step/stepcore

constants.cc

00001 /* This file is part of StepCore library.
00002    Copyright (C) 2007 Vladimir Kuznetsov <ks.vladimir@gmail.com>
00003 
00004    StepCore library is free software; you can redistribute it and/or modify
00005    it under the terms of the GNU General Public License as published by
00006    the Free Software Foundation; either version 2 of the License, or
00007    (at your option) any later version.
00008 
00009    StepCore library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012    GNU General Public License for more details.
00013 
00014    You should have received a copy of the GNU General Public License
00015    along with StepCore; if not, write to the Free Software
00016    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00017 */
00018 
00019 #include "constants.h"
00020 
00021 #include <math.h>
00022 #include <float.h>
00023 
00024 namespace StepCore {
00025 
00026 #ifndef M_PI
00027 const double Constants::Pi = 3.1415926535897932385;
00028 #else
00029 const double Constants::Pi = M_PI;
00030 #endif
00031 
00032 const double Constants::SpeedOfLight = 2.99792458e8;
00033 const double Constants::Magnetic = 1.2566e-6;
00034 const double Constants::Electric = 8.8542e-12;
00035 
00036 // XXX: is CoulombError correct ?
00037 const double Constants::Coulomb = 8.987551787e9;
00038 const double Constants::CoulombError = 8.987551787e9 * 1e-5;
00039 
00040 const double Constants::Gravitational = 6.67428e-11;
00041 const double Constants::GravitationalError = 6.67428e-11 * 1e-4;
00042 
00043 const double Constants::Planck = 6.62606896e-34;
00044 const double Constants::PlanckError = 6.62606896e-34 * 5e-8;
00045 
00046 const double Constants::Boltzmann = 1.3806504e-23;
00047 const double Constants::BoltzmannError = 1.3806504e-23 * 1.8e-6;
00048 
00049 const double Constants::WeightAccel = 9.80665;
00050 const double Constants::WeightAccelError = 0.00001;
00051 
00052 } // namespace StepCore
00053
step/stepcore

constants.cc

step/stepcore

kdeedu
