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>
9 #include <Scenery/scenery.hxx>
11 #include "modelmgr.hxx"
15 FGModelMgr::FGModelMgr ()
16 : _selector(new ssgSelector)
20 FGModelMgr::~FGModelMgr ()
22 for (unsigned int i = 0; i < _instances.size(); i++) {
23 globals->get_scenery()->get_models_branch()
24 ->removeKid(_instances[i]->model->getSceneGraph());
32 vector<SGPropertyNode_ptr> model_nodes =
33 fgGetNode("/models", true)->getChildren("model");
34 for (unsigned int i = 0; i < model_nodes.size(); i++) {
35 SGPropertyNode * node = model_nodes[i];
36 SG_LOG(SG_GENERAL, SG_INFO,
37 "Adding model " << node->getStringValue("name", "[unnamed]"));
38 Instance * instance = new Instance;
39 FGModelPlacement * model = new FGModelPlacement;
40 instance->model = model;
41 model->init(node->getStringValue("path", "Models/Geometry/glider.ac"));
43 // Set position and orientation either
44 // indirectly through property refs
45 // or directly with static values.
46 SGPropertyNode * child = node->getChild("longitude-deg-prop");
48 instance->lon_deg_node = fgGetNode(child->getStringValue(), true);
50 model->setLongitudeDeg(node->getDoubleValue("longitude-deg"));
52 child = node->getChild("latitude-deg-prop");
54 instance->lat_deg_node = fgGetNode(child->getStringValue(), true);
56 model->setLatitudeDeg(node->getDoubleValue("latitude-deg"));
58 child = node->getChild("elevation-ft-prop");
60 instance->elev_ft_node = fgGetNode(child->getStringValue(), true);
62 model->setElevationFt(node->getDoubleValue("elevation-ft"));
64 child = node->getChild("roll-deg-prop");
66 instance->roll_deg_node = fgGetNode(child->getStringValue(), true);
68 model->setRollDeg(node->getDoubleValue("roll-deg"));
70 child = node->getChild("pitch-deg-prop");
72 instance->pitch_deg_node = fgGetNode(child->getStringValue(), true);
74 model->setPitchDeg(node->getDoubleValue("pitch-deg"));
76 child = node->getChild("heading-deg-prop");
78 instance->heading_deg_node = fgGetNode(child->getStringValue(), true);
80 model->setHeadingDeg(node->getDoubleValue("heading-deg"));
82 // Add this model to the global scene graph
83 globals->get_scenery()->get_scene_graph()->addKid(model->getSceneGraph());
85 // Save this instance for updating
86 _instances.push_back(instance);
101 FGModelMgr::update (double dt)
103 for (unsigned int i = 0; i < _instances.size(); i++) {
104 Instance * instance = _instances[i];
105 FGModelPlacement * model = instance->model;
107 // Optionally set position from properties
108 if (instance->lon_deg_node != 0)
109 model->setLongitudeDeg(instance->lon_deg_node->getDoubleValue());
110 if (instance->lat_deg_node != 0)
111 model->setLatitudeDeg(instance->lat_deg_node->getDoubleValue());
112 if (instance->elev_ft_node != 0)
113 model->setElevationFt(instance->elev_ft_node->getDoubleValue());
115 // Optionally set orientation from properties
116 if (instance->roll_deg_node != 0)
117 model->setRollDeg(instance->roll_deg_node->getDoubleValue());
118 if (instance->pitch_deg_node != 0)
119 model->setPitchDeg(instance->pitch_deg_node->getDoubleValue());
120 if (instance->heading_deg_node != 0)
121 model->setHeadingDeg(instance->heading_deg_node->getDoubleValue());
123 instance->model->update();
130 // ssgSetNearFar(_nearplane, _farplane);
131 // ssgCullAndDraw(_scene);
136 ////////////////////////////////////////////////////////////////////////
137 // Implementation of FGModelMgr::Instance
138 ////////////////////////////////////////////////////////////////////////
140 FGModelMgr::Instance::Instance ()
151 FGModelMgr::Instance::~Instance ()
156 // end of modelmgr.cxx