JSBSim Flight Dynamics Model  1.0 (02 March 2017)
An Open Source Flight Dynamics and Control Software Library in C++
FGGyro.cpp
1 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2 
3  Module: FGGyro.cpp
4  Author: Jon Berndt
5  Date started: 29 August 2009
6 
7  ------------- Copyright (C) 2009 -------------
8 
9  This program is free software; you can redistribute it and/or modify it under
10  the terms of the GNU Lesser General Public License as published by the Free Software
11  Foundation; either version 2 of the License, or (at your option) any later
12  version.
13 
14  This program is distributed in the hope that it will be useful, but WITHOUT
15  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
16  FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
17  details.
18 
19  You should have received a copy of the GNU Lesser General Public License along with
20  this program; if not, write to the Free Software Foundation, Inc., 59 Temple
21  Place - Suite 330, Boston, MA 02111-1307, USA.
22 
23  Further information about the GNU Lesser General Public License can also be found on
24  the world wide web at http://www.gnu.org.
25 
26 FUNCTIONAL DESCRIPTION
27 --------------------------------------------------------------------------------
28 
29 HISTORY
30 --------------------------------------------------------------------------------
31 
32 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
33 COMMENTS, REFERENCES, and NOTES
34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
35 
36 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
37 INCLUDES
38 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
39 
40 #include <iostream>
41 
42 #include "FGGyro.h"
43 #include "models/FGAccelerations.h"
44 #include "input_output/FGXMLElement.h"
45 #include "models/FGFCS.h"
46 
47 using namespace std;
48 
49 namespace JSBSim {
50 
51 IDENT(IdSrc,"$Id: FGGyro.cpp,v 1.11 2015/07/12 19:34:08 bcoconni Exp $");
52 IDENT(IdHdr,ID_GYRO);
53 
54 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
55 CLASS IMPLEMENTATION
56 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
57 
58 FGGyro::FGGyro(FGFCS* fcs, Element* element) : FGSensor(fcs, element),
59  FGSensorOrientation(element)
60 {
61  Accelerations = fcs->GetExec()->GetAccelerations();
62 
63  Debug(0);
64 }
65 
66 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
67 
68 FGGyro::~FGGyro()
69 {
70  Debug(1);
71 }
72 
73 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
74 
75 bool FGGyro::Run(void )
76 {
77  // There is no input assumed. This is a dedicated angular acceleration sensor.
78 
79  //aircraft rates
80  vAccel = mT * Accelerations->GetPQRdot();
81 
82  Input = vAccel(axis);
83 
84  ProcessSensorSignal();
85 
86  if (IsOutput) SetOutput();
87 
88  return true;
89 }
90 
91 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
92 // The bitmasked value choices are as follows:
93 // unset: In this case (the default) JSBSim would only print
94 // out the normally expected messages, essentially echoing
95 // the config files as they are read. If the environment
96 // variable is not set, debug_lvl is set to 1 internally
97 // 0: This requests JSBSim not to output any messages
98 // whatsoever.
99 // 1: This value explicity requests the normal JSBSim
100 // startup messages
101 // 2: This value asks for a message to be printed out when
102 // a class is instantiated
103 // 4: When this value is set, a message is displayed when a
104 // FGModel object executes its Run() method
105 // 8: When this value is set, various runtime state variables
106 // are printed out periodically
107 // 16: When set various parameters are sanity checked and
108 // a message is printed out when they go out of bounds
109 
110 void FGGyro::Debug(int from)
111 {
112  string ax[4] = {"none", "X", "Y", "Z"};
113 
114  if (debug_lvl <= 0) return;
115 
116  if (debug_lvl & 1) { // Standard console startup message output
117  if (from == 0) { // Constructor
118  cout << " Axis: " << ax[axis] << endl;
119  }
120  }
121  if (debug_lvl & 2 ) { // Instantiation/Destruction notification
122  if (from == 0) cout << "Instantiated: FGGyro" << endl;
123  if (from == 1) cout << "Destroyed: FGGyro" << endl;
124  }
125  if (debug_lvl & 4 ) { // Run() method entry print for FGModel-derived objects
126  }
127  if (debug_lvl & 8 ) { // Runtime state variables
128  }
129  if (debug_lvl & 16) { // Sanity checking
130  }
131  if (debug_lvl & 64) {
132  if (from == 0) { // Constructor
133  cout << IdSrc << endl;
134  cout << IdHdr << endl;
135  }
136  }
137 }
138 }
STL namespace.