1 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
6 Purpose: Encapsulates the inertial frame forces (coriolis and centrifugal)
8 ------------- Copyright (C) 2000 Jon S. Berndt (jsb@hal-pc.org) -------------
10 This program is free software; you can redistribute it and/or modify it under
11 the terms of the GNU General Public License as published by the Free Software
12 Foundation; either version 2 of the License, or (at your option) any later
15 This program is distributed in the hope that it will be useful, but WITHOUT
16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
20 You should have received a copy of the GNU General Public License along with
21 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
22 Place - Suite 330, Boston, MA 02111-1307, USA.
24 Further information about the GNU General Public License can also be found on
25 the world wide web at http://www.gnu.org.
27 FUNCTIONAL DESCRIPTION
28 --------------------------------------------------------------------------------
31 --------------------------------------------------------------------------------
34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
36 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
38 #include "FGInertial.h"
39 #include "FGPropagate.h"
41 #include "FGMassBalance.h"
45 static const char *IdSrc = "$Id$";
46 static const char *IdHdr = ID_INERTIAL;
48 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
50 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
53 FGInertial::FGInertial(FGFDMExec* fgex) : FGModel(fgex)
58 RotationRate = 0.00007272205217;
60 RadiusReference = 20925650.00;
61 gAccelReference = GM/(RadiusReference*RadiusReference);
62 gAccel = GM/(RadiusReference*RadiusReference);
67 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
69 FGInertial::~FGInertial(void)
74 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
76 bool FGInertial::Run(void)
78 // Fast return if we have nothing to do ...
79 if (FGModel::Run()) return true;
82 double r = Propagate->GetRadius();
83 gAccel = GetGAccel(r);
88 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
90 bool FGInertial::LoadInertial(FGConfigFile* AC_cfg)
95 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
97 // The bitmasked value choices are as follows:
98 // unset: In this case (the default) JSBSim would only print
99 // out the normally expected messages, essentially echoing
100 // the config files as they are read. If the environment
101 // variable is not set, debug_lvl is set to 1 internally
102 // 0: This requests JSBSim not to output any messages
104 // 1: This value explicity requests the normal JSBSim
106 // 2: This value asks for a message to be printed out when
107 // a class is instantiated
108 // 4: When this value is set, a message is displayed when a
109 // FGModel object executes its Run() method
110 // 8: When this value is set, various runtime state variables
111 // are printed out periodically
112 // 16: When set various parameters are sanity checked and
113 // a message is printed out when they go out of bounds
115 void FGInertial::Debug(int from)
117 if (debug_lvl <= 0) return;
119 if (debug_lvl & 1) { // Standard console startup message output
120 if (from == 0) { // Constructor
124 if (debug_lvl & 2 ) { // Instantiation/Destruction notification
125 if (from == 0) cout << "Instantiated: FGInertial" << endl;
126 if (from == 1) cout << "Destroyed: FGInertial" << endl;
128 if (debug_lvl & 4 ) { // Run() method entry print for FGModel-derived objects
130 if (debug_lvl & 8 ) { // Runtime state variables
132 if (debug_lvl & 16) { // Sanity checking
134 if (debug_lvl & 64) {
135 if (from == 0) { // Constructor
136 cout << IdSrc << endl;
137 cout << IdHdr << endl;