1 // model.cxx - manage a 3D aircraft model.
2 // Written by David Megginson, started 2002.
4 // This file is in the Public Domain, and comes with no warranty.
10 #include <string.h> // for strcmp()
12 #include <simgear/compiler.h>
13 #include <simgear/debug/logstream.hxx>
14 #include <simgear/structure/exception.hxx>
15 #include <simgear/misc/sg_path.hxx>
16 #include <simgear/scene/model/placement.hxx>
17 #include <simgear/scene/util/SGNodeMasks.hxx>
19 #include <Main/globals.hxx>
20 #include <Main/fg_props.hxx>
21 #include <Main/renderer.hxx>
22 #include <Main/viewmgr.hxx>
23 #include <Main/viewer.hxx>
24 #include <Scenery/scenery.hxx>
25 #include <Sound/fg_fx.hxx>
27 #include "model_panel.hxx"
29 #include "acmodel.hxx"
33 ////////////////////////////////////////////////////////////////////////
34 // Implementation of FGAircraftModel
35 ////////////////////////////////////////////////////////////////////////
37 FGAircraftModel::FGAircraftModel ()
39 _velocity(SGVec3f::zeros()),
51 smgr = (SGSoundMgr *)globals->get_subsystem("soundmgr");
52 _fx = new FGFX(smgr, "fx");
56 FGAircraftModel::~FGAircraftModel ()
58 osg::Node* node = _aircraft->getSceneGraph();
59 globals->get_scenery()->get_aircraft_branch()->removeChild(node);
65 FGAircraftModel::init ()
67 _aircraft = new SGModelPlacement;
68 string path = fgGetString("/sim/model/path", "Models/Geometry/glider.ac");
70 osg::Node *model = fgLoad3DModelPanel( path, globals->get_props());
71 _aircraft->init( model );
72 } catch (const sg_exception &ex) {
73 SG_LOG(SG_GENERAL, SG_ALERT, "Failed to load aircraft from " << path << ':');
74 SG_LOG(SG_GENERAL, SG_ALERT, " " << ex.getFormattedMessage());
75 SG_LOG(SG_GENERAL, SG_ALERT, "(Falling back to glider.ac.)");
76 osg::Node *model = fgLoad3DModelPanel( "Models/Geometry/glider.ac",
77 globals->get_props());
78 _aircraft->init( model );
80 osg::Node* node = _aircraft->getSceneGraph();
81 // Do not do altitude computations with that model
82 node->setNodeMask(~SG_NODEMASK_TERRAIN_BIT);
83 globals->get_scenery()->get_aircraft_branch()->addChild(node);
87 FGAircraftModel::bind ()
89 _lon = fgGetNode("position/longitude-deg", true);
90 _lat = fgGetNode("position/latitude-deg", true);
91 _alt = fgGetNode("position/altitude-ft", true);
92 _pitch = fgGetNode("orientation/pitch-deg", true);
93 _roll = fgGetNode("orientation/roll-deg", true);
94 _heading = fgGetNode("orientation/heading-deg", true);
95 _speed = fgGetNode("velocities/true-airspeed-kt", true);
96 _speed_up = fgGetNode("velocities/vertical-speed-fps", true);
100 FGAircraftModel::unbind ()
106 FGAircraftModel::update (double dt)
108 int view_number = globals->get_viewmgr()->get_current();
109 int is_internal = fgGetBool("/sim/current-view/internal");
111 if (view_number == 0 && !is_internal) {
112 _aircraft->setVisible(false);
114 _aircraft->setVisible(true);
117 _aircraft->setPosition(_lon->getDoubleValue(),
118 _lat->getDoubleValue(),
119 _alt->getDoubleValue());
120 _aircraft->setOrientation(_roll->getDoubleValue(),
121 _pitch->getDoubleValue(),
122 _heading->getDoubleValue());
125 // update model's audio sample values
126 // Get the Cartesian coordinates in meters
127 SGVec3d pos = SGVec3d::fromGeod(_aircraft->getPosition());
128 _fx->set_position( pos );
130 SGQuatd orient_m = SGQuatd::fromLonLat(_aircraft->getPosition());
131 orient_m *= SGQuatd::fromYawPitchRollDeg(_heading->getDoubleValue(),
132 _pitch->getDoubleValue(),
133 _roll->getDoubleValue());
134 SGVec3d orient = -orient_m.rotate(SGVec3d::e1());
135 _fx->set_orientation( toVec3f(orient) );
137 // For now assume the aircraft speed is always along the longitudinal
138 // axis, so sideslipping is not taken into account. This should be fine
140 _velocity = toVec3f(orient * _speed->getDoubleValue() * SG_KT_TO_FPS);
141 // _velocity[2] = _speed_up->getFloatValue();
142 _velocity *= SG_FEET_TO_METER;
143 _fx->set_velocity( _velocity );