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/*=============================================================================
*
* 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 Library 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 Library
* General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street,Fifth Floor, Boston, MA 02110-1301, 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
* $Id$
*=============================================================================
*
* This version of proj.h is based on the version in wcslib-2.9, but has
* been modified in the following ways by the Starlink project (e-mail:
* ussc@star.rl.ac.uk):
* - Support for non-ANSI C prototypes removed
* - Changed the name of the WCSLIB_PROJ macro to WCSLIB_PROJ_INCLUDED
* - Changed names of all functions and structures to avoid name
* clashes with wcslib.
* - Change the maximum number of projection parameters to 100.
* - Added definition of macro WCSLIB_MXPAR, and use it to define
* size of projection parameter array within AstPrjPrm structure.
* - Added component "p2" to the AstPrjPrm structure to hold projection
* parameters associated with the longitude axis (for use within
* the tpn.c file which holds an implementation of the old "TAN with
* correction terms" projection).
* - Added prototypes for TPN projection functions (defined in file
* tpn.c).
* - Added prototypes for HPX projection functions.
* - Added prototypes for XPH projection functions.
*===========================================================================*/
#ifndef WCSLIB_PROJ_INCLUDED
#define WCSLIB_PROJ_INCLUDED
#ifdef __cplusplus
extern "C" {
#endif
#define WCSLIB_MXPAR 100
extern int npcode;
extern char pcodes[26][4];
struct AstPrjPrm {
char code[4];
int flag;
double phi0, theta0;
double r0;
double *p;
double *p2;
double w[20];
int n;
int (*astPRJfwd)(const double, const double,
struct AstPrjPrm *,
double *, double *);
int (*astPRJrev)(const double, const double,
struct AstPrjPrm *,
double *, double *);
};
int astPRJset(const char [], struct AstPrjPrm *);
int astPRJfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astPRJrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astAZPset(struct AstPrjPrm *);
int astAZPfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astAZPrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astSZPset(struct AstPrjPrm *);
int astSZPfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astSZPrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astTANset(struct AstPrjPrm *);
int astTANfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astTANrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astSTGset(struct AstPrjPrm *);
int astSTGfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astSTGrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astSINset(struct AstPrjPrm *);
int astSINfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astSINrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astARCset(struct AstPrjPrm *);
int astARCfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astARCrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astZPNset(struct AstPrjPrm *);
int astZPNfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astZPNrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astZEAset(struct AstPrjPrm *);
int astZEAfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astZEArev(const double, const double, struct AstPrjPrm *, double *, double *);
int astAIRset(struct AstPrjPrm *);
int astAIRfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astAIRrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astCYPset(struct AstPrjPrm *);
int astCYPfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astCYPrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astCEAset(struct AstPrjPrm *);
int astCEAfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astCEArev(const double, const double, struct AstPrjPrm *, double *, double *);
int astCARset(struct AstPrjPrm *);
int astCARfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astCARrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astMERset(struct AstPrjPrm *);
int astMERfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astMERrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astSFLset(struct AstPrjPrm *);
int astSFLfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astSFLrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astPARset(struct AstPrjPrm *);
int astPARfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astPARrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astMOLset(struct AstPrjPrm *);
int astMOLfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astMOLrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astAITset(struct AstPrjPrm *);
int astAITfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astAITrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astCOPset(struct AstPrjPrm *);
int astCOPfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astCOPrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astCOEset(struct AstPrjPrm *);
int astCOEfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astCOErev(const double, const double, struct AstPrjPrm *, double *, double *);
int astCODset(struct AstPrjPrm *);
int astCODfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astCODrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astCOOset(struct AstPrjPrm *);
int astCOOfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astCOOrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astBONset(struct AstPrjPrm *);
int astBONfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astBONrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astPCOset(struct AstPrjPrm *);
int astPCOfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astPCOrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astTSCset(struct AstPrjPrm *);
int astTSCfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astTSCrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astCSCset(struct AstPrjPrm *);
int astCSCfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astCSCrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astQSCset(struct AstPrjPrm *);
int astQSCfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astQSCrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astHPXset(struct AstPrjPrm *);
int astHPXfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astHPXrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astXPHset(struct AstPrjPrm *);
int astXPHfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astXPHrev(const double, const double, struct AstPrjPrm *, double *, double *);
int astTPNset(struct AstPrjPrm *);
int astTPNfwd(const double, const double, struct AstPrjPrm *, double *, double *);
int astTPNrev(const double, const double, struct AstPrjPrm *, double *, double *);
extern const char *astPRJset_errmsg[];
extern const char *astPRJfwd_errmsg[];
extern const char *astPRJrev_errmsg[];
#ifdef __cplusplus
};
#endif
#endif /* WCSLIB_PROJ_INCLUDED */
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