1 // External.cxx -- interface to the "External"-ly driven flight model
3 // Written by Curtis Olson, started November 1999.
5 // Copyright (C) 1999 Curtis L. Olson - curt@flightgear.org
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #include "External.hxx"
27 FGExternal::FGExternal( double dt ) {
32 FGExternal::~FGExternal() {
36 // Initialize the External flight model, dt is the time increment
37 // for each subsequent iteration through the EOM
38 void FGExternal::init() {
39 // cout << "FGExternal::init()" << endl;
41 // Explicitly call the superclass's
47 // Run an iteration of the EOM. This is essentially a NOP here
48 // because these values are getting filled in elsewhere based on
50 void FGExternal::update( int multiloop ) {
51 // cout << "FGExternal::update()" << endl;
53 // double time_step = (1.0 / fgGetInt("/sim/model-hz"))