1 /*******************************************************************************
6 Purpose: Encapsulates the landing gear elements
9 ------------- Copyright (C) 1999 Jon S. Berndt (jsb@hal-pc.org) -------------
11 This program is free software; you can redistribute it and/or modify it under
12 the terms of the GNU General Public License as published by the Free Software
13 Foundation; either version 2 of the License, or (at your option) any later
16 This program is distributed in the hope that it will be useful, but WITHOUT
17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
18 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
21 You should have received a copy of the GNU General Public License along with
22 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
23 Place - Suite 330, Boston, MA 02111-1307, USA.
25 Further information about the GNU General Public License can also be found on
26 the world wide web at http://www.gnu.org.
28 FUNCTIONAL DESCRIPTION
29 --------------------------------------------------------------------------------
32 --------------------------------------------------------------------------------
35 ********************************************************************************
37 *******************************************************************************/
41 /*******************************************************************************
42 ************************************ CODE **************************************
43 *******************************************************************************/
46 FGLGear::FGLGear(FGConfigFile* AC_cfg, FGFDMExec* fdmex) : vXYZ(3), Exec(fdmex)
49 *AC_cfg >> tmp >> name >> vXYZ(1) >> vXYZ(2) >> vXYZ(3) >> kSpring >> bDamp
50 >> statFCoeff >> brakeCoeff;
51 State = Exec->GetState();
52 Aircraft = Exec->GetAircraft();
53 Position = Exec->GetPosition();
57 /******************************************************************************/
59 FGLGear::~FGLGear(void)
63 /******************************************************************************/
65 FGColumnVector FGLGear::Force(void)
67 static FGColumnVector vForce(3);
68 static FGColumnVector vLocalGear(3);
70 vLocalGear = State->GetTb2l() * (vXYZ - Aircraft->GetXYZcg());
71 vLocalGear(3) = -vLocalGear(3);
76 /******************************************************************************/