slalib.h

/***************************************************************************
 *
 *   Copyright (C) 2005 by Willem van Straten
 *   Licensed under the Academic Free License version 2.1
 *
 ***************************************************************************/
// psrchive/Util/third/star/slalib.h
 
#ifndef __SLA_DECL_H
#define __SLA_DECL_H
 
/*
  These C wrappers are required in order that the PSRCHIVE software may
  be linked against either the C or Fortran version of SLALIB.
*/
 
#ifdef __cplusplus
extern "C" {
#endif
 
void slaAltaz ( double ha, double dec, double phi,
                double *az, double *azd, double *azdd,
                double *el, double *eld, double *eldd,
                double *pa, double *pad, double *padd );
 
void slaDcs2c ( double a, double b, double v[3] );
 
void slaDmxv ( double dm[3][3], double va[3], double vb[3] );
 
double slaDsep ( double a1, double b1, double a2, double b2 );
 
double slaDtt ( double dju );
 
double slaDvdv ( double va[3], double vb[3] );
 
double slaEpj ( double date );
 
void slaEqgal ( double dr, double dd, double *dl, double *db );
 
void slaGaleq ( double dl, double db, double *dr, double *dd );
 
void slaEqecl ( double raj, double decj, double mjd,
                double *elong, double *elat );
 
void slaEcleq ( double elong, double elat, double mjd,
                double *raj, double *decj );
 
void slaEvp ( double date, double deqx,
              double dvb[3], double dpb[3],
              double dvh[3], double dph[3] );
 
 
double slaGmst ( double ut1 );
 
double slaPa ( double ha, double dec, double phi );
 
void slaPrec ( double ep0, double ep1, double rmatp[3][3] );
 
#ifdef __cplusplus
           }
#endif
 
#endif