00001 /************************************************************************** 00002 * jupiter.cxx 00003 * Written by Durk Talsma. Originally started October 1997, for distribution 00004 * with the FlightGear project. Version 2 was written in August and 00005 * September 1998. This code is based upon algorithms and data kindly 00006 * provided by Mr. Paul Schlyter. (pausch@saaf.se). 00007 * 00008 * This library is free software; you can redistribute it and/or 00009 * modify it under the terms of the GNU Library General Public 00010 * License as published by the Free Software Foundation; either 00011 * version 2 of the License, or (at your option) any later version. 00012 * 00013 * This library is distributed in the hope that it will be useful, 00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00016 * Library General Public License for more details. 00017 * 00018 * You should have received a copy of the GNU General Public License 00019 * along with this program; if not, write to the Free Software 00020 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 00021 * 00022 * $Id: jupiter_8cxx_source.html,v 1.3 2010/02/23 22:10:14 curt Exp $ 00023 **************************************************************************/ 00024 00025 #include <math.h> 00026 00027 #include "jupiter.hxx" 00028 00029 /************************************************************************* 00030 * Jupiter::Jupiter(double mjd) 00031 * Public constructor for class Jupiter 00032 * Argument: The current time. 00033 * the hard coded orbital elements for Jupiter are passed to 00034 * CelestialBody::CelestialBody(); 00035 ************************************************************************/ 00036 Jupiter::Jupiter(double mjd) : 00037 CelestialBody(100.4542, 2.7685400E-5, 00038 1.3030, -1.557E-7, 00039 273.8777, 1.6450500E-5, 00040 5.2025600, 0.000000, 00041 0.048498, 4.469E-9, 00042 19.89500, 0.08308530010, mjd) 00043 { 00044 } 00045 00046 Jupiter::Jupiter() : 00047 CelestialBody(100.4542, 2.7685400E-5, 00048 1.3030, -1.557E-7, 00049 273.8777, 1.6450500E-5, 00050 5.2025600, 0.000000, 00051 0.048498, 4.469E-9, 00052 19.89500, 0.08308530010) 00053 { 00054 } 00055 00056 /************************************************************************* 00057 * void Jupiter::updatePosition(double mjd, Star *ourSun) 00058 * 00059 * calculates the current position of Jupiter, by calling the base class, 00060 * CelestialBody::updatePosition(); The current magnitude is calculated using 00061 * a Jupiter specific equation 00062 *************************************************************************/ 00063 void Jupiter::updatePosition(double mjd, Star *ourSun) 00064 { 00065 CelestialBody::updatePosition(mjd, ourSun); 00066 magnitude = -9.25 + 5*log10( r*R ) + 0.014 * FV; 00067 } 00068 00069 00070 00071
1.6.1