1 /**********************************************************************
3 FILENAME: uiuc_wrapper.cpp
5 ----------------------------------------------------------------------
7 DESCRIPTION: A wrapper(interface) between the UIUC Aeromodel (C++ files)
8 and the LaRCsim FDM (C files)
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14 ----------------------------------------------------------------------
18 ----------------------------------------------------------------------
20 HISTORY: 01/26/2000 initial release
22 ----------------------------------------------------------------------
24 AUTHOR(S): Bipin Sehgal <bsehgal@uiuc.edu>
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30 ----------------------------------------------------------------------
34 ----------------------------------------------------------------------
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42 ----------------------------------------------------------------------
46 ----------------------------------------------------------------------
48 COPYRIGHT: (C) 2000 by Michael Selig
50 This program is free software; you can redistribute it and/or
51 modify it under the terms of the GNU General Public License
52 as published by the Free Software Foundation.
54 This program is distributed in the hope that it will be useful,
55 but WITHOUT ANY WARRANTY; without even the implied warranty of
56 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
57 GNU General Public License for more details.
59 You should have received a copy of the GNU General Public License
60 along with this program; if not, write to the Free Software
61 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
62 USA or view http://www.gnu.org/copyleft/gpl.html.
64 **********************************************************************/
66 #include <simgear/compiler.h>
68 #include "uiuc_aircraft.h"
69 #include "uiuc_aircraftdir.h"
70 #include "uiuc_coefficients.h"
71 #include "uiuc_engine.h"
72 #include "uiuc_aerodeflections.h"
73 #include "uiuc_recorder.h"
74 #include "uiuc_menu.h"
75 #include "uiuc_betaprobe.h"
76 #include <FDM/LaRCsim/ls_generic.h>
81 extern "C" void uiuc_init_aeromodel ();
82 extern "C" void uiuc_force_moment(double dt);
83 extern "C" void uiuc_engine_routine();
85 AIRCRAFT *aircraft_ = new AIRCRAFT;
86 AIRCRAFTDIR *aircraftdir_ = new AIRCRAFTDIR;
88 void uiuc_init_aeromodel ()
92 if (aircraft_dir != "")
93 aircraft = aircraft_dir + "/";
95 aircraft += "aircraft.dat";
96 cout << "We are using "<< aircraft << endl;
97 uiuc_initializemaps(); // Initialize the <string,int> maps
98 uiuc_menu(aircraft); // Read the specified aircraft file
101 void uiuc_force_moment(double dt)
103 double qS = Dynamic_pressure * Sw;
104 double qScbar = qS * cbar;
105 double qSb = qS * bw;
107 uiuc_aerodeflections(dt);
110 /* Calculate the wind axis forces */
113 CD = -CX * cos(Alpha) - CZ * sin(Alpha);
114 CL = CX * sin(Alpha) - CZ * cos(Alpha);
116 F_X_wind = -1 * CD * qS;
118 F_Z_wind = -1 * CL * qS;
120 /* wind-axis to body-axis transformation */
121 F_X_aero = F_X_wind * Cos_alpha * Cos_beta - F_Y_wind * Cos_alpha * Sin_beta - F_Z_wind * Sin_alpha;
122 F_Y_aero = F_X_wind * Sin_beta + F_Y_wind * Cos_beta;
123 F_Z_aero = F_X_wind * Sin_alpha * Cos_beta - F_Y_wind * Sin_alpha * Sin_beta + F_Z_wind * Cos_alpha;
125 /* Moment calculations */
127 M_m_aero = Cm * qScbar;
130 /* Call fligt data recorder */
131 if (Simtime >= recordStartTime)
135 void uiuc_engine_routine()
140 //end uiuc_wrapper.cpp