/*=============================================================================
*
*   WCSLIB - an implementation of the FITS WCS proposal.
*   Copyright (C) 1995-1999, 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., 675 Mass Ave, Cambridge, MA 02139, 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 2.6 1999/05/26 01:32:18 mcalabre Exp $
*===========================================================================*/

#ifndef WCSLIB_WCS
#define WCSLIB_WCS

#include "cel.h"
#include "lin.h"

#ifdef __cplusplus
extern "C" {
#endif

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

#ifdef __cplusplus
};
#endif

#endif /* WCSLIB_WCS */