1 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3 Header: FGTranslation.h
7 ------------- Copyright (C) 1999 Jon S. Berndt (jsb@hal-pc.org) -------------
9 This program is free software; you can redistribute it and/or modify it under
10 the terms of the GNU General Public License as published by the Free Software
11 Foundation; either version 2 of the License, or (at your option) any later
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 General Public License for more
19 You should have received a copy of the GNU 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.
23 Further information about the GNU General Public License can also be found on
24 the world wide web at http://www.gnu.org.
27 --------------------------------------------------------------------------------
30 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
31 COMMENTS, REFERENCES, and NOTES
32 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
33 [1] Cooke, Zyda, Pratt, and McGhee, "NPSNET: Flight Simulation Dynamic Modeling
34 Using Quaternions", Presence, Vol. 1, No. 4, pp. 404-420 Naval Postgraduate
36 [2] D. M. Henderson, "Euler Angles, Quaternions, and Transformation Matrices",
38 [3] Richard E. McFarland, "A Standard Kinematic Model for Flight Simulation at
39 NASA-Ames", NASA CR-2497, January 1975
40 [4] Barnes W. McCormick, "Aerodynamics, Aeronautics, and Flight Mechanics",
41 Wiley & Sons, 1979 ISBN 0-471-03032-5
42 [5] Bernard Etkin, "Dynamics of Flight, Stability and Control", Wiley & Sons,
43 1982 ISBN 0-471-08936-2
45 The order of rotations used in this class corresponds to a 3-2-1 sequence,
46 or Y-P-R, or Z-Y-X, if you prefer.
48 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
50 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
52 #ifndef FGTRANSLATION_H
53 #define FGTRANSLATION_H
55 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
57 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
60 # include <simgear/compiler.h>
61 # ifdef SG_HAVE_STD_INCLUDES
73 #define ID_TRANSLATION "$Id$"
75 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
77 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
79 class FGTranslation : public FGModel {
81 FGTranslation(FGFDMExec*);
84 inline FGColumnVector GetUVW (void) { return vUVW; }
85 inline float GetUVW (int idx) { return vUVW(idx); }
86 inline FGColumnVector GetUVWdot(void) { return vUVWdot; }
87 inline float GetUVWdot(int idx) { return vUVWdot(idx); }
88 inline FGColumnVector GetNcg (void) { return vNcg; }
89 inline float GetNcg (int idx) { return vNcg(idx); }
91 inline float Getalpha(void) { return alpha; }
92 inline float Getbeta (void) { return beta; }
93 inline float Getqbar (void) { return qbar; }
94 inline float GetVt (void) { return Vt; }
95 inline float GetMach (void) { return Mach; }
96 inline float Getadot (void) { return adot; }
97 inline float Getbdot (void) { return bdot; }
99 void SetUVW(FGColumnVector tt) { vUVW = tt; }
101 inline void Setalpha(float tt) { alpha = tt; }
102 inline void Setbeta (float tt) { beta = tt; }
103 inline void Setqbar (float tt) { qbar = tt; }
104 inline void SetVt (float tt) { Vt = tt; }
105 inline void SetMach (float tt) { Mach=tt; }
106 inline void Setadot (float tt) { adot = tt; }
107 inline void Setbdot (float tt) { bdot = tt; }
109 inline void SetAB(float t1, float t2) { alpha=t1; beta=t2; }
117 FGColumnVector vUVWdot;
120 FGColumnVector vForces;
121 FGColumnVector vEuler;
122 FGColumnVector vlastUVWdot;
125 float Vt, qbar, Mach;
135 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%