src/thgeomag.h

   1 /*
   2  * Copyright (C) 2006 Martin Budaj
   3  *
   4  * $Date: $
   5  * $RCSfile: $
   6  * $Revision: $
   7  *
   8  * --------------------------------------------------------------------
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22  * --------------------------------------------------------------------
  23  */
  24
  25
  26 #ifndef thgeomag_h
  27 #define thgeomag_h
  28
  29 double thgeomag(double lat, double lon, double h, double dat);
  30               // lat, long in radians,
  31               // h = height above ellipsoid in metres,
  32               // dat decimal year
  33               // output declination in radians
  34
  35 #endif