1 // modelmgr.cxx - manage a collection of 3D models.
2 // Written by David Megginson, started 2002.
4 // This file is in the Public Domain, and comes with no warranty.
10 #include <simgear/compiler.h>
16 #include <simgear/scene/model/placement.hxx>
17 #include <simgear/scene/model/model.hxx>
19 #include <Main/fg_props.hxx>
20 #include <Scenery/scenery.hxx>
23 #include "modelmgr.hxx"
28 FGModelMgr::FGModelMgr ()
29 : _selector(new ssgSelector)
33 FGModelMgr::~FGModelMgr ()
35 for (unsigned int i = 0; i < _instances.size(); i++) {
36 globals->get_scenery()->get_models_branch()
37 ->removeKid(_instances[i]->model->getSceneGraph());
45 vector<SGPropertyNode_ptr> model_nodes =
46 fgGetNode("/models", true)->getChildren("model");
47 for (unsigned int i = 0; i < model_nodes.size(); i++) {
48 SGPropertyNode * node = model_nodes[i];
49 SG_LOG(SG_GENERAL, SG_INFO,
50 "Adding model " << node->getStringValue("name", "[unnamed]"));
51 Instance * instance = new Instance;
52 SGModelPlacement *model = new SGModelPlacement;
53 instance->model = model;
55 = sgLoad3DModel( globals->get_fg_root(),
56 node->getStringValue("path",
57 "Models/Geometry/glider.ac"),
59 globals->get_sim_time_sec() );
60 model->init( object );
62 // Set position and orientation either
63 // indirectly through property refs
64 // or directly with static values.
65 SGPropertyNode * child = node->getChild("longitude-deg-prop");
67 instance->lon_deg_node = fgGetNode(child->getStringValue(), true);
69 model->setLongitudeDeg(node->getDoubleValue("longitude-deg"));
71 child = node->getChild("latitude-deg-prop");
73 instance->lat_deg_node = fgGetNode(child->getStringValue(), true);
75 model->setLatitudeDeg(node->getDoubleValue("latitude-deg"));
77 child = node->getChild("elevation-ft-prop");
79 instance->elev_ft_node = fgGetNode(child->getStringValue(), true);
81 model->setElevationFt(node->getDoubleValue("elevation-ft"));
83 child = node->getChild("roll-deg-prop");
85 instance->roll_deg_node = fgGetNode(child->getStringValue(), true);
87 model->setRollDeg(node->getDoubleValue("roll-deg"));
89 child = node->getChild("pitch-deg-prop");
91 instance->pitch_deg_node = fgGetNode(child->getStringValue(), true);
93 model->setPitchDeg(node->getDoubleValue("pitch-deg"));
95 child = node->getChild("heading-deg-prop");
97 instance->heading_deg_node = fgGetNode(child->getStringValue(), true);
99 model->setHeadingDeg(node->getDoubleValue("heading-deg"));
101 // Add this model to the global scene graph
102 globals->get_scenery()->get_scene_graph()->addKid(model->getSceneGraph());
104 // Save this instance for updating
105 add_instance(instance);
115 FGModelMgr::unbind ()
120 FGModelMgr::update (double dt)
122 for (unsigned int i = 0; i < _instances.size(); i++) {
123 Instance * instance = _instances[i];
124 SGModelPlacement * model = instance->model;
126 // Optionally set position from properties
127 if (instance->lon_deg_node != 0)
128 model->setLongitudeDeg(instance->lon_deg_node->getDoubleValue());
129 if (instance->lat_deg_node != 0)
130 model->setLatitudeDeg(instance->lat_deg_node->getDoubleValue());
131 if (instance->elev_ft_node != 0)
132 model->setElevationFt(instance->elev_ft_node->getDoubleValue());
134 // Optionally set orientation from properties
135 if (instance->roll_deg_node != 0)
136 model->setRollDeg(instance->roll_deg_node->getDoubleValue());
137 if (instance->pitch_deg_node != 0)
138 model->setPitchDeg(instance->pitch_deg_node->getDoubleValue());
139 if (instance->heading_deg_node != 0)
140 model->setHeadingDeg(instance->heading_deg_node->getDoubleValue());
142 instance->model->update( globals->get_scenery()->get_center() );
147 FGModelMgr::add_instance (Instance * instance)
149 _instances.push_back(instance);
153 FGModelMgr::remove_instance (Instance * instance)
155 vector<Instance *>::iterator it;
156 for (it = _instances.begin(); it != _instances.end(); it++) {
157 if (*it == instance) {
158 _instances.erase(it);
168 // ssgSetNearFar(_nearplane, _farplane);
169 // ssgCullAndDraw(_scene);
174 ////////////////////////////////////////////////////////////////////////
175 // Implementation of FGModelMgr::Instance
176 ////////////////////////////////////////////////////////////////////////
178 FGModelMgr::Instance::Instance ()
189 FGModelMgr::Instance::~Instance ()
194 // end of modelmgr.cxx