1998-09-15 04:26:07 +00:00
|
|
|
/**************************************************************************
|
|
|
|
|
* uranus.cxx
|
|
|
|
|
* Written by Durk Talsma. Originally started October 1997, for distribution
|
|
|
|
|
* with the FlightGear project. Version 2 was written in August and
|
|
|
|
|
* September 1998. This code is based upon algorithms and data kindly
|
|
|
|
|
* provided by Mr. Paul Schlyter. (pausch@saaf.se).
|
|
|
|
|
*
|
|
|
|
|
* This program is free software; you can redistribute it and/or
|
|
|
|
|
* modify it under the terms of the GNU General Public License as
|
|
|
|
|
* published by the Free Software Foundation; either version 2 of the
|
|
|
|
|
* License, or (at your option) any later version.
|
|
|
|
|
*
|
|
|
|
|
* This program 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
|
|
|
|
|
* General Public License for more details.
|
|
|
|
|
*
|
|
|
|
|
* You should have received a copy of the GNU General Public License
|
|
|
|
|
* along with this program; if not, write to the Free Software
|
|
|
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
|
*
|
|
|
|
|
* $Id$
|
|
|
|
|
* (Log is kept at end of this file)
|
|
|
|
|
**************************************************************************/
|
1998-11-23 21:48:09 +00:00
|
|
|
|
|
|
|
|
#ifdef __BORLANDC__
|
|
|
|
|
# define exception c_exception
|
|
|
|
|
#endif
|
|
|
|
|
#include <math.h>
|
|
|
|
|
|
1998-09-15 04:26:07 +00:00
|
|
|
#include "uranus.hxx"
|
|
|
|
|
|
|
|
|
|
/*************************************************************************
|
|
|
|
|
* Uranus::Uranus(fgTIME *t)
|
|
|
|
|
* Public constructor for class Uranus
|
|
|
|
|
* Argument: The current time.
|
|
|
|
|
* the hard coded orbital elements for Uranus are passed to
|
|
|
|
|
* CelestialBody::CelestialBody();
|
|
|
|
|
************************************************************************/
|
|
|
|
|
Uranus::Uranus(fgTIME *t) :
|
|
|
|
|
CelestialBody(74.00050, 1.3978000E-5,
|
|
|
|
|
0.7733, 1.900E-8,
|
|
|
|
|
96.66120, 3.0565000E-5,
|
|
|
|
|
19.181710, -1.55E-8,
|
|
|
|
|
0.047318, 7.450E-9,
|
|
|
|
|
142.5905, 0.01172580600, t)
|
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*************************************************************************
|
|
|
|
|
* void Uranus::updatePosition(fgTIME *t, Star *ourSun)
|
|
|
|
|
*
|
|
|
|
|
* calculates the current position of Uranus, by calling the base class,
|
|
|
|
|
* CelestialBody::updatePosition(); The current magnitude is calculated using
|
|
|
|
|
* a Uranus specific equation
|
|
|
|
|
*************************************************************************/
|
|
|
|
|
void Uranus::updatePosition(fgTIME *t, Star *ourSun)
|
|
|
|
|
{
|
|
|
|
|
CelestialBody::updatePosition(t, ourSun);
|
|
|
|
|
magnitude = -7.15 + 5*log10( r*R) + 0.001 * FV;
|
|
|
|
|
}
|
