;
double p[10];
double w[20];
int n;
int npv;
double ppv[2*MAXPV];
struct poly *inv_x;
struct poly *inv_y;
#if __STDC__ || defined(__cplusplus)
int (*prjfwd)(const double, const double,
struct prjprm *,
double *, double *);
int (*prjrev)(const double, const double,
struct prjprm *,
double *, double *);
#else
int (*prjfwd)();
int (*prjrev)();
#endif
};
#if __STDC__ || defined(__cplusplus)
int prjset(const char [], struct prjprm *);
int prjfwd(const double, const double, struct prjprm *, double *, double *);
int prjrev(const double, const double, struct prjprm *, double *, double *);
int azpset(struct prjprm *);
int azpfwd(const double, const double, struct prjprm *, double *, double *);
int azprev(const double, const double, struct prjprm *, double *, double *);
int szpset(struct prjprm *);
int szpfwd(const double, const double, struct prjprm *, double *, double *);
int szprev(const double, const double, struct prjprm *, double *, double *);
int tanset(struct prjprm *);
int tanfwd(const double, const double, struct prjprm *, double *, double *);
int tanrev(const double, const double, struct prjprm *, double *, double *);
int stgset(struct prjprm *);
int stgfwd(const double, const double, struct prjprm *, double *, double *);
int stgrev(const double, const double, struct prjprm *, double *, double *);
int sinset(struct prjprm *);
int sinfwd(const double, const double, struct prjprm *, double *, double *);
int sinrev(const double, const double, struct prjprm *, double *, double *);
int arcset(struct prjprm *);
int arcfwd(const double, const double, struct prjprm *, double *, double *);
int arcrev(const double, const double, struct prjprm *, double *, double *);
int zpnset(struct prjprm *);
int zpnfwd(const double, const double, struct prjprm *, double *, double *);
int zpnrev(const double, const double, struct prjprm *, double *, double *);
int zeaset(struct prjprm *);
int zeafwd(const double, const double, struct prjprm *, double *, double *);
int zearev(const double, const double, struct prjprm *, double *, double *);
int airset(struct prjprm *);
int airfwd(const double, const double, struct prjprm *, double *, double *);
int airrev(const double, const double, struct prjprm *, double *, double *);
int cypset(struct prjprm *);
int cypfwd(const double, const double, struct prjprm *, double *, double *);
int cyprev(const double, const double, struct prjprm *, double *, double *);
int ceaset(struct prjprm *);
int ceafwd(const double, const double, struct prjprm *, double *, double *);
int cearev(const double, const double, struct prjprm *, double *, double *);
int carset(struct prjprm *);
int carfwd(const double, const double, struct prjprm *, double *, double *);
int carrev(const double, const double, struct prjprm *, double *, double *);
int merset(struct prjprm *);
int merfwd(const double, const double, struct prjprm *, double *, double *);
int merrev(const double, const double, struct prjprm *, double *, double *);
int sflset(struct prjprm *);
int sflfwd(const double, const double, struct prjprm *, double *, double *);
int sflrev(const double, const double, struct prjprm *, double *, double *);
int parset(struct prjprm *);
int parfwd(const double, const double, struct prjprm *, double *, double *);
int parrev(const double, const double, struct prjprm *, double *, double *);
int molset(struct prjprm *);
int molfwd(const double, const double, struct prjprm *, double *, double *);
int molrev(const double, const double, struct prjprm *, double *, double *);
int aitset(struct prjprm *);
int aitfwd(const double, const double, struct prjprm *, double *, double *);
int aitrev(const double, const double, struct prjprm *, double *, double *);
int copset(struct prjprm *);
int copfwd(const double, const double, struct prjprm *, double *, double *);
int coprev(const double, const double, struct prjprm *, double *, double *);
int coeset(struct prjprm *);
int coefwd(const double, const double, struct prjprm *, double *, double *);
int coerev(const double, const double, struct prjprm *, double *, double *);
int codset(struct prjprm *);
int codfwd(const double, const double, struct prjprm *, double *, double *);
int codrev(const double, const double, struct prjprm *, double *, double *);
int cooset(struct prjprm *);
int coofwd(const double, const double, struct prjprm *, double *, double *);
int coorev(const double, const double, struct prjprm *, double *, double *);
int bonset(struct prjprm *);
int bonfwd(const double, const double, struct prjprm *, double *, double *);
int bonrev(const double, const double, struct prjprm *, double *, double *);
int pcoset(struct prjprm *);
int pcofwd(const double, const double, struct prjprm *, double *, double *);
int pcorev(const double, const double, struct prjprm *, double *, double *);
int tscset(struct prjprm *);
int tscfwd(const double, const double, struct prjprm *, double *, double *);
int tscrev(const double, const double, struct prjprm *, double *, double *);
int cscset(struct prjprm *);
int cscfwd(const double, const double, struct prjprm *, double *, double *);
int cscrev(const double, const double, struct prjprm *, double *, double *);
int qscset(struct prjprm *);
int qscfwd(const double, const double, struct prjprm *, double *, double *);
int qscrev(const double, const double, struct prjprm *, double *, double *);
int raw_to_pv(struct prjprm *prj, double x, double y, double *xo, double *yo);
#else
int prjset(), prjfwd(), prjrev();
int azpset(), azpfwd(), azprev();
int szpset(), szpfwd(), szprev();
int tanset(), tanfwd(), tanrev();
int stgset(), stgfwd(), stgrev();
int sinset(), sinfwd(), sinrev();
int arcset(), arcfwd(), arcrev();
int zpnset(), zpnfwd(), zpnrev();
int zeaset(), zeafwd(), zearev();
int airset(), airfwd(), airrev();
int cypset(), cypfwd(), cyprev();
int ceaset(), ceafwd(), cearev();
int carset(), carfwd(), carrev();
int merset(), merfwd(), merrev();
int sflset(), sflfwd(), sflrev();
int parset(), parfwd(), parrev();
int molset(), molfwd(), molrev();
int aitset(), aitfwd(), aitrev();
int copset(), copfwd(), coprev();
int coeset(), coefwd(), coerev();
int codset(), codfwd(), codrev();
int cooset(), coofwd(), coorev();
int bonset(), bonfwd(), bonrev();
int pcoset(), pcofwd(), pcorev();
int tscset(), tscfwd(), tscrev();
int cscset(), cscfwd(), cscrev();
int qscset(), qscfwd(), qscrev();
int raw_to_pv();
#endif
extern const char *prjset_errmsg[];
extern const char *prjfwd_errmsg[];
extern const char *prjrev_errmsg[];
#define PRJSET 137
struct celprm {
int flag;
double ref[4];
double euler[5];
};
#if __STDC__ || defined(__cplusplus)
int celset(const char *, struct celprm *, struct prjprm *);
int celfwd(const char *,
const double, const double,
struct celprm *,
double *, double *,
struct prjprm *,
double *, double *);
int celrev(const char *,
const double, const double,
struct prjprm *,
double *, double *,
struct celprm *,
double *, double *);
#else
int celset(), celfwd(), celrev();
#endif
extern const char *celset_errmsg[];
extern const char *celfwd_errmsg[];
extern const char *celrev_errmsg[];
#define CELSET 137
struct linprm {
int flag;
int naxis;
double *crpix;
double *pc;
double *cdelt;
/* Intermediates. */
double *piximg;
double *imgpix;
};
#if __STDC__ || defined(__cplusplus)
int linset(struct linprm *);
int linfwd(const double[], struct linprm *, double[]);
int linrev(const double[], struct linprm *, double[]);
int matinv(const int, const double [], double []);
#else
int linset(), linfwd(), linrev(), matinv();
#endif
extern const char *linset_errmsg[];
extern const char *linfwd_errmsg[];
extern const char *linrev_errmsg[];
#define LINSET 137
struct wcsprm {
int flag;
char pcode[4];
char lngtyp[5], lattyp[5];
int lng, lat;
int cubeface;
};
#if __STDC__ || defined(__cplusplus)
int wcsset(const int,
const char[][9],
struct wcsprm *);
int wcsfwd(const char[][9],
struct wcsprm *,
const double[],
const double[],
struct celprm *,
double *,
double *,
struct prjprm *,
double[],
struct linprm *,
double[]);
int wcsrev(const char[][9],
struct wcsprm *,
const double[],
struct linprm *,
double[],
struct prjprm *,
double *,
double *,
const double[],
struct celprm *,
double[]);
int wcsmix(const char[][9],
struct wcsprm *,
const int,
const int,
const double[],
const double,
int,
double[],
const double[],
struct celprm *,
double *,
double *,
struct prjprm *,
double[],
struct linprm *,
double[]);
#else
int wcsset(), wcsfwd(), wcsrev(), wcsmix();
#endif
extern const char *wcsset_errmsg[];
extern const char *wcsfwd_errmsg[];
extern const char *wcsrev_errmsg[];
extern const char *wcsmix_errmsg[];
#define WCSSET 137
#if __STDC__ || defined(__cplusplus)
int sphfwd(const double, const double,
const double [],
double *, double *);
int sphrev(const double, const double,
const double [],
double *, double *);
#else
int sphfwd(), sphrev();
#endif
#ifdef PI
#undef PI
#endif
#ifdef D2R
#undef D2R
#endif
#ifdef R2D
#undef R2D
#endif
#ifdef SQRT2
#undef SQRT2
#endif
#ifdef SQRT2INV
#undef SQRT2INV
#endif
#ifdef D2S
#undef D2S
#endif
#ifdef S2D
#undef S2D
#endif
#define PI 3.141592653589793238462643
#define D2R PI/180.0
#define R2D 180.0/PI
#define S2D 1.0/3600.0
#define D2S 3600.0
#define SQRT2 1.4142135623730950488
#define SQRT2INV 1.0/SQRT2
#if !defined(__STDC__) && !defined(__cplusplus)
#ifndef const
#define const
#endif
#endif
#if __STDC__ || defined(__cplusplus)
double cosdeg(const double);
double sindeg(const double);
double tandeg(const double);
double acosdeg(const double);
double asindeg(const double);
double atandeg(const double);
double atan2deg(const double, const double);
#else
double cosdeg();
double sindeg();
double tandeg();
double acosdeg();
double asindeg();
double atandeg();
double atan2deg();
#endif
/* Domain tolerance for asin and acos functions. */
#define WCSTRIG_TOL 1e-10
#ifdef __cplusplus
}
#endif
#endif /* wcslib_h_ */
/* Feb 3 2000 Doug Mink - Make cplusplus ifdefs for braces all-inclusive
*
* Feb 15 2001 Doug Mink - Undefine math constants if already defined
* Sep 19 2001 Doug Mink - Update for WCSLIB 2.7, especially proj.h and cel.h
*
* Mar 12 2002 Doug Mink - Update for WCSLIB 2.8.2, especially proj.h
* Nov 29 2006 Doug Mink - Drop semicolon at end of C++ ifdef
* Jan 4 2007 Doug Mink - Drop extra declarations of SZP subroutines
*
* Mar 30 2011 Doug Mink - Add raw_to_pv() subroutine for SCAMP from Ed Los
*/
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