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.
8 #include <Main/fg_props.hxx>
10 #include "modelmgr.hxx"
14 FGModelMgr::FGModelMgr ()
15 : _selector(new ssgSelector)
19 FGModelMgr::~FGModelMgr ()
21 for (int i = 0; i < _instances.size(); i++) {
22 globals->get_models_branch()
23 ->removeKid(_instances[i]->model->getSceneGraph());
31 vector<SGPropertyNode_ptr> model_nodes =
32 fgGetNode("/models", true)->getChildren("model");
33 for (int i = 0; i < model_nodes.size(); i++) {
34 SGPropertyNode * node = model_nodes[i];
35 SG_LOG(SG_GENERAL, SG_INFO,
36 "Adding model " << node->getStringValue("name", "[unnamed]"));
37 Instance * instance = new Instance;
38 FG3DModel * model = new FG3DModel;
39 instance->model = model;
40 model->init(node->getStringValue("path", "Models/Geometry/glider.ac"));
42 // Set position and orientation either
43 // indirectly through property refs
44 // or directly with static values.
45 SGPropertyNode * child = node->getChild("longitude-deg-prop");
47 instance->lon_deg_node = fgGetNode(child->getStringValue(), true);
49 model->setLongitudeDeg(node->getDoubleValue("longitude-deg"));
51 child = node->getChild("latitude-deg-prop");
53 instance->lat_deg_node = fgGetNode(child->getStringValue(), true);
55 model->setLatitudeDeg(node->getDoubleValue("latitude-deg"));
57 child = node->getChild("elevation-ft-prop");
59 instance->elev_ft_node = fgGetNode(child->getStringValue(), true);
61 model->setElevationFt(node->getDoubleValue("elevation-ft"));
63 child = node->getChild("roll-deg-prop");
65 instance->roll_deg_node = fgGetNode(child->getStringValue(), true);
67 model->setRollDeg(node->getDoubleValue("roll-deg"));
69 child = node->getChild("pitch-deg-prop");
71 instance->pitch_deg_node = fgGetNode(child->getStringValue(), true);
73 model->setPitchDeg(node->getDoubleValue("pitch-deg"));
75 child = node->getChild("heading-deg-prop");
77 instance->heading_deg_node = fgGetNode(child->getStringValue(), true);
79 model->setHeadingDeg(node->getDoubleValue("heading-deg"));
81 // Add this model to the global scene graph
82 globals->get_scene_graph()->addKid(model->getSceneGraph());
84 // Save this instance for updating
85 _instances.push_back(instance);
100 FGModelMgr::update (double dt)
102 for (int i = 0; i < _instances.size(); i++) {
103 Instance * instance = _instances[i];
104 FG3DModel * model = instance->model;
106 // Optionally set position from properties
107 if (instance->lon_deg_node != 0)
108 model->setLongitudeDeg(instance->lon_deg_node->getDoubleValue());
109 if (instance->lat_deg_node != 0)
110 model->setLatitudeDeg(instance->lat_deg_node->getDoubleValue());
111 if (instance->elev_ft_node != 0)
112 model->setElevationFt(instance->elev_ft_node->getDoubleValue());
114 // Optionally set orientation from properties
115 if (instance->roll_deg_node != 0)
116 model->setRollDeg(instance->roll_deg_node->getDoubleValue());
117 if (instance->pitch_deg_node != 0)
118 model->setPitchDeg(instance->pitch_deg_node->getDoubleValue());
119 if (instance->heading_deg_node != 0)
120 model->setHeadingDeg(instance->heading_deg_node->getDoubleValue());
122 instance->model->update(dt);
129 // ssgSetNearFar(_nearplane, _farplane);
130 // ssgCullAndDraw(_scene);
135 ////////////////////////////////////////////////////////////////////////
136 // Implementation of FGModelMgr::Instance
137 ////////////////////////////////////////////////////////////////////////
139 FGModelMgr::Instance::Instance ()
150 FGModelMgr::Instance::~Instance ()
155 // end of modelmgr.cxx